Proline Overheating Electrical Component or Contaminant on Heater

Freezer emits a strong chemical or burning smell during operation.

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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 or grease burning off defrost heater, Overheating main control PCB, Failing compressor winding insulation, Foreign object touching heater

How to Fix / Troubleshooting

Safety first: If you smell burning plastic or see smoke, unplug the freezer immediately and do not continue to use it.

Steps to investigate:

  • 1. Visual inspection: With power disconnected, inspect the rear control box, compressor area, and interior for signs of scorching or melted plastic.
  • 2. Check defrost area: Remove the inner rear panel and look for plastic items or packaging that may have fallen onto the defrost heater.
  • 3. Clean dust: Vacuum dust from the condenser and compressor area to reduce overheating.

Important: If any component shows signs of burning or charring, have a qualified technician replace the affected parts before using the freezer again.

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Repair Difficulty

Hard 4/5
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