HVAC blower motor with oil in bushings, squirrel cage fan, and d…

Blower Repairs
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Occasionally, the blower needs maintenance that's not mentioned in the manual. The squirrel cage needs to be washed (to remove dirt, fungus, mold, hair, lint, etc. that may cause imbalance); the evaporator core fins need to be cleaned (of the same things, using a brush if light, or garden hose & shop vac if heavy); and the motor bushings need to be oiled (I use motor oil diluted with penetrating oil for a few hours on one side, then flip & add more for the other).

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Owner caption January 2022 · Photo 0 of 5000