AEG
Electrical Arcing or Insulation Breakdown
Microwave smells of ozone or a sharp electrical odor during use, even without visible smoke.
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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
Arcing at high-voltage connections, Cracked high-voltage diode insulation, Damaged magnetron antenna, Loose wiring terminals
How to Fix / Troubleshooting
Safety warning: Stop using the microwave immediately. Unplug and do not attempt to run it again until inspected.
- Step 1 – External check: Confirm no arcing is occurring inside the cavity (see sparks/arcing fault).
- Step 2 – Internal inspection (technician): A technician should inspect high-voltage connections, magnetron antenna, and waveguide for signs of arcing or carbon tracking and replace damaged components.
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Repair Difficulty
Professional Required
5/5
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