Rheem
Indoor Blower Mechanical Noise
Rheem indoor unit makes a loud squealing or grinding noise when the blower runs.
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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 blower motor bearings, Blower wheel rubbing housing due to misalignment, Foreign object in blower housing, Loose blower wheel set screw
How to Fix / Troubleshooting
Safety first: Turn off power to the air handler before removing blower access panels.
- Inspect blower wheel: Check for debris inside the blower housing and remove any foreign objects.
- Check alignment: Ensure the blower wheel is centered in the housing and not rubbing. Adjust motor mounts if needed.
- Tighten set screw: Locate the blower wheel hub on the motor shaft and tighten the set screw securely.
- Replace motor if noisy: If the motor shaft has play or the noise is clearly from the motor bearings, replace the blower motor with the correct Rheem part.
Warning: An unbalanced or rubbing blower can damage the motor and control board over time.
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Repair Difficulty
Medium
3/5
Required Part
Rheem Indoor Blower Wheel / Blower Motor
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