LG Oven F19 Error Code: Oven Control Board Fault

Quick Answer

F19 on an LG oven means the main control board has failed or detected a critical internal fault. A hard reset at the breaker clears it temporarily in some cases, but if it returns the board itself usually needs replacement. EBR-series control boards for LG ranges run $150-300 depending on model. Power surges are the most common external cause. This is an advanced repair due to the cost of the part and the multi-connector disassembly involved.

LgOvenSeverity: highDifficulty: advanced83% DIY Success

Time to Fix

45–90 min

Difficulty

advanced

Parts Cost

$150 – $300

Tools Needed

Phillips head screwdriver, Torx T20 screwdriver (some models)

What Does the F19 Code Mean?

Your LG oven's main circuit board has failed. Try cutting power at the breaker for 60 seconds as a first step. If F19 returns, the board needs replacement. Parts run $150-300 depending on your model.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Control board internal component failure40%

Power surge or voltage spike causing board damage24%

Thermal damage from prolonged oven use at high temperatures22%

Wiring fault sending incorrect signals to the board14%

Symptoms You May Notice

F19 displayed on control panel
Oven will not heat at all
Display shows garbled characters or is blank
Oven starts heating but shuts off immediately with F19
Control panel buttons are unresponsive

Can you reset a Lg oven to clear the F19 code?

Turn off the circuit breaker for 60 seconds, then restore power. Press Clear/Off to dismiss the F19 code. A board that resets but fails again within a few uses has an intermittent fault that will eventually become permanent. Address it before the board fails completely.

Tools Required for Diagnosis

Phillips head screwdriverTorx T20 screwdriver (some models)Needle-nose pliersSmartphone camera (photograph wiring before disconnecting)Multimeter (optional, for voltage verification at board)

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

Perform a hard reset

Perform a hard reset. Turn off the oven's circuit breaker for a full 60 seconds, then restore power. This clears any transient or soft fault stored in the board's volatile memory.

Remove the back panel to access the main control board

Inspect every wiring harness connector on the control board

Order the correct replacement control board by looking up your

Install the new board by transferring wiring harnesses one

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name	OEM Number	Estimated Price
Main Control Board (EBR series)EBR74798603 · $150–$300	EBR74798603	$150 – $300

Verify part fitment for your Lg model

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs

Labor Approach

Our Verdict

REPAIR

Estimated Cost: $225 (Parts) vs $1100 (New Machine)

Frequently Asked Questions

How do I find the correct LG oven control board part number?

Locate the rating label on your oven, usually found inside the storage drawer at the bottom, on the oven door frame, or on the rear panel. The full model and serial number printed there is what you need. Enter it at LG's parts website or search a parts retailer like AppliancePartsPros or RepairClinic for the EBR board number specific to your unit.

Can I test whether the LG oven control board is actually bad before buying one?

Partial testing is possible. Use a multimeter to verify the board is receiving the correct voltage on its power input (120VAC and 240VAC as applicable). If voltage is correct but the board does not respond, the board has failed. However, most homeowners find that if the reset and wiring check steps above have been completed and F19 persists, board replacement is the correct path.

My F19 only happens when the oven gets hot. Could it still be the board?

Yes. Thermal intermittent failures are common in aging control boards. Components that function at room temperature fail when they reach operating temperature due to cracked solder joints or degraded capacitors. An oven board that fails only when hot is nearing the end of its service life and will eventually fail permanently.

Is it worth replacing the control board on a 10-year-old LG oven?

At $150-300 for the board plus $100-200 in labor if using a technician, the repair cost can approach $500. A new LG range starts around $700-900. If the rest of the oven (elements, door, cooktop) is in good condition, repair is usually worth it. If multiple issues exist, replacement makes more sense.

Will a surge protector prevent F19 on my LG oven?

Standard surge protectors are not rated for the 240V 50-amp circuit a range requires. A whole-home surge protector installed at the main electrical panel is the correct protection for appliances like ovens and dryers. These run $100-300 installed and protect all circuits in the home.

Related Lg Oven Error Codes

Code: HUBLG Oven Error Codes Guide Code: F9LG Oven F9 Error Code: Door Lock Mechanism Fault

Same Fix Works on These Brands

Lg shares the same hardware platform with these brands. The diagnosis and repair steps are identical.

Lg washerLG Washer Error Codes: Complete List With Fixes (2026)Lg washerLG Washer LE Error: Why the Motor Locked Up (Fix It Fast)Lg washerSUD on Your LG Washer? Too Many Suds (Here's the Real Fix)Lg washerLG Washer OE Code: Water Won't Drain (Troubleshooting Guide)Lg washerHow to Reset an LG Washer (Every Method, Every Model)Lg washerFE Code on LG Washer: Overfilling and How to Stop It

Models Known to Experience F19 Errors

This repair applies to most Lg ovens with this error code. Common model numbers include:

LRE3061ST, LRE3194ST, LSIS3010SS, LDE4413ST

Last verified for technical accuracy on March 14, 2026