US Stove Mechanical Noise from Blowers or Auger

Furnace is excessively noisy during operation; rattling, grinding, or squealing sounds.

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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, Loose blower mounting hardware, Dry or worn auger bearings, Foreign object in blower wheel

How to Fix / Troubleshooting

Safety first: Turn off and unplug the furnace before inspecting moving parts.

Steps:

  • 1. Identify noise source: Listen carefully to determine if the noise comes from the convection blower, combustion blower, or auger area.
  • 2. Inspect blowers: Access each blower and check for loose mounting screws, contact between the wheel and housing, or debris in the wheel. Tighten hardware and clean as needed.
  • 3. Check auger assembly: Inspect the auger motor and shaft for excessive play. Worn bushings or bearings can cause grinding noises. Replace worn auger bushings or the auger motor.
  • 4. Replace noisy components: If a blower or motor squeals or grinds even after cleaning and tightening, replace the affected US Stove blower or auger motor assembly.
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Repair Difficulty

Medium 3/5

Required Part

Combustion Blower or Convection Blower or Auger Motor
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