Error Code Library

1,125 error codes across 56 brands and 31 appliance types.

Whirlpool

Dishwasher47 codes

Code	Issue	Severity	Difficulty
LEAKING	A Whirlpool dishwasher leaking has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-DRAINING	A Whirlpool dishwasher not draining has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-DRYING	A Whirlpool dishwasher not drying dishes has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-FILLING	Inlet Valve, Float, and Supply Fixes mediumintermediate	medium	intermediate
NOT-SPINNING	The upper or lower spray arms are not rotating during the wash cycle, resulting in dishes that come out with food still on them or cloudy with detergent residue. Water is present in the tub but is not being distributed. mediumbeginner	medium	beginner
STOPS-MID-CYCLE	The dishwasher halts partway through a wash, rinse, or dry cycle - sometimes with a blinking light, sometimes silently. The machine has detected a fault condition or lost power mid-run and entered a pause state. mediumbeginner	medium	beginner
WONT-START	A Whirlpool dishwasher won't start has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
E1 F1	A relay on the main control board has failed - stuck open or closed - preventing a critical circuit from being switched correctly highadvanced	high	advanced
F4 E3	The thermal protection fuse has tripped or blown due to an overheat condition - the dishwasher shuts down to prevent damage to the tub or surrounding cabinetry highintermediate	high	intermediate
F7 E1	The heating element circuit has failed - element burned out, heater relay on the control board has failed, or the thermistor is reporting no temperature rise highintermediate	high	intermediate
F8	The control board lost communication with the wash motor control circuit - a signal-level fault rather than a full motor hardware failure highintermediate	high	intermediate
F8 E4	Wash motor circuit fault -- the motor failed to start, drew a current spike, or the motor control relay on the board has failed highintermediate	high	intermediate
WONT-TURN-ON	The dishwasher shows no signs of life when the power button is pressed - no lights, no beeps, no motor hum. This indicates the appliance is not receiving power, the door latch is not fully engaged, or the control board has failed. highbeginner	high	beginner
4-3	4 blinks, pause, 3 blinks - water heating fault on pre-2010 Whirlpool dishwashers using blink-code diagnostics instead of alphanumeric display codes moderatebeginner	moderate	beginner
DOOR-WONT-CLOSE	The dishwasher door will not latch closed - preventing any cycle from starting, caused by a misaligned latch strike, broken latch assembly, or overloaded bottom rack preventing door swing moderatebeginner	moderate	beginner
E1 F6	Water inlet fault - same fault as F6 E1 displayed in reversed code order on certain model variants moderatebeginner	moderate	beginner
E1 F9	Drain cycle did not complete within the allowed time -- the pump ran but water level failed to drop fast enough moderatebeginner	moderate	beginner
E2 F2	Water entering or inside the dishwasher did not reach the minimum expected temperature within the heating window -- could indicate a cold supply issue or a failed heating assembly moderateintermediate	moderate	intermediate
E4	The NTC thermistor (water temperature sensor) is reading outside the expected resistance range -- either an open circuit, shorted sensor, or actual water temperature extreme moderateintermediate	moderate	intermediate
F6 E1	Water did not reach the required fill level within the allotted time - inlet valve failed to open, supply pressure is too low, or the valve screen is blocked moderatebeginner	moderate	beginner
F9 E1	Drain cycle exceeded its allowed time limit -- pump ran but water did not evacuate the tub fast enough moderatebeginner	moderate	beginner
FA E4	The door latch or door switch is sending an incorrect signal to the motor control circuit - the dishwasher interprets the door as open or latched improperly while a motor command is active moderateintermediate	moderate	intermediate
H2O	The fill sensor or float switch did not register water entering the tub - the inlet valve may not have opened or the sensor failed to detect the fill moderatebeginner	moderate	beginner
NOT-FILLING	The dishwasher starts a cycle but no water enters the tub -- inlet valve fault, supply issue, or float switch stuck moderatebeginner	moderate	beginner
NOT-HEATING	The dishwasher completes cycles but water stays cold and dishes come out wet - heating element, thermostat, or control board heater relay fault moderateintermediate	moderate	intermediate
NOT-SPRAYING	Water enters the tub but the spray arms are not rotating and spraying - caused by blocked spray arm holes, a failed wash motor, or the spray arms being physically obstructed moderatebeginner	moderate	beginner
WONT-DRAIN	Standing water remains in the tub at cycle end - drain pump ran but water did not fully evacuate, or pump did not run at all moderatebeginner	moderate	beginner
BEEPING	Repeated beeping from the dishwasher after or during a cycle - end-of-cycle notification, error code alert, door-open warning, or control board communication fault lowbeginner	low	beginner
CLEAN-BLINK	The Clean light is flashing after a cycle -- the sanitize or cycle completion condition was not properly met, or the cycle was interrupted lowbeginner	low	beginner
CONTROL-LOCK	Control Lock (child lock) is engaged on the control panel - all buttons except Power are disabled to prevent accidental operation lowbeginner	low	beginner
DIAG-MODE	Service diagnostic mode -- a hidden self-test sequence that activates all components and displays stored fault codes not shown during normal operation lowbeginner	low	beginner
HUB	Hub page covering all Whirlpool dishwasher error codes across both modern F/E format and older blink-code format models lowbeginner	low	beginner
LIGHTS-FLASH	Multiple control panel lights flashing in a pattern -- used by older models as the diagnostic code system, or indicating a fault condition on newer models lowbeginner	low	beginner
NORMAL-BLINK	The Normal cycle button or indicator is flashing - typically indicates a cycle was interrupted, a fault was detected during a Normal cycle, or the control board is in a fault-signaling state lowbeginner	low	beginner
NOT-CLEANING	Dishes coming out dirty, with food residue, or with a film - caused by spray arm blockage, detergent issues, clogged filter, or inadequate water temperature lowbeginner	low	beginner
NOT-SPINNING	Spray arms are stationary during the wash cycle - blocked by a dish, clogged jet holes, or insufficient water pressure from the wash motor lowbeginner	low	beginner
NOT-STARTING	Dishwasher does not begin a cycle when Start is pressed - could be door latch, control lock, power supply, or delayed start setting lowbeginner	low	beginner
QUIET-PARTNER	The Whirlpool Quiet Partner series refers to noise-rated dishwasher lines from Quiet Partner I through Quiet Partner V - this is not an error code but a product line identifier lowbeginner	low	beginner
RED-LIGHT	A red light on a Whirlpool dishwasher can indicate a running cycle indicator, a sanitize status light, a door open warning, or a fault indicator depending on the model and its position lowbeginner	low	beginner
RESET	Soft reset, hard reset, and service mode reset procedures for all Whirlpool dishwasher models lowbeginner	low	beginner
SANITIZE-BLINK	The Sanitize indicator is flashing after a cycle - the water did not reach or maintain the required 150F sanitize temperature for the NSF-required duration lowbeginner	low	beginner
SELF-START	The dishwasher starts a cycle without being intentionally activated - caused by Delay Start timer expiring, a stuck relay on the control board, or a malfunctioning touchpad lowbeginner	low	beginner
SMELL	Unpleasant odors from the dishwasher tub - caused by food debris in the filter, biofilm in the sump, mold in the door gasket, or a drain that is not clearing fully lowbeginner	low	beginner
START-BLINK	The Start or Start/Pause button is flashing - indicates the cycle is paused, waiting for door closure, or a fault has paused operation and the unit is requesting a user response lowbeginner	low	beginner
TROUBLESHOOT	Comprehensive troubleshooting guide covering the most common Whirlpool dishwasher problems: error codes, no start, no water, no drain, no heat, and poor cleaning lowbeginner	low	beginner
WONT-DRY	Dishes come out wet after the drying cycle - heating element fault, rinse aid dispenser empty, or Heated Dry option not selected lowbeginner	low	beginner

Dryer21 codes

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Code	Issue	Severity	Difficulty
HUB-CODES	Whirlpool Dryer Error Codes: F01, E1, F22, AF Complete Guide mediumintermediate	medium	intermediate
NOISE	A Whirlpool dryer making noise has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-HEATING	A Whirlpool dryer not heating has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	A Whirlpool dryer not spinning or tumbling has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-TURNING-OFF	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
SMELLS	A Whirlpool dryer smells like burning has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
SMELLS-BURNING	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	A Whirlpool dryer takes too long to dry has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
WONT-START	A Whirlpool dryer won't start has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
E1	The thermistor (temperature sensor) circuit is reading either open (broken/disconnected) or shorted (internally failed to near-zero resistance). The control board cannot receive valid temperature data and has faulted the cycle. highintermediate	high	intermediate
F01	The main electronic control board has detected an internal fault or has failed. The control board is the central computer that manages all dryer functions including cycle timing, heat control, and motor operation. highadvanced	high	advanced
F22	The exhaust temperature has exceeded safe operating limits, causing the high-limit thermostat to trip. This is a thermal protection event triggered by either a restricted vent or a failed cycling thermostat allowing runaway heat. highbeginner	high	beginner
F4 E4	The dryer's exhaust airflow is restricted or completely blocked. The control board detected that hot air cannot escape through the vent system at a safe rate. highbeginner	high	beginner
F70	The main control board and the user interface (UI) board have lost communication with each other. These two boards exchange data constantly during operation; when the signal drops or becomes corrupted, F70 triggers. highadvanced	high	advanced
F9 E2	The outlet thermistor (exhaust temperature sensor mounted at the dryer's exhaust duct opening) has failed or is reading outside the expected range. This sensor monitors the temperature of air leaving the drum. highintermediate	high	intermediate
F3 E3	The moisture sensor bars inside the drum have failed, lost continuity, or are coated with residue that prevents accurate moisture detection. The dryer cannot determine when laundry is dry. moderateintermediate	moderate	intermediate
CABRIO-DRYER-DIAG	Whirlpool Cabrio dryers use a rotating selector knob to enter diagnostic mode rather than button combinations. The specific knob rotation sequence activates the service test mode, which displays stored fault codes and allows component testing. lowbeginner	low	beginner
DRYER-DIAG	Whirlpool dryers with digital control panels include a service mode that stores fault codes from previous cycles. These codes use an F/E format where F identifies the failed system and E identifies the specific fault, helping you pinpoint the issue before disassembly. lowbeginner	low	beginner
HUB	Reference guide covering all Whirlpool dryer fault codes, their causes, and repair paths for the WED series and shared Maytag/Amana platform. lowbeginner	low	beginner
PF	Power was interrupted while the dryer was running mid-cycle. PF is an informational notification, not a fault code. The dryer is telling you it lost power and the cycle was cut short. lowbeginner	low	beginner

Microwave5 codes

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Code	Issue	Severity	Difficulty
DOOR-ERROR	The 'Open/Close Door' or 'Door' error on Whirlpool microwaves means the door interlock switches are not registering the door as properly closed. Microwaves have 3 door interlock switches as a safety system - all 3 must confirm the door is closed before the magnetron will energize. mediumintermediate	medium	intermediate
F2 E1	F2E1 on a Whirlpool microwave means the control board detected a touchpad key being pressed when no key should be active. This is a keypad membrane short circuit, typically from steam moisture penetrating the membrane layers. mediumbeginner	medium	beginner
HUB	Whirlpool over-the-range and countertop microwaves use F/E combination error codes similar to Whirlpool washers and dishwashers. The most common codes are F1E4 (relay board fault), F1E5 (humidity sensor), F1E6 (magnetron relay), F2E1 (keypad short), and F6 (communication fault). mediumintermediate	medium	intermediate
F1 E4	F1E4 on a Whirlpool microwave indicates the control board detected that the microwave power relay is stuck in the closed (energized) position. This is a critical safety shutdown - if the relay is stuck closed, the magnetron could run uncontrolled. highadvanced	high	advanced
F1 E6	F1E6 on a Whirlpool microwave indicates the magnetron relay circuit has failed. The magnetron is the component that generates microwaves, and the relay controls power to it. F1E6 means the relay is either stuck or not responding to control board commands. highadvanced	high	advanced

Multi1 codes

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Code	Issue	Severity	Difficulty
DIAGNOSTIC-MODE-CODES	Whirlpool appliances store fault codes in memory that can be retrieved by entering a hidden diagnostic or service mode. The method varies by appliance type, but all Whirlpool products record errors to help technicians and owners diagnose problems without guesswork. lowbeginner	low	beginner

Oven26 codes

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Code	Issue	Severity	Difficulty
DOOR-STUCK	A Whirlpool oven door won't open after self-clean has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
E1 F6	E1F6 on a Whirlpool oven means the temperature sensor reading was out of expected range when the oven first powered on. This is the display-order variant of F6E1. mediumintermediate	medium	intermediate
F1 E1	F1E1 on a Whirlpool oven indicates a control board internal communication fault or inter-board communication failure on double oven models. mediumintermediate	medium	intermediate
F2 E0	F2 E0 means the Cancel or Off key on the oven control keypad is registering as continuously pressed (shorted). The board detected a stuck input on the cancel/off circuit and raised this fault to prevent unintended cycle cancellations. mediumintermediate	medium	intermediate
F2 E1	F2 E1 indicates the Off key specifically (as distinct from the Cancel key addressed by F2 E0) is registering as continuously pressed on the oven keypad. The board detects a persistent input on the off-key circuit, which prevents normal mode transitions. mediumintermediate	medium	intermediate
F2 E6	F2E6 on a Whirlpool oven specifically identifies the Cancel key circuit as shorted on the keypad membrane. mediumintermediate	medium	intermediate
F5 E1	F5 E1 means the door latch system failed to complete its locking sequence when the self-clean cycle was initiated. The board commanded the latch motor to lock, but the latch position switch did not confirm the locked state within the expected timeframe. mediumintermediate	medium	intermediate
F8 E0	F8 E0 means the control board has detected a stuck key on the touchpad keypad overlay. One or more membrane switch contacts are continuously closed - as if a button is being held down indefinitely - which prevents normal input processing. mediumintermediate	medium	intermediate
NOT-HEATING	A Whirlpool oven not heating up has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
SMOKING	Causes and Fixes mediumintermediate	medium	intermediate
SMOKING	New Oven Break-In, Grease, and Element Failure Causes mediumintermediate	medium	intermediate
UNEVEN-HEAT	Convection Fan and Gasket Fixes mediumintermediate	medium	intermediate
WONT-START	A Whirlpool oven won't turn on has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
E1	A standalone E1 code on a Whirlpool oven (without an F-prefix on certain older or simplified models) indicates a sensor wiring short to ground or a thermistor reading outside the expected operating range. It is functionally related to the F3 family of temperature sensor faults. highintermediate	high	intermediate
E2 F3	E2 F3 is an alternate display format of the F3 E2 code on some Whirlpool models - the control board displays the E sub-code before the F code. It indicates the secondary temperature sensor circuit has a wiring short or the thermistor is reading outside its acceptable range. highintermediate	high	intermediate
F1	The F1 code indicates a control board memory failure - specifically the EEPROM (non-volatile memory chip) on the control board has either failed to read correctly or written corrupted data. The board cannot retrieve reliable operating parameters and shuts down as a safety measure. highintermediate	high	intermediate
F1 E0	F1 E0 is the specific two-part code for an EEPROM (electrically erasable programmable read-only memory) failure on the control board. The E0 sub-code identifies this specifically as a memory checksum failure, where the board's stored calibration and operating data has become corrupted or unreadable. highintermediate	high	intermediate
F2	F2 on a Whirlpool oven is a genuine runaway-heat safety shutoff - the oven temperature exceeded a safe threshold (typically 590 degrees F in bake mode or 990 degrees F in broil mode) and the board shut the oven down to prevent damage or fire. This is different from many other brands where F2 is a sensor short. highintermediate	high	intermediate
F3	F3 on older Whirlpool oven models (single-digit code display) indicates the oven temperature sensor has either opened (broken circuit) or shorted. This is functionally identical to F3 E0 on newer models with alphanumeric displays - the oven cannot read temperature and shuts down. highbeginner	high	beginner
F3 E0	F3 E0 means the main oven cavity RTD temperature sensor has either gone open circuit (resistance reads OL - wire broken) or short circuit (resistance near 0 ohms). The control board cannot determine oven temperature and shuts down as a safety measure. highbeginner	high	beginner
F3 E2	F3 E2 specifically indicates the temperature sensor for the middle oven element or, on double oven models, the secondary oven cavity sensor has failed. The E2 sub-code distinguishes this from the main cavity sensor fault (F3 E0) by pointing to the second sensor circuit. highintermediate	high	intermediate
F6 E1	The F6 E1 code means the oven's RTD temperature sensor is reading a value outside the acceptable range when the control board performs its startup self-check. The sensor is either reading too high, too low, or is producing an erratic signal that the board cannot interpret as a valid temperature. highintermediate	high	intermediate
F6 E4	F6E4 on a Whirlpool oven indicates a ground fault on the heating element circuit. The control board detected current leaking to ground from the bake or broil element. highintermediate	high	intermediate
F9	F9 on older Whirlpool oven models with single-digit code displays indicates the door latch system has faulted - either the latch will not engage for self-clean, will not release after self-clean, or the latch position switch is not confirming the expected latch state. highintermediate	high	intermediate
F9 E0	F9 E0 means the self-clean door latch will not retract to the unlocked position after a self-clean cycle completes. The oven is locked and the door cannot be opened. The latch motor attempted to release but the board did not confirm the latch reached the open position. highintermediate	high	intermediate
HUB	Whirlpool ovens display F (function) and E (error) codes on the digital display when the control board detects a fault in a specific circuit or sensor. Understanding the two-part code structure lets you identify the exact failed component before ordering parts. highintermediate	high	intermediate

Refrigerator14 codes

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Code	Issue	Severity	Difficulty
FREEZING	A Whirlpool refrigerator freezing food has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
ICE-MAKER	Causes and Fixes mediumintermediate	medium	intermediate
ICE-MAKER	A Whirlpool refrigerator ice maker not working has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
LEAKING	Causes and Fixes mediumintermediate	medium	intermediate
LEAKING	A Whirlpool refrigerator leaking water has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOISE	A Whirlpool refrigerator making noise has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-COOLING	A Whirlpool refrigerator not cooling has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
WATER-DISPENSER	Causes and Fixes mediumintermediate	medium	intermediate
E5	E5 on a Whirlpool refrigerator means a temperature sensor in the freezer or fresh food compartment is reading outside the expected range. The control board cannot rely on the sensor data to regulate cooling. highintermediate	high	intermediate
HUB	Whirlpool WRF (French door) and WRS (side-by-side) series refrigerators display alphanumeric error codes when sensors, fans, or control circuits detect a fault condition. Understanding these codes helps identify which component to inspect or replace. lowbeginner	low	beginner
PO	PO on a Whirlpool refrigerator stands for Power Outage. The refrigerator detected an interruption in electrical power and is alerting you to check whether food temperatures were compromised during the outage. lowbeginner	low	beginner
REFRIGERATOR-DIAG	Whirlpool French door and side-by-side refrigerators include a built-in diagnostic mode that stores error codes related to temperature sensors, fan motors, defrost systems, and communication faults. Entering this mode lets you read the codes without any special tools. lowbeginner	low	beginner
REFRIGERATOR-DIAG-CODES	After entering diagnostic mode, Whirlpool refrigerators display alphanumeric codes that identify which component or circuit triggered a fault. Each code maps to a specific sensor, fan, or control board function. lowbeginner	low	beginner

Washer52 codes

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Code	Issue	Severity	Difficulty
CABRIO-HUB	F7E1, F5E2, F51, LOC Complete Guide mediumbeginner	medium	beginner
DOOR-LOCKED	Front Load and Top Load Fixes mediumintermediate	medium	intermediate
DUET-HUB	F21, F20, F9E1, E1F9 Complete Guide mediumbeginner	medium	beginner
E1	E1 on a Whirlpool washer is a sub-code that appears in combination with an F-code prefix. The E1 means 'sub-fault 1' within a fault category. However, some Whirlpool displays show only E1 when the F-code has scrolled off screen. The most common E1 combinations are F3 E1 (temperature sensor), F7 E1 (motor), F8 E1 (water), and F5 E1 (door lock wiring). mediumbeginner	medium	beginner
E2	E2 on a Whirlpool washer is a sub-code that appears with various F-code prefixes. Like E1, it is the second part of a two-part code. The most common E2 combinations are F5 E2 (door lock fault), F3 E2 (temperature sensor shorted), F0 E2 (load too large/overload), and F2 E2 (UI board communication). mediumbeginner	medium	beginner
F24	F24 on older Whirlpool Duet washers (pre-2010 models) indicates a water temperature sensor circuit fault. This is the legacy code equivalent of F3 E1/F3 E2 on newer models. The NTC thermistor is either open circuit, short circuit, or reading out of range. mediumintermediate	medium	intermediate
F3 E2	F3 E2 on a Whirlpool washer means the water temperature sensor (NTC thermistor) has a short circuit - its resistance is too low, indicating the sensor leads are touching or the thermistor element has failed short. mediumintermediate	medium	intermediate
F5	F5 on a Whirlpool washer is the door/lid lock system fault category. F5 is followed by E2 (lock did not engage), E3 (lock engaged but switch did not confirm), or E4 (unlock failed). The lock mechanism differs between front-load Duet (bi-metal door lock) and top-load Cabrio (wax motor lid lock). mediumbeginner	medium	beginner
F8	F8 on a Whirlpool washer is the water system fault category. F8 E1 means water supply timeout (no water or slow fill). F8 E2 is a dispenser fault. F8 E3 is an overflow condition. F8 E6 is a water flow meter fault. mediumbeginner	medium	beginner
F9	F9 on a Whirlpool washer is the drain system fault category. Like F5 (door lock), F9 is always followed by a sub-code: F9 E1 means the drain cycle exceeded the maximum time (long drain), F9 E2 means a drain issue was detected during the spin cycle. mediumbeginner	medium	beginner
FRONT-LOAD-HUB	F21, F8E1, F9E1, LOC Guide mediumbeginner	medium	beginner
LEAKING	A Whirlpool washer leaking water from the bottom, front, or underneath has a failed seal, hose, pump, or door boot depending on the location of the leak and whether it is a top-load or front-load model. mediumintermediate	medium	intermediate
NOISE	Whirlpool Washer Making Loud Noise: Coupler, Bearing, and Clutch Sounds mediumintermediate	medium	intermediate
NOISE	A Whirlpool washer making loud noise has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-DRAINING	A Whirlpool washer not draining has standing water remaining in the drum after the cycle completes. This can be caused by a clogged drain pump filter, kinked drain hose, failed drain pump, or a control board issue preventing the pump from running. mediumbeginner	medium	beginner
NOT-FILLING	Whirlpool Washer Not Filling With Water: Valve, Screen, and Pressure Switch mediumintermediate	medium	intermediate
NOT-FILLING	A Whirlpool washer not filling with water has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	A Whirlpool washer that fills and agitates but will not spin has a mechanical or electrical fault preventing the spin cycle from engaging. This affects top-load (Cabrio, direct-drive, belt-drive) and front-load (Duet, WFW series) models differently. mediumintermediate	medium	intermediate
SHAKING	A Whirlpool washer shaking violently during the spin cycle has an imbalanced load, worn suspension components, or a leveling problem causing excessive vibration. mediumbeginner	medium	beginner
SMELLS	Whirlpool Washer Smells Musty: Clean Washer Cycle, Door Boot, and Affresh mediumintermediate	medium	intermediate
SMELLS	A Whirlpool washer smells bad or musty has specific causes related to Whirlpool's design and component choices. mediumintermediate	medium	intermediate
STUCK-SENSING	Why It Won't Fill or Start Washing mediumintermediate	medium	intermediate
TOP-LOAD-HUB	F7E1, F5E3, LID LOCK, 5D Guide mediumbeginner	medium	beginner
WONT-START	A Whirlpool washer that has power but won't start a cycle has a lid lock, control board, or wiring issue preventing the wash cycle from initiating. This is different from 'won't turn on' (no power at all). mediumintermediate	medium	intermediate
F27	The overflow float switch was triggered, indicating water in the tub reached a dangerous level. The machine immediately stopped the cycle to prevent flooding. A stuck-open inlet valve or a failed pressure switch are the two most likely causes. criticalintermediate	critical	intermediate
F8 E3	F8 E3 on a Whirlpool washer is an overflow alert - the washer detected water above the maximum safe level. This is one of the most urgent Whirlpool error codes because it indicates a potential flooding risk. criticalintermediate	critical	intermediate
F1	F1 on a Whirlpool washer indicates the central control unit (CCU) has detected an internal memory or EEPROM error. The control board cannot read its stored program correctly, which prevents it from operating any cycle. highintermediate	high	intermediate
F28	F28 on older Whirlpool Duet washers indicates a serial communication failure between the central control unit (CCU) and the motor control unit (MCU). The two boards communicate via a serial data line, and F28 means this communication has broken down. highintermediate	high	intermediate
F6 E3	Communication between the main control board and the motor control unit (MCU) was lost or returned invalid data. Neither board can confirm the motor drive circuit is operating correctly. highadvanced	high	advanced
F7 E1	The motor control detected a motor stall, current spike, or rotor position error during agitation or spin. May indicate an overloaded tub, a seized basket bearing, a failed drive motor, or a failed motor control unit (MCU). highadvanced	high	advanced
F0 E7	The washer opened the inlet valve and waited for the water level sensor to register a rise, but no change was detected. Either no water entered, or the pressure switch circuit failed to sense it. moderatebeginner	moderate	beginner
F20	No water detected during fill. Older code for the same condition as LF. The washer did not sense any change in water level after the inlet valve was commanded to open. moderatebeginner	moderate	beginner
F21	The washer took more than 8 minutes to drain the tub. Most commonly caused by a clogged pump filter, kinked drain hose, or failed drain pump. moderatebeginner	moderate	beginner
F22	The control board expected the lid switch to be closed (lid down) during spin but received an open signal. The machine will not spin without a confirmed lid-closed reading. moderatebeginner	moderate	beginner
F3 E1	The water temperature NTC thermistor is reading outside its valid range. The control board cannot verify the water temperature and has paused the cycle. moderateintermediate	moderate	intermediate
F4 E1	The heater NTC thermistor returned an out-of-range reading on front-load models with internal heating elements. The control board cannot confirm the water temperature and has suspended the heating cycle. moderateintermediate	moderate	intermediate
F5 E2	Door or lid lock fault. On front-load models the door latch or door boot may be preventing full closure. On top-load models the lid hinge or lock tab may be damaged. moderatebeginner	moderate	beginner
F5 E3	The lid lock assembly failed to engage within 5 seconds of cycle start, or the control detected an unexpected lock state. The washer will not run without a confirmed lid lock signal. moderatebeginner	moderate	beginner
F8 E1	The water level in the tub is below the minimum required level for the selected cycle. The machine filled but did not reach the required level within the expected time, or the level sensor reported a level below minimum. moderatebeginner	moderate	beginner
F8 E6	The washer detected hot water entering through the cold valve port, or cold water entering through the hot valve port. The supply hoses are connected backwards at the machine or at the wall valves. moderatebeginner	moderate	beginner
F9 E1	The washer failed to drain within the allotted time. Used on front-load (WFW) and newer top-load models. Identical in cause to F21 on older top-load models. moderatebeginner	moderate	beginner
LD	The drain cycle exceeded the allotted time. LD is the older designation for the same fault as F21. Used on earlier Whirlpool top-load models before the current F-code naming convention. moderatebeginner	moderate	beginner
LF	The washer did not reach the required water level within 13 minutes. Usually caused by closed supply valves, low water pressure, or clogged inlet valve screens. moderatebeginner	moderate	beginner
LO FL	The water fill flow rate fell below the minimum threshold during fill. The machine sensed water entering but not fast enough. Common causes include low water pressure, partially open supply valves, or clogged inlet valve screens. moderatebeginner	moderate	beginner
TROUBLESHOOT	Common issues and troubleshooting for the Whirlpool Cabrio top-load washer line moderateintermediate	moderate	intermediate
5D	The washer detected excessive foam in the tub. This is a safety pause, not a mechanical failure. The machine suspends the cycle and runs extra rinse passes to clear the suds. lowbeginner	low	beginner
CLEAR-CODES	Clearing error codes on a Whirlpool washer removes stored fault codes from the control board memory. However, clearing codes does not fix the underlying fault - if the condition persists, the code returns immediately after clearing. lowbeginner	low	beginner
F4 E4	The tub detected an uneven load distribution during spin. The machine paused the spin cycle to protect the suspension system and prevent the tub from striking the cabinet. lowbeginner	low	beginner
HUB	Hub page covering all Whirlpool washer error codes including drain faults, door lock errors, fill faults, motor faults, suds detection, and overflow warnings. lowbeginner	low	beginner
LOC	The control lock (child lock) feature is active. All button presses are ignored while LOC is displayed. This is a user-activated feature, not a fault. lowbeginner	low	beginner
RESET	A reset clears active error codes and restores the control board to its default state. It does not fix the underlying fault that caused an error code, but it allows you to attempt a fresh cycle and confirm whether the fault is persistent or was a one-time glitch. lowbeginner	low	beginner
RL	The RL code appears during calibration or diagnostic mode when the machine detects that a load is present in the tub. Calibration requires an empty tub to accurately set suspension and balance parameters. lowbeginner	low	beginner

