Honeywell
Stalled Motor or Locked Compressor
Dehumidifier hums loudly but neither the fan nor compressor starts; then shuts off.
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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, Locked compressor rotor, Failed start components, Low line voltage
How to Fix / Troubleshooting
Safety: Unplug immediately to prevent overheating and fire risk.
Steps:
- Fan check: Try spinning the fan by hand with power off. If it is stuck, replace the fan motor.
- Compressor check: If the fan spins freely but the hum comes from the compressor, test the compressor windings and start relay as described in compressor fault procedures.
- Line voltage: Verify the outlet provides correct voltage with a meter; low voltage can cause motors to stall.
Recommendation: Locked compressors in portable dehumidifiers usually warrant replacement of the entire unit.
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Repair Difficulty
Professional Required
5/5
Required Part
Fan Motor Assembly
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