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: Repeatedly resetting a tripping breaker is dangerous. Unplug the microwave and do not use it until the fault is identified.
User checks:
- 1. Try a different outlet: Plug the Blomberg microwave into a different dedicated circuit to rule out a weak breaker (only if safe and convenient).
- 2. Observe timing: Note whether the breaker trips immediately when pressing Start or after a few seconds. Immediate trips often indicate a direct short.
Technician-only: Inspect and test the high-voltage capacitor, diode, magnetron, and line filter for shorts. Replace defective components following proper high-voltage safety procedures.
Repair Difficulty
Required Part
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