Samsung

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Dishwasher36 codes

View all 36 codes →

Code	Issue	Severity	Difficulty
BEEPING	Samsung dishwashers beep to communicate cycle status, error conditions, and door alerts. Unlike older dishwashers with single-tone buzzers, Samsung models use a specific number of beeps combined with a display code to signal different fault conditions. The beep count and pattern on Samsung DW80R and DW80K series is part of the fault communication system. mediumbeginner	medium	beginner
LEAKING	A Samsung dishwasher leaking has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-CLEANING	A Samsung dishwasher not cleaning dishes has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-DRAINING	A Samsung dishwasher not draining has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-DRYING	A Samsung dishwasher not drying dishes has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-FILLING	4C Error and Inlet Valve Fix mediumintermediate	medium	intermediate
SMELLS	A Samsung dishwasher smells bad has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
SOAP-DISPENSER	The detergent dispenser on Samsung dishwashers uses a bi-metal strip or wax motor actuator to spring open the dispenser door at a specific point in the wash cycle. When the dispenser fails to open, dishes come out dirty and coated in undissolved detergent residue. Samsung dispensers on the DW80R and DW80K series use a solenoid-actuated spring latch - unlike some brands that use heat alone to trip the dispenser. mediumbeginner	medium	beginner
TURNS-ON-ITSELF	A Samsung dishwasher that powers on or starts a cycle without user input has a control board relay stuck in the closed position, a touchpad membrane sending phantom key presses, or a Delay Start cycle that was inadvertently activated. On Samsung DW80R models with smart home connectivity, a scheduled cycle or app-triggered command from the SmartThings app is also a possible cause. mediumbeginner	medium	beginner
LC	Water or moisture detected in the base pan beneath the dishwasher tub. The leak sensor DD81-01399A has been activated. criticalbeginner	critical	beginner
OC	The water level inside the tub has risen above the safe maximum. The float switch or overflow sensor triggered a shutdown. criticalintermediate	critical	intermediate
OE	Water level reached the overflow threshold. The overflow float or level sensor triggered an emergency shutdown. criticalintermediate	critical	intermediate
3C	The control board lost communication with the wash motor controller. The motor did not respond to commands from the main board. highadvanced	high	advanced
LE	The wash motor has locked up, stalled, or lost communication. The control board detected the motor did not reach operating speed. highadvanced	high	advanced
NO-WATER	When a Samsung dishwasher starts a cycle but no water enters the tub, the machine is receiving power and the control board is operating, but the water inlet valve is not opening. Samsung dishwashers display a 4C or 4E error code for water supply failures - 4C is the current code on DW80R series, while 4E was used on older Samsung models. Both codes mean the same thing: the flow sensor or tub level sensor did not register a fill within the expected time. highintermediate	high	intermediate
NOT-WASHING	A Samsung dishwasher that fills with water but does not wash has a circulation pump failure, a blocked WaterWall reflector arm (on Samsung WaterWall models), or a control board that is not activating the wash pump. Samsung DW80R series models use the WaterWall technology where a linear reflector moves back and forth instead of spinning spray arms - this reflector can jam on tall items or the drive mechanism can fail. highintermediate	high	intermediate
STOPS-1MIN	A Samsung dishwasher that stops within the first 1-2 minutes of starting a cycle has failed a startup safety check. Samsung dishwashers run a series of pre-cycle checks immediately after start: door latch verification, anti-flood sensor check, and initial water fill confirmation. If any of these checks fail within the first 90 seconds, the control board stops the cycle immediately to prevent unsafe operation. highintermediate	high	intermediate
4C	The dishwasher started a fill cycle but did not detect sufficient water flow within the expected time window. moderatebeginner	moderate	beginner
5C	Drain cycle failed. The dishwasher could not clear water from the tub within the timeout period. 5C is the older display variant of the SC drain fault. moderatebeginner	moderate	beginner
9E	The water level sensor circuit reported an out-of-range value. The control board cannot confirm correct water level during the fill cycle. moderateintermediate	moderate	intermediate
DRAIN-ISSUES	Water remains in the tub after the cycle completes, or the dishwasher drains slowly. May or may not be accompanied by a SC, 5C, or SE error code. moderatebeginner	moderate	beginner
ERROR-CODES	Complete reference table of every Samsung dishwasher error code with brief meanings and repair priorities. moderatebeginner	moderate	beginner
HUB	Hub page covering all Samsung dishwasher error codes with causes, fixes, and diagnostic steps. moderatebeginner	moderate	beginner
LIGHTS-FLASH	Indicator lights on the control panel are flashing. The pattern and which lights flash indicate whether this is an error state, a pause state, or a control board reset condition. moderatebeginner	moderate	beginner
PC	The pressure switch or water level pressure sensor circuit is reporting an abnormal reading. The control board cannot determine water level accurately. moderateintermediate	moderate	intermediate
SC	The dishwasher failed to drain within the expected time. The drain pump did not clear water from the tub. moderatebeginner	moderate	beginner
SE	Drain cycle failed. SE is the older firmware equivalent of SC and 5C - all three codes indicate the same drain pump or blockage fault. moderatebeginner	moderate	beginner
TROUBLESHOOT	Comprehensive troubleshooting guide covering the most common Samsung dishwasher problems, symptoms, and repair paths. moderatebeginner	moderate	beginner
WONT-START	The dishwasher powers on but will not begin a wash cycle when Start is pressed. moderatebeginner	moderate	beginner
WONT-TURN-OFF	The dishwasher continues running, filling with water, or will not respond to the Power button to shut down. moderatebeginner	moderate	beginner
WONT-TURN-ON	The dishwasher does not respond when the Power button is pressed. No display, no lights, no sounds. moderatebeginner	moderate	beginner
DIAG-MODE	Samsung dishwasher diagnostic mode is a built-in service test that cycles through each major component - water fill, wash pump, drain pump, heater, and dispenser - in sequence to isolate which system is causing a fault. On Samsung DW80R series and most post-2016 Samsung dishwashers, diagnostic mode is accessed by holding the Start button for 5 seconds with the door closed. lowbeginner	low	beginner
HOW-TO-START	Step-by-step guide to starting a Samsung dishwasher correctly, including delay start, child lock check, and troubleshooting when the machine does not begin a cycle. lowbeginner	low	beginner
RESET	Soft reset, hard reset, and control board reset procedures for Samsung dishwashers. lowbeginner	low	beginner
UNLOCK	How to deactivate Samsung dishwasher child lock (CL), which disables all buttons including Power and Start. lowbeginner	low	beginner

Dryer27 codes

View all 27 codes →

Code	Issue	Severity	Difficulty
HUB-CODES	Samsung Dryer Error Codes: tE, dE, HE, bE, Complete Code Guide mediumintermediate	medium	intermediate
NOISE	A Samsung dryer making noise has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	A Samsung dryer not spinning or tumbling has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-TURNING-OFF	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
SMELLS	A Samsung dryer smells like burning has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
SMELLS-BURNING	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	A Samsung dryer takes too long to dry has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
WONT-START	A Samsung dryer won't start has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
TC	The thermal cutout activated because drum temperature reached an extreme level. This is a critical safety shutdown. The dryer will not restart until the fault is diagnosed and cleared. criticalintermediate	critical	intermediate
3C	The drum motor failed to start or stalled during operation. The control board detected that the motor is not running at the expected speed or drew excessive current. highadvanced	high	advanced
3C-FIX	Deep-dive troubleshooting for Samsung dryer 3C motor fault. Covers drum roller friction, belt tension, drum glide condition, and motor electrical testing before condemning the motor assembly. highadvanced	high	advanced
9C1	The motor control or main control board detected an abnormal power supply frequency. Samsung dryers require a stable 60 Hz supply. Any significant deviation triggers 9C1. highadvanced	high	advanced
FE	The control board detected a power supply frequency deviation from the required 60 Hz standard. FE is functionally identical to the 9C1 code and appears on certain Samsung dryer models. highadvanced	high	advanced
H01	The control board detected an open circuit in the heating element circuit. The element is broken, a connecting wire has burned through, or a blown thermal fuse in the element assembly has created an open. highintermediate	high	intermediate
HC	The dryer detected air temperature above the safe operating threshold. The thermal cutoff tripped or the cycling thermostat failed, shutting the heating system down to prevent a fire. highintermediate	high	intermediate
HE	The dryer detected a heating system fault. HE appears on certain Samsung dryer models and firmware versions where other models display HC for the same condition. highintermediate	high	intermediate
NOT-HEATING	The dryer drum rotates normally but produces no heat. This is a symptom, not a specific error code. It indicates a failure in the heating circuit: electric element, thermal fuse, thermostat, or gas components. highintermediate	high	intermediate
DC	The door sensor detected that the door was open or not fully latched when the cycle started or during operation. moderatebeginner	moderate	beginner
DC-FIX	Deep-dive troubleshooting for Samsung dryer DC and DE door fault codes. Covers all door components, adjustment procedures, door latch wear patterns by model age, and when replacement is necessary. moderatebeginner	moderate	beginner
DE	The control board detected that the door is open or the door switch failed to confirm the door is latched. DE is displayed on certain Samsung dryer models where other models display DC for the same condition. moderatebeginner	moderate	beginner
TE	The exhaust thermistor reading is outside the expected operating range. The control board cannot determine drum temperature, so it shuts down heating to prevent damage. moderateintermediate	moderate	intermediate
CL	CL is a maintenance reminder displayed on older Samsung dryer models indicating it is time to clean the lint filter. It is not a fault code and the dryer continues to operate normally. lowbeginner	low	beginner
CL9	CL9 is a maintenance reminder to clean the lint filter. It activates after a set number of drying cycles and is not a fault code. The dryer continues operating normally. lowbeginner	low	beginner
CL9-FIX	The cooling indicator light on a Samsung dryer is normal during the final phase of a drying cycle. It indicates the heating element is off and cool air is tumbling the clothes to reduce wrinkles and prevent heat damage at cycle end. lowbeginner	low	beginner
HUB	Hub page covering all Samsung dryer error codes including DC, HC, HE, CL9, DE, 3C, 9C1, TE, FE, CL, TC, H01, and RESET procedures. lowbeginner	low	beginner
RESET	Samsung dryer reset procedures clear fault codes and restart the control board. A reset is the first step after any error code appears and after completing a repair. lowbeginner	low	beginner

Microwave3 codes

View all 3 codes →

Code	Issue	Severity	Difficulty
HUB	Samsung microwave ovens display error codes including SE (stuck key), C-10 (communication fault on smart models), 5E (button stuck variant), and descriptive errors. Samsung microwaves use fewer codes than washers or dishwashers. mediumbeginner	medium	beginner
SE	SE on a Samsung microwave means a key on the touchpad is stuck or shorted - the control board detects a key press that should not be happening. Samsung uses the generic SE code across multiple appliances (washers, microwaves) but on microwaves it specifically relates to the touchpad membrane. mediumintermediate	medium	intermediate
C-10	C-10 on a Samsung microwave indicates a communication fault between the main control board and the smart/Wi-Fi module. This error only appears on Samsung Smart microwaves with SmartThings connectivity. lowbeginner	low	beginner

Oven10 codes

View all 10 codes →

Code	Issue	Severity	Difficulty
C-24	Samsung oven C-24 indicates a fault in the lower oven temperature sensor circuit on dual-oven models equipped with the FlexDuo divider system. C-24 is specific to Samsung FlexDuo ranges (NE59M6850SS, NE63T8911SS) - it appears only when the FlexDuo divider panel is installed, creating a separate lower oven cavity with its own dedicated NTC sensor. mediumintermediate	medium	intermediate
C-A2	Samsung oven C-A2 indicates the convection fan motor has failed or is not running at the required speed. On Samsung convection ranges, the fan circulates hot air inside the oven cavity for even baking. When the control board detects no fan rotation or insufficient fan speed, it displays C-A2 and may limit oven operation to prevent element overheating. mediumbeginner	medium	beginner
DOOR-STUCK	A Samsung oven door won't open after self-clean has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-HEATING	A Samsung oven not heating up has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
SE	SE on a Samsung oven means a touchpad key is stuck or shorted, identical in concept to Samsung washer and microwave SE codes. The control board detects a continuous key press signal. mediumintermediate	medium	intermediate
SMOKING	Causes and Fixes mediumintermediate	medium	intermediate
WONT-START	A Samsung oven won't turn on has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
C-21	Samsung oven C-21 means the NTC temperature probe resistance is outside the acceptable range - either reading too high (approaching open circuit) or too low (approaching short). The control board cannot establish a valid temperature reading and shuts the oven down as a safety measure. highbeginner	high	beginner
C-F2	Samsung oven C-F2 means the oven temperature exceeded the 610 degrees F safety threshold, triggering an automatic shutdown. Unlike GE F2 which almost always points to a stuck relay on the control board, Samsung C-F2 has an additional possible cause specific to Samsung's design: a thermal cutoff fuse placed in series with the bake element circuit that blows at high temperatures and generates the same C-F2 code even when the board is working correctly. highintermediate	high	intermediate
HUB	Samsung ovens display C-prefix error codes (C-21, C-F2, C-24, C-A2) that indicate sensor, temperature, and motor faults. All Samsung oven C-codes use an NTC thermistor for temperature sensing - a fundamentally different technology from the RTD probes used by GE and Frigidaire - making sensor identification the most critical step before ordering parts. highintermediate	high	intermediate

Refrigerator19 codes

View all 19 codes →

Code	Issue	Severity	Difficulty
33E	Samsung refrigerator 33E indicates the ice room fan motor inside the ice maker compartment has failed or is not running. On Samsung French door models, a small dedicated fan circulates cold air through the ice maker compartment to keep ice from clumping. When this fan stops, the ice maker compartment temperature rises, ice sticks together, and eventually the compartment freezes completely solid, blocking ice dispensing. mediumintermediate	medium	intermediate
40C	Samsung refrigerator 40C indicates a fault in the ice maker room ambient temperature sensor - the sensor that measures the air temperature inside the ice maker compartment rather than the ice tray itself. This is distinct from 40E (which monitors the ice maker cycle sensor) and is specific to Samsung French door and 4-door Flex models that have a dedicated ice maker room with its own climate monitoring. mediumintermediate	medium	intermediate
40E	Samsung refrigerator 40E indicates a fault in the ice maker temperature sensor circuit. On French door and 4-door Flex models with automatic ice makers, the ice maker uses a dedicated temperature sensor to monitor the ice making tray and ice room temperatures. A failed or out-of-range sensor triggers 40E and interrupts ice maker operation. mediumintermediate	medium	intermediate
41	Error code 41 on a Samsung refrigerator indicates the ice room fan motor is not operating. This fan circulates cold air through the ice maker compartment. mediumintermediate	medium	intermediate
FREEZING	A Samsung refrigerator freezing food has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
ICE-BUILDUP	Defrost Heater and Drain Fix mediumintermediate	medium	intermediate
ICE-MAKER	A Samsung refrigerator ice maker not working has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
ICE-MAKER	Causes and Fixes mediumintermediate	medium	intermediate
LEAKING	A Samsung refrigerator leaking water has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
LEAKING	Causes and Fixes mediumintermediate	medium	intermediate
NOISE	A Samsung refrigerator making noise has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-COOLING	A Samsung refrigerator not cooling has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
WATER-DISPENSER	Causes and Fixes mediumintermediate	medium	intermediate
22C	Samsung refrigerator 22C means the freezer evaporator temperature sensor has failed or is reading outside the expected range. The freezer evaporator sensor monitors the temperature of the evaporator coil assembly to manage the defrost cycle and compressor operation. A failed sensor causes the control board to lose freezer temperature data, potentially disrupting cooling cycles. highintermediate	high	intermediate
25E	Samsung refrigerator 25E indicates the fridge compartment defrost sensor has failed or is reading outside the expected range. This is the refrigerator-side equivalent of 39C (which is the freezer defrost sensor) - 25E specifically monitors the defrost heater in the fresh food (fridge) section of French door and side-by-side models that have separate defrost circuits for each compartment. highintermediate	high	intermediate
2E	Samsung refrigerator 2E means the freezer temperature sensor is shorted - its resistance has dropped to near zero ohms, which the control board interprets as an impossibly high temperature reading in the freezer. 2E is the shorted-sensor counterpart to 22C (open/drifted sensor) - both are freezer sensor faults but 2E specifically indicates a hard short rather than drift or open circuit. highintermediate	high	intermediate
39C	Samsung refrigerator 39C means the freezer defrost sensor has tripped or failed, or the freezer defrost heater has failed causing ice to build up on the evaporator coils. The 39C code is the most frequently displayed Samsung fridge error because defrost heater failure is the single most common hardware fault in Samsung French door and side-by-side refrigerators. highintermediate	high	intermediate
HUB	Samsung refrigerators display numeric and alphanumeric error codes on the door panel to indicate sensor, defrost, ice maker, and fan failures. The most common Samsung fridge codes - 39C, 33E, 22C, 25E, 2E, 40E, and 40C - all point to specific sensor or motor failures in the freezer, fridge, or ice maker circuits. highintermediate	high	intermediate

Washer40 codes

View all 40 codes →

Code	Issue	Severity	Difficulty
DOOR-WONT-OPEN	Locked After Cycle, Mid-Cycle, or Power Outage mediumintermediate	medium	intermediate
FRONT-LOAD-HUB	4C, 5C, DC, UB, LE Complete Guide mediumbeginner	medium	beginner
LEAKING	A Samsung washer leaking from the bottom, front, or underneath has a failed seal, hose connection, pump gasket, or door boot depending on the model type and leak location. mediumintermediate	medium	intermediate
NOISE	Samsung Washer Making Loud Noise During Spin: VRT Bearing and Shock Fixes mediumintermediate	medium	intermediate
NOISE	A Samsung washer making loud noise has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-DRAINING	A Samsung washer not draining has standing water in the drum. Samsung front-loaders have an accessible debris filter behind a small door on the lower front panel. Top-loaders require more effort to access the pump. mediumbeginner	medium	beginner
NOT-FILLING	A Samsung washer not filling with water has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
NOT-FILLING	Samsung Washer Not Filling With Water: 4C Error, Valve, and AquaJet Fix mediumintermediate	medium	intermediate
NOT-SPINNING	A Samsung washer that fills and washes but will not spin has a suspension, lid/door lock, control board, or mechanical fault. Samsung's VRT (Vibration Reduction Technology) system can also prevent spinning when it detects excessive imbalance. mediumintermediate	medium	intermediate
SMELLS	A Samsung washer smells bad or musty has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
SMELLS	Samsung Washer Smells Bad: Self Clean, Boot Seal, and Mold Prevention mediumintermediate	medium	intermediate
VIBRATING	A Samsung washer vibrating excessively during spin has an imbalanced load, worn shock absorbers/suspension, leveling issue, or shipping bolt problem. Samsung's VRT system is designed to reduce vibration but cannot compensate for worn components. mediumbeginner	medium	beginner
VRT-HUB	UB, DC, 4C, 5C, LE Guide mediumbeginner	medium	beginner
WONT-START	A Samsung washer won't start has specific causes related to Samsung's design and component choices. mediumintermediate	medium	intermediate
OE	The water level sensor detected that the tub has filled beyond the maximum safe level, indicating a stuck-open inlet valve or a failed water level pressure switch. criticalintermediate	critical	intermediate
3C2	The brushless motor stalled and stopped rotating during agitation or spin, with the motor drive detecting a locked or stopped rotor condition. highadvanced	high	advanced
3E	The motor control circuit detected a rotor lock condition or current overload, meaning the brushless DC motor could not rotate or was drawing excessive current. highadvanced	high	advanced
8E	The motor drive circuit detected an abnormal frequency reading from the vibration or motor speed sensor, preventing normal spin operation. highadvanced	high	advanced
9C2	The main control board detected that the incoming supply voltage is below the minimum acceptable level, causing the motor drive circuit to shut down. highadvanced	high	advanced
9C8	The inverter motor detected an abnormal power supply frequency. The machine expects 60 Hz AC power but the measured frequency is outside the acceptable range. highadvanced	high	advanced
AC6	The main control board lost communication with the inverter (motor drive) board, causing the wash cycle to stop. highadvanced	high	advanced
4C	The machine started a fill cycle but the water level sensor detected no flow after 60 seconds, indicating a water supply problem. moderatebeginner	moderate	beginner
4E	The top-load washer started a fill cycle but the water level sensor detected no flow after the allotted fill time, indicating a water supply problem. moderatebeginner	moderate	beginner
5C	The washer's drain cycle ran but the water level sensor did not detect sufficient pressure drop, indicating a blockage or pump failure. moderatebeginner	moderate	beginner
8C	The MEMS (microelectromechanical) vibration sensor circuit failed or reported an out-of-range reading, preventing the spin cycle from operating at full speed. moderateadvanced	moderate	advanced
DC	The control board detected that the door is not properly closed and latched when the cycle was started or the door opened unexpectedly mid-cycle. moderatebeginner	moderate	beginner
DE	The control board detected that the door or lid switch is open when the cycle expects it to be closed, preventing the wash cycle from proceeding. moderatebeginner	moderate	beginner
E3	The drum could not accelerate to the target spin speed, indicating a jammed drum, worn tub bearing, or motor control fault. moderateintermediate	moderate	intermediate
LE	The water level pressure switch reading is incorrect, causing the machine to lose track of the actual water level in the tub. moderateintermediate	moderate	intermediate
ND	The washer ran the drain cycle but the water level sensor detected no drop in water level, indicating the drain pump could not remove water from the tub. moderatebeginner	moderate	beginner
NF	The washer started a fill cycle but detected no water entering the drum within the allotted time, indicating a water supply problem. moderatebeginner	moderate	beginner
SC	The washer attempted a drain cycle but the water level sensor did not detect the expected drop in water level within the allotted time. moderatebeginner	moderate	beginner
SE	The washer could not drain within the expected time during the drain cycle, indicating a blockage, pump failure, or hose routing problem. moderatebeginner	moderate	beginner
TE	The NTC temperature sensor (thermistor) reading is outside the expected range, preventing the heating element from operating safely. moderateintermediate	moderate	intermediate
HUB	Hub page covering all Samsung washer error codes, their causes, and repair steps. lowbeginner	low	beginner
RESET	Guide covering all three reset methods for Samsung front-load and top-load washers to clear error codes and restore normal operation. lowbeginner	low	beginner
SUD	The washer detected excessive foam in the drum and paused the cycle to allow suds to dissipate before continuing. lowbeginner	low	beginner
UB	The front-load washer detected uneven load distribution during the spin cycle and paused or reduced spin speed to protect the drum and bearings. lowbeginner	low	beginner
UE	An alternate display of the unbalanced load error, indicating the washer detected uneven weight distribution during the spin cycle and paused to rebalance. lowbeginner	low	beginner
UR	The top-load washer detected an uneven load distribution during the spin cycle and paused to attempt automatic rebalancing. lowbeginner	low	beginner

