F13
Liebherr
Fan Speed Feedback / Tachometer Fault
Display shows F13; interior fan may run at incorrect speed or not at all, and temperature distribution is poor.
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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 tachometer signal from DC fan motor, Damaged fan wiring harness, Faulty fan driver on control board, Obstructed fan causing stall
How to Fix / Troubleshooting
Safety first: Unplug the refrigerator before accessing fan assemblies.
Step-by-step:
- Access the affected fan: Remove shelves or drawers and the inner rear panel to reach the fan.
- Check for obstructions: Ensure no packaging, food items, or ice are blocking the fan blades.
- Spin test: Turn the fan by hand; it should rotate smoothly. Any grinding or stiffness indicates a failing motor.
- Inspect wiring: Verify that the multi-wire connector to the fan is secure and that wires are not damaged.
- Replace fan: If the motor is noisy, stiff, or not receiving proper voltage (advanced check), replace the fan assembly with a Liebherr-compatible DC fan.
- Reassemble and test: Restore power and confirm that airflow is restored and F13 does not return.
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Repair Difficulty
Medium
3/5
Required Part
DC Evaporator Fan Motor with Tachometer Feedback
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