Frigidaire
Door Switch Circuit Miswiring or Failure
Microwave interior light, fan, and turntable come on when the door is opened, or stay on when door is closed.
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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 door switch, Miswired door switches after prior repair, Shorted control board input, Broken switch actuator
How to Fix / Troubleshooting
Safety First: Unplug the microwave immediately; this is a safety-critical fault.
Steps:
- Do not use: Do not operate the microwave until the door switch system is repaired.
- Inspect switches: Access the door switch assembly and verify that each Frigidaire door switch is correctly wired and actuated only when the door is closed.
- Correct wiring: Compare wiring to the model-specific diagram (usually behind the grille or in the manual). Correct any miswiring.
- Replace faulty switches: Replace any switch that is stuck or not clicking properly.
Note: Because incorrect repair can create a radiation hazard, this job is best left to a professional.
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Repair Difficulty
Professional Required
5/5
Required Part
Door Switch Assembly
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