GE Overheating Component or Electrical Short

Microwave emits a burning smell, electrical odor, or smoke during or shortly after 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

Food or grease burning inside cavity, Failing magnetron overheating, Shorted wiring harness, Overheated control board or fan motor

How to Fix / Troubleshooting

Immediate safety: Stop the microwave, open the door, and unplug it immediately if you smell burning or see smoke.

  • Inspect interior: After cooling, check for burned food, packaging, or grease. Clean thoroughly.
  • Check filters and vents: Clean grease filters and ensure vents are not blocked.
  • Do not reuse if odor is electrical: If the smell is sharp or chemical (like burning plastic or insulation), do not operate the unit again until inspected by a technician.
  • Professional diagnosis: A technician should inspect the magnetron, wiring, fan motor, and control board for signs of overheating or arcing.
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Repair Difficulty

Professional Required 5/5

Required Part

Wiring Harness
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