F12
Miele
Door Contact Communication Fault
Display shows F12; refrigerator may not recognize door status or may leave interior lights off/on incorrectly.
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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
Failed door contact sensor module, Broken harness in door hinge area, Faulty input circuit on main control
How to Fix / Troubleshooting
Safety: Disconnect power before working around door hinges and wiring.
Steps:
- Observe behavior: Check whether the interior light and fan respond correctly when the door is opened and closed.
- Inspect hinge area: On some Miele models, door contact wiring runs through the top or side hinge. Look for pinched or broken wires.
- Check contact module: If the model uses a separate door contact module, remove its cover and verify connectors are secure.
Because this fault involves low‑voltage communication circuits, if basic wiring checks do not resolve it, contact a Miele technician for further diagnosis.
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Repair Difficulty
Medium
3/5
Required Part
Door Contact Sensor Module
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