York
Blower or Inducer Bearing Failure
Furnace produces a high-pitched whine or screeching noise 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
Worn blower motor bearings, Worn inducer motor bearings, Loose blower wheel, Misaligned pulley (older belt-drive units)
How to Fix / Troubleshooting
Safety: Turn off power before touching moving parts.
- Isolate noise source: Remove the blower door and briefly run the furnace to determine if the noise comes from the main blower or the inducer motor.
- Inspect blower: Check that the blower wheel is tight on the motor shaft and not rubbing the housing. Tighten set screws if loose.
- Lubrication: Most modern York blower and inducer motors are permanently lubricated and cannot be oiled. If bearings are noisy, the motor or assembly must be replaced.
- Professional replacement: Have a technician replace the noisy motor with a York-approved part to maintain airflow and safety ratings.
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Repair Difficulty
Hard
4/5
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