Microwave trips the household circuit breaker or blows a fuse when starting a cooking cycle.
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.
Possible Causes
How to Fix / Troubleshooting
Safety: Do not repeatedly reset the breaker and restart the microwave. Unplug the appliance immediately.
User-level: There is no safe internal repair for this symptom. Confirm that the circuit is not overloaded with other high-power appliances.
Technician-level:
- Inspect the mains filter board and wiring for shorts or burn marks.
- Test the high-voltage capacitor, diode, and magnetron for shorts.
- Replace any shorted components and check the internal fuse rating according to Balay specifications.
Because this involves mains and high voltage, repairs must be performed by a qualified technician.
Repair Difficulty
Required Part
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