What commonly causes microwave tripping the circuit breaker?
For a microwave with this symptom, the most relevant component families are Door switch / monitor switch, High-voltage capacitor, High-voltage transformer, Magnetron, Line filter / power cord.
Component families associated with this symptom
These are component types commonly connected with this malfunction. They are not model-specific part-number recommendations.
Door switch / monitor switch
A failed or mistimed monitor-switch circuit can trip the breaker when the door operates.
High-voltage capacitor
A shorted capacitor can create excessive current draw.
High-voltage transformer
An internally shorted transformer can trip the supply breaker.
Magnetron
A shorted magnetron can overload the circuit.
Line filter / power cord
Shorted line-side components can trip protection immediately.
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We will use this symptom knowledge to look only for verified-fit parts for your model that match the relevant component functions.
Functions being matched: Door switch / monitor switch, High-voltage capacitor, High-voltage transformer, Magnetron, Line filter / power cord