LG Overheating Electrical Component or Insulation

Chemical or burning plastic smell coming from the wine cooler, especially near the rear.

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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

Overheating main control board, Shorted wiring harness, Dust burning off condenser coils, Failing compressor winding insulation

How to Fix / Troubleshooting

Safety: Immediately unplug the unit if you smell burning or see smoke. Do not continue to operate until inspected.

Steps:

  • 1. Visual inspection: With the unit unplugged and cooled, remove the rear panel and inspect the control board, wiring, and compressor area for burn marks or melted insulation.
  • 2. Clean condenser: If the smell is more like hot dust, clean the condenser coils thoroughly.
  • 3. Check wiring: Look for discolored or brittle wires. Replace any damaged harness sections.
  • 4. Inspect control board: If the PCB shows signs of overheating, replace it with the correct LG part.
  • 5. Professional evaluation: If the compressor itself smells burnt or there is evidence of internal failure, contact a licensed technician for sealed system diagnosis.
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Repair Difficulty

Professional Required 5/5

Required Part

Main Control Board
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