Ge

All Ge guides →

Dehumidifier1 codes

View all 1 codes →

Code	Issue	Severity	Difficulty
E6	E6 on a GE dehumidifier indicates the humidity sensor has failed. The dehumidifier cannot accurately measure room humidity. mediumintermediate	medium	intermediate

Dishwasher37 codes

View all 37 codes →

Code	Issue	Severity	Difficulty
BUTTONS-NOT-WORKING	On GE dishwashers, unresponsive buttons almost always trace back to the touchpad membrane rather than the control board itself. The ribbon cable connecting the membrane panel to the board corrodes or delaminates, breaking the circuit path for individual keys or entire rows. Older GE Adora models are especially prone to this because the membrane was bonded with a single-sided adhesive that dries out over time. mediumintermediate	medium	intermediate
CAFE-TROUBLESHOOT	GE Cafe dishwashers are GE's premium tier with stainless interiors, bottle jets, and a digital display that shows error codes directly - unlike basic GE models that only blink LEDs. When a GE Cafe dishwasher malfunctions, the display will show a specific error code (such as PF, C2, or a numeric code) alongside an audible alert, giving you a more precise starting point than lower-tier GE units. mediumintermediate	medium	intermediate
LEAKING	A Ge dishwasher leaking has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-DRAINING	A Ge dishwasher not draining has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOT-DRYING	GE Dishwasher Not Drying Dishes: Heated Dry, Piranha, and Rinse Aid Guide mediumintermediate	medium	intermediate
SMELLS	A Ge dishwasher smells bad has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
1H	The high-limit thermostat tripped because water temperature inside the tub exceeded the safe maximum threshold highintermediate	high	intermediate
888	The main control board has detected an internal fault or suffered an unrecoverable error state highadvanced	high	advanced
CFE	The main control board lost communication with the user interface (UI) board highadvanced	high	advanced
FAULT-353	Fault code 353 is a specific internal control board diagnostic code on select GE dishwasher models indicating a board-level hardware fault highadvanced	high	advanced
FILLS-NO-WASH	The dishwasher successfully fills with water but the wash cycle does not begin - no spray arm rotation and no washing action highintermediate	high	intermediate
IH	The inlet heater circuit failed to reach or maintain the target temperature during the wash fill phase highintermediate	high	intermediate
KEEPS-OFF	The dishwasher repeatedly stops and loses power or exits cycle mode during operation highintermediate	high	intermediate
MONOGRAM-REPAIR	GE Monogram dishwashers are built on a fully custom platform - not shared with GE Adora or GE Profile - and use a hidden control panel integrated into the top of the door. When a GE Monogram dishwasher stops working, the fault often cannot be diagnosed with standard GE diagnostic sequences, as the Monogram line uses its own service mode accessed through the integrated top-panel controls rather than the Heated Dry button. highadvanced	high	advanced
NE	The control board detected a loss of power or an electrical circuit fault preventing normal operation highbeginner	high	beginner
WONT-TURN-ON	The dishwasher has no power, display is dark, no buttons respond, and no sounds are made when any button is pressed highbeginner	high	beginner
ERROR-CODES	Complete reference listing every known GE dishwasher error code with meaning, severity, and fix direction moderatebeginner	moderate	beginner
FED	The drain cycle completed its timed run but the water level sensor did not confirm the tub was empty moderatebeginner	moderate	beginner
FTD	The dishwasher detected that water did not drain from the tub within the expected drain cycle time moderatebeginner	moderate	beginner
H2O	The dishwasher did not detect sufficient water entering the tub within the expected fill time moderatebeginner	moderate	beginner
HUB	Hub page covering all GE dishwasher error codes including H2O, FTD, IH, FED, 1H, 888, CFE, PR5, and NE moderatebeginner	moderate	beginner
HUMS-NO-WATER	The dishwasher activates and hums as if trying to fill but no water enters the tub moderatebeginner	moderate	beginner
PR5	The pressure switch circuit detected an out-of-range reading or failed to send a valid signal to the control board moderateintermediate	moderate	intermediate
TROUBLESHOOT	Comprehensive troubleshooting guide for GE dishwasher problems in order of frequency moderatebeginner	moderate	beginner
WONT-START	The dishwasher has power and the display works but pressing Start does not begin a wash cycle moderatebeginner	moderate	beginner
ADORA	Overview of the GE Adora dishwasher product line including model numbers, distinguishing features, and most common repair issues lowbeginner	low	beginner
DIAG-MODE	How to enter GE dishwasher service diagnostic mode to retrieve stored fault codes and run component tests lowintermediate	low	intermediate
GREEN-LIGHT	A green indicator light on the GE dishwasher is on solid, flashing, or behaving unexpectedly lowbeginner	low	beginner
HOW-TO-START	Basic operation guide for starting a wash cycle on GE Adora, Profile, Cafe, and Monogram dishwashers lowbeginner	low	beginner
LOCK-CONTROLS	How to activate and deactivate the control lock (child lock) feature on GE dishwashers lowbeginner	low	beginner
NOT-CLEANING	The dishwasher completes a full cycle but dishes come out dirty, greasy, or with food residue lowbeginner	low	beginner
NOT-DRYING	Dishes come out wet after a completed cycle even with Heated Dry selected lowbeginner	low	beginner
ORANGE-LIGHT	An orange or amber indicator light on the GE dishwasher control panel is flashing or solid lowbeginner	low	beginner
QUIET-POWER	Guide to GE's Quiet Power technology noise rating tiers and how to diagnose a GE dishwasher that has suddenly become louder lowbeginner	low	beginner
RESET	Procedure to clear error codes, cancel a cycle, or restore the control board to its default state on GE dishwashers lowbeginner	low	beginner
TURN-ON-OFF	How to power on, start, pause, cancel, and power off a GE dishwasher correctly lowbeginner	low	beginner

Dryer11 codes

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Code	Issue	Severity	Difficulty
NOISE	A Ge dryer making noise has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOT-HEATING	A Ge dryer not heating has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	A Ge dryer not spinning or tumbling has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOT-TURNING-OFF	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
SMELLS	A Ge dryer smells like burning has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
SMELLS-BURNING	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	A Ge dryer takes too long to dry has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
WONT-START	A Ge dryer won't start has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
Error 353	Error 353 on a GE dryer indicates the drive motor has failed, stalled, or tripped its thermal overload, preventing the drum from turning. This is a motor and drive system fault, not a drain issue. highintermediate	high	intermediate
HUB	Reference guide covering GE dryer fault codes for GTD and GFD series dryers, including their causes, symptoms, and repair paths. lowbeginner	low	beginner

Microwave3 codes

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Code	Issue	Severity	Difficulty
HUB	GE microwave ovens display error codes including PF (power failure), Sensor Error, Food Error, and various F-codes. GE uses a simpler code system than Whirlpool - most errors are descriptive text rather than alphanumeric codes. lowbeginner	low	beginner
PF	PF on a GE microwave simply means Power Failure - the power was interrupted and the microwave needs its clock reset. This is NOT an error code indicating a fault. PF is the most commonly searched GE microwave 'error' despite being a normal informational message. lowbeginner	low	beginner
SENSOR-ERROR	Sensor Error on a GE microwave means the built-in humidity sensor detected abnormal moisture readings during a sensor cooking cycle. The sensor measures steam output from the food to determine when cooking is complete, and the error triggers when readings are outside expected parameters. lowbeginner	low	beginner

Oven15 codes

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Code	Issue	Severity	Difficulty
DOOR-STUCK	A Ge oven door won't open after self-clean has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
F7	GE oven F7 means the control board has detected a shorted or continuously-pressed key on the touch panel. The board interprets a stuck or shorted membrane keypad button as a persistent function command, and displays F7 as a safety response to prevent unintended oven operation from an always-on input signal. mediumbeginner	medium	beginner
F96	F96 on a GE oven means the cooling fan that draws air past the control board has stopped working or is running below its required speed. GE convection ranges use this fan to prevent the control board from overheating during and after baking cycles. Without the fan running, the board's electronics overheat and the oven displays F96 as a protective shutdown. mediumbeginner	medium	beginner
F97	F97 on a GE oven indicates a communication or wiring fault in the back guard wire harness that connects the main oven control board to the rear secondary board. This code is specific to GE slide-in ranges such as the JSS86SPSS and CGS986SELSS, which have a rear control area (back guard) that houses a secondary electronics board communicating with the front main board. mediumintermediate	medium	intermediate
Fault 18	Fault 18 on a GE oven means the oven temperature sensor was reading outside the expected range when the control board performed its startup self-check. Unlike F3 (open sensor) or F20 (shorted sensor), Fault 18 specifically triggers at power-on initialization, indicating the sensor value did not fall within the acceptable startup window before the oven attempted to operate. mediumbeginner	medium	beginner
Fault 353	Fault 353 on a GE oven indicates a communication failure between the oven control and the range cooktop control module. This code appears exclusively on GE Profile and GE Cafe models with SmartHQ Wi-Fi integration, where the oven and cooktop sections communicate over an internal data bus. A loss of that communication triggers Fault 353 as a safety and functional alert. mediumbeginner	medium	beginner
NOT-HEATING	A Ge oven not heating up has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
SMOKING	Profile Convection, Self-Clean Residue, and Element Diagnosis mediumintermediate	medium	intermediate
WONT-START	A Ge oven won't turn on has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
F2	GE oven F2 means the oven temperature sensor detected a reading above 615 degrees F sustained for 35 seconds or more, triggering a thermal runaway safety shutdown. Unlike F3 or F20 which are sensor faults, F2 means the oven actually reached (or appeared to reach) a dangerous temperature - most often because a relay on the control board is stuck closed, keeping the bake element on continuously. highintermediate	high	intermediate
F20	F20 on a GE oven means the RTD temperature sensor is shorted - its resistance has dropped below 10 ohms, which the control board interprets as a dangerously high temperature reading. GE's RTD spec is 1080 ohms at room temperature, so a near-zero reading triggers an immediate safety shutdown. highbeginner	high	beginner
F200	GE oven F200 indicates a communication failure between the main control board and the upper secondary board on double-oven or specific GE range models that have two separate control boards. The upper board manages display and user interface functions while the main board controls heating elements, and F200 fires when data communication between them is interrupted. highintermediate	high	intermediate
F3	GE oven F3 means the RTD temperature sensor circuit is open - either the sensor probe has failed internally or the wiring between the sensor and control board is broken. The control board detects an infinite-resistance reading (no circuit) where it expects approximately 1080 ohms, and displays F3 as a safety response. highbeginner	high	beginner
F350	F350 on a GE oven indicates the oven control board (main board) has detected an internal fault or has failed self-diagnostic checks. Unlike F2 or F3 which point to external components, F350 is a board-level fault where the control board itself is reporting its own failure. highintermediate	high	intermediate
HUB	GE ovens display F-codes (F2, F3, F20, F96, F97) on standard ranges and numeric Fault codes (Fault 18, Fault 353) on newer GE Profile and GE Cafe models with SmartHQ Wi-Fi. Each code maps to a specific subsystem failure. Knowing the exact code narrows the diagnosis from the control board, RTD temperature sensor, cooling fan, or touch panel. highintermediate	high	intermediate

Refrigerator17 codes

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Code	Issue	Severity	Difficulty
FREEZING	A Ge refrigerator freezing food has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
ICE-MAKER	Causes and Fixes mediumintermediate	medium	intermediate
ICE-MAKER	A Ge refrigerator ice maker not working has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
LEAKING	Causes and Fixes mediumintermediate	medium	intermediate
LEAKING	A Ge refrigerator leaking water has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOISE	A Ge refrigerator making noise has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-COOLING	A Ge refrigerator not cooling has specific causes related to Ge's design and component choices. mediumintermediate	medium	intermediate
SYMPTOM	GE Profile refrigerator ice maker has stopped producing ice or produces small/hollow cubes mediumintermediate	medium	intermediate
WATER-DISPENSER	Causes and Fixes mediumintermediate	medium	intermediate
NC	The refrigerator is not reaching its target cooling temperature. The compressor is either not running or cannot maintain adequate refrigerant pressure. Both compartments will warm to room temperature if the fault is not resolved. criticalintermediate	critical	intermediate
EC	The evaporator coil temperature sensor has failed, or the defrost system has a fault that prevents the evaporator from maintaining proper temperature. The refrigerator cannot accurately track cooling performance. highintermediate	high	intermediate
EF	The evaporator fan motor inside the freezer compartment has stopped running or is not being detected by the control board. This fan circulates cold air from the evaporator coils throughout the freezer and fresh food sections. highintermediate	high	intermediate
SYMPTOM	GE Profile refrigerator is running but not maintaining proper temperatures in the fresh food compartment highintermediate	high	intermediate
ERR	The main control board and a secondary board (door board, dispenser board, or inverter board) have lost communication. The refrigerator may continue cooling but will have limited or no display and control functionality. moderateadvanced	moderate	advanced
HUB	Reference hub covering all fault codes displayed on GE Profile and GFE Series French door and side-by-side refrigerators. lowbeginner	low	beginner
XWFE-FILTER	The XWFE filter error on GE refrigerators means the water filter is not being recognized by the RFID chip reader. GE's XWFE filters contain an RFID chip that communicates with the refrigerator to verify the filter is genuine GE. lowbeginner	low	beginner

Washer24 codes

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Code	Issue	Severity	Difficulty
FRONT-LOAD-HUB	Complete List for GFW and Profile Models mediumbeginner	medium	beginner
NOISE	GE Washer Making Loud Noise: Belt, Clutch, and UltraFresh Door Latch Sounds mediumintermediate	medium	intermediate
NOT-DRAINING	A GE washer not draining has standing water in the drum. GE front-loaders with UltraFresh have a drain pump filter accessible from the lower front panel. GE top-loaders require accessing the pump from underneath. mediumintermediate	medium	intermediate
NOT-FILLING	GE Washer Not Filling With Water: Error 18, Valve Screen, and SmartDispense mediumintermediate	medium	intermediate
NOT-SPINNING	A GE washer not spinning is diagnosed differently depending on whether it is a GE standard top-loader, a GE Profile with SmartDispense, or a GE front-loader with UltraFresh Vent. Each line has distinct spin-related components. mediumintermediate	medium	intermediate
PROFILE-HUB	SmartDispense, UltraFresh, and Error Code Guide mediumbeginner	medium	beginner
SMELLS	GE Washer Smells Bad: UltraFresh Vent, Microban, and Cleaning Guide mediumintermediate	medium	intermediate
WONT-START	GE Washer Won't Start: Control Lock, Lid Switch, and SmartHQ Fixes mediumintermediate	medium	intermediate
E2	E2 indicates a motor speed control fault on GFW front-load models. The inverter board that drives the brushless motor has detected an error - either the board itself has failed, the motor stator has a winding fault, or the communication between the inverter and main board has broken down. highadvanced	high	advanced
Error 18	The water level sensor detected that water exceeded the safe maximum level inside the drum. The overflow protection circuit triggered to stop additional water from entering and protect against flooding. highintermediate	high	intermediate
Error 353	Error 353 indicates the drain pump failed to evacuate water from the drum within the required time. The pump motor may have failed, or an obstruction is preventing the impeller from turning. highintermediate	high	intermediate
H2O Supply Error	The washer attempted to fill with water but did not detect sufficient water entering the drum within the allotted time. The water inlet system failed to meet the required fill level. highbeginner	high	beginner
Canceled	The control board aborted the active wash cycle. This can result from a user action (door opened, cycle selector moved), a detected fault that triggered an automatic abort, or a communication error between the main board and the motor/UI board. moderatebeginner	moderate	beginner
Door Error	The door lock assembly did not engage or the control board did not receive confirmation that the door is locked. The machine will not start or has stopped mid-cycle due to an unconfirmed door lock state. moderateintermediate	moderate	intermediate
Error 27	Error 27 means the pressure sensor (water level switch) is sending a reading outside the expected range, or the control board is not receiving a valid water level signal. The machine cannot confirm the correct amount of water in the drum. moderateintermediate	moderate	intermediate
LIGHTS-FLASHING	One or more indicator lights on the control panel are flashing. Flashing light patterns are GE's way of indicating specific fault states when the display does not show a numbered error code, or when the machine is in a specific mode. moderatebeginner	moderate	beginner
NOT-DRYING	The washer completes its cycle but clothes come out soaking or excessively wet. The spin cycle is not extracting enough water from the load. This is a washer spin issue, not a dryer problem. moderatebeginner	moderate	beginner
NOT-FILLING	The washer starts a cycle but little or no water enters the drum. The machine may display an H2O Supply Error or may simply sit without filling and eventually time out. moderatebeginner	moderate	beginner
TROUBLESHOOTING	Symptom-based troubleshooting guide covering the 9 most common GE washer problems across GTW top-load and GFW front-load models. moderatebeginner	moderate	beginner
DIAGNOSTIC-MODE	Instructions for entering and running GE washer diagnostic/service mode on GFW front-load and GTW top-load models, including test cycle sequences and reading output codes. lowbeginner	low	beginner
DRAIN-FILTER	Maintenance guide for cleaning the drain pump filter on GE GFW front-load washers. The filter catches lint, coins, and debris before they reach the pump impeller. A clogged filter reduces drainage performance and can trigger Error 353. lowbeginner	low	beginner
HUB	Reference guide covering all GE washer error codes across GTW top-load and GFW front-load series, including fault meanings, causes, and fix paths. lowbeginner	low	beginner
RESET	Step-by-step reset procedures for all GE washer models, including soft power reset, GTW top-load lid-lift reset, and GFW front-load Start/Pause reset. lowbeginner	low	beginner
TANK-LOW	Tank Low is a maintenance alert on GE SmartDispense models indicating that the built-in detergent or fabric softener reservoir is running low and needs to be refilled. This is not a fault code and does not affect machine operation. lowbeginner	low	beginner

Lg

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Dishwasher23 codes

View all 23 codes →

Code	Issue	Severity	Difficulty
LEAKING	A Lg dishwasher leaking has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-CLEANING	A Lg dishwasher not cleaning dishes has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOT-DRAINING	A Lg dishwasher not draining has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOT-DRYING	LG Dishwasher Not Drying: TrueSteam, Condensation Drying, and Rinse Aid mediumintermediate	medium	intermediate
NOT-DRYING	A Lg dishwasher not drying dishes has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
SMELLS	A Lg dishwasher smells bad has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
WONT-START	A Lg dishwasher won't start has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
AE	The base pan leak sensor has detected water or elevated moisture in the drip tray beneath the dishwasher tub criticalbeginner	critical	beginner
L2	A secondary-position leak sensor in the base pan has detected moisture, separate from the primary AE sensor location criticalbeginner	critical	beginner
E1	The NTC thermistor (temperature sensor) is reading outside its expected resistance range, causing the control board to flag a temperature circuit fault highintermediate	high	intermediate
HE	The heating circuit has faulted -- either the heating element failed to raise water temperature to the target within the allowed time, or the NTC thermistor is reading outside its expected range highintermediate	high	intermediate
LE	The direct-drive inverter wash motor has stalled, locked, or failed to reach operating speed within the expected startup window highadvanced	high	advanced
P1	The wash pump circuit has detected a pressure or performance fault -- the pump is running but not building expected spray pressure, or the pump motor circuit has failed highadvanced	high	advanced
1E	The water level pressure switch is not responding correctly or is reading an unexpected pressure signal during the fill or wash cycle moderateintermediate	moderate	intermediate
6E	The turbidity (water clarity) sensor or optical soil sensor is reading outside its expected range or has failed to communicate with the control board moderateintermediate	moderate	intermediate
BE	A button on the control panel is stuck in the pressed position or the control panel PCB is registering a continuous key-down signal moderateintermediate	moderate	intermediate
IE	The water level sensor did not detect enough water in the tub after the fill valve was commanded to open during the fill cycle moderatebeginner	moderate	beginner
OE	The drain cycle timed out -- water was not removed from the tub within the expected time window moderatebeginner	moderate	beginner
RE	The rinse aid dispenser circuit or the rinse phase of the cycle has encountered a fault -- either the dispenser solenoid failed to actuate or the rinse cycle did not complete as expected moderatebeginner	moderate	beginner
CL	Child lock is active. The control panel is locked and will not respond to button presses until unlocked. lowbeginner	low	beginner
HUB	Hub page covering all LG dishwasher error codes across LG's direct-drive inverter motor platform lowbeginner	low	beginner
NE	The SmartThinQ NFC tag module could not be read or communication with the NFC circuit failed during a cycle or startup check lowbeginner	low	beginner

Dryer18 codes

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Code	Issue	Severity	Difficulty
HUB-CODES	LG Dryer Error Codes: d80, tE, dE, Flow Sense Complete Guide mediumintermediate	medium	intermediate
NOISE	A Lg dryer making noise has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOT-HEATING	A Lg dryer not heating has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	A Lg dryer not spinning or tumbling has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOT-TURNING-OFF	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
SMELLS	A Lg dryer smells like burning has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
SMELLS-BURNING	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	A Lg dryer takes too long to dry has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
TAKING-LONG	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
WONT-START	A Lg dryer won't start has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
D90	LG's Flow Sense system detected that airflow restriction has reached 90% of the maximum blockage threshold. The dryer actively reduces heat output to prevent overheating. Drying performance drops significantly at this level. criticalbeginner	critical	beginner
D95	Exhaust airflow restriction has reached 95% of the maximum blockage threshold. The dryer has shut off the heating element entirely and will only tumble without heat. This is the most severe Flow Sense warning. Lint accumulation at this level is a fire hazard. criticalbeginner	critical	beginner
9A5	The dryer's control system detected an abnormal power supply condition. This code is most common on gas models, where the dryer runs on a standard 120V household circuit. An incorrect voltage, wiring fault, or failed control board can all trigger 9A5. highadvanced	high	advanced
D80	LG's Flow Sense system detected airflow restriction at 80% of the maximum blockage threshold. The dryer will still run and heat, but performance degrades and the system is warning you before it escalates to D90 or D95. highbeginner	high	beginner
TE1	The exhaust temperature sensor (thermistor) circuit is open or shorted. The dryer cannot safely monitor exhaust air temperature and will not operate normally until the fault is resolved. highintermediate	high	intermediate
CL	CL is a maintenance reminder, not a fault code. It indicates that the lint filter needs to be cleaned. The dryer continues to function normally and CL does not indicate any component failure. lowbeginner	low	beginner
HUB	Reference guide for all LG dryer error codes including D80, D90, D95 (Flow Sense duct blockage family), TE1 (thermistor failure), CL (clean filter reminder), and 9A5 (power supply fault). lowbeginner	low	beginner
RESET	A guide to all LG dryer reset methods, covering soft reset, hard reset, and code-specific clearing procedures for D80/D90/D95 duct codes, TE1, and 9A5. lowbeginner	low	beginner

Microwave1 codes

View all 1 codes →

Code	Issue	Severity	Difficulty
F3	F3 on an LG microwave indicates a keypad or touchpad membrane short circuit. The control board detects a key being pressed continuously or multiple keys registering simultaneously. mediumintermediate	medium	intermediate

Oven7 codes

View all 7 codes →

Code	Issue	Severity	Difficulty
NOT-HEATING	Causes and Fixes mediumintermediate	medium	intermediate
WONT-START	Causes and Fixes mediumintermediate	medium	intermediate
F19	The main control board (PCB) has detected an internal fault or has failed. The control board manages all oven functions: temperature regulation, element switching, display, and safety monitoring. highadvanced	high	advanced
F3	The oven temperature sensor (RTD probe) has failed open or shorted. The control board cannot receive valid temperature data and has shut down the heating function as a safety measure. highintermediate	high	intermediate
F9	The oven door lock motor or latch assembly has failed to lock or unlock correctly. The control board commanded the door lock to engage or disengage and did not receive the expected confirmation signal within the timeout period. highintermediate	high	intermediate
F11	One or more buttons on the oven keypad are stuck in the depressed position or have an internal short circuit. The control board detected a sustained button signal that indicates a key has been held down beyond a normal press duration. moderateintermediate	moderate	intermediate
HUB	Reference guide covering all LG range and oven fault codes for the LRE and LDE series, including their causes, severity, and repair paths. lowbeginner	low	beginner

