Beko 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 overheating insulation

How to Fix / Troubleshooting

Safety first: Stop the microwave immediately, unplug it, and keep the door closed to smother any internal flames if present. If smoke is heavy, ventilate the area.

  • 1. Inspect cavity: Once safe and cool, open the door and check for burnt food, packaging, or grease. Clean thoroughly.
  • 2. Check waveguide cover: If the mica cover is burnt or blackened, replace it before further use.
  • 3. Smell from rear or sides: If the burning smell seems to come from the back or sides, internal components may be overheating. Do not use the microwave until inspected by a technician.

Warning: Persistent burning smell without visible food residue indicates a serious internal fault.

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Repair Difficulty

Hard 4/5

Required Part

Mica Waveguide Cover
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