Whynter
Stalled Motor or Seized Compressor
Dehumidifier hums loudly but neither fan nor compressor starts
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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 compressor, Locked fan motor, Failed start capacitor, Low line voltage
How to Fix / Troubleshooting
Safety first: Turn OFF and unplug the unit immediately to prevent damage.
Steps to check:
- Verify fan spins freely: With power disconnected, spin the fan by hand. If it is stuck, the fan motor may be seized.
- Check power source: Plug into a different outlet to rule out low voltage.
Persistent loud humming without start usually indicates a serious motor or compressor issue. Do not continue to run the unit; contact a professional technician.
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Repair Difficulty
Professional Required
5/5
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