Refrigerator21 codes

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Code	Issue	Severity	Difficulty
CH E	CH E on an LG refrigerator indicates a chamber (compartment) temperature sensor has failed or is reading outside its expected range. LG refrigerators have multiple temperature sensors for different zones. mediumintermediate	medium	intermediate
CL E	CL E on an LG refrigerator indicates a communication or cooling fan fault in the door section. This code appears on LG French door and side-by-side models with the Linear Compressor system. mediumintermediate	medium	intermediate
COMPRESSOR	Linear Compressor Warranty and Diagnosis mediumintermediate	medium	intermediate
FREEZING	A Lg refrigerator freezing food has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
ICE-MAKER	Causes and Fixes mediumintermediate	medium	intermediate
ICE-MAKER	A Lg refrigerator ice maker not working has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
LEAKING	A Lg refrigerator leaking water has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
LEAKING	Causes and Fixes mediumintermediate	medium	intermediate
NOISE	A Lg refrigerator making noise has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-COOLING	A Lg refrigerator not cooling has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
WATER-DISPENSER	Causes and Fixes mediumintermediate	medium	intermediate
1F	The freezer defrost temperature sensor has failed or is reading out of its expected range, preventing the automatic defrost cycle from operating correctly. highintermediate	high	intermediate
CF E	The condenser fan motor has stopped running. This fan blows air across the condenser coils to dissipate heat from the compressor. Without it, the compressor overheats and the refrigerator stops cooling. highintermediate	high	intermediate
DH F	The defrost heater assembly has an open circuit or the thermal fuse in the defrost circuit has blown. The automatic defrost cycle cannot run, and frost will accumulate on the evaporator coils over time. highintermediate	high	intermediate
ER CO	The condenser temperature sensor has failed or is out of range. On some LG models, ER CO also indicates a communication error between the main control board and a secondary board. highintermediate	high	intermediate
FF E	The freezer evaporator fan motor has stopped running or the control board cannot detect its operation. Without this fan, cold air cannot circulate from the freezer to the fresh food compartment. highintermediate	high	intermediate
ER IF	The ice maker temperature sensor has failed or is reading outside its expected range. The control board cannot accurately monitor ice maker temperature, so ice production stops as a safety measure. moderateintermediate	moderate	intermediate
IF E	The ice maker compartment fan motor has failed or is blocked. This fan maintains proper temperature in the ice maker section and is separate from the main freezer evaporator fan. moderateintermediate	moderate	intermediate
IF E	Ice maker fan motor fault detected by the main control board moderateintermediate	moderate	intermediate
HUB	Reference hub covering all LG refrigerator fault codes displayed via Smart Diagnosis on French door, side-by-side, and bottom-freezer models. lowbeginner	low	beginner

Washer35 codes

View all 35 codes →

Code	Issue	Severity	Difficulty
DOOR-WONT-OPEN	Child Lock, Mid-Cycle, and Emergency Release mediumintermediate	medium	intermediate
LEAKING	A Lg washer leaking has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOISE	A Lg washer making loud noise has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOISE	LG Washer Making Loud Noise: Direct Drive Motor, Bearing, and Spider Arm mediumintermediate	medium	intermediate
NOT-DRAINING	An LG washer not draining has standing water in the drum. LG front-loaders have an accessible drain pump filter behind a small door on the lower front panel. LG displays the OE error code when drainage fails. mediumbeginner	medium	beginner
NOT-FILLING	LG Washer Not Filling With Water: IE Error, Valve, and ThinQ Diagnosis mediumintermediate	medium	intermediate
NOT-FILLING	A Lg washer not filling with water has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	An LG washer that fills and washes but will not spin has a motor, hall sensor, rotor, stator, or control board issue. LG's Direct Drive motor system eliminates belts and pulleys, so spin failures are almost always electrical rather than mechanical. mediumintermediate	medium	intermediate
SMELLS	LG Washer Smells Bad: Tub Clean Cycle, Door Seal, and ThinQ Reminders mediumintermediate	medium	intermediate
SMELLS	A Lg washer smells bad or musty has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
THINQ-HUB	Smart Diagnosis, Wi-Fi, and App Troubleshooting mediumbeginner	medium	beginner
VIBRATING	An LG washer vibrating excessively during spin has an imbalanced load, worn shock absorbers/suspension, leveling issue, or a vibration sensor fault. LG's TrueBalance anti-vibration system uses sensors to detect and compensate for imbalance. mediumbeginner	medium	beginner
WONT-START	A Lg washer won't start has specific causes related to Lg's design and component choices. mediumintermediate	medium	intermediate
03	Communication error between the main control board (PCB) and the sub-board, display board, or motor control unit highadvanced	high	advanced
FE	The washer detected water filling beyond the safe level, indicating the inlet valve is not closing or the pressure sensor is misreading water level highintermediate	high	intermediate
LE	The motor is locked or unable to rotate, detected by the hall sensor reporting no rotor movement to the main control board highintermediate	high	intermediate
OE	The washer cannot drain water within the allotted time window, typically 4-6 minutes for a full drain cycle highintermediate	high	intermediate
DE	The washer does not detect the door as properly closed and locked - the door interlock switch is not receiving the closed-door signal moderateintermediate	moderate	intermediate
DL	The door latch is engaged but the door lock solenoid failed to electrically lock the door, or the lock assembly did not send the locked confirmation signal to the control board moderateintermediate	moderate	intermediate
LD	The washer is draining but taking significantly longer than the expected drain time, indicating a partial restriction in the drain path moderateintermediate	moderate	intermediate
PE	The water level pressure sensor is not communicating a valid signal to the control board, or the air dome hose is blocked preventing accurate water level detection moderateintermediate	moderate	intermediate
TE	The thermistor (NTC temperature sensor) is reading outside the expected resistance range or has an open/short circuit moderateintermediate	moderate	intermediate
CL	Child Lock feature is active, disabling all control panel buttons except the Power button lowbeginner	low	beginner
DIAG	Guide to accessing LG washer built-in service diagnostic mode and LG ThinQ Smart Diagnosis for component-level testing lowadvanced	low	advanced
ECL	Extended tub clean reminder - the washer escalated from TCL because the Tub Clean cycle has been skipped for an extended period beyond the initial 30-cycle reminder lowbeginner	low	beginner
HUB	Reference directory for all LG washer error codes across front-load and top-load models lowbeginner	low	beginner
NOSOUND	Symptom guide for LG washers that power on but produce no mechanical sound during operation, or that fail to start any movement lowintermediate	low	intermediate
PF	The washer detected a loss of power during an active cycle and is notifying you on the next power-up lowbeginner	low	beginner
RESET	Guide covering all reset methods for LG washer front-load and top-load models, including soft reset, hard reset, and factory reset via diagnostic mode lowbeginner	low	beginner
STUCK	Symptom guide for LG washers that stop advancing through wash, rinse, drain, or spin stages lowintermediate	low	intermediate
SUD	The washer detected excessive suds in the drum that interfere with washing performance and draining lowbeginner	low	beginner
TCL	The washer's internal cycle counter has reached the threshold (typically every 30 wash cycles) and is reminding you to run the Tub Clean maintenance cycle lowbeginner	low	beginner
U5	Unbalanced load detected during spin cycle - identical in meaning to UL but displayed on specific LG washer model lines lowbeginner	low	beginner
UL	The washer detected an unbalanced load during the spin cycle and cannot safely reach the target spin speed lowbeginner	low	beginner
WONTON	Symptom guide for LG washers with no power response, including dead display, unresponsive buttons, or failure to start a cycle lowintermediate	low	intermediate

Maytag

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Dishwasher15 codes

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Code	Issue	Severity	Difficulty
LEAKING	A Maytag dishwasher leaking has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
NOISE	Causes and Fixes mediumintermediate	medium	intermediate
NOT-CLEANING	A Maytag dishwasher not cleaning dishes has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
NOT-DRAINING	A Maytag dishwasher not draining has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
NOT-DRYING	Maytag Dishwasher Not Drying: PowerDry Fan, Heated Dry, and Rinse Aid mediumintermediate	medium	intermediate
NOT-DRYING	A Maytag dishwasher not drying dishes has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
SMELLS	A Maytag dishwasher smells bad has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
WONT-START	A Maytag dishwasher won't start has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
F8 E4	The wash motor circuit has faulted -- the motor failed to start, drew a current spike, or the motor control relay on the board failed highintermediate	high	intermediate
FA E4	The FA E4 error code on Maytag dishwashers indicates a flood protection (FA) fault with a specific sub-code (E4) pointing to the anti-flood sensor detecting water in the base pan. On Maytag Quiet Series models, FA is the flood alert system - when water accumulates in the machine's bottom base pan (below the tub), a float or sensor triggers FA to prevent water from reaching the floor. E4 specifically identifies that the anti-flood sensor registered water where it should not be. highintermediate	high	intermediate
H2O	The H2O error code on Maytag dishwashers indicates the machine did not detect water entering the tub within the required fill time. Maytag dishwashers share the Whirlpool control platform and use the same fill-monitoring logic: if the water level sensor does not confirm a fill within 4 minutes, the control board stops the cycle and displays H2O. The root cause is either a blocked water supply, a failed inlet valve, or a faulty float switch reporting the tub is already full. highintermediate	high	intermediate
E1 F9	The drain cycle ran but water level in the tub did not drop within the timeout window -- same fault as F9 E1, displayed in reversed order on some Maytag control board firmware versions moderatebeginner	moderate	beginner
F6 E1	The water level sensor did not detect sufficient water in the tub after the fill valve was commanded to open during the fill cycle moderatebeginner	moderate	beginner
F9 E1	The drain cycle ran but water level in the tub did not drop to the expected level within the timeout window moderatebeginner	moderate	beginner
HUB	Hub page covering all Maytag dishwasher error codes on the Whirlpool DTM platform with Maytag-specific diagnostic angles lowbeginner	low	beginner

Dryer13 codes

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Code	Issue	Severity	Difficulty
HUB-CODES	Maytag Dryer Error Codes: F01, E1, AF, Complete Code Reference mediumintermediate	medium	intermediate
NOISE	A Maytag dryer making noise has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
NOT-HEATING	A Maytag dryer not heating has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
NOT-SPINNING	A Maytag dryer not spinning or tumbling has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
NOT-TURNING-OFF	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
SMELLS	A Maytag dryer smells like burning has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
SMELLS-BURNING	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
TAKING-LONG	A Maytag dryer takes too long to dry has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
TAKING-LONG	Vent, Sensor, and Component Diagnosis mediumintermediate	medium	intermediate
WONT-START	A Maytag dryer won't start has specific causes related to Maytag's design and component choices. mediumintermediate	medium	intermediate
F01	The main electronic control board has detected an internal fault or has failed. The control board is the central computer managing all dryer functions including cycle timing, heat control, and motor operation. highadvanced	high	advanced
F3 E3	The moisture sensor bars inside the drum have stopped working correctly. They are either coated with fabric softener residue that blocks conductivity, or the sensor assembly itself has failed. The dryer cannot determine when the laundry is dry. moderateintermediate	moderate	intermediate
HUB	Reference guide covering all Maytag dryer fault codes, their causes, and repair paths for the MED and MGD series and the shared Whirlpool/Maytag platform. lowbeginner	low	beginner

Oven7 codes

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Code	Issue	Severity	Difficulty
F3	F3 on a Maytag oven means the oven temperature sensor (RTD probe) has an open circuit. The control board cannot read the oven cavity temperature. mediumintermediate	medium	intermediate
F5	F5 on a Maytag oven indicates a door latch fault - the latch did not reach the expected position during self-clean lock or unlock. The latch motor ran but the position switch did not confirm completion. mediumintermediate	medium	intermediate
F7	F7 on a Maytag oven means a function key on the touchpad is stuck. The control board detects continuous input from one of the function keys (Bake, Broil, Self-Clean, etc.). mediumintermediate	medium	intermediate
NOT-HEATING	Causes and Fixes mediumintermediate	medium	intermediate
WONT-START	Causes and Fixes mediumintermediate	medium	intermediate
F1	F1 on a Maytag oven is a general control board fault indicating the board cannot complete its self-test successfully. This is a catch-all code for internal board failures. highintermediate	high	intermediate
F1 E0	F1E0 on a Maytag oven means the EEPROM memory on the control board has failed or become corrupted. The oven cannot read its calibration and configuration data. highintermediate	high	intermediate

Refrigerator2 codes

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Code	Issue	Severity	Difficulty
ICE-MAKER	Maytag Refrigerator Ice Maker Not Working: Water Supply, Temp, and Arm Check mediumintermediate	medium	intermediate
NOT-COOLING	Maytag Refrigerator Not Cooling: Condenser, Defrost, and 10-Year Warranty mediumintermediate	medium	intermediate

Washer58 codes

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Code	Issue	Severity	Difficulty
BRAVOS-HUB	F7E1, F5E2, F0E3, LOC Guide mediumbeginner	medium	beginner
CENTENNIAL-HUB	F7E1, LID LOCK, LOC Guide mediumbeginner	medium	beginner
COMMERCIAL-HUB	Maytag Commercial Technology Washer Error Codes and Troubleshooting Guide mediumbeginner	medium	beginner
E3	E3 on Maytag washers indicates a motor-related fault. Like Whirlpool E-codes, E3 is typically the second part of an F/E pair. The most common context is F0 E3 (load size exceeded) or a standalone E3 on older models meaning motor overcurrent protection tripped. mediumbeginner	medium	beginner
F2 E2	F2 E2 on a Maytag washer indicates the user interface (UI) board has a communication fault with the central control unit (CCU). The UI board is the control panel where you select cycles and press Start - it sends commands to the main CCU board via a ribbon cable. mediumintermediate	medium	intermediate
F5	F5 on a Maytag washer is the door/lid lock system fault category. The F5 is always followed by a sub-code (E2, E3, or E4) that specifies the exact lock failure. F5 E2 means the lock circuit did not complete (lock did not engage). F5 E3 means the lock engaged but the door/lid switch did not confirm closure. F5 E4 means the unlock circuit failed (door stuck locked). mediumbeginner	medium	beginner
FLASHING-LIGHTS	Maytag washers without a digital display communicate error codes through flashing LED patterns on the control panel. The lights blink in counted sequences where the number of flashes corresponds to specific error codes. Different Maytag series (Bravos, Centennial, Commercial Technology) use different LED positions for their blink codes. mediumbeginner	medium	beginner
LEAKING	A Maytag washer leaking from the bottom has different causes depending on model type. Maytag Bravos XL has a known transmission seal issue. Front-load MHW models leak from the door boot seal. mediumintermediate	medium	intermediate
LF	LF on a Maytag washer means the washer is taking too long to fill with water. The control board expects the tub to reach the target water level within a specific time (usually 8-10 minutes). If the pressure switch does not detect the correct level in time, LF triggers. mediumbeginner	medium	beginner
MAXIMA-HUB	The Maytag Maxima is a front-loading washer series (MHW model prefix) that shares the Whirlpool Duet platform. Maxima models use the same F/E error code system and CCU board as the Duet, but with Maytag-specific features including PowerWash cycle and the Advanced Vibration Control (AVC) system. mediumbeginner	medium	beginner
NOISE	A Maytag washer making loud noise during spin has a worn bearing, broken motor coupler, failing clutch, or foreign object between the tubs. The type of noise identifies the failing component. mediumintermediate	medium	intermediate
NOISE	Maytag Washer Making Loud Noise: Bravos Actuator, Centennial Coupler Sounds mediumintermediate	medium	intermediate
NOT-DRAINING	A Maytag washer not draining has standing water in the drum. Maytag front-loaders have an accessible pump filter. Top-loaders require accessing the pump from underneath. The F9 E1 or F21 error code appears when drainage fails. mediumintermediate	medium	intermediate
NOT-FILLING	Maytag Washer Not Filling With Water: Valve, Screen, and F8E1 Error Fix mediumintermediate	medium	intermediate
NOT-SPINNING	A Maytag washer not spinning is diagnosed differently depending on the model line. Maytag Bravos XL uses a shift actuator, Centennial uses a direct-drive coupler, and Commercial Technology models use heavy-duty clutch assemblies. mediumintermediate	medium	intermediate
SMELLS	Maytag Washer Smells Bad: Clean Washer Cycle, Affresh, and Bravos XL Fix mediumintermediate	medium	intermediate
WONT-START	A Maytag washer that won't start but has power has a lid lock, control board, or user error (control lock) issue. Maytag Bravos XL and Centennial models have different lid lock assemblies. mediumintermediate	medium	intermediate
E01 F09	Overfill condition or excessively long fill time detected. The pressure switch detected water rising above the expected maximum level, or the washer filled for too long without the pressure switch confirming the correct water level. highintermediate	high	intermediate
F0 E3	The pressure switch is sending inconsistent or out-of-range signals. The control board cannot reliably determine the water level. highintermediate	high	intermediate
F03 E01	Main control board lost communication with the pressure sensor or the pressure sensor is returning out-of-range readings. The board cannot determine water level in the tub. highintermediate	high	intermediate
F51	The motor rotor position sensor (RPS) is not communicating with the control board. The board cannot determine motor position and cannot start or control the spin cycle. highadvanced	high	advanced
F6 E2	F6 E2 on a Maytag washer indicates a communication failure between the user interface (UI) board and the central control unit (CCU). Unlike F2 E2 which is UI-to-CCU, F6 E2 specifically indicates the CCU is not responding to the UI board's requests. highintermediate	high	intermediate
F6 E3	Main control board (MCU) and user interface board (UI) have lost communication. Connected by a ribbon cable or wire harness. highadvanced	high	advanced
F7 E1	The motor is not reaching expected RPM. The control board commanded a specific speed but feedback shows the motor is running too slow, too fast, or not at all. highadvanced	high	advanced
F7 E4	F7 E4 on a Maytag washer means the motor could not reach its target RPM within the expected time. The motor is running but not fast enough - this differs from F7 E1 (motor not running at all) because the motor IS spinning, just not reaching the commanded speed. highintermediate	high	intermediate
DL/F	Generic door lock failure. DL/F is an older code format used on Maytag Neptune and early Maxima models. Newer models use F5 E2 for the same issue. moderateintermediate	moderate	intermediate
E1 F9	Drain cycle exceeded maximum time. The tub did not reach empty within the drain window (usually 8 minutes). Same root cause as F21 but used on newer Maytag platforms. moderateintermediate	moderate	intermediate
E2 F3	The temperature sensor (thermistor) circuit is open or reading out of range. Control board cannot determine water temperature. moderateintermediate	moderate	intermediate
F21	Long drain timeout. The control board expected the tub to empty within 8 minutes but water is still detected. Drain pump ran but could not empty the tub. moderateintermediate	moderate	intermediate
F5 E2	The door lock assembly failed to lock after 6 attempts. Control board sent lock signal but door lock feedback switch never confirmed engagement. moderateintermediate	moderate	intermediate
F5 E3	The door lock assembly failed to unlock after the cycle completed. Control board sent unlock signal but the door lock feedback switch still reports locked. moderateintermediate	moderate	intermediate
F8 E1	The washer did not detect adequate water flow. The inlet valve was opened but the pressure switch did not detect a water level rise within the expected timeframe. moderatebeginner	moderate	beginner
FL LO	Water flow to the washer is too low. Filling too slowly. Specific to Maytag Maxima and MHW front-load models. moderatebeginner	moderate	beginner
5D	Excessive suds detected. The control board pauses the cycle to let foam dissipate. Also displays as SD or SUD on some control board revisions. lowbeginner	low	beginner
CENTENNIAL-DIAG	Maytag Centennial top-load washers (MVWC series) use a lid-close sequence to enter diagnostic mode. The machine stores fault codes from recent cycles that can be read using LED blink patterns on the control panel. lowbeginner	low	beginner
CL	CL on a Maytag washer means Control Lock is activated - this is NOT an error code, it is a feature. Control Lock disables all buttons to prevent accidental changes during a cycle or to child-proof the washer. CL appears when someone has accidentally activated the lock. lowbeginner	low	beginner
DIAG	Step-by-step guide to entering Maytag washer diagnostic mode and reading stored error codes by model line lowintermediate	low	intermediate
DIAGNOSTIC-MODE	Maytag washers (manufactured by Whirlpool) include a diagnostic service mode that retrieves stored fault codes from recent wash cycles. The entry method differs between top-load and front-load models but both produce the same F/E or F digit fault codes. lowbeginner	low	beginner
F0 E2	The control board detected an excessive load condition. Motor drawing too much current or drum speed significantly below target due to weight. lowbeginner	low	beginner
F0 E7	The control board detected a load imbalance or unexpected weight signal while the door or lid is reported as open. lowbeginner	low	beginner
GUIDE	Complete troubleshooting guide for the 12 most common Maytag washer problems with diagnostic steps and repair links lowbeginner	low	beginner
HUB	Complete reference guide for all Maytag washer error codes with meanings and repair links lowbeginner	low	beginner
LOC	Control Lock is active. The user interface is locked to prevent accidental button presses. Displays as LOC or CL depending on model year. lowbeginner	low	beginner
RESET	Step-by-step guide to resetting a Maytag washer using power cycle, button sequence, and calibration methods lowbeginner	low	beginner
RL	The washer detected a load in the drum during a Clean Washer cycle. The Clean Washer cycle must run with an empty drum. lowbeginner	low	beginner
SD	SD on a Maytag washer means excessive suds were detected in the wash tub. The washer adds extra rinse cycles to remove suds, extending the wash time. If suds persist, the washer stops and displays SD. On some Maytag displays, SD appears as 5d due to the seven-segment LED rendering. lowbeginner	low	beginner
SYMPTOM	Maytag washer cycling through the rinse phase repeatedly or not advancing from rinse to spin lowintermediate	low	intermediate
SYMPTOM	Maytag washer door or lid locked and unable to open after cycle or power interruption lowbeginner	low	beginner
SYMPTOM	Maytag washer display showing Sensing and not advancing to fill or wash cycle lowintermediate	low	intermediate
SYMPTOM	Maytag washer lid lock not engaging, stuck locked, or preventing cycle start or completion lowbeginner	low	beginner
SYMPTOM	Reference guide for diagnosing Maytag washer noises by sound type lowintermediate	low	intermediate
SYMPTOM	Maytag washer has standing water remaining in the drum after a wash cycle completes, or water appearing in the drum when the washer has not been used lowbeginner	low	beginner
SYMPTOM	Maytag washer not starting a wash cycle or showing no response when attempting to start lowbeginner	low	beginner
SYMPTOM	Maytag washer completing wash and rinse cycles but not spinning to remove water from clothes lowintermediate	low	intermediate
SYMPTOM	Maytag washer not draining water from the tub after the wash cycle lowbeginner	low	beginner
SYMPTOM	Maytag washer completely stopped working or not functioning properly lowbeginner	low	beginner
SYMPTOM	Maytag washer vibrating or shaking excessively during spin cycle lowbeginner	low	beginner
SYMPTOM	Maytag washer completing wash actions but display or timer not advancing to the rinse or spin phase lowintermediate	low	intermediate

