dO
Frigidaire Professional
Door Switch or Door Ajar Detection Fault
Display shows dO or door icon; alarm beeps indicating door open even when doors appear closed.
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Possible Causes
Misaligned door, Failed door switch, Broken door switch wiring, Magnet/sensor misalignment on French doors
How to Fix / Troubleshooting
Safety First: Unplug the refrigerator before removing door switch assemblies.
- 1. Check door closure: Ensure nothing is blocking the doors. Verify that gaskets contact the cabinet all around.
- 2. Inspect door switches: Locate the plunger or magnetic door switches at the top or sides of the cabinet. Press each switch manually; the interior lights should turn off and the alarm should stop.
- 3. Replace faulty switch: If a switch does not change the light or alarm state, remove the trim, disconnect the switch, and install a new Frigidaire‑specified door switch.
- 4. Check wiring: If switches test good but the error persists, inspect wiring in the hinge area for breaks or pinched wires.
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Repair Difficulty
Easy
2/5
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