Samsung
Outdoor Fan or Compressor Mechanical Fault
Outdoor unit makes loud grinding, squealing, or rattling noises.
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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
Worn outdoor fan motor bearings, Loose fan blade, Debris in fan guard, Failing compressor
How to Fix / Troubleshooting
Safety warning: Turn off power at the disconnect before inspecting the outdoor unit.
- Step 1 – Inspect fan guard: Remove leaves, twigs, or plastic that may be contacting the fan blade.
- Step 2 – Check fan blade: With power OFF, wiggle the fan blade. It should be firmly attached to the motor shaft with no wobble.
- Step 3 – Spin test: Rotate the fan by hand. Grinding or stiffness indicates bad motor bearings.
- Step 4 – Listen to compressor: If noise comes from the compressor body (deep knocking or metallic sounds), shut down the unit and call a technician.
- Step 5 – Technician tasks: Replacing the outdoor fan motor or compressor requires professional service.
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Repair Difficulty
Medium
3/5
Required Part
Outdoor Fan Motor
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