Beretta Fan or Inducer Noise / Mechanical Wear

Furnace produces a high-pitched whine or loud humming during 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 flue fan bearings, Loose fan wheel, Resonance in ductwork, Circulation fan motor wear

Safety: Isolate power before touching any moving parts.

Identify source: Remove access panels and carefully listen to determine if the noise comes from the flue fan, circulation blower, or ducts.
Inspect fan wheels: Check that the impellers are tight on their shafts and not rubbing the housing. Tighten mounting screws if loose.
Clean dust buildup: Heavy dust on blades can cause imbalance and noise. Clean with a brush and vacuum.

If bearings are noisy or there is excessive play, the fan motor assembly should be replaced by a technician.

Medium 3/5

Flue Fan Assembly

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