Strong burning, electrical, or chemical smell during or after microwave operation.
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.
Possible Causes
How to Fix / Troubleshooting
Safety: If you smell burning plastic or electrical insulation, unplug the microwave immediately and do not use it.
User steps:
- Inspect interior: Look for burned food, melted plastic, or discoloration on the waveguide cover. Clean thoroughly with mild detergent and water.
- Ventilate: Leave the door open to air out the cavity.
- Test with water only: After cleaning and cooling, heat a cup of water for 1–2 minutes. If the burning smell returns without food present, internal components may be overheating.
Persistent electrical or burning smells indicate a failing internal component (magnetron, transformer, wiring) and require professional diagnosis.
Repair Difficulty
Required Part
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