Challenge Mechanical Noise / Vibration Fault

Dehumidifier makes loud rattling or grinding noises during operation.

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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

Loose fan blade on motor shaft, fan blade hitting housing, loose compressor mounting bolts, worn fan motor bearings

How to Fix / Troubleshooting

Safety: Unplug before inspecting moving parts.

Steps:

  • Inspect fan area: Remove front and rear covers to access the fan. Check that the fan blade is firmly attached to the motor shaft and not rubbing against the shroud.
  • Tighten or reposition: Tighten the fan hub screw or clip. Adjust the shroud or grille if it is contacting the blade.
  • Check compressor mounts: Inspect the rubber grommets under the compressor. Tighten loose mounting bolts and replace cracked grommets with compressor mounting grommets.
  • Replace noisy fan motor: If the noise is from the motor bearings (squealing or grinding), replace the fan motor assembly.
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Repair Difficulty

Medium 3/5

Required Part

Fan Blade or Fan Motor Assembly
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