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Intermittent Door Switch or Relay Operation
Microwave makes a clicking sound and stops after a few seconds of operation
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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
Loose or failing door switch, Worn door latch, Failing control relay, Overheating thermal cut-out cycling
How to Fix / Troubleshooting
Safety: Unplug the microwave before inspection.
User-level checks:
- Open and firmly close the door several times, then try a short cook cycle.
- Listen for clicks from the door area; inconsistent clicks may indicate a bad switch.
Technical steps:
- Test all door switches for intermittent operation by wiggling the connectors while checking continuity.
- Inspect the door latch bracket for wear.
- If door components are good, inspect the control board relays and thermal cut-outs.
Replace any faulty switch, latch, or control board as needed.
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Repair Difficulty
Hard
4/5
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