LG Fridge CH E Error Code: Chamber Temperature Sensor Fault

Quick Answer

LG CH E indicates a chamber temperature sensor fault. LG French door refrigerators have separate sensors for the fresh food section, freezer, ice room, and sometimes the flex zone. CH E means one of these sensors is reading open circuit, short circuit, or far outside the expected temperature range.

CH E means your fridge is basically flying blind on temperature. The control board can't decide when to cycle the compressor without a reliable sensor reading, so it either guesses wrong or stops cooling that zone entirely. I've shown up to calls where the milk was frozen solid and the eggs were warm. The sensor itself is cheap, like $15-25, but ignoring this will absolutely hammer that linear compressor way before its time.

LgRefrigeratorSeverity: moderateDifficulty: intermediate85% DIY Success

Time to Fix

20–60 min

Difficulty

intermediate

Parts Cost

$10 – $25

Tools Needed

Phillips #2 screwdriver, Flathead screwdriver for prying plastic tabs

What Does the CH E Code Mean?

OK so here's the deal with CH E. LG sensors don't usually just die on their own. What I actually see most of the time is moisture creeping into that little plastic connector at the back wall and corroding the contacts until the resistance reading goes haywire. These are NTC thermistors, so their resistance drops as things get warmer. You're probably looking at a $20 part and an hour of your time, not a major repair.

Most Likely Causes

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

Fresh food section sensor failed40%

Freezer sensor failed24%

Sensor wire connector corroded14%

Sensor reading out of range from ice buildup around it12%

Sensor wire broken inside wall10%

Symptoms You May Notice

CH E or a variant like CH 1 or CH 2 flashing on the display, sometimes alternating with the temperature readout so it keeps cycling back and forth.
Your fresh food section is either freezing everything solid, including the lettuce you just bought, or it's sitting warm at 50 degrees and you don't notice until the yogurt goes bad.
Compressor sounds like it's running nonstop but the temperature in the affected zone never actually stabilizes where you want it.
Ice forming in weird spots inside the fresh food section, especially along the back wall near the air duct outlets.
The display shows a temperature that seems completely wrong, like 99 degrees in a zone that still feels cold when you stick your hand in.

Can you reset a Lg refrigerator to clear the CH E code?

Unplug the fridge from the wall, not just turn it off at the display. Wait a full five minutes. Plug it back in and watch the display. If the sensor is truly dead, CH E will be back within 30 seconds of startup. If it stays clear for a few minutes, you might've had a temporary glitch, but don't count on it lasting. Test that sensor anyway before you call it fixed.

Tools Required for Diagnosis

Phillips #2 screwdriverFlathead screwdriver for prying plastic tabsDigital multimeter with ohms/resistance settingFlashlight or headlampTowels for ice and water dripRefrigerator thermometer to verify the fix afterward

Service / Diagnostic Mode

Press and hold Refrigerator and Ice Plus simultaneously for 3 seconds until the display changes. Tap the Refrigerator button to cycle through each sensor reading. A reading of 'Er' or a temperature above 85°F or below -40°F on any sensor indicates the failed zone.

Diagnostic Checklist

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

ComponentComponent Under Test

Expected Range4500–5500 ohms

ConditionIf Open (OL) or infinite, replace component.

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
LG Refrigerator Temperature Sensor6323JA2001L · $10–$25	6323JA2001L	$10 – $25

Frequently Asked Questions

Will my LG fridge still cool with CH E?

Not reliably. When the board loses its sensor signal, it either defaults to a timed run cycle or stops cooling that zone entirely to prevent a freeze-up. I've seen cases where the freezer stays rock solid at 0 degrees but the fresh food section climbs to 50, and you don't realize it until the sour cream goes bad. Move your perishables to a cooler if you can't fix it today. Don't gamble on groceries when a $20 thermistor is almost certainly the fix.

How many temperature sensors does my LG fridge have?

Most LG French door models from the last 10 years run four main sensors: one for the fresh food compartment, one for the freezer, one for the ice maker room, and a defrost sensor clamped to the evaporator coil. Some higher-end models, like the InstaView or Craft Ice units, add a fifth for a convertible drawer. The diagnostic mode cycles through all of them and shows which one's reading bad, so you don't have to guess and pull panels you don't need to.

Can I use a generic thermistor instead of the LG OEM part?

Technically a generic 5k NTC thermistor produces the right resistance curve. But the connector housing and mounting clip on LG sensors are specific to their harness design, so you'd have to splice wires inside a damp environment where that splice will eventually corrode and fail. The OEM part runs $15-25. I replaced three of these last week alone. That's one of those cases where saving $8 on a generic part just isn't worth redoing the repair in a year.

Is CH E the same as CF E or Er FF on LG fridges?

Not the same thing. CH E is specifically the chamber sensor circuit, meaning a thermistor in one of the compartments. CF E is usually a condenser fan motor error. Er FF points to a freeze failure in the freezer zone. They're related in that they all affect temperature management, but they're different components entirely. If you've already swapped the sensor and CH E keeps coming back, that's when you start looking at the wiring harness and then the main board as a last resort.

What should I expect to pay a tech to fix this?

Most techs in my area charge $75-100 just to show up, then labor on top of that. The part itself is $15-35 depending on which sensor and where you order it. All in, expect a $150-220 bill for a pro repair. Honestly this is one of the better DIY appliance jobs out there. If you're even slightly handy, you can do it in under an hour with a screwdriver and a cheap multimeter. I'd try it yourself first before calling someone out for something this straightforward.

Related Lg Refrigerator Error Codes

Code: HUBLG Refrigerator Error Codes Code: CL ELG CL E: Door Fan 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 CH E Errors

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

LRFXS2503S, LRMVS3006S, LFXS26973S, LFXS28968S, LRFDS3006S, LRMVS3006D, LRFXC2416S, LFXS30796D

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 14, 2026