Bosch

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Dishwasher43 codes

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Code	Issue	Severity	Difficulty
NOISE	Pump, Spray Arm, and Motor Diagnosis mediumintermediate	medium	intermediate
NOT-CLEANING	PrecisionWash, Spray Arms, and Filter Guide mediumintermediate	medium	intermediate
NOT-DRYING	Condensation Drying, CrystalDry, and Rinse Aid mediumintermediate	medium	intermediate
E02	Short circuit detected in wash motor circuit; safety shutdown triggered to prevent further damage criticaladvanced	critical	advanced
E01	Wash motor electrical fault or wiring issue detected by the main control board highadvanced	high	advanced
E09	Heating element or flow-through heater has failed; water not reaching target wash temperature highadvanced	high	advanced
E15	AquaStop system detected water in the base pan, triggering flood protection mode highintermediate	high	intermediate
E17	Water inlet valve not closing properly, causing overfill condition detected by pressure switch highintermediate	high	intermediate
E20	Wash motor not reaching expected RPM or not starting at all highadvanced	high	advanced
E92	Communication failure between the main control board and the user interface board highadvanced	high	advanced
E92-10	Main control board cannot communicate with the user interface board specifically highadvanced	high	advanced
E92-40	Configuration data mismatch between boards, typically after a replacement board was not programmed for the specific model highadvanced	high	advanced
5UC	Water supply insufficient or not detected at inlet valve; no flow reaching the dishwasher moderatebeginner	moderate	beginner
E05	Dishwasher did not reach required water level within the time limit; fill timeout moderatebeginner	moderate	beginner
E07	Water flow sensor turbine not detecting water movement during fill or wash phase moderateintermediate	moderate	intermediate
E11	NTC thermistor reading out of expected range; open circuit or short detected in temperature sensor moderateintermediate	moderate	intermediate
E19	Fill valve solenoid not operating correctly or diverter valve not responding to control signal moderateintermediate	moderate	intermediate
E21	Wash motor running below expected speed, possibly jammed by debris or worn bearings moderateintermediate	moderate	intermediate
E22	Water turbidity sensor malfunction or filter system clogged, preventing proper wash cycle monitoring moderatebeginner	moderate	beginner
E23	Drain pump motor malfunction, possibly seized or electrically failed moderateintermediate	moderate	intermediate
E24	Dishwasher cannot drain water; drain path is blocked or drain hose is kinked moderatebeginner	moderate	beginner
E25	Drain pump impeller blocked or pump cover not secured properly moderatebeginner	moderate	beginner
E31	Pressure switch or water level sensor providing incorrect or no readings to the control board moderateintermediate	moderate	intermediate
E61-03	Door lock actuator not engaging or not reporting back to control board after locking moderateintermediate	moderate	intermediate
H01	Water temperature did not reach the target within the allotted time; heating timeout moderateintermediate	moderate	intermediate
SA NL	Dishwasher is in service mode diagnostic state or display has failed; SA NL stands for Service Appliance, No Light moderateintermediate	moderate	intermediate
DIAG	n/a - guide for accessing the hidden diagnostic test program lowintermediate	low	intermediate
GUIDE	Comprehensive symptom-based troubleshooting guide for Bosch dishwasher problems lowbeginner	low	beginner
GUIDE	Guide for resolving a Bosch dishwasher that will not change from the Auto cycle setting lowbeginner	low	beginner
GUIDE	Reference guide for all Bosch dishwasher control panel symbols and indicator icons lowbeginner	low	beginner
GUIDE	Product education guide for the Bosch Silence Plus dishwasher line covering features, common issues, and error codes specific to this series lowbeginner	low	beginner
GUIDE	Step-by-step guide to starting a Bosch dishwasher across all control panel types lowbeginner	low	beginner
HUB	Reference hub for all Bosch dishwasher error codes, organized by system with links to full repair guides lowbeginner	low	beginner
RESET	n/a (expanded topic) lowbeginner	low	beginner
SYMPTOM	Reference guide for Bosch dishwasher beep patterns and how to silence or respond to each type lowbeginner	low	beginner
SYMPTOM	No water entering the dishwasher tub during fill phase lowbeginner	low	beginner
SYMPTOM	Dishwasher stops during a wash cycle before completion; may or may not show error code lowintermediate	low	intermediate
SYMPTOM	Dishwasher continues running, drain pump stays on, or cycle does not complete and stop lowintermediate	low	intermediate
SYMPTOM	Control panel buttons not registering presses or responding incorrectly lowintermediate	low	intermediate
SYMPTOM	Symptom hub for all Bosch dishwasher drain problems with and without error codes lowbeginner	low	beginner
SYMPTOM	Flashing indicator lights on Bosch dishwasher panels indicate error states or require user action lowbeginner	low	beginner
SYMPTOM	Dishwasher has power but will not begin a wash cycle lowbeginner	low	beginner
SYMPTOM	Dishwasher shows no power - no lights, no display, no response to any button lowintermediate	low	intermediate

Oven2 codes

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Code	Issue	Severity	Difficulty
E115	E115 on a Bosch oven indicates a door lock system fault. The door lock motor did not reach its expected position within the allowed time. mediumintermediate	medium	intermediate
E305	E305 on a Bosch oven indicates the oven temperature sensor (NTC thermistor) has failed or is reading outside its expected range. mediumintermediate	medium	intermediate

Refrigerator3 codes

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Code	Issue	Severity	Difficulty
E2	E2 on a Bosch refrigerator indicates an ice maker sensor fault. The ice maker temperature sensor is reading out of range or has an open/short circuit. mediumintermediate	medium	intermediate
E3	E3 on a Bosch refrigerator indicates the freezer temperature sensor has failed or is reading out of range. The main board cannot accurately monitor freezer temperature. mediumintermediate	medium	intermediate
HUB	Complete reference for Bosch refrigerator error codes. Bosch uses a simple E-number system: E2 (ice maker sensor), E3 (freezer sensor), and model-specific display codes. mediumbeginner	medium	beginner

Washer4 codes

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Code	Issue	Severity	Difficulty
HUB	Bosch front-load washing machines use E-codes on most models, displayed on the digital panel. Bosch washers are manufactured in Germany and the USA with Bosch-specific components that differ significantly from Whirlpool/Maytag/LG platforms. mediumbeginner	medium	beginner
LEAKING	AquaStop Protection and Door Boot Seal Fix mediumintermediate	medium	intermediate
NOT-DRAINING	E18 Error Code and Pump Filter Fix mediumintermediate	medium	intermediate
NOT-SPINNING	EcoSilence Drive Motor and E18 Drain Error mediumintermediate	medium	intermediate

Generic

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Airconditioner5 codes

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Code	Issue	Severity	Difficulty
E1	Room Temperature Sensor Fault mediumintermediate	medium	intermediate
E4	Compressor Overload or High Pressure mediumintermediate	medium	intermediate
E5	Overcurrent or Water Tank Full mediumintermediate	medium	intermediate
E8	Overload Protection or Anti-Freeze mediumintermediate	medium	intermediate
FL	Water Tank Full on Portable AC mediumintermediate	medium	intermediate

Dishwasher2 codes

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Code	Issue	Severity	Difficulty
HOW-CLEAN	Deep Clean, Filter, and Spray Arm Maintenance mediumintermediate	medium	intermediate
HOW-RESET	How to Reset a Dishwasher: Every Brand Reset Method mediumbeginner	medium	beginner

Dryer3 codes

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Code	Issue	Severity	Difficulty
HOW-CLEAN-VENT	Step-by-Step Lint Removal to Prevent Fires mediumintermediate	medium	intermediate
HOW-RESET	How to Reset a Dryer: Every Brand Reset Method mediumbeginner	medium	beginner
SYMPTOM	Dryer drum will not rotate, leaving clothes damp and stationary inside the drum highintermediate	high	intermediate

Freezer1 codes

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Code	Issue	Severity	Difficulty
HOW-TO	Step-by-step guide for safely defrosting manual-defrost and auto-defrost freezers lowbeginner	low	beginner

Furnace2 codes

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Code	Issue	Severity	Difficulty
BLOWING-COLD	Furnace Blowing Cold Air: Thermostat, Flame Sensor, and Limit Switch Fixes mediumintermediate	medium	intermediate
NOT-HEATING	Furnace Not Heating: Thermostat, Pilot, Filter, and Blower Diagnosis mediumintermediate	medium	intermediate

Oven5 codes

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Code	Issue	Severity	Difficulty
HOW-RESET	How to Reset an Oven: Every Brand Reset Method and F-Code Clearing mediumbeginner	medium	beginner
HOW-SELF-CLEAN	Timing, Safety, and What to Remove First mediumintermediate	medium	intermediate
SYMPTOM	Oven fails to reach set temperature or produces no heat at all highintermediate	high	intermediate
HOW-TO	Step-by-step guide for replacing a burned-out bake or broil element in an electric oven moderatebeginner	moderate	beginner
HOW-TO	Step-by-step guide to replacing a worn-out gas oven igniter that no longer heats properly moderateintermediate	moderate	intermediate

Refrigerator10 codes

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Code	Issue	Severity	Difficulty
HOW-CLEAN-COILS	Location, Tools, and Schedule mediumintermediate	medium	intermediate
HOW-RESET	How to Reset a Refrigerator: Every Brand Reset Method mediumbeginner	medium	beginner
HOW-TO	How to test and replace the rubber door gasket on any refrigerator mediumbeginner	medium	beginner
SYMPTOM	Refrigerator fresh food section is warm while the freezer maintains proper temperature highintermediate	high	intermediate
SYMPTOM	Freezer is cold but the fresh food compartment is warm or not cooling properly highintermediate	high	intermediate
SYMPTOM	Refrigerator has power (light works) but is not cooling the compartment to the set temperature highbeginner	high	beginner
SYMPTOM	Compact or mini refrigerator is running but not reaching the target temperature highbeginner	high	beginner
HOW-TO	Freezer door gasket is not sealing properly, allowing warm air to enter and causing frost buildup or temperature issues moderatebeginner	moderate	beginner
HOW-TO	Manual defrost procedure for compact and mini refrigerators lowbeginner	low	beginner
HOW-TO	Complete guide to safely defrosting a refrigerator with heavy ice buildup lowbeginner	low	beginner

Washer8 codes

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Code	Issue	Severity	Difficulty
HOW-CLEAN	Front Load and Top Load Deep Cleaning Guide mediumintermediate	medium	intermediate
HOW-RESET	How to Reset a Washing Machine: Every Brand Reset Method mediumbeginner	medium	beginner
SYMPTOM	Washer fails to both spin and drain, typically caused by a single shared fault highintermediate	high	intermediate
SYMPTOM	Washing machine fails to drain water and will not enter the spin cycle regardless of brand or model highintermediate	high	intermediate
HOW-TO	Removing mold and mildew buildup from the rubber door gasket on a front-loading washing machine moderatebeginner	moderate	beginner
SYMPTOM	Washer vibrates excessively, walks across the floor, or bangs loudly during the spin cycle moderatebeginner	moderate	beginner
HOW-TO	Monthly maintenance guide for eliminating odor, mold, and residue in front-load washing machines lowbeginner	low	beginner
HOW-TO	Step-by-step guide to deep cleaning and sanitizing any washing machine lowbeginner	low	beginner

Waterheater1 codes

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Code	Issue	Severity	Difficulty
NO-HOT-WATER	Water Heater No Hot Water: Gas vs Electric vs Tankless Diagnosis mediumintermediate	medium	intermediate

Frigidaire

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Dishwasher10 codes

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Code	Issue	Severity	Difficulty
I30	The base pan overflow float has been raised, indicating water in the drip tray beneath the tub criticalbeginner	critical	beginner
E20	The pump motor or pump circuit has faulted - the control board detected an overcurrent, open circuit, or communication failure in the pump motor circuit highintermediate	high	intermediate
F3	The high-limit thermostat has tripped, detecting water temperature above the safe maximum or detecting an open circuit condition on the thermostat highintermediate	high	intermediate
E30	The detergent or rinse aid dispenser solenoid circuit has faulted - the dispenser did not open at the expected point in the wash cycle moderatebeginner	moderate	beginner
ER/UO	The door lock mechanism failed to engage or disengage properly - the control board sent a lock or unlock command and did not receive confirmation from the latch assembly moderateintermediate	moderate	intermediate
I20	The drain cycle ran but the water level in the tub did not drop to the expected level within the allowed time moderatebeginner	moderate	beginner
I40	The water level sensor did not detect sufficient water filling the tub within the expected time window after the inlet valve was activated moderatebeginner	moderate	beginner
CL	CL on a Frigidaire dishwasher display means the Control Lock feature is active. This is not a fault code - it is a child safety lock that disables all control panel buttons except the lock button itself. The dishwasher will not respond to any button presses until CL is deactivated. lowbeginner	low	beginner
HUB	Hub page covering all Frigidaire dishwasher error codes on the Electrolux platform, including the I-series codes unique to Frigidaire lowbeginner	low	beginner
PF	Power to the dishwasher was interrupted mid-cycle. PF is informational - it records that a power loss occurred, not that a component has failed. lowbeginner	low	beginner

Dryer1 codes

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Code	Issue	Severity	Difficulty
HUB	Hub page covering the most common Frigidaire dryer problems and their fixes moderateintermediate	moderate	intermediate

Oven15 codes

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Code	Issue	Severity	Difficulty
F11	F11 on a Frigidaire oven means the control board has detected a shorted or stuck key on the touchpad. The oven registers a key as continuously pressed, which is a safety lockout condition. On FGEF3059TF, FGEF3062TF, and FPEF3077QF models this is overwhelmingly caused by the flex cable between the touchpad membrane and the control board delaminaing from heat cycling. mediumintermediate	medium	intermediate
F12	F12 on a Frigidaire oven means the main control board has lost communication with a secondary board or internal module. The fault indicates that the data bus between the primary ERC (Electronic Range Control) and a secondary component such as a display board, relay board, or temperature module has failed or timed out. mediumintermediate	medium	intermediate
F15	F15 on a Frigidaire oven means the control board has lost communication with a secondary module or has detected an internal communication timeout. F15 is similar to F12 in indicating a data bus fault, but may specifically reference a different communication channel or secondary component depending on the model. mediumintermediate	medium	intermediate
F22	F22 on a Frigidaire oven means the door lock system has failed to complete a lock or unlock cycle. The control board expected the door latch position switch to confirm that the door had locked or unlocked, but the confirmation signal was never received within the timeout window. The oven door may be stuck in the locked position. mediumintermediate	medium	intermediate
F3	F3 on a Frigidaire oven means the RTD temperature probe circuit is open - the control board is receiving no resistance signal from the probe, which the board interprets as an extreme temperature reading or a broken sensor circuit. The oven will not heat until the probe is repaired or replaced. mediumbeginner	medium	beginner
F30	F30 on a Frigidaire oven means the lower oven RTD temperature probe circuit is completely open - the control board is receiving infinite resistance from the lower probe, which indicates a broken sensor wire. This code appears only on double oven models (such as FGEW276SPF) and disables the lower oven heating functions. mediumbeginner	medium	beginner
F31	F31 on a Frigidaire oven means the lower oven RTD temperature probe has a fault condition - the resistance reading is out of range (either too high, indicating near-open, or the circuit has a shorted reading). F31 applies specifically to double oven models like the FGEW276SPF that have separate upper and lower oven cavities with independent temperature sensors. The lower oven element and bake functions will be disabled. mediumbeginner	medium	beginner
F50	F50 on a Frigidaire oven means the door latch mechanism has failed to complete its lock or unlock cycle within the expected time. This code almost always appears in relation to the self-clean function, which requires the door to lock before the high-temperature cycle begins. The latch motor, latch arm, or latch position switch may be the fault point. mediumintermediate	medium	intermediate
F90	F90 on a Frigidaire oven means the door latch motor has failed electrically or mechanically. The control board sent the signal to lock the door and received no confirmation that the latch reached its locked position. This is a more specific diagnosis than F50 - F90 points directly to the latch motor rather than a general timeout in the latch mechanism. mediumintermediate	medium	intermediate
F1	F1 on a Frigidaire oven means the main Electronic Range Control (ERC) board has detected an internal failure. This is the board's self-diagnostic reporting that its own processing, memory, or component circuits have failed. Unlike F10 or F27 which point to specific relay failures, F1 is a general control board fault that typically requires full board replacement. highintermediate	high	intermediate
F10	F10 on a Frigidaire oven means the control board has detected a runaway temperature condition - the oven is exceeding the safe operating limit. Unlike many brands where a similar code indicates a sensor fault, Frigidaire F10 is most often caused by the bake relay on the control board sticking in the closed position, which makes the oven heat continuously with no upper limit. highintermediate	high	intermediate
F27	F27 on a Frigidaire oven means the control board has detected that the bake relay is stuck in the closed position - the relay continues to supply power to the bake element even after the control board has commanded it to open. This is a safety-critical fault because the oven can overheat if the relay does not open. highintermediate	high	intermediate
HUB	Frigidaire ovens display F and E prefix fault codes to identify failures in the control board, RTD temperature probe, door latch, keypad, and relay systems. Understanding the code prefix is the first diagnostic step - F10 and F11 are the two most safety-critical codes and require immediate action. highintermediate	high	intermediate
SYMPTOM	Frigidaire oven does not heat when set to bake, broil, or preheat highintermediate	high	intermediate
F16	F16 on a Frigidaire oven means the meat probe (food temperature probe) circuit is registering a short - the probe or its connector is reading near-zero resistance when it should be open or reading a valid food temperature. The oven will disable the probe-based cooking functions and may display F16 even if the probe is not in use. lowbeginner	low	beginner

Refrigerator4 codes

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Code	Issue	Severity	Difficulty
CE	CE on a Frigidaire refrigerator indicates a communication error between the main control board and the display/user interface board. mediumintermediate	medium	intermediate
F3	F3 on a Frigidaire refrigerator means a temperature sensor has failed. The sensor is either open circuit, short circuit, or reading far outside the expected range. mediumintermediate	medium	intermediate
H1	H1 on a Frigidaire refrigerator means the internal temperature has risen above the safe threshold. This is a temperature alarm, not necessarily a component fault. H1 is the most common Frigidaire fridge code. mediumbeginner	medium	beginner
HUB	Complete reference for Frigidaire refrigerator error codes. Frigidaire (owned by Electrolux) uses alphanumeric codes including H1 (high temp alarm), F3 (sensor fault), and CE (communication error). mediumbeginner	medium	beginner

Washer4 codes

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Code	Issue	Severity	Difficulty
LEAKING	Boot Seal and AquaStop Guide mediumintermediate	medium	intermediate
NOT-DRAINING	AquaStop, Pump, and E21 Error Fix mediumintermediate	medium	intermediate
NOT-SPINNING	Electrolux Platform Motor and Belt Fixes mediumintermediate	medium	intermediate
HUB	Reference guide for all Frigidaire washer error codes including E11 (water fill timeout), E21 (drain timeout), E41/E42 (door lock fault), E5E (motor fault), and EF1 (clogged drain pump filter). lowbeginner	low	beginner

Resmed

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Cpap31 codes

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Code	Issue	Severity	Difficulty
006	Error 006 on the ResMed AirSense 10 is a therapy alert code indicating the device detected an abnormal condition during therapy - most commonly a sustained mask leak above the threshold, an incorrect mask detection, or a sensor anomaly. Unlike hardware E-codes (such as Error 12), the 006 code does not indicate a failed internal component and often resolves after a device restart and mask refit. mediumbeginner	medium	beginner
21	Error 21 on the ResMed AirSense 10 indicates the device measured a sustained large leak during therapy that exceeded the recoverable threshold. ResMed defines a large leak as airflow exceeding 24 L/min beyond the intentional mask vent flow. When this level is sustained the device cannot maintain prescribed pressure, therapy effectiveness is compromised, and Error 21 is logged. mediumbeginner	medium	beginner
24	Error 24 on the ResMed AirSense 10 indicates a fault in the ClimateLine or HumidAir climate control system - specifically that the device's heated humidifier or heated tube temperature sensor is reporting an out-of-range condition or a heating element failure. The climate control subsystem on the AirSense 10 manages both the HumidAir heated chamber and the optional ClimateLine heated tube, and Error 24 fires when this system cannot maintain or verify the target temperature. mediumbeginner	medium	beginner
6	Error 6 on the ResMed AirSense 10 is a mask leak detection error where the device's flow sensor has identified airflow leaving the circuit outside of the expected mask vent pattern. Error 6 is closely related to Error 21 but fires at a lower leak threshold or in response to an abrupt leak event rather than a sustained one. It signals that the therapy circuit integrity has been compromised at the mask interface. mediumbeginner	medium	beginner
DIAG-STUCK	The ResMed AirSense 10 runs a periodic self-diagnostic that checks motor function, pressure calibration, and sensor readings. If this diagnostic hangs or freezes, the device becomes unresponsive and cannot be used for therapy until the diagnostic completes or the device is power cycled. This is a software hang, not a hardware failure in most cases. mediumbeginner	medium	beginner
HEAT-ERROR	Heating System Error on the ResMed AirSense 10 or 11 specifically indicates a fault in the heating plate circuit that warms water in the HumidAir chamber. Unlike a general humidifier fault which may be a connection issue, this error points to an electrical failure in the heating element itself or the device-side driver circuit that powers it. The device continues to deliver therapy but without heated humidification. mediumbeginner	medium	beginner
HIGH-LEAK	The ResMed AirSense 10 and 11 calculate unintentional mask leak in real-time and display a 'High Leak' warning when the leak rate exceeds approximately 24 L/min for a sustained period. High leak reduces therapy effectiveness because the device cannot maintain target pressure. The leak rate is logged in the myAir app and on the SD card data. mediumbeginner	medium	beginner
HUMID-ERROR	A humidifier fault message on the ResMed AirSense 10 or 11 means the device detected a problem with the HumidAir heated humidifier module. The fault can indicate corroded contact pins preventing electrical connection, a failed heating plate inside the water chamber, or a device-side circuit issue. The device can still deliver therapy without humidification when this fault is active. mediumbeginner	medium	beginner
HUMID-FAULT	The ResMed HumidAir heated humidifier connects to the base of the AirSense 10 and 11 via gold contact pins that carry both power and data signals. When the humidifier is not working, the water does not warm up and air arrives dry at the mask. The most common cause is corroded or dirty contact pins between the water chamber and the device base, followed by a failed heating plate inside the chamber. mediumbeginner	medium	beginner
KEEPS-OFF	A ResMed AirSense 10 or 11 that repeatedly shuts off during therapy is usually caused by the SmartStart/SmartStop feature misinterpreting brief mask repositioning as therapy end. SmartStop detects when breathing stops at the mask and automatically powers down the motor. This feature can also be triggered by high mask leak, aggressive EPR settings, or intermittent power supply issues. mediumbeginner	medium	beginner
PROBLEMS	ResMed AirSense 10 and AirSense 11 CPAP machines are reliable, but over time they develop predictable issues ranging from mask leaks and humidifier faults to motor noise and pressure drift. Most problems fall into three categories: air delivery (leaks, pressure, noise), climate control (humidifier, water leaks, dry mouth), and device errors (screen failures, diagnostic hangs, motor life counters). mediumbeginner	medium	beginner
SCREEN-FAULT	A blank or unresponsive screen on the ResMed AirSense 10 or 11 while the device still delivers therapy indicates an LCD backlight failure or loose internal ribbon cable. The display module is separate from the therapy engine - the motor, pressure sensor, and all therapy functions can operate independently of the screen. A dead screen does not mean the device is dead. mediumintermediate	medium	intermediate
TROUBLESHOOT	A systematic troubleshooting guide for ResMed AirSense 10 and AirSense 11 CPAP machines covering the most frequently reported issues. This guide walks through a logical diagnostic sequence - power and startup, air delivery, humidification, mask and leak, and device errors - to isolate the root cause before contacting your DME provider. mediumbeginner	medium	beginner
12	Error 12 on the ResMed AirSense 10 and AirSense 11 means the blower motor has failed, stalled, or is drawing abnormal current. The AirSense 10 uses a brushless DC blower motor that is sealed inside the device chassis and is not user-accessible or user-replaceable. When Error 12 appears the device cannot deliver pressurized air, and therapy stops immediately. criticalbeginner	critical	beginner
001	Error 001 on the ResMed AirSense 10 is a motor startup fault code indicating the blower motor failed to reach its target speed within the expected startup window. The device initiates a controlled ramp-up sequence when therapy begins - if the motor does not accelerate to the minimum operating RPM within this window, Error 001 is logged and therapy is terminated. This is distinct from Error 12 (full motor failure) in that the motor attempted to start but could not complete the startup sequence. highbeginner	high	beginner
1	Error 1 on the ResMed AirSense 10 means the device's flow sensor detected airflow lower than expected for the current motor speed and pressure setting. This indicates the motor is running but producing insufficient airflow to meet the prescribed therapy pressure. The fault can stem from a blocked air path, a partially failing motor, or a flow sensor that is reading incorrectly. highbeginner	high	beginner
13	Error 13 on the ResMed AirSense 10 indicates the device's pressure relief system was triggered by an abnormally high pressure event - either the motor attempted to drive pressure beyond the safe operating range, or the pressure sensor detected an anomaly that forced the relief valve to activate. This error suggests a problem with pressure regulation within the device and not a mask or leak issue. highbeginner	high	beginner
HOS Panic 06	HOS Panic 06 on the ResMed AirSense 10 is a hardware operating system panic code - a firmware-level crash where the device's embedded OS encountered a fatal error it could not recover from. The code is displayed on the device screen and the device is unresponsive until power-cycled. This is a software fault, not a hardware component failure, and it almost always resolves with a factory reset. highbeginner	high	beginner
HUB	ResMed AirSense 10 and AirSense 11 devices display error codes when the device detects a hardware fault, sensor failure, firmware crash, or therapy-affecting condition. ResMed uses three distinct code families: numerical E-codes for device-level hardware faults (Error 1, 6, 12, 13, 21, 24), three-digit alert codes for therapy alerts (001, 006), and HOS Panic codes for hardware OS-level firmware crashes. Understanding which family the code belongs to tells you immediately whether the device needs service, a reset, or a simple user adjustment. highbeginner	high	beginner
NOT-WORKING	A ResMed CPAP that is 'not working' covers a broad range of symptoms - from no power at all, to powering on but not delivering air, to delivering air but not treating apnea effectively. The diagnosis depends on identifying which specific function has failed: power delivery, motor operation, pressure regulation, humidification, or data reporting. highbeginner	high	beginner
WONT-TURN-ON	A ResMed AirSense 10 or 11 that will not turn on has no response when the Start/Stop button is pressed - no screen illumination, no fan spin, no indicator lights. This is almost always a power delivery issue rather than an internal device failure. The AirSense power supply is a separate external brick that converts AC wall power to 24V DC, and it is the most common single point of failure. highbeginner	high	beginner
AIR-WARM	When a ResMed AirSense 10 or 11 delivers air that feels uncomfortably warm, the Climate Control humidity and heated tubing settings are typically set too high for the current room temperature. The HumidAir humidifier heats water to create warm moist air, and the ClimateLineAir heated tubing maintains that warmth to the mask. If either is set too aggressively, the delivered air can feel hot and stifling. lowbeginner	low	beginner
DIAG-MODE	Diagnostic mode on ResMed AirSense devices is a hidden service menu that displays sensor readings, motor RPM, pressure measurements, error logs, and cumulative therapy hours. It is intended for DME providers and sleep technicians but can be accessed by patients for troubleshooting. lowbeginner	low	beginner
DRY-MOUTH	Dry mouth during CPAP therapy on a ResMed AirSense 10 or 11 means either the humidification level is too low, or the user is breathing through their mouth while using a nasal mask or nasal pillows. Mouth breathing bypasses the humidified nasal airway and exposes the mouth and throat to dry pressurized air. This is one of the most common reasons patients stop using their CPAP. lowbeginner	low	beginner
LEAK-WATER	Water leaking from a ResMed CPAP means condensation is forming inside the tubing (called rainout) and dripping toward the mask, or the HumidAir water chamber itself is leaking from a crack, overfilling, or worn seal gasket. Rainout happens when warm humidified air cools as it travels through unheated tubing in a cold room. lowbeginner	low	beginner
MOTOR-LIFE	The AirSense 10 tracks cumulative motor run hours and displays 'Motor Life Exceeded' after approximately 20,000 hours of use. This is a maintenance reminder, not an error - the device continues to deliver therapy normally. ResMed uses this counter to flag devices that have exceeded the expected blower motor lifespan. lowbeginner	low	beginner
NOISE	A ResMed AirSense 10 or 11 making unusual noise during therapy can indicate several things depending on the sound type. A buzzing or vibration usually means the device is sitting on a resonant surface. Grinding suggests motor bearing wear. Whistling points to a mask or tubing air leak. Gurgling means water in the tubing. The AirSense 10 normally produces a smooth, low hum at about 26 dBA. lowbeginner	low	beginner
PRESSURE-HIGH	The ResMed AirSense 10 and 11 AutoSet models automatically adjust pressure between a minimum and maximum range (typically 4-20 cmH2O) based on real-time detection of apnea and hypopnea events. When therapy pressure feels too high, the device is responding to detected breathing events by increasing pressure to keep the airway open. The maximum pressure can only be adjusted through the clinical settings menu. lowintermediate	low	intermediate
RESET	Resetting a ResMed AirSense 10 or 11 restores user-accessible settings (comfort preferences, ramp, EPR, climate control, alarms) to factory defaults and clears stored therapy data. Clinical pressure settings are not affected by a user reset - they require the provider access code. A hard power cycle (unplugging for 60 seconds) resolves firmware freezes without clearing data. lowbeginner	low	beginner
SNOWFLAKE	The snowflake icon on the ResMed AirSense 10 and 11 appears when the HumidAir humidifier detects that the ambient room temperature is too cold for effective heated humidification. It is a status indicator, not an error code. The device continues therapy normally when the snowflake is displayed, but the humidifier reduces or disables heating to prevent condensation buildup in the tubing. lowbeginner	low	beginner
TOO-MUCH-AIR	When a ResMed AirSense 10 or 11 feels like it is blowing too much air, the device is delivering pressure at or near the maximum setting in its AutoSet range. On AutoSet models, the device automatically adjusts pressure between a minimum and maximum (typically 4-20 cmH2O) based on detected apnea and hypopnea events. The sensation of too much air usually means the max pressure needs lowering or the ramp feature needs enabling. lowbeginner	low	beginner

