HVAC Systems · Blower