F31
KitchenAid
Motor Control or Speed Sensing Fault
F31 appears; washer-dryer may not spin correctly or may stop with an unbalanced load.
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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
Defective motor control board, intermittent tachometer signal, loose motor harness, main control logic error
How to Fix / Troubleshooting
Safety first: Unplug the unit before accessing internal components.
- Inspect motor harness: Remove the rear panel and check the wiring from the motor to the control board. Reseat connectors and look for damaged wires.
- Check motor and tach: Test motor windings and tachometer resistance per service manual. Replace the motor if readings are out of spec.
- Motor control board: If your KitchenAid combo uses a separate motor control module, inspect it for burnt components. Replace if damaged or if diagnostics indicate a control failure.
- Run diagnostic mode: After repairs, enter diagnostic mode (per service manual) and run a spin test to verify that F31 is cleared.
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Repair Difficulty
Hard
4/5
Required Part
Motor Control Board
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