Hansa
No Heating – High Voltage or Magnetron Failure
Microwave runs (light, fan, and turntable operate) but food does not heat up.
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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
Failed magnetron, Defective high-voltage capacitor, Open high-voltage diode, Faulty high-voltage transformer
How to Fix / Troubleshooting
Safety first: Unplug the microwave. The high-voltage section is extremely dangerous; internal repairs must be done by a qualified technician.
- Confirm symptom: Place a cup of water inside and run on full power for 2 minutes. If the water remains cold, heating is not occurring.
- Check basic operation: Verify that the door closes properly and that the timer counts down normally. If everything appears normal except heating, the issue is almost certainly in the high-voltage circuit.
- Avoid further use: Do not continue running the microwave without heating; this can overheat internal components.
- Arrange professional service: A technician should test the magnetron, HV capacitor, diode, and transformer, and replace the failed component with the correct Hansa part.
Warning: Do not attempt to replace high-voltage parts yourself; improper handling can cause severe injury or death.
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Repair Difficulty
Professional Required
5/5
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