Daikin

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Minisplit28 codes

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Code	Issue	Severity	Difficulty
A3	A3 on a Daikin mini-split means the condensate drain system has failed and the secondary drain pan float switch has triggered. Daikin indoor units have a primary drain path and a secondary overflow pan with its own float switch as a safety backup. mediumbeginner	medium	beginner
HUB	Complete reference of all Daikin mini-split error codes organized by code prefix. U codes relate to communication and voltage, E codes to compressor and pressure protection, F codes to temperature sensors, L codes to inverter and overcurrent faults, and A codes to drain and airflow issues. mediumbeginner	medium	beginner
NOT-COOLING	Refrigerant, Filter, and U4 Diagnosis mediumintermediate	medium	intermediate
NOT-COOLING	A Daikin mini-split that runs but does not cool effectively has either an airflow restriction, a refrigerant issue, or a compressor fault. The inverter should modulate compressor speed to match the cooling load. mediumbeginner	medium	beginner
NOT-HEATING	A Daikin mini-split not heating can be caused by incorrect mode settings, defrost cycle operation, low refrigerant, outdoor coil ice buildup, or compressor fault. In heat pump mode, the outdoor unit extracts heat from outdoor air - performance decreases as outdoor temperature drops. mediumbeginner	medium	beginner
ORANGE-LIGHT	The orange LED on a Daikin indoor unit serves dual purpose: it indicates timer mode when steady or slow-blinking, and error codes when blinking in counted patterns. A continuously blinking orange light typically means a fault condition. mediumbeginner	medium	beginner
TROUBLESHOOT	Systematic troubleshooting guide for Daikin mini-split systems covering the most common issues: not cooling, not heating, error codes, unusual noises, ice buildup, and communication faults between indoor and outdoor units. mediumbeginner	medium	beginner
U2	U2 indicates a general power supply voltage fault affecting the entire system. While U9 is specific to the outdoor unit, U2 can trigger from voltage issues at either the indoor or outdoor unit power feed. mediumintermediate	medium	intermediate
U3	U3 indicates a temperature sensor (thermistor) on the outdoor unit is reading out of range or has an open/short circuit. Daikin outdoor units have multiple thermistors monitoring ambient temperature, coil temperature, and discharge pipe temperature. mediumintermediate	medium	intermediate
U9	U9 indicates the outdoor unit is receiving insufficient voltage to operate safely. Daikin inverter boards have a minimum operating voltage of approximately 187V for 208-230V models, and U9 triggers when voltage drops below this threshold. mediumintermediate	medium	intermediate
E11	E11 indicates a fault in the coordination between two compressors in a Daikin multi-compressor outdoor unit. This code only appears on larger capacity systems with tandem or twin-rotary compressor configurations. criticaladvanced	critical	advanced
E6	E6 indicates the compressor failed to start or is mechanically locked. The inverter board attempted to energize the compressor but detected no rotation or abnormal current patterns indicating the rotor is not turning. criticaladvanced	critical	advanced
L1	L1 indicates a fault on the outdoor unit inverter board itself. The inverter board converts incoming AC power to variable-frequency DC to drive the compressor at different speeds, and L1 triggers when the board detects an internal component failure. criticaladvanced	critical	advanced
L5	L5 indicates an instantaneous overcurrent trip on the compressor circuit. Unlike U0 which builds over time, L5 is a sudden spike that triggers immediate shutdown. This often indicates a phase-to-phase short in the compressor windings or a failed inverter power transistor on the outdoor board. criticaladvanced	critical	advanced
E0	E0 is a general safety protection code indicating one of several safety devices in the system has triggered. This is a catch-all code that Daikin uses when a safety switch or sensor has activated but a more specific error code is not available. highintermediate	high	intermediate
E3	E3 indicates the refrigerant system high-side pressure has exceeded the safe operating limit. The high pressure switch on the outdoor unit has tripped, shutting down the compressor to prevent system damage or safety hazard. highintermediate	high	intermediate
E4	E4 indicates the refrigerant system low-side pressure has dropped below the safe minimum, triggering the low pressure switch. This typically means refrigerant loss from a leak or a major restriction in the refrigerant circuit. highadvanced	high	advanced
E5	E5 indicates the compressor overload relay has tripped, meaning the compressor is drawing more current than its rated capacity for an extended period. This is distinct from L5 (instantaneous trip) - E5 is a sustained overload condition. highintermediate	high	intermediate
E7	E7 on a Daikin mini-split indicates the outdoor fan motor has failed to start, is running at incorrect speed, or has an electrical fault. Daikin outdoor units use a plastic fan blade mounted on a direct-drive DC motor, and the plastic blade is known to become brittle and crack in cold climates. highintermediate	high	intermediate
F3	F3 indicates the compressor discharge pipe temperature has exceeded the safe limit, typically above 120C (248F). This protects the compressor from overheating damage. The discharge thermistor mounted on the compressor output pipe monitors this temperature continuously. highadvanced	high	advanced
NOT-WORKING	A Daikin mini-split that is not working at all could have a power issue, communication fault, or major component failure. This guide covers the complete non-operation scenario where neither indoor nor outdoor unit responds. highintermediate	high	intermediate
RED-LIGHT	A red LED on a Daikin indoor unit indicates an operation error. The red light is the most serious LED indicator and typically means the unit has detected a fault requiring attention. Count the blink pattern to determine the specific error. highintermediate	high	intermediate
U0	U0 on a Daikin mini-split signals that the compressor is drawing excessive current, which typically indicates low refrigerant charge or a mechanical compressor fault. Daikin inverter compressors modulate speed continuously, and U0 triggers when current draw exceeds the safe threshold at any operating speed. highadvanced	high	advanced
U4	U4 on a Daikin mini-split indicates a communication failure between the indoor and outdoor units. Daikin uses a dedicated 2-wire serial bus (S1-S2 terminals) for this communication, and any break in that circuit triggers U4. Unlike Mitsubishi which uses a 3-wire system, Daikin's 2-wire bus is polarity-sensitive on some models. highintermediate	high	intermediate
WONT-TURN-ON	A Daikin mini-split that will not turn on has no response to the remote control and no display on the indoor unit. This is typically a power delivery issue rather than a refrigerant or mechanical fault. highbeginner	high	beginner
BLUE-LIGHT	The blue LED on newer Daikin models (Emura, Quaternity) indicates Wi-Fi connectivity status or economy mode activation. A blinking blue light is not an error code on these models. lowbeginner	low	beginner
GREEN-LIGHT	The green LED on a Daikin indoor unit indicates operational status. Different blink patterns have different meanings: steady on or fast blink (2Hz) means the unit is running normally, slow blink (0.5Hz) means standby, and specific blink counts between pauses indicate error codes on models without numeric displays. lowbeginner	low	beginner
RESET	Resetting a Daikin mini-split clears error codes, restores default settings, or recovers from a frozen control state. Daikin units have multiple reset methods depending on whether you need a soft reset, hard reset, or factory reset. lowbeginner	low	beginner

Kenmore

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Dishwasher4 codes

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Code	Issue	Severity	Difficulty
NOT-CLEANING	Filter, Spray Arm, and Water Temp mediumintermediate	medium	intermediate
NOT-DRAINING	Pump, Filter, and Drain Hose Fixes mediumintermediate	medium	intermediate
NOT-DRYING	Heated Dry, Rinse Aid, and Vent mediumintermediate	medium	intermediate
WONT-START	Door Latch, Control Lock, and Power mediumintermediate	medium	intermediate

Dryer5 codes

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Code	Issue	Severity	Difficulty
HUB	LG-Made vs Whirlpool-Made Complete Guide mediumintermediate	medium	intermediate
NOISE	Kenmore Dryer Making Squeaking, Thumping, or Grinding Noise mediumintermediate	medium	intermediate
NOT-HEATING	Thermal Fuse, Element, and Gas Valve Fixes mediumintermediate	medium	intermediate
NOT-SPINNING	Belt, Idler Pulley, and Motor Fixes mediumintermediate	medium	intermediate
F01	The main electronic control board has detected an internal fault or has failed. The control board manages all dryer functions including heat, motor operation, and cycle timing. highadvanced	high	advanced

Oven5 codes

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Code	Issue	Severity	Difficulty
F30	F30 on a Kenmore oven indicates the lower oven temperature sensor has an open circuit. This code appears on Kenmore double oven models made by Frigidaire (model prefix 790). mediumintermediate	medium	intermediate
NOT-HEATING	Frigidaire-Made vs Whirlpool-Made Diagnosis mediumintermediate	medium	intermediate
WONT-START	Control Lock and Power Diagnosis mediumintermediate	medium	intermediate
F10	F10 on a Kenmore oven indicates the oven temperature has exceeded safe limits. The control board detected a runaway temperature condition. highintermediate	high	intermediate
F2	F2 on a Kenmore oven means the oven temperature exceeded the maximum threshold during operation. Similar to F10 but may trigger at a lower threshold on some models. highintermediate	high	intermediate

Refrigerator3 codes

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Code	Issue	Severity	Difficulty
ER 1F	ER 1F on a Kenmore 795 refrigerator means the freezer compartment defrost temperature sensor is out of range or has an open/short circuit. This is the same code as LG 1F and affects the same component. highintermediate	high	intermediate
ER RF	ER RF on a Kenmore 795 refrigerator indicates the fresh food (refrigerator) compartment temperature sensor is out of range or has an open/short circuit. The refrigerator cannot accurately control compartment temperature without this sensor. highintermediate	high	intermediate
HUB	Kenmore 795 series refrigerators are manufactured on the LG platform and use the same error code system as LG refrigerators. Codes appear on the front display and indicate sensor failures, fan issues, and communication faults. lowbeginner	low	beginner

Washer9 codes

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Code	Issue	Severity	Difficulty
ELITE-HUB	F21, LE, OE, F5E2 Guide mediumbeginner	medium	beginner
NOT-DRAINING	Pump Filter Location by Manufacturer mediumintermediate	medium	intermediate
NOT-SPINNING	LG-Made vs Whirlpool-Made Diagnosis Guide mediumintermediate	medium	intermediate
WONT-START	Lid Lock and Control Board by Manufacturer mediumintermediate	medium	intermediate
LE	The motor has locked, stalled, or is drawing excessive current. The control board detected that the motor cannot rotate under load and shut down the cycle to prevent motor burnout. highintermediate	high	intermediate
OE	The washer attempted to drain water from the drum but did not complete drainage within the required time. Water remains in the tub at the end of the drain phase. highintermediate	high	intermediate
5d	The washer's pressure sensor or optical sensor has detected excessive foam in the drum. The wash cycle pauses automatically to allow the suds to dissipate before resuming, to protect the pump and prevent suds from overflowing. moderatebeginner	moderate	beginner
HOW-TO-USE	Usage guide for Kenmore front-load and top-load washers covering cycle selection, detergent type and dosing, load balancing, and best practices to prevent common error codes. lowbeginner	low	beginner
HUB	Reference guide covering Kenmore washer fault codes across all series. The 100 and 200 series use the Whirlpool/Maytag platform. The 400 and 500 series use the LG platform. Error codes differ between platforms. lowbeginner	low	beginner

Kitchenaid

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Dishwasher13 codes

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Code	Issue	Severity	Difficulty
577-0	577-0 on a KitchenAid dishwasher is a control board internal fault code that appears in the service diagnostic mode rather than during normal operation. It indicates that the control board has logged a specific internal fault in its memory. This code is typically read during a service call using the built-in diagnostic sequence rather than appearing spontaneously on the normal display. mediumadvanced	medium	advanced
8-4	The 8-4 error code on a KitchenAid dishwasher means the control board detected a heater circuit fault - the heating element did not raise water temperature to the required level within the expected cycle time. This numeric code appears on KitchenAid models with a digital display and is equivalent to the Clean light 7-blink code on indicator-only models. mediumintermediate	medium	intermediate
9-1	The 9-1 error code on a KitchenAid dishwasher means the diverter disc did not move to its expected position during a cycle. The diverter system routes wash water between the lower, upper, and (on KDTM models) third rack spray zones. When the diverter disc fails to advance to the next position, the control board registers 9-1. This is the same fault as Clean light 9 blinks on models without a numeric display. mediumintermediate	medium	intermediate
CLEAN-4-BLINK	Four blinks of the Clean light on a KitchenAid dishwasher means the water temperature thermistor is open - the control board is not receiving a valid temperature reading from the thermistor that monitors wash water temperature. The dishwasher cannot regulate heating properly without this sensor. mediumintermediate	medium	intermediate
CLEAN-7-BLINK	Seven blinks of the Clean light on a KitchenAid dishwasher means the control board detected a fault in the heater circuit. The dishwasher's heating element did not raise the water temperature to the target level within the expected time. This code corresponds to fault 7-1 in models that display numeric codes. mediumintermediate	medium	intermediate
CLEAN-9-BLINK	Nine blinks of the Clean light on a KitchenAid dishwasher means the diverter valve or diverter disc motor has a fault. The diverter system controls which spray arm zone receives water during the wash cycle - routing water between the lower spray arm, upper spray arm, and (on KDTM models) the third rack spray bar. A failed diverter means water may only spray from one zone. mediumintermediate	medium	intermediate
E1 F9	E1 F9 on a KitchenAid dishwasher means the control board detected that the drain cycle took longer than the allowed time - typically 2 minutes without the float switch being satisfied. The dishwasher shuts down to prevent flooding. The cause is almost always a physical restriction in the drain path rather than an electrical component failure. mediumbeginner	medium	beginner
E4 F8	E4 F8 on a KitchenAid dishwasher is the same fault as F8 E4 - a water fill failure or anti-flood float trigger. The code is displayed in two different orders across KitchenAid models depending on software version. Both E4 F8 and F8 E4 mean the dishwasher either did not fill with water in time or the base pan anti-flood float was raised by accumulated water. mediumbeginner	medium	beginner
F8 E4	F8 E4 on a KitchenAid dishwasher means the control board did not detect that the dishwasher filled with water within the expected time, or the anti-flood float switch under the unit has been triggered by water in the base pan. The dishwasher shuts down to prevent damage. This is the highest-volume fault code for KitchenAid dishwashers. mediumbeginner	medium	beginner
F9 E1	F9 E1 on a KitchenAid dishwasher is the same long drain fault as E1 F9 - the control board detected that the drain cycle exceeded the allowed time. The two display orders (F9 E1 and E1 F9) refer to the same fault and appear on different KitchenAid models depending on firmware version. The drain did not complete within 2 minutes. mediumbeginner	medium	beginner
HUB	KitchenAid dishwashers display fault codes in three formats depending on the model: alphanumeric codes (F8 E4, E1 F9), numeric codes (8-4, 9-1, 577-0), and blink codes on models without a numeric display (the Clean light blinks in patterns). Understanding which format your model uses is the first step to diagnosis. mediumintermediate	medium	intermediate
CLEAN-8-BLINK	Eight blinks of the Clean light on a KitchenAid dishwasher means the control board has detected low wash performance - the dishwasher completed a cycle but the washing conditions (water pressure, temperature, or spray arm function) were below minimum thresholds. This is not typically a component failure - it is a performance fault that points to maintenance issues. lowbeginner	low	beginner
PO	PO on a KitchenAid dishwasher display is not an error code. It means the Delay Start feature is active and the dishwasher is waiting to begin its cycle at the programmed delay time. The dishwasher is counting down the delay period and will start automatically when the countdown reaches zero. lowbeginner	low	beginner

Microwave3 codes

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Code	Issue	Severity	Difficulty
DOOR-ERROR	The 'Open/Close Door' error on KitchenAid microwaves is identical to the Whirlpool microwave door error because KitchenAid microwaves are manufactured by Whirlpool. The same 3 door interlock switches, door hooks, and diagnostic approach apply. mediumintermediate	medium	intermediate
HUB	KitchenAid microwave error codes are identical to Whirlpool codes because KitchenAid microwaves are manufactured by Whirlpool. The same F/E code system, door interlock switches, and touchpad membranes are used. mediumbeginner	medium	beginner
F1 E5	F1E5 on a KitchenAid microwave indicates the humidity sensor used for sensor cooking has failed or is reading out of range. KitchenAid microwaves are Whirlpool-manufactured, so this code is shared with Whirlpool models. lowintermediate	low	intermediate

Oven5 codes

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Code	Issue	Severity	Difficulty
F2 E0	F2E0 on a KitchenAid oven specifically indicates the Cancel/Off key circuit is shorted. This is more specific than F2E1 which indicates any key - F2E0 points directly to the cancel key circuit on the keypad membrane. mediumintermediate	medium	intermediate
F2 E1	F2E1 on a KitchenAid oven means the control board detected a keypad key stuck in the pressed position, most commonly the Cancel/Off key circuit. This is the same code as Whirlpool F2 E1. mediumintermediate	medium	intermediate
F9 E0	F9E0 on a KitchenAid oven means the door latch will not release after self-clean. The latch motor ran the self-clean cycle but the bimetal lock mechanism has not cooled enough to release, or the latch motor itself has failed. mediumintermediate	medium	intermediate
F1 E0	F1E0 on a KitchenAid oven means the control board's EEPROM (Electrically Erasable Programmable Read-Only Memory) has failed. The EEPROM stores the oven's calibration data, model configuration, and operational parameters. highadvanced	high	advanced
F1 E1	F1E1 on a KitchenAid oven indicates a communication fault within the control board or between the control board and a secondary board (on double oven models). The main board cannot verify its internal state. highadvanced	high	advanced

Refrigerator1 codes

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Code	Issue	Severity	Difficulty
HUB	KitchenAid refrigerator error codes are based on the Whirlpool platform. The most common code is PO (Power Outage), followed by temperature and ice maker related faults. lowbeginner	low	beginner

Miele

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Dishwasher9 codes

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Code	Issue	Severity	Difficulty
F70	The AquaStop float switch in the machine's base pan detected water, triggering the anti-flood system and closing the inlet hose solenoid valve highintermediate	high	intermediate
F78	The main circulation pump motor drew abnormal current or failed to reach operating speed, indicating a blocked impeller or failed motor winding highintermediate	high	intermediate
F11	The dishwasher could not drain water completely within the cycle's drain timeout; the drain pump detected an obstruction or a pump failure moderatebeginner	moderate	beginner
F14	The water intake system failed to deliver water to the wash cabinet within the expected fill timeout; the inlet valve, AquaStop hose solenoid, or water supply is the source moderatebeginner	moderate	beginner
F24	The wash water did not reach the programmed temperature within the allotted heating time, indicating a failed heating element, NTC temperature sensor, or relay on the control board moderateintermediate	moderate	intermediate
F51	The control unit detected a fault in the circulation system - either insufficient water pressure during the wash phase or an anomaly in the pump's operating parameters moderateintermediate	moderate	intermediate
F13	The water softener salt system has an issue - either the salt container is empty, the lid is not properly sealed, or the salt sensor has failed lowbeginner	low	beginner
HUB	Reference directory for all Miele dishwasher fault and error codes across G 4000, G 5000, G 6000, and G 7000 series models lowbeginner	low	beginner
RESET	Procedure for canceling an active fault, clearing error codes from memory, and restoring normal operation on Miele G series dishwashers lowbeginner	low	beginner

Dryer5 codes

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Code	Issue	Severity	Difficulty
NOISE	Bearing, Belt, and Heat Pump Sounds mediumintermediate	medium	intermediate
NOT-HEATING	Heat Pump vs Vented Dryer Diagnosis mediumintermediate	medium	intermediate
F066	The dryer's temperature control circuit detected a heating fault - either the heating element failed to reach target temperature or the overtemperature thermal cutout tripped due to restricted airflow moderateintermediate	moderate	intermediate
HUB	Reference directory for all Miele tumble dryer fault codes across T1 (heat pump), T Classic (vented/condenser), and older T series models lowbeginner	low	beginner
RESET	Procedure for canceling an active fault and restoring normal operation on Miele T Classic and T1 tumble dryers lowbeginner	low	beginner

Washer8 codes

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Code	Issue	Severity	Difficulty
NOT-DRAINING	F11 Error, Pump Filter, and Drain Hose Fix mediumintermediate	medium	intermediate
NOT-SPINNING	Honeycomb Drum, Motor, and Drain Check mediumintermediate	medium	intermediate
SMELLS	Honeycomb Drum Cleaning and Mold Prevention mediumintermediate	medium	intermediate
F11	The washing machine did not detect sufficient water flow into the drum within the fill timeout; the AquaStop hose, supply valve, or inlet valve is the source moderatebeginner	moderate	beginner
F138	The drum failed to reach or maintain the programmed spin speed within the expected time; the motor, bearings, control board, or mechanical drive system is the source moderateintermediate	moderate	intermediate
F63	The door lock assembly did not confirm a locked state within the expected timeout before or during the cycle, or the lock failed to release at cycle end moderatebeginner	moderate	beginner
HUB	Reference directory for all Miele washing machine fault codes across W1, W Classic, and older W series models lowbeginner	low	beginner
RESET	Procedure for canceling an active fault and clearing error codes on Miele W1 and W Classic washing machines lowbeginner	low	beginner

Speed-queen

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Dryer7 codes

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Code	Issue	Severity	Difficulty
NOISE	Commercial Bearing, Belt, and Blower Sounds mediumintermediate	medium	intermediate
NOT-HEATING	Commercial-Grade Thermal Fuse and Element mediumintermediate	medium	intermediate
NOT-SPINNING	Belt, Idler, and Motor Diagnosis mediumintermediate	medium	intermediate
ER-RO	The dryer's airflow monitoring circuit detected insufficient exhaust air movement, indicating the exhaust path is blocked or restricted moderatebeginner	moderate	beginner
N5	The outlet thermistor (exhaust temperature sensor) is reading outside the expected range, indicating a failed sensor or an open/short circuit in the sensor wiring moderateintermediate	moderate	intermediate
HUB	Reference directory for all Speed Queen dryer fault codes and error codes across residential and commercial dryer models lowbeginner	low	beginner
RESET	Procedure for clearing fault codes and restoring normal operation on Speed Queen residential and commercial dryer models lowbeginner	low	beginner

