Amana
Door Switch Interlock Miswiring or Failure
Microwave light, fan, and turntable come on when the door is closed, even without pressing Start.
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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.
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Possible Causes
Stuck or welded door switch contacts, Misaligned door switch bracket, Incorrectly wired replacement switch, Shorted control relay
How to Fix / Troubleshooting
Safety First: Unplug the microwave immediately. This is a serious safety issue.
- Do not use the unit: Operating a microwave with faulty door interlocks can be dangerous.
- Inspect door switches: Access the door switch cluster and check for signs of overheating or melted plastic.
- Verify wiring: Compare switch wiring to the Amana wiring diagram. Correct any miswired connections.
- Replace faulty switches: Replace any switch with welded or stuck contacts. If the problem persists, the control board relay may be stuck and the board will need replacement.
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Repair Difficulty
Professional Required
5/5
Required Part
Door Switch Assembly
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