Russell Hobbs
Overheating Component or Food Residue Burning
Microwave emits a burning smell or smoke 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
Food or grease burning on cavity surfaces,Burnt waveguide cover,Overheating wiring or components,Failed magnetron or transformer
How to Fix / Troubleshooting
Safety first: Stop the microwave immediately, unplug it, and keep the door closed if there is visible smoke. Do not inhale fumes.
- 1. Inspect interior: Once safe, open the door and check for burnt food, packaging, or splatter. Clean thoroughly.
- 2. Check waveguide cover: If the smell comes from one side wall, inspect the waveguide cover for burn marks. Replace if damaged.
- 3. External smell: If the smell seems electrical (plastic or insulation burning) and comes from the back or sides, do not use the microwave.
- 4. Internal inspection (advanced): A technician should inspect wiring, the magnetron, and transformer for overheating or damage and replace any burnt components.
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Repair Difficulty
Hard
4/5
Required Part
Waveguide Cover
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