Washer10 codes

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Code	Issue	Severity	Difficulty
NOT-DRAINING	Commercial Pump and Drain System Fixes mediumintermediate	medium	intermediate
NOT-SPINNING	Commercial-Grade Motor and Clutch Diagnosis mediumintermediate	medium	intermediate
65	The motor control circuit detected a torque overload or abnormal current draw from the main drive motor, indicating the motor cannot reach or maintain target speed highintermediate	high	intermediate
BLINKING	LED indicator lights blinking in a pattern to communicate a fault code on older Speed Queen models that lack an LCD display moderatebeginner	moderate	beginner
L1	The control board detected AC line voltage below the minimum operating threshold, typically below 95V AC on a nominal 120V circuit moderatebeginner	moderate	beginner
LID-LOCK	The control board did not receive a confirmation signal from the lid lock assembly within the expected timeout before starting or during a spin cycle moderatebeginner	moderate	beginner
NF	The washer did not detect the required water level within the fill timeout period; the control board aborted the cycle and logged a No Fill fault moderatebeginner	moderate	beginner
COMMERCIAL	Reference directory for all Speed Queen commercial washer error codes on HC, SC, and heavy-duty laundromat-grade models lowintermediate	low	intermediate
HUB	Reference directory for all Speed Queen washer error codes across top-load and front-load residential and commercial models lowbeginner	low	beginner
RESET	Procedure for clearing error codes and restoring normal operation on Speed Queen top-load and front-load washers lowbeginner	low	beginner

Rinnai

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Waterheater16 codes

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Code	Issue	Severity	Difficulty
NO-HOT-WATER	Error Code, Flow, and Flame Fixes mediumintermediate	medium	intermediate
14	The one-time thermal fuse (thermal cutoff) protecting the heat exchanger has blown, indicating the exchanger reached a dangerously high temperature. The unit is locked out until the fuse is replaced. criticaladvanced	critical	advanced
10	The unit detected that no gas was available or the gas valve was unable to open when a heating demand was made. highbeginner	high	beginner
11	The unit attempted to ignite 3 times and no flame was detected by the flame rod. The burner has locked out as a safety measure. highintermediate	high	intermediate
12	The burner successfully ignited but the flame extinguished unexpectedly during a heating cycle. The unit shut down to prevent unsafe operation. highintermediate	high	intermediate
15	The burner has been locked out following an abnormal combustion sequence during ignition. The unit detected an irregularity during the ignition attempt and shut down as a safety measure. highintermediate	high	intermediate
17	The gas valve was unable to modulate or operate correctly as commanded by the control board. An abnormal voltage or position was detected during the heating cycle. highadvanced	high	advanced
32	The outlet water temperature sensor detected that the water leaving the heat exchanger exceeded the maximum safe limit. The unit shut down to prevent scalding or heat exchanger damage. highintermediate	high	intermediate
52	The modulating gas valve was unable to reach or hold the target firing position commanded by the PCB. The valve's modulation mechanism has failed to operate correctly. highadvanced	high	advanced
55	The unit detected combustion that is outside normal operating parameters. This can mean incomplete combustion, combustion instability, or an air-to-fuel ratio that the sensors have flagged as abnormal. highintermediate	high	intermediate
61	The combustion fan motor has failed to start or stopped operating completely. The unit cannot initiate or sustain a heating cycle without a functioning blower. highadvanced	high	advanced
63	The combustion fan (blower) did not reach the required speed within the expected time, or the fan speed sensor reported an abnormal reading during startup or operation. highintermediate	high	intermediate
79	The sensor measuring the temperature of combustion air entering the unit has failed or is reading outside its expected range. moderateintermediate	moderate	intermediate
25	The bath fill sequence did not complete within the programmed time limit. This code only appears on Rinnai models equipped with the built-in bath fill or ThermaCirc recirculation feature. lowbeginner	low	beginner
HUB	Reference hub covering all Rinnai RU and V series tankless water heater error codes with diagnosis and repair guidance. lowbeginner	low	beginner
RESET	Step-by-step instructions for performing soft, hard, and factory resets on Rinnai tankless water heaters to clear error codes and restore normal operation. lowbeginner	low	beginner

Generac

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Generator15 codes

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Code	Issue	Severity	Difficulty
0	Code 0 indicates the controller lost communication with one or more sensors or modules. This is a general communication fault similar in concept to a watchdog timeout. mediumintermediate	medium	intermediate
1501	Code 1501 specifically indicates the oil pressure sensor circuit has a fault - either open circuit, short circuit, or reading out of expected range. Unlike 1505 which indicates actual low oil pressure, 1501 is a sensor circuit problem. mediumintermediate	medium	intermediate
2400	Code 2400 indicates the 12V starting battery voltage has dropped below the minimum threshold. Without adequate battery voltage, the generator cannot crank the engine. mediumbeginner	medium	beginner
HUB	Complete reference for all Generac standby generator alarm and fault codes. Generac uses numeric error codes displayed on the Evolution or Nexus controller panel, with codes ranging from 0 to 2800+. mediumbeginner	medium	beginner
1505	Code 1505 indicates the engine oil pressure dropped below the safe operating threshold while the engine was running. Generac's controller immediately shuts down the engine to prevent catastrophic bearing damage. This is a critical safety shutdown. criticalintermediate	critical	intermediate
2099	Code 2099 means engine speed exceeded safe limits. The governor lost control and engine RPM rose above the maximum threshold, triggering immediate shutdown. criticaladvanced	critical	advanced
1100	Code 1100 means the controller lost the RPM signal from the engine speed sensor while the engine was running. Without RPM feedback, the controller cannot regulate engine speed and shuts down as a safety measure. highintermediate	high	intermediate
1300	Code 1300 means the generator detected an electrical overload exceeding its rated capacity. The controller shuts down to prevent damage to the alternator and wiring. highintermediate	high	intermediate
1600	Code 1600 means engine speed deviated significantly from the target 3600 RPM. The governor system could not maintain proper speed under the current load conditions. highintermediate	high	intermediate
1603	Code 1603 indicates the controller detected excessive current draw from the governor stepper motor (iSMA). The motor is either shorted or mechanically jammed. highintermediate	high	intermediate
1900	Code 1900 indicates the controller lost the governor position feedback signal. The controller cannot confirm the throttle position. highintermediate	high	intermediate
1902	Code 1902 indicates the electronic governor actuator (also called the stepper motor or iSMA - intelligent Speed Management Actuator) has failed to respond to the controller's speed commands. The governor controls engine speed by adjusting the throttle. highintermediate	high	intermediate
2100	Code 2100 means engine speed dropped below acceptable threshold while running. The engine is bogging down under load. highintermediate	high	intermediate
2780	Code 2780 indicates the ignition system is not producing adequate spark. The controller detected cranking without successful ignition events. highintermediate	high	intermediate
2800	Code 2800 on a Generac generator means the engine cranked for the maximum allowed time (typically 10-12 seconds per attempt, 6 attempts) without achieving a stable running speed. The controller detected cranking RPM but never saw running RPM, indicating a fuel delivery or ignition problem. highintermediate	high	intermediate

Thermador

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Dishwasher8 codes

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Code	Issue	Severity	Difficulty
E15	Water has leaked into the base pan beneath the dishwasher tub. The float switch in the base pan has risen, triggering AquaStop flood protection and locking the machine from operating. criticalintermediate	critical	intermediate
E09	The dishwasher's heating system has failed to raise the water to the required temperature. Either the heating element or the NTC temperature sensor has malfunctioned. moderateintermediate	moderate	intermediate
E24	The dishwasher failed to drain within the allotted timeout period. Water remains in the tub at the end of a drain cycle. moderatebeginner	moderate	beginner
E25	A foreign object (bone fragment, glass shard, food debris) is physically jamming the drain pump impeller, preventing water from being pumped out of the tub. moderatebeginner	moderate	beginner
E22	The triple filter assembly is heavily clogged, preventing water from recirculating properly through the wash system. lowbeginner	low	beginner
HUB	Complete reference guide for all Thermador dishwasher E-series error codes, covering the DWHD440MFP, DWHD640JFP, DWHD640ZFP, DWHD660ZFP, and DWHD771WFP Sapphire series models. lowbeginner	low	beginner
RESET	Performing a soft or hard reset on a Thermador dishwasher clears active error codes, cancels stuck programs, and restores normal operation after a fault has been resolved. lowbeginner	low	beginner
SA-NL	Both the SA (Salt) and NL (rinse aid) indicators are active simultaneously, signaling that the water softener salt reservoir and the rinse aid dispenser both need to be refilled. lowbeginner	low	beginner

Oven6 codes

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Code	Issue	Severity	Difficulty
F34	The control board has detected a relay failure - typically the bake or broil relay has failed to open or close correctly. The board can no longer safely control the heating elements. highintermediate	high	intermediate
F64	The primary control board has detected a definitive internal fault and cannot continue operating. F64 is more specific than F7 and less likely to be a transient fault. highintermediate	high	intermediate
F7	The control board has detected an internal fault or a door switch anomaly. F7 can be a transient fault that clears on its own or a sign of a failing door latch switch or control board. highintermediate	high	intermediate
F24	The oven's RTD temperature probe (Resistance Temperature Detector) is reading outside the expected range or has an open circuit, causing the control board to lose the ability to monitor oven temperature. moderatebeginner	moderate	beginner
PROBE	The oven's RTD temperature probe is disconnected or has failed. PROBE displays on newer Thermador models with full LCD panels; older models show F24 for the same condition. moderatebeginner	moderate	beginner
HUB	Complete reference guide for all Thermador oven F-codes and PROBE errors, covering wall ovens and ranges including the ME, MED, MES, POD, and PRD series. lowbeginner	low	beginner

Goodman

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Furnace14 codes

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Code	Issue	Severity	Difficulty
E2	The rollout limit switch has tripped, indicating that flames have exited the combustion chamber and moved toward areas they should not reach. criticaladvanced	critical	advanced
7P1	The draft inducer (combustion air blower) motor failed to start, stalled, or did not reach operating speed within the allowed time. highintermediate	high	intermediate
9H	The high-stage pressure switch opened during operation, indicating that induced draft pressure is too high, too low, or that the secondary heat exchanger is restricted on condensing models. highintermediate	high	intermediate
E3	The draft inducer blower failed to prove operation during the pre-purge sequence, either by not reaching speed or not satisfying the pressure switch within the allowed time. highintermediate	high	intermediate
E5	A general pressure switch circuit fault - the switch circuit is either open when it should be closed, short-circuited, or the switch failed to transition correctly during the startup sequence. highintermediate	high	intermediate
EE3	The furnace has experienced three consecutive F01-type ignition failures in a row without a successful heat cycle between them, triggering a deeper lockout state. highintermediate	high	intermediate
EE5	The furnace has failed ignition five consecutive times without any successful heat cycle, entering the deepest safety lockout state. A 3-second power reset hold is required to clear. highintermediate	high	intermediate
F01	The furnace attempted ignition three times and failed to detect a flame each time, triggering a safety lockout. highintermediate	high	intermediate
1DL	The control board's internal watchdog timer has tripped, indicating a communication error, internal board fault, or an abnormal operating condition that the main processor could not resolve. moderateadvanced	moderate	advanced
E1C	The flame sensor is detecting a flame signal when no call for heat is active and no ignition sequence has been initiated - an unexpected and potentially dangerous condition. moderateintermediate	moderate	intermediate
EAF	The flame sensor is reading a microamp signal that falls outside the acceptable range during a heat cycle - either too weak to confirm a stable flame or erratic. moderateintermediate	moderate	intermediate
F02	The pressure switch is detecting pressure (closed/triggered) before the inducer motor has started, which indicates a condensate drain backup, kinked hose, or failed switch. moderateintermediate	moderate	intermediate
HUB	Complete reference for all Goodman furnace LED flash codes and alphanumeric fault codes displayed on the control board. lowbeginner	low	beginner
RESET	Step-by-step instructions for performing soft resets, hard resets, and manual switch resets on Goodman furnaces to clear LED fault codes after diagnosing and fixing the root cause. lowbeginner	low	beginner

Noritz

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Waterheater14 codes

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Code	Issue	Severity	Difficulty
NO-HOT-WATER	Error 11, 12, 90 Diagnosis mediumintermediate	medium	intermediate
14	The thermal fuse, a one-time safety device in the heat exchanger circuit, has blown due to excessive heat. The unit will not operate until the fuse is physically replaced by a technician. criticaladvanced	critical	advanced
11	The unit attempted ignition three times and could not establish a flame. No flame signal was detected by the flame rod during any attempt. highintermediate	high	intermediate
12	The flame rod detected that the burner flame was lost after successful ignition. The unit established a flame but it extinguished before the call for hot water ended. highintermediate	high	intermediate
16	The gas pressure sensor or combustion monitoring system detected that gas supply pressure is outside the acceptable operating range, or that combustion is abnormal due to pressure issues. highintermediate	high	intermediate
20	The combustion fan (blower motor) has failed, stalled, or cannot reach the required operating speed. The unit cannot run without the fan providing combustion air and evacuating exhaust gases. highadvanced	high	advanced
29	The heat exchanger temperature sensor detected a temperature exceeding the safe operating threshold (160 to 180 degrees F). The unit shut down to prevent damage. highintermediate	high	intermediate
90	The combustion sensor detected abnormal combustion. Most commonly caused by exhaust gases recirculating back into the air intake, producing oxygen-depleted combustion air. highintermediate	high	intermediate
IGN-FAILURE	The Noritz water heater fails to ignite when hot water is demanded but the controller display does not show a numeric error code. This is a symptom guide for diagnosing ignition failure without a code. highintermediate	high	intermediate
CONDENSATE-DRAIN	Condensing Noritz units (NRCP series) extract extra heat from flue gases, producing acidic condensate that must drain continuously. A blocked or frozen condensate drain causes unit shutdown and can trigger Code 29. moderatebeginner	moderate	beginner
PRIORITY-LIGHT	The Priority indicator light on the Noritz remote controller is flashing or illuminated unexpectedly. Depending on the model and installation, this can indicate the unit is designated as the priority unit in a multi-unit installation, a service reminder is due, or an active fault needs attention. moderatebeginner	moderate	beginner
TROUBLESHOOTING	Catch-all troubleshooting guide covering the most common Noritz tankless water heater problems including no hot water, error codes, temperature issues, ignition problems, and condensate faults. moderatebeginner	moderate	beginner
HUB	Master reference for all Noritz tankless water heater error codes across the NR and NRCP condensing series. lowbeginner	low	beginner
RESET	Step-by-step guide for performing a soft reset and a hard reset on Noritz NR and NRCP series tankless water heaters to clear error codes and restore operation. lowbeginner	low	beginner

Hp

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Printer12 codes

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Code	Issue	Severity	Difficulty
BLINK-FLASH	HP printers use LED blink patterns to communicate status and errors, especially on models without LCD displays. Different combinations of power, ink, and paper LEDs indicate specific conditions. mediumbeginner	medium	beginner
E0	E0 on HP DeskJet and ENVY printers indicates the ink carriage is jammed and cannot move freely along the carriage rail. The carriage holds the ink cartridges and must slide left-right during printing. HP DeskJet series has a specific plastic guide rail that cracks and causes the carriage to bind - not just paper obstruction. mediumbeginner	medium	beginner
E3	E3 on HP printers is a carriage jam variant, similar to E0 but typically triggered during a different phase of the carriage movement. On some models, E3 specifically indicates the carriage cannot reach the home position. mediumbeginner	medium	beginner
EBS00P0013	Error EBS00P0013 on HP OfficeJet Pro printers means the printhead is not being detected by the printer. HP OfficeJet Pro uses a combined ink-and-printhead cartridge system on some models, while others have a separate printhead unit. This error is HP OfficeJet Pro specific and is often fixed by simply reseating the printhead or cartridge. mediumbeginner	medium	beginner
HUB	Complete reference for HP printer error codes covering DeskJet, OfficeJet, OfficeJet Pro, ENVY, and LaserJet series. HP uses alphanumeric error codes (E0, E2, E3, E4), hex codes (0x97), and descriptive error states. mediumbeginner	medium	beginner
POWER-BLINK	A blinking power button on an HP printer indicates the printer is in a specific state: processing, error, or attention needed. The blink speed and pattern vary by model and condition. mediumbeginner	medium	beginner
TROUBLESHOOT	Comprehensive troubleshooting guide for HP printers covering the most common issues: not printing, offline, paper jams, error codes, and connectivity problems across DeskJet, OfficeJet Pro, ENVY, and LaserJet models. mediumbeginner	medium	beginner
0x97	Error 0x97 on HP OfficeJet Pro printers is classified as a catastrophic internal failure. However, HP issued firmware updates to fix this error on many affected models. This is NOT always a hardware death sentence despite the severe name. highintermediate	high	intermediate
BLUE-FLASH	A flashing blue light on an HP printer indicates Wi-Fi activity. The blue LED is the wireless indicator and shows connection status, pairing mode, or connection attempts. lowbeginner	low	beginner
E2	E2 on HP printers indicates the paper in the tray does not match the paper size selected in the print job. The printer detected paper but it is the wrong size for the current job. lowbeginner	low	beginner
E4	E4 on HP printers indicates a paper jam has been detected. Paper is stuck inside the printer and must be removed before printing can resume. lowbeginner	low	beginner
ERROR-STATE	HP Printer Error State in Windows means the Windows print system cannot communicate properly with the printer. This is almost always a software or driver issue, NOT a hardware problem. The fix involves restarting the print spooler service and updating the printer driver. lowbeginner	low	beginner

Mitsubishi

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Minisplit11 codes

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Code	Issue	Severity	Difficulty
BLINKING-LIGHT	Causes and Fixes mediumintermediate	medium	intermediate
LEAKING	Causes and Fixes mediumintermediate	medium	intermediate
NOT-COOLING	Outdoor Unit, Refrigerant, and Sensor Fixes mediumintermediate	medium	intermediate
NOT-HEATING	Causes and Fixes mediumintermediate	medium	intermediate
E6	The indoor air handler and outdoor unit have lost the data communication signal that coordinates their operation. highintermediate	high	intermediate
P4	The condensate drain pan under the indoor unit's evaporator coil has filled with water, indicating the drainage system is blocked or failing. highbeginner	high	beginner
P5	The drain float switch inside the indoor unit has been triggered due to water accumulation in the drain system, indicating drainage cannot keep pace with condensate production. highintermediate	high	intermediate
P6	The current transformer (CT) sensor on the outdoor unit has detected an abnormal current condition - either the sensor itself has failed or the compressor is drawing abnormal current. highadvanced	high	advanced
P8	The indoor coil temperature has dropped below the safe operating threshold, triggering freeze protection. This is commonly caused by low refrigerant charge or severely restricted airflow. highadvanced	high	advanced
E9	The condensate drain pump has failed, is clogged, or the float switch that monitors the pump has detected a drainage failure. moderateintermediate	moderate	intermediate
HUB	Hub page covering all Mitsubishi Electric mini-split error codes for MSZ and MXZ series heat pumps. lowbeginner	low	beginner

Traeger

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Pelletgrill11 codes

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Code	Issue	Severity	Difficulty
AUGER-NOT-TURNING	Jammed Pellets, Motor, and Shear Pin Fix mediumintermediate	medium	intermediate
Er1	Error 1 on a Traeger pellet grill means the RTD (Resistance Temperature Detector) probe circuit is open or reading out of range. The controller cannot read the grill temperature. mediumbeginner	medium	beginner
Er40	Error 40 (Er40) on a Traeger pellet grill means the grill failed to reach the minimum temperature within the startup window. The firepot did not ignite successfully. mediumbeginner	medium	beginner
FLAMEOUT	Wind, Pellets, Fan, and Firepot Solutions mediumintermediate	medium	intermediate
HUB	Complete reference for all Traeger pellet grill error codes. Traeger WiFIRE and D2 controller grills display alphanumeric codes including LEr (low temperature), HEr (high temperature), Er1/Er2 (sensor faults), and Er40 (firepot ignition failure). mediumbeginner	medium	beginner
LEr	LEr on a Traeger pellet grill means Low Temperature Error - the grill temperature dropped more than 125F below the set temperature for over 10 minutes. The controller shut down the grill to prevent unburned pellets from accumulating in the firepot. mediumbeginner	medium	beginner
LOW-TEMP	The Low Temp Error on Traeger grills is the display name for the LEr error code. It means the grill temperature dropped significantly below the set temperature. mediumbeginner	medium	beginner
NOT-HEATING	A Traeger pellet grill that is not heating up can be caused by a dirty firepot, burned-out igniter, empty hopper, jammed auger, damp pellets, or cold weather. This is the #1 most searched Traeger problem. mediumbeginner	medium	beginner
NOT-SMOKING	Smoke Setting, Temperature, and Wood Pellet Guide mediumintermediate	medium	intermediate
TEMP-SWINGS	Why Your Grill Fluctuates and How to Fix It mediumintermediate	medium	intermediate
HEr	HEr on a Traeger pellet grill means High Temperature Error - the grill temperature exceeded the set temperature by more than 125F. This is a safety shutdown to prevent damage and fire risk. highbeginner	high	beginner

Liftmaster

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Garagedoor11 codes

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Code	Issue	Severity	Difficulty
1-2	The motor's built-in thermal protector has tripped due to excessive heat from overuse or from working too hard against a binding door. highbeginner	high	beginner
1-4	The logic board (main control board) inside the motor unit has experienced an internal failure and needs to be replaced. highadvanced	high	advanced
4-1	The sensor wires are reversed at the logic board terminals, or there is an open circuit (broken wire) somewhere in the sensor wiring. highintermediate	high	intermediate
4-2	The safety photo eye sensors at the bottom of the door tracks are not properly aligned or something is obstructing the beam between them. highbeginner	high	beginner
4-3	The door failed to reverse when it should have during a safety reversal test, or the sensitivity is set too high and the reversal force is insufficient. highintermediate	high	intermediate
4-6	The door has traveled to its limit but the opener cannot confirm it reached the open or close position, or travel limits need to be set or reset. highintermediate	high	intermediate
1-6	The trolley (carriage) has been disconnected from the drive system, or the opener is in a factory default state after a hard reset. moderatebeginner	moderate	beginner
4-4	An obstruction is blocking the sensor beam path, or the sensor lens is dirty enough to prevent the beam from reaching the receiver. moderatebeginner	moderate	beginner
1-5	A remote control button or keypad key is stuck in the pressed position, or a button was held down too long during a programming attempt. lowbeginner	low	beginner
10 Flashes	Lock Mode is active on the opener. All remote controls and keypads are disabled. Only the wall-mounted door control button works. lowbeginner	low	beginner
HUB	Hub page covering all LiftMaster garage door opener LED blink fault codes. lowbeginner	low	beginner

Navien

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Waterheater10 codes

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Code	Issue	Severity	Difficulty
NO-HOT-WATER	Error Codes and Flow Sensor Fix mediumintermediate	medium	intermediate
E001	The unit failed to establish a flame on the first ignition attempt. E001 is an early-stage ignition fault that precedes E003, which fires after all 3 attempts fail. highbeginner	high	beginner
E003	The unit attempted to ignite 3 times and failed to detect a flame on any attempt. The gas valve, igniter, and flame rod are the primary components to inspect. highintermediate	high	intermediate
E012	The burner flame was established successfully but was lost while the unit was actively heating water. This is distinct from E003, which means ignition never occurred at all. highintermediate	high	intermediate
E110	The unit detected an exhaust or air supply restriction. E110-01 indicates an external vent termination blockage; E110-02 indicates an internal air/exhaust pressure imbalance. highbeginner	high	beginner
E762	The outlet water temperature exceeded 190 degrees Fahrenheit (87.7 degrees Celsius), triggering a high-limit safety lockout. The unit shuts off to prevent scalding and thermal damage to components. highintermediate	high	intermediate
E773	The exhaust gas temperature exceeded the safe thermal limit. A thermal fuse or high-limit sensor in the exhaust path tripped due to excessive heat, causing a safety lockout. highintermediate	high	intermediate
E302	The PCB detected a flame signal from the flame rod when the gas valve is confirmed closed and the unit should be off. This is a safety lockout that prevents the unit from operating until the false signal is resolved. moderateintermediate	moderate	intermediate
HUB	Reference hub covering all Navien NPE and NCB series error codes with diagnosis and repair guidance. lowbeginner	low	beginner
RESET	Guide covering all three reset methods for Navien NPE and NCB series: soft reset via Info button, hard reset via power cycle, and factory reset via controller menu. lowbeginner	low	beginner

Keurig

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Coffeemaker10 codes

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Code	Issue	Severity	Difficulty
LEAKING	Keurig Leaking Water From Bottom, Top, or Into Cup Holder mediumintermediate	medium	intermediate
NOT-BREWING	Pump, Needle, Scale, and K-Cup Problems mediumintermediate	medium	intermediate
NOT-HOT	Heating Element, Descale, and Cup Size Fix mediumintermediate	medium	intermediate
SHORT-CUP	Scale Buildup and Needle Clog Fixes mediumintermediate	medium	intermediate
WONT-TURN-ON	Power Supply, Thermal Cutoff, and Reset Fix mediumintermediate	medium	intermediate
ADD-WATER	'Add Water' on a Keurig with a full water reservoir means the water level sensor is not detecting the water. The reservoir may not be seated properly or the sensor has a malfunction. lowbeginner	low	beginner
DESCALE-LIGHT	The Keurig descale light staying on after descaling means the reset sequence was not completed. Each Keurig model has a specific button combination to clear the descale indicator after the descaling process is finished. lowbeginner	low	beginner
ERROR-2	Error 2 on Keurig K-Supreme, K-Supreme Plus, and K-Cafe Smart models means the water flow sensor detected insufficient water passing through the brew system. Water is either blocked or flowing too slowly. lowbeginner	low	beginner
HUB	Complete guide to Keurig coffee maker error codes and messages across K-Supreme, K-Elite, K-Cafe, K-Mini, and 2.0 models. Keurig uses numeric codes, text messages, and descale lights to communicate faults. lowbeginner	low	beginner
PRIME	'Prime' on a Keurig means the internal pump cannot pull water from the reservoir into the brew system. The pump is trying to draw water but not getting it. lowbeginner	low	beginner

