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ErrBase

Common LG Refrigerator Problems and Solutions

Quick Answer

The most common problems with LG refrigerators are failing linear compressors, iced-up evaporator fans, and clogged defrost drains. If your unit isn't cooling, first check if it's in 'Demo Mode' or if the condenser coils are simply clogged with dust. Many cooling issues are actually airflow problems that you can fix with a vacuum and a hair dryer.

Look, if you called me out for an LG fridge that's not cooling, there's about a 40% chance it's the compressor and a 60% chance it's something way cheaper. I've seen people ready to trash a $2,000 fridge that just needed the coils vacuumed or had accidentally been put into Demo Mode. The compressor issue is real and ugly if you ignore it, but don't jump there first.

LgRefrigeratorSeverity: moderate
Time to Fix
15–120 min
Difficulty
beginner
Parts Cost
—
Tools Needed
Phillips #2 screwdriver, Vacuum with crevice attachment

What Does the PROBLEMS Code Mean?

Troubleshooting an LG fridge is all about ruling out the simple stuff before blaming the compressor. I always start by checking for Demo Mode and cleaning the coils. If the fans are spinning and the coils are clean but it's still warm, then we start looking at the more serious sealed system issues these models are known for. Honestly, nine out of ten calls I get, the fix is either a $12 start relay or a good coil cleaning.

Common Causes

  • The linear compressor's piston wears down over time and stops building enough pressure to cool, usually around year 5-7 on heavily used units. You'll hear it clicking or buzzing but the fridge just won't get cold.
  • Condenser coils packed with pet hair and dust make the compressor work way harder than it should, and on LG's high-efficiency units that heat buildup can kill a compressor that would've lasted another five years with basic cleaning.
  • The evaporator fan motor gets a thick shell of ice around it when the defrost heater or thermostat fails. Once it can't spin freely, you lose all airflow to the fresh food section entirely.
  • The defrost drain tube, which runs from under the evaporator coils down to a drain pan, clogs with ice and slime and ends up sending water under your crisper drawers instead of where it's supposed to go.
  • Ice maker inlet valve or internal heater fails and the whole tray freezes into one solid block, jamming the mechanism and sometimes cracking the plastic tray itself.
  • The main control board has a relay that controls compressor startup and it can fail silently, meaning the board looks totally normal but it's never actually telling the compressor to kick on.

Symptoms You May Notice

  • The fresh food section is room temperature but your freezer is still cold and making ice. Classic sign the evaporator fan isn't moving air between compartments.
  • A loud grinding or rattling sound coming from behind the rear freezer wall, especially if it gets worse right when you open the door.
  • Water pooling under the crisper drawers, or a puddle on the kitchen floor right in front of the unit.
  • Ice maker completely stopped, or there's just one solid frozen block where individual cubes should be.
  • The entire back interior wall of the freezer is one giant slab of ice, or there's a sheet of ice covering the freezer floor.

Can you reset a Lg refrigerator to clear the PROBLEMS code?

To exit Demo Mode, open any door and hold the Refrigerator button and the Ice Plus button at the same time for 5 seconds until you hear a chime and the display changes. For a general soft reset, unplug the unit for 10 full minutes, then plug it back in and give it at least 24 hours to reach normal temps before deciding it's still broken.

Tools Required for Diagnosis

Phillips #2 screwdriverVacuum with crevice attachmentTurkey basterHair dryer or heat gunFlashlightNeedle-nose pliers1/4 inch nut driverTowels and a small bucket

Diagnostic Checklist

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

Frequently Asked Questions

Why is my LG refrigerator not cooling but the lights are on?
Nine times out of ten, this is either a compressor issue or the fridge got accidentally put into Demo Mode, which cuts power to all cooling while keeping the lights and display on. To exit Demo Mode, open one door and hold the Refrigerator and Ice Plus buttons simultaneously for five seconds until you hear a chime. If that doesn't fix it within a few hours, the compressor or its start relay is the likely culprit. Check that relay first since it's a $15 part and rattles when it's bad.
How do I fix the loud humming or grinding noise in my LG freezer?
That noise is almost always the evaporator fan hitting a buildup of ice around the motor housing. It happens when the door gets left open or when the defrost cycle starts failing. You can often fix it by manually defrosting the unit for 24 hours with doors propped open and towels on the floor. But that's temporary if your defrost heater or thermostat is actually bad. Check your door gaskets while you're at it because a leaking seal is usually what started the whole problem in the first place.
Is there a recall on LG refrigerator compressors?
There wasn't a formal safety recall but there was a major class-action settlement over the Linear Compressor failures. LG extended the warranty on many affected models to 10 years on sealed system parts. If your fridge is under a decade old, call LG support at 1-800-243-0000 before you pay anyone for a compressor replacement. Have your model and serial number ready. I've had customers get a fully covered repair they didn't even know they qualified for.
Why is my LG ice maker not making ice?
Check the on/off switch on the ice maker arm first, it gets bumped more than you'd think. If it's on, the tray might be jammed or the internal heater that releases the cubes has failed. Try a reset by holding the Test button for 3 seconds to force a cycle and watch where it gets stuck. If it fills with water but never dumps, the heater's gone. If it doesn't fill at all, you're probably looking at the water inlet valve, which runs about $40-60 to replace.
How often should I clean the coils on my LG fridge?
Every six months minimum, more if you have shedding pets. I tell everyone this and almost nobody actually does it. LG's high-efficiency compressors run hotter than older-style units, so they're way less forgiving when airflow gets restricted. I replaced three compressors last month and at least two of them probably didn't need to die if someone had vacuumed the coils once in a while. It's a 10-minute job. Just do it.
Can I replace the LG linear compressor myself?
Mechanically, kind of. But here's the catch: refrigerant work requires EPA 608 certification and recovery equipment, so unless you have that you'll still need a certified tech to finish the job. The compressor part itself runs $200-400. Labor adds another $400-600 at most shops. So you're looking at $600-1000 total. If the fridge is more than 8 years old, seriously weigh that against the cost of a new unit. I've seen customers spend $700 on a compressor and then have the control board fail six months later.

Models Known to Experience PROBLEMS Errors

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

LFXS26973S, LMXS28626S, LRFVS3006S, LFXS28968S, LTCS24223S, LFXS30726S, LRMVS3006S, LRFXS2503S

MS

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on May 20, 2024