Haier
Overheating or burning of internal components or food residue
Microwave produces 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
Burned food residue on cavity walls, Damaged waveguide cover, Overheating magnetron or wiring, Foreign object inside cavity
How to Fix / Troubleshooting
Safety: Stop the microwave immediately, open the door, and unplug it. If there is visible fire, keep the door closed and disconnect power; do not open the door until the fire is out.
- Inspect interior: Look for burned food, packaging, or plastic. Remove any charred material.
- Clean thoroughly: Clean the cavity, ceiling, and turntable components with a non-abrasive cleaner. Pay attention to the waveguide cover.
- Check for damage: If you see melted plastic, burned wiring, or a charred waveguide cover, do not use the microwave until inspected by a technician.
- Test cautiously: After cleaning and cooling, test with a cup of water. If burning smell persists, discontinue use and seek service.
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Repair Difficulty
Medium
3/5
Required Part
Waveguide Cover / Internal Wiring
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