Whirlpool
Compressor Start Device or Condenser Fan Noise
The refrigerator is making a loud buzzing or humming noise from the rear, especially when the 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
Failing compressor start relay, loose condenser fan blade, debris in the condenser fan, or vibrating compressor mounting.
How to Fix / Troubleshooting
Safety First: Unplug the refrigerator before accessing the rear compartment.
Steps:
- Identify the source: Remove the rear panel and listen carefully (with power on briefly) to locate the noise source—compressor vs. fan.
- Check the fan: With the power off, spin the condenser fan blade. Tighten or replace it if it is loose or rubbing on the shroud. Remove any debris.
- Inspect the start relay: If the noise is a repeated loud buzz followed by a click, replace the compressor start relay and overload protector.
- Check compressor mounts: Ensure the rubber grommets are intact and the compressor is not contacting the frame directly.
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Video Guide
2 VideosRepair Difficulty
Medium
3/5
Required Part
Condenser Fan Motor
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