CTC Blower Motor or Wheel Noise

Furnace produces a high-pitched whine or squeal during blower operation.

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.

Possible Causes

Worn blower motor bearings, Blower wheel rubbing housing, Loose blower mounting, Debris in blower wheel

Safety first: Turn off power before working on the blower.

Steps:

Remove the blower compartment door and visually inspect the CTC blower assembly.
Check for debris in the blower wheel and remove any foreign objects.
Verify that the blower housing mounting screws are tight and that the wheel is centered and not rubbing the housing.
Spin the wheel by hand; if you feel grinding or excessive play, the motor bearings are likely worn and the blower motor should be replaced.

Medium 3/5

CTC Circulating Blower Motor

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