Koolatron Overheating Electrical Component

Chemical or plastic burning smell when the wine cooler is running.

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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

Dust burning off new heating elements or resistors on first use, Overheating Peltier module or heat sink due to blocked ventilation, Failing fan motor winding, Shorted wiring harness

How to Fix / Troubleshooting

Immediate safety: If you smell burning plastic or see smoke, unplug the cooler immediately and do not continue to operate it.

Steps:

  • Inspect rear compartment: After unplugging and allowing to cool, remove the rear cover and look for discolored or melted wiring, connectors, or components.
  • Check fans and ventilation: Ensure the rear fan is running (when powered) and that the heat sink is not clogged with dust. Clean as needed.
  • Look for melted plastic: Inspect the area around the Peltier module and heat sink for signs of overheating.
  • Replace damaged parts: Replace any burnt wiring harness, fan motor, or control board components. If damage is extensive, consult a professional.
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Repair Difficulty

Professional Required 5/5

Required Part

Wiring Harness
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