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LG Refrigerator ER IF Error Code: Ice Maker Sensor Fault

Quick Answer

The LG ER IF error code means the ice maker temperature sensor has failed. The sensor tells the control board when the ice maker tray is cold enough to harvest a batch of cubes. Without accurate readings, the ice maker shuts down ice production to prevent incomplete freezing or flooding.

The LG ER IF error code means the ice maker temperature sensor has failed. The sensor tells the control board when the ice maker tray is cold enough to harvest a batch of cubes. Without accurate readings, the ice maker shuts down ice production to prevent incomplete freezing or flooding. The sensor is inexpensive and straightforward to replace - it clips onto the ice maker assembly and costs $10-25. Wiring harness damage is the second most common cause, so inspect the connector before ordering parts.

LgRefrigeratorSeverity: moderateDifficulty: intermediate85% DIY Success
Time to Fix
20–45 min
Difficulty
intermediate
Parts Cost
$10 – $25
Tools Needed
Phillips screwdriver, Multimeter

What Does the ER IF Code Mean?

The ice maker temperature sensor monitors tray temperature during the freeze and harvest cycle. When it fails, the control board loses temperature feedback and halts ice production entirely.

Most Likely Causes

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

Ice maker temperature sensor failure (probe element open circuit)40%
Wiring harness connector to sensor corroded or disconnected24%
Ice maker assembly failure including the sensor as an integrated component14%
Sensor physically displaced from mounting position by ice impact12%
Control board ice maker sensor input circuit failed10%

Symptoms You May Notice

  • ER IF displayed on temperature panel
  • Ice maker stopped producing ice
  • Ice maker tray not cycling
  • No water filling sound during ice maker cycle
  • Ice bin is empty or not replenishing

Can you reset a Lg refrigerator to clear the ER IF code?

Unplug the refrigerator for 5 minutes and plug back in. If ER IF clears and does not return within an hour, it was a transient glitch. If it returns, the sensor or wiring needs repair - a reset will not restore ice production.

Tools Required for Diagnosis

Phillips screwdriverMultimeterNut driver

Diagnostic Checklist

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

1

Unplug the refrigerator and remove the ice bin

Unplug the refrigerator and remove the ice bin. Locate the ice maker assembly - on French door LG models it is inside the freezer or in the upper ice maker compartment. Find the temperature sensor - it is a small probe clipped to the ice maker tray or evaporator near the ice maker.

2

Disconnect the sensor connector and test the sensor with a

3

Inspect the wiring harness from the sensor connector back toward

4

Replace the ice maker temperature sensor

5

Plug in the refrigerator

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
Ice Maker Temperature Sensor6615JB2002F · $10–$25

Repair vs. Replace Calculator

Appliance Age (Years)7 Yrs
Labor Approach
Our Verdict
REPAIR
Estimated Cost: $18 (Parts) vs $1350 (New Machine)

Frequently Asked Questions

What is the difference between ER IF and IF E on an LG refrigerator?
They point to different components. ER IF is an ice maker temperature sensor fault - the sensor itself failed. IF E is an ice maker fan motor fault - the fan motor failed. Both result in ice production stopping, but the parts and repair approach are completely different.
Can I bypass the ice maker sensor to get ice temporarily?
No safe way to bypass exists on LG models. The control board will refuse to run the ice maker cycle without valid sensor readings. The only fix is to replace the sensor or the ice maker assembly.
My LG refrigerator makes ice manually when I press the test button, but shows ER IF. Is the sensor really bad?
Some manual test cycles bypass the sensor check and force a mechanical harvest. This does not mean the sensor is working correctly - the code will continue to block normal automatic ice making. Replace the sensor.
Is the ER IF sensor the same part as the defrost sensor that causes the 1F code?
No. The 1F defrost sensor is clipped to the main evaporator coil tubing and monitors defrost cycle temperature. The ER IF sensor is specifically for the ice maker tray zone. They are different parts with different OEM numbers.
How long does ice production take to resume after fixing ER IF?
Up to 24 hours for a full bin. The ice maker needs to complete fill, freeze, and harvest cycles. Each cycle takes about 90-180 minutes depending on freezer temperature. If no ice appears after 24 hours, check that the water supply is connected and the ice maker arm is in the down position.

Related Lg Refrigerator Error Codes

Code: HUBLG Refrigerator Error Codes: Smart Diagnosis Guide for French Door and Side-by-Side ModelsCode: IF ELG Refrigerator IF E Error Code: Ice Maker Fan Motor Fault

Same Fix Works on These Brands

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

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Models Known to Experience ER IF Errors

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

LRMVS3006S, LRFXS2503S, LRFXC2416S, LRMGS2806S, LSXS26366S

Last verified for technical accuracy on March 14, 2026