Microwave tripping breaker? A faulty door switch is often the cause. This safety switch ensures operation only when door is closed. Moderate DIY repair.
Do-It-Yourself Stories from Customers like You
Bosch hmv5052u/01 microwave tripping breaker when door opened. Steve D. • Plymouth , MA • June 11, 2022
Similar to other stories on here, the microwave was repeatedly tripping the circuit breaker, usually when opening the door. Plugged microwave into a different outlet/circuit, and problem traveled to that breaker, so definitely issue within the appliance. Turned out to be door interlock switch.
This model has 3 switches: 2 x AP4512903 (00617228, the Primary and Secondary interlock switches) and 1 x AP4512904 (00617229, the Monitor switch). It was only the Monitor switch that was defective, but...
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