LG
No Cooling / Sealed System or Compressor Failure
Refrigerator not cooling at all; both refrigerator and freezer are warm, interior lights work, fans may or may not run.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed linear compressor, Refrigerant leak in sealed system, Blocked capillary tube or restriction, Faulty compressor inverter board
How to Fix / Troubleshooting
Safety: Unplug the refrigerator before inspecting the rear. Sealed system repairs involve refrigerant and must be done by an EPA-certified technician.
- Check basics: Verify the unit is plugged in, breaker is on, and temperature settings are not in demo mode.
- Listen and feel: Pull the unit away from the wall. Check if the compressor is running (slight vibration and warmth) and if the condenser fan is spinning.
- Condenser cleaning: Vacuum dust from the condenser coils and ensure the rear fan runs when powered.
- Frost pattern: If accessible, remove the freezer rear panel and inspect the evaporator. A completely dry coil or only a small frost patch suggests a sealed system issue.
- Call a professional: If the compressor is not running or the frost pattern is abnormal, contact an LG-authorized technician for compressor or sealed system diagnosis and repair.
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Repair Difficulty
Professional Required
5/5
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