F9
Frigidaire
Door Switch or Latch Error
Microwave displays F9 and may shut down or not 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
Misaligned door latch, Failed primary or secondary door switch, Broken door latch hook, Loose door switch mounting bracket
How to Fix / Troubleshooting
Safety First: Unplug the microwave. Door switch circuits are safety-critical; never bypass them.
Steps:
- Check door closure: Ensure the door closes fully and evenly. Look for sagging or misalignment.
- Inspect latch hooks: Open the door and inspect the plastic latch hooks on the door for cracks or breaks.
- Access door switches: Remove the control panel and, if needed, the side cover to access the door switch assembly near the latch openings.
- Check switches: Verify that each switch clicks when the door is opened/closed. Loose or misaligned switches can cause F9.
- Replace parts: Replace any defective Frigidaire door switch or door latch assembly. Ensure the switch bracket is firmly secured.
Note: Incorrectly installed door switches can create a safety hazard. If unsure, use a professional technician.
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Repair Difficulty
Hard
4/5
Required Part
Door Switch Assembly
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