Hayward

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Poolheater10 codes

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Code	Issue	Severity	Difficulty
NOT-HEATING	LO, HI, IF, and Bypass Valve Fixes mediumintermediate	medium	intermediate
10	The heater failed to establish or sustain a flame after multiple ignition attempts and has entered a hard lockout. highintermediate	high	intermediate
AO	The combustion air pressure switch did not close during startup, indicating insufficient combustion air flow or a restricted vent. highintermediate	high	intermediate
BO	The combustion blower motor or combustion chamber has exceeded safe temperature limits, triggering the thermal overheat safety lockout. highintermediate	high	intermediate
IF	Ignition Failure - the heater attempted to light the burner multiple times and could not establish or hold a flame. highintermediate	high	intermediate
LO	Water flow through the heater has fallen below the minimum required threshold, triggering a safety lockout to protect the heat exchanger. highbeginner	high	beginner
A1	The water temperature sensor (thermostat sensor) is reading outside its valid range, indicating a failed sensor, a wiring fault, or actual water temperature outside operating limits. moderateintermediate	moderate	intermediate
BD	A blower drain or combustion air pressure fault, most commonly caused by a blocked condensate drain on condensing H-Series models or a combustion air pressure switch fault. moderateintermediate	moderate	intermediate
CE	A communication failure between the heater control board and the display panel, remote controller, or pool automation system. moderateadvanced	moderate	advanced
HUB	Reference guide covering all Hayward H-Series pool heater error codes and fault indicators. lowbeginner	low	beginner

Pentair

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Poolheater10 codes

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Code	Issue	Severity	Difficulty
NOT-HEATING	E05, E01, and Flow Switch Diagnosis mediumintermediate	medium	intermediate
E05	The pressure switch did not close during the heat cycle, indicating insufficient water flow or a failed switch. highintermediate	high	intermediate
ERR AFS	The combustion air flow switch (air pressure switch) did not close, indicating the combustion blower did not reach adequate speed or air flow is restricted. highintermediate	high	intermediate
ERR IGN	The heater attempted ignition multiple times and failed to establish or hold a flame, triggering a hard lockout. highintermediate	high	intermediate
ERR PS	The pressure switch fault code on IntelliFlo-integrated and newer digital-display Pentair models indicating insufficient water flow through the heater. highintermediate	high	intermediate
NO-POWER	The heater shows no display, no response to controls, or will not begin a heat cycle despite power appearing to be available. moderatebeginner	moderate	beginner
SERVICE-HEATER	The SERVICE HEATER indicator has illuminated, signaling either an annual maintenance interval has been reached or an active fault is present. moderatebeginner	moderate	beginner
TROUBLESHOOTING	Symptom-based overview guide covering the six most frequent Pentair MasterTemp pool heater failures and how to diagnose each one. moderatebeginner	moderate	beginner
HUB	Reference guide covering all Pentair MasterTemp pool heater error codes and fault indicators. lowbeginner	low	beginner
RESET	Procedure for performing a soft reset, hard power reset, and service interval reset on Pentair MasterTemp pool heaters to clear fault codes. lowbeginner	low	beginner

Wolf

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Oven9 codes

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Code	Issue	Severity	Difficulty
Error 40	The oven temperature probe is reading outside its expected range, indicating the probe has failed, its connector is loose, or the control board is not reading the probe signal correctly. highintermediate	high	intermediate
NOT-WORKING	General catch-all diagnostic guide for a Wolf range or oven with complete non-function - no power, no heating, or gas burners failing to ignite. highbeginner	high	beginner
UIM-NETWORK-FAULT	The User Interface Module (UIM) touchpad and display has lost its network communication link to the main control board. highintermediate	high	intermediate
COUNTERTOP-ISSUES	Troubleshooting guide for Wolf Gourmet countertop ovens (WGCO100S and WGCO150S) which are distinct products from Wolf professional ranges and have their own set of common failure modes. moderatebeginner	moderate	beginner
TEMPERATURE-PROBLEM	The Wolf oven's actual cooking temperature is significantly different from the set temperature, causing food to cook incorrectly. moderateintermediate	moderate	intermediate
TROUBLESHOOTING	Comprehensive troubleshooting guide covering the seven most common Wolf range and oven problems with professional-level diagnostic steps. moderatebeginner	moderate	beginner
BEEPING	Guide to interpreting different beeping patterns from a Wolf range or oven and identifying whether they indicate normal operation notifications or active fault conditions. lowbeginner	low	beginner
HUB	Hub page covering all Wolf range and oven error codes and fault conditions for DF series and built-in models. lowbeginner	low	beginner
RESET	Step-by-step guide for performing soft and hard resets on Wolf DF series and built-in ovens to clear error codes and restore normal operation. lowbeginner	low	beginner

Electrolux

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Oven1 codes

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Code	Issue	Severity	Difficulty
F14	F14 on an Electrolux oven indicates the control board's EEPROM has failed. Electrolux uses the same error code convention as Frigidaire (Electrolux owns Frigidaire). highadvanced	high	advanced

Washer8 codes

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Code	Issue	Severity	Difficulty
NOT-DRAINING	Pump Filter, E21 Error, and AquaStop Fix mediumintermediate	medium	intermediate
NOT-SPINNING	Motor, Belt Tensioner, and E52 Error Fix mediumintermediate	medium	intermediate
E13	The flood sensor in the base pan of the washer has detected standing water, triggering the overflow protection system. The machine immediately stops filling and activates the drain pump to protect your floor. criticalintermediate	critical	intermediate
E11	The washer did not reach its required water level within the allowed fill time. The control board detected a fill timeout and stopped the cycle to prevent an indefinitely running water valve. highbeginner	high	beginner
E21	The washer failed to drain the water from the tub within the allowed time. The drain pump ran but could not remove water fast enough, indicating a blockage, a restriction in the drain path, or a failing pump. highintermediate	high	intermediate
E35	The water level pressure sensor (pressure switch) is reading outside its expected range. The control board cannot accurately determine how much water is in the tub, causing the machine to stop as a safety measure. highintermediate	high	intermediate
E41	The door lock actuator failed to engage (lock) or disengage (unlock) within the expected time. The washer will not start a cycle without a confirmed door lock signal, and cannot end a cycle without a confirmed unlock. moderateintermediate	moderate	intermediate
HUB	Reference hub covering all fault codes displayed on Electrolux EFLS series front-load washers. lowbeginner	low	beginner

Solaredge

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Inverter8 codes

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Code	Issue	Severity	Difficulty
18XB5	The inverter has detected an internal hardware failure, most commonly in the power conversion board or a critical internal component. highadvanced	high	advanced
18XB7	The AC grid relay or contactor inside the inverter failed to close or open correctly during the grid connection sequence. highadvanced	high	advanced
18XF5	The inverter has detected that DC current is being injected into the AC grid above the allowed limit. This is a grid protection fault that prevents DC contamination of the AC network. highadvanced	high	advanced
03X9A	The inverter cannot communicate with the SolarEdge monitoring server, or there is a communication fault between the inverter and its power optimizers. moderateintermediate	moderate	intermediate
03X9B	One or more power optimizers on the solar panels have lost communication with the inverter. The affected optimizers are not reporting data. moderateintermediate	moderate	intermediate
2XB	The AC grid frequency has deviated outside the acceptable range (typically 47-52 Hz for 50 Hz grids or 57-62 Hz for 60 Hz grids). The inverter disconnected from the grid as required by safety and utility regulations. moderateintermediate	moderate	intermediate
3X2	The AC grid voltage at the inverter connection point has exceeded or fallen below the acceptable range. The inverter has disconnected from the grid as required by safety and utility interconnect standards. moderateintermediate	moderate	intermediate
HUB	Hub page covering all SolarEdge SE series inverter fault codes and their diagnostic paths. lowbeginner	low	beginner

Carrier

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Furnace8 codes

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Code	Issue	Severity	Difficulty
13	Code 13 on a Carrier furnace means the high limit switch or a secondary safety limit (rollout switch) has tripped. These switches are thermal cutoffs that open when the furnace detects dangerously high temperatures inside the heat exchanger or combustion chamber. The furnace shuts down completely to prevent damage or fire. highintermediate	high	intermediate
14	Code 14 on a Carrier furnace is an extended ignition lockout triggered by repeated failed ignition attempts. The control board has tried to light the furnace multiple times (typically 3 cycles), each time resulting in Code 34 (ignition proving failure), and has now locked out entirely. The furnace will not attempt another ignition cycle until it is manually reset. highintermediate	high	intermediate
3 Short 3 Long	Code 33 on a Carrier furnace means the pressure switch circuit is open. The pressure switch is a safety device that verifies the inducer motor has created enough negative pressure (draft) before allowing the gas valve to open. When the switch stays open during a heating cycle, the furnace shuts down to prevent unburned gas from accumulating. highintermediate	high	intermediate
31	Code 31 on a Carrier furnace indicates the gas valve is not opening or is closing prematurely during a heating cycle. The control board sends a 24VAC signal to the gas valve solenoid at the appropriate time in the sequence, but the valve either fails to open or opens and then closes before the ignitor and flame sensor complete their cycle. highadvanced	high	advanced
34	Code 34 on a Carrier furnace means the furnace attempted ignition but the flame sensor did not detect a stable flame within the proving period. The control board gives the gas valve and ignitor one attempt (on most models), then shuts down if no flame signal is received within roughly 7-10 seconds of gas valve opening. highintermediate	high	intermediate
12	Code 12 on a Carrier furnace means the blower motor failed to reach operating speed within the expected time after a heat call, or the motor stopped unexpectedly during a run cycle. The control board monitors blower motor performance and triggers this fault when the motor does not respond correctly. moderateintermediate	moderate	intermediate
HUB	This hub covers all Carrier furnace LED flash fault codes. Carrier furnaces use a single LED on the control board that blinks in short and long patterns to communicate fault codes. Counting the blink sequence identifies the specific fault. lowbeginner	low	beginner
RESET	Resetting a Carrier furnace clears the stored fault code from the control board and allows the furnace to attempt a new startup sequence. There are two levels of reset: a soft reset via the thermostat and a hard reset via the circuit breaker. A third manual reset is required for Code 13 rollout lockouts and is specific to the physical rollout switch inside the cabinet. lowbeginner	low	beginner

Trane

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Furnace6 codes

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Code	Issue	Severity	Difficulty
E2.1	Trane furnace error code E2.1 means the rollout limit switch has opened. The rollout switch is positioned outside the combustion chamber and is designed to trip when flames or extremely hot gases roll out of the burner area rather than being contained and directed through the heat exchanger. This is a serious safety event that requires both a manual reset of the switch and a full investigation of the root cause before the furnace is operated again. criticaladvanced	critical	advanced
E12	Trane furnace error code E12 means the furnace attempted ignition three times and failed to establish a stable flame on any of those attempts. The control board has entered ignition lockout to prevent unburned gas from accumulating. The furnace will not attempt another start until manually reset. highintermediate	high	intermediate
E3.2	The induced draft pressure switch did not close. On Trane XC95m and XV95 two-stage furnaces, E3.2 can be a Stage 1-only fault caused by the variable-speed inducer motor losing static pressure at low RPM before bearing wear becomes obvious at high fire. This makes E3.2 behave differently on Trane than on single-stage furnaces from other brands: it may clear itself on the second startup attempt when the control board allows a longer pre-purge. highintermediate	high	intermediate
HT2	Trane furnace error code HT2 indicates the secondary high temperature limit switch has tripped. The HT2 limit is positioned in the supply air plenum and triggers when the air temperature at the heat exchanger exceeds the safe operating threshold. Unlike E2.1 (a rollout switch), HT2 is typically caused by restricted airflow that causes heat to build up rather than by a combustion problem. highintermediate	high	intermediate
7P1	Trane furnace error code 7P1 indicates a communication failure on the Trane ComfortLink or communicating system bus. Modern Trane furnaces with communicating systems exchange digital data between the control board, the variable-speed ECM blower, and the communicating thermostat (such as a Trane XL824 or ComfortLink II). When this data link fails or is interrupted, the control board logs 7P1 and may reduce functionality or shut down. moderateadvanced	moderate	advanced
HUB	This hub covers all Trane furnace error codes for digital display and LED flash models. Trane furnaces with a digital display panel show alphanumeric codes directly (such as E3.2, E2.1, E12). Older LED-only models blink codes in short and long patterns similar to other brands. Error codes indicate which safety circuit or component has failed and guide the diagnostic process. lowbeginner	low	beginner

Irobot

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Robotvacuum6 codes

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Code	Issue	Severity	Difficulty
26	Error 26 means the vacuum motor suction pathway is blocked or the motor is overloaded. Roomba detects that airflow through the suction system is below the expected level, indicating a clog or motor failure. moderatebeginner	moderate	beginner
BF0B2C	BF0B2C means the main brush extractor rollers have stalled or their motor is overloaded. The two counter-rotating rubber or bristle extractors that pick up debris from the floor are either jammed with hair and debris or the brush motor has failed. moderatebeginner	moderate	beginner
BR02D0	BR02D0 means the side brush motor has stalled. The spinning brush on the bottom edge of Roomba that sweeps debris toward the center intake has either jammed due to wrapped debris or its motor has failed. moderatebeginner	moderate	beginner
14	Error 14 means Roomba cannot detect that the dustbin (dirt collection bin) is properly installed. The robot will not run a cleaning cycle without confirming the bin is seated and the bin door is closed. lowbeginner	low	beginner
EXPANDED-HUB	Complete Roomba error code reference covering numeric codes (1-43), alphanumeric codes (C510, BR02D0), beep patterns, and LED colors across all Roomba series from 500 to S9+. lowbeginner	low	beginner
HUB	Roomba robot vacuums communicate faults through a combination of blink patterns on the Clean button and spoken voice messages. Each blink count or alphanumeric code (on newer models) corresponds to a specific mechanical or electronic failure. lowbeginner	low	beginner

Pitboss

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Pelletgrill4 codes

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Code	Issue	Severity	Difficulty
ERR	ERR on a Pit Boss pellet grill means the temperature probe has lost its reading or the grill temperature is outside the expected range. Unlike Traeger which uses specific codes (LEr, HEr), Pit Boss uses a single generic ERR for most faults. mediumbeginner	medium	beginner
NOT-IGNITING	Igniter Rod, Firepot, and Startup Sequence Fix mediumintermediate	medium	intermediate
TEMP-SWINGS	PID Controller Tuning Guide mediumintermediate	medium	intermediate
ERR-RESET	Resetting the ERR code on a Pit Boss pellet grill requires turning off the grill, unplugging for 30 seconds, cleaning the firepot, and restarting. Simply cycling power may clear a transient ERR, but persistent ERR requires fixing the underlying cause. lowbeginner	low	beginner

Fujitsu

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Minisplit4 codes

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Code	Issue	Severity	Difficulty
NOT-COOLING	Causes and Fixes mediumintermediate	medium	intermediate
NOT-HEATING	Causes and Fixes mediumintermediate	medium	intermediate
A1	A1 on a Fujitsu Halcyon mini-split means the indoor unit printed circuit board (PCB) has detected an internal fault. The control board manages all indoor unit functions including fan control, temperature sensing, and communication with the outdoor unit. highadvanced	high	advanced
HUB	Fujitsu Halcyon mini-split systems display single or double-letter fault codes on the indoor unit display when a component failure or sensor fault is detected. These codes help identify whether the issue is in the indoor unit, outdoor unit, or communication between the two. lowbeginner	low	beginner

Lennox

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Furnace4 codes

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Code	Issue	Severity	Difficulty
270	Lennox furnace error code 270 means the furnace attempted ignition multiple times but failed to establish a confirmed flame and has locked out. The control board goes through the full pre-ignition sequence (inducer preheat, ignitor heat-up, gas valve open) but does not receive a valid flame signal from the flame sensor within the proving window. After a set number of failed attempts, code 270 locks the board and prevents further starts until reset. highintermediate	high	intermediate
E223	The primary pressure switch in the induced draft circuit did not close during startup. On SL280V and EL296V models, the cylindrical condensate trap uses an internal check valve that deteriorates with age, allowing air to bypass the sensing circuit and producing E223 even when the drain line itself is physically clear. E223 blocks gas valve operation to prevent unventilated ignition. highintermediate	high	intermediate
E228	Lennox furnace error code E228 means the induced draft blower motor (inducer) has stalled, failed to start, or is running outside its expected speed parameters. The inducer motor is the fan that creates negative draft pressure in the heat exchanger and vents combustion gases. On Lennox variable-speed models like the SL280V and EL296V, the control board monitors inducer speed electronically and trips E228 when the motor does not respond correctly. highintermediate	high	intermediate
HUB	This hub covers Lennox furnace alphanumeric error codes displayed on the digital control board panel. Lennox furnaces use a two or three character display that shows error codes either continuously or in a rotating sequence when a fault is active. Some older Lennox models without a display use LED blink codes read by pressing the diagnostic button on the control board to scroll through the fault history. lowbeginner	low	beginner

Epson

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Printer3 codes

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Code	Issue	Severity	Difficulty
0x97	Error 0x97 on an Epson printer indicates an internal hardware failure on the main circuit board (PCB). The printer detects a critical component fault and stops all operations. This error cannot be cleared with a standard restart. highintermediate	high	intermediate
ERROR-LIGHTS	Epson printers without a display panel communicate errors through LED blink patterns on the control panel. Each combination of lights blinking indicates a specific fault: ink empty, paper jam, cover open, or print head issue. moderatebeginner	moderate	beginner
HUB	Epson printers report faults through alphanumeric error codes on the display, LED blink patterns on the control panel, and error notifications through the Epson Connect app or print driver. Understanding these codes helps identify hardware and consumable failures. lowbeginner	low	beginner

Rheem

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Waterheater3 codes

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Code	Issue	Severity	Difficulty
NO-HOT-WATER	Gas, Electric, and Tankless Diagnosis mediumintermediate	medium	intermediate
11	Code 11 on a Rheem tankless water heater means the unit attempted to ignite the burner and failed after multiple tries. The control board detected no flame signal and shut down as a safety measure. highintermediate	high	intermediate
HUB	Rheem tankless water heaters display numeric error codes on the LCD when the unit detects a fault in the gas supply, ignition, venting, or sensor circuits. These codes help identify the specific failure before calling a technician. lowbeginner	low	beginner

Dyson

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Airpurifier1 codes

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Code	Issue	Severity	Difficulty
HUB	Dyson uses letter-number error codes across all product lines. F codes (F2, F3, F4, F6) appear on fans and purifiers. E codes (E, E4, E5, E8) appear on heaters. H2 appears on Hot+Cool fan heaters. Vacuum models use flashing LEDs. lowbeginner	low	beginner

Vacuum2 codes

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Code	Issue	Severity	Difficulty
NO-SUCTION	Filter, Blockage, and Seal Diagnosis mediumintermediate	medium	intermediate
NOT-WORKING	V10, V11, V12, V15 Flashing Light Diagnosis mediumintermediate	medium	intermediate

Nespresso

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Coffeemaker3 codes

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Code	Issue	Severity	Difficulty
NOT-HEATING	Cold Coffee From Vertuo and Original Machines mediumintermediate	medium	intermediate
NOT-PUMPING	Vertuo, Original, and Lattissima Fixes mediumintermediate	medium	intermediate
ORANGE-LIGHT	A blinking orange light on a Nespresso Vertuo, Vertuo Next, Vertuo Plus, or Vertuo Pop indicates a fault or maintenance state. The NUMBER of blinks between pauses determines the specific issue. lowbeginner	low	beginner

Insinkerator

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Garbagedisposal2 codes

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Code	Issue	Severity	Difficulty
LEAKING	InSinkErator Garbage Disposal Leaking From Bottom, Side, or Top mediumintermediate	medium	intermediate
NOT-WORKING	Humming, Jammed, and Reset Fixes mediumintermediate	medium	intermediate

Chamberlain

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Garagedoor2 codes

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Code	Issue	Severity	Difficulty
BLINK	Step-by-step guide to reading the Chamberlain motor unit LED blink codes and what each count means. Covers all 5 standard blink patterns across B-Series (B380, B550, B750) and classic PD/WD model lines. lowbeginner	low	beginner
HUB	Reference guide for Chamberlain garage door opener fault signals, including LED blink codes on the motor unit, MyQ app error messages, and limit and safety fault indicators across the B-Series and classic PD/WD model lines. lowbeginner	low	beginner

Nordictrack

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Treadmill2 codes

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Code	Issue	Severity	Difficulty
INCLINE-CAL	NordicTrack treadmill incline calibration is a process that syncs the incline motor position with the iFit software. A failed calibration means the incline motor cannot reach its reference positions. mediumintermediate	medium	intermediate
HUB	NordicTrack treadmill and bike error codes fall into two categories: iFit software errors (65xxx, 69xxx series) and hardware errors (E-codes). Most NordicTrack errors are software/connectivity, not hardware. lowbeginner	low	beginner

Scotsman

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Icemachine1 codes

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Code	Issue	Severity	Difficulty
HUB	Scotsman ice machines use numbered LED blink codes (1-8) on the Prodigy and standard controllers. Each blink count indicates a specific fault condition. mediumintermediate	medium	intermediate

Shark

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Vacuum1 codes

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Code	Issue	Severity	Difficulty
NOT-WORKING	Suction, Brush Roll, and Overheating Fixes mediumintermediate	medium	intermediate

Ring

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Doorbell1 codes

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Code	Issue	Severity	Difficulty
HUB	Ring Video Doorbell error codes appear in the Ring app during setup or operation. Common codes include connection errors (504), setup failures (P1-65, Q1-65), and device faults (P7-07). lowbeginner	low	beginner

Nest

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Thermostat1 codes

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Code	Issue	Severity	Difficulty
HUB	Google Nest thermostat error codes use an E-prefix for hardware faults and system issues. The most common codes are E73 (no power to cooling), E74 (no power to heating), E298 (no power detected at all), W5 (HVAC not responding), and N260 (network connection lost). mediumintermediate	medium	intermediate

Tesla

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Evcharger1 codes

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Code	Issue	Severity	Difficulty
RED-LIGHT	A red light on a Tesla Wall Connector indicates a fault condition. The Wall Connector uses colored LED lights (green, blue, amber/yellow, red) to communicate status. highintermediate	high	intermediate

Peloton

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Treadmill1 codes

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Code	Issue	Severity	Difficulty
HUB	Complete guide to Peloton Tread and Tread+ error codes. Peloton uses alphanumeric error codes displayed on the touchscreen for safety shutdowns, motor faults, and connectivity issues. mediumbeginner	medium	beginner

Manitowoc

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Icemachine1 codes

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Code	Issue	Severity	Difficulty
HUB	Complete guide to Manitowoc ice machine fault codes. Manitowoc uses LED blink codes and text displays including HPCO (High Pressure Cut Out), Long Freeze, Long Harvest, T3, and T4 faults. mediumintermediate	medium	intermediate

Hisense

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Dehumidifier1 codes

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Code	Issue	Severity	Difficulty
E9	E9 on a Hisense dehumidifier means the room temperature sensor (thermistor) has failed or is reading outside its expected range. mediumintermediate	medium	intermediate

Balboa

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Hottub1 codes

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Code	Issue	Severity	Difficulty
HUB	Reference guide for all Balboa spa control system error codes including OH (overheat at 112°F), HH (sensor shorted above 120°F), --- (sensor open circuit), ICE (freeze protection mode), FL/FLO (flow fault), and Sn1-Sn4 (individual sensor fault codes). lowbeginner	low	beginner

Dacor

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Oven1 codes

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Code	Issue	Severity	Difficulty
F2	F2 on a Dacor oven indicates the oven temperature exceeded safe limits or the temperature sensor is reading abnormally high. Dacor is a premium brand owned by Samsung. highadvanced	high	advanced

Amana

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Oven1 codes

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Code	Issue	Severity	Difficulty
F1 E0	F1E0 on an Amana oven means the control board EEPROM has failed. Amana ovens are manufactured by Whirlpool and use the same error code system. highadvanced	high	advanced

Baby-brezza

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Washer1 codes

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Code	Issue	Severity	Difficulty
HUB	The Baby Brezza Bottle Washer (standard and Pro models) is an automated bottle cleaning appliance that washes, sterilizes, and dries baby bottles and accessories. It displays E-codes on its LED panel when it detects a fault with the water supply, heating system, or cycle operation. lowbeginner	low	beginner

Unimac

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Washer1 codes

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Code	Issue	Severity	Difficulty
HUB	UniMac is a commercial laundry equipment brand manufactured by Alliance Laundry Systems (the same company that makes Speed Queen). UniMac washers are found in laundromats, hotels, and multi-housing facilities. They use the UniLinc or Unimatic Plus control systems which display numeric or alphanumeric error codes. highintermediate	high	intermediate