Microwave interior light, fan, and turntable run when the door is closed, even without pressing Start.
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
Danger: A microwave that runs with the door closed and no command may be unsafe. Unplug it immediately.
- Do not use: Leave the unit unplugged until inspected. Running in this condition can cause overheating or radiation leakage if interlocks are compromised.
- Check door operation: With the unit unplugged, open and close the door several times. Ensure it latches and unlatches smoothly.
Required repair: A Bosch technician must inspect the door switch assembly and control board relays. Do not attempt to bypass or adjust internal switches yourself.
Repair Difficulty
Required Part
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