F18
Liebherr
Blower / Circulation Fan Fault
Dryer displays F18; fan noise may be abnormal or airflow seems weak.
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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
Blocked blower wheel with lint or foreign objects, Worn or seized blower motor, Loose fan wheel on shaft, Wiring fault to blower motor
How to Fix / Troubleshooting
Safety first: Unplug the dryer. Sharp edges may be present inside the cabinet; wear gloves.
- Access blower housing: Remove the rear or side panel to reach the blower assembly connected to the air duct.
- Inspect blower wheel: Check for lint clumps, socks, or other items lodged in the wheel. Remove any obstructions carefully.
- Check fan rotation: Spin the blower wheel by hand. It should turn freely without wobble. Replace if cracked or loose on the shaft.
- Test blower motor: Verify that the blower motor receives power during operation (only if you are competent and can do so safely). If powered but not turning, the motor is likely faulty.
- Replace components as needed: Install a new blower motor or fan wheel if defective, reassemble ducts, and test airflow.
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Repair Difficulty
Medium
3/5
Required Part
Blower Motor and Fan Wheel
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