Challenge
Fan Motor Failure
Dehumidifier powers on but fan does not run; compressor may or may not start.
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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
Seized fan motor, failed fan capacitor (if separate), broken fan blade or obstruction, faulty fan relay or triac on PCB
How to Fix / Troubleshooting
Safety: Unplug the unit. Beware of sharp metal edges and moving parts.
Steps:
- Check for obstructions: Remove front and rear grilles. Ensure nothing is blocking the fan blade. Spin the blade by hand; it should move freely.
- Inspect fan blade: Replace a cracked or loose Challenge fan blade if it wobbles or is damaged.
- Test fan motor: With the unit unplugged, disconnect the fan motor leads and measure winding resistance. An open circuit indicates a failed motor.
- Check fan capacitor (if fitted): Some models use a separate run capacitor. A bulging or leaking capacitor should be replaced with a matching fan motor capacitor.
- Replace fan motor: If seized or electrically open, install a new Challenge fan motor assembly, transferring the fan blade and mounting brackets as needed.
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Repair Difficulty
Hard
4/5
Required Part
Fan Motor Assembly
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