Warning: Disconnect power before servicing.
ErrBase

Lg Refrigerator Not Cooling: Causes and Fixes

Quick Answer

LG refrigerators with Linear Compressor technology can develop a specific failure mode where the compressor runs but does not produce adequate cooling. LG issued an extended warranty on the Linear Compressor (up to 10 years from purchase) due to known reliability issues.

LG refrigerators with Linear Compressor technology can develop a specific failure mode where the compressor runs but does not produce adequate cooling. LG issued an extended warranty on the Linear Compressor (up to 10 years from purchase) due to known reliability issues. If your LG fridge is not cooling and you hear the compressor running, check if your model is covered under LG's compressor warranty extension before paying for repair.

LgRefrigeratorSeverity: mediumDifficulty: intermediate75% DIY Success
Time to Fix
15–90 min
Difficulty
intermediate
Parts Cost
—
Tools Needed
Multimeter, Screwdriver set

What Does the NOT-COOLING Code Mean?

Lg refrigerator not cooling - see the detailed diagnosis steps below for Lg-specific causes and fixes.

Most Likely Causes

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

Component failure in the LG refrigerator40%
Sensor or thermostat out of operating range24%
Control board fault14%
Power or electrical supply issue12%
Mechanical wear requiring inspection10%

Symptoms You May Notice

  • Not Cooling on Lg refrigerator
  • Performance degradation
  • Unusual sounds or behavior
  • Error code may appear

Can you reset a Lg refrigerator to clear the NOT-COOLING code?

Unplug for 60 seconds. Some Lg models have specific reset sequences - check the diagnostic mode entry above.

Tools Required for Diagnosis

MultimeterScrewdriver setFlashlight

Diagnostic Checklist

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

1

Check the most common Lg-specific cause for not cooling on Lg

Check the most common Lg-specific cause for not cooling on Lg refrigerators. See the detailed guide above.

2

Check secondary causes common across all refrigerator brands but

3

If basic checks do not reveal the cause, run the brand

Frequently Asked Questions

How much does it cost to fix a Lg refrigerator not cooling?
Most Lg refrigerator not cooling repairs cost $100-400 depending on the cause. Simple fixes (cleaning, resetting) are free. Part replacements range from $10-200 plus $100-200 labor.
Is it worth repairing a Lg refrigerator not cooling?
If the refrigerator is under 8 years old and the repair is under 50% of replacement cost, repair is worthwhile. Lg extended the Linear Compressor warranty to 10 years on refrigerators.
Can I fix Lg refrigerator not cooling myself?
Many Lg refrigerator issues are DIY-fixable with basic tools. Sealed refrigerant system repairs require a certified technician.

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 NOT-COOLING Errors

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

LRFXS2503S, LFXS26973S

Last verified for technical accuracy on March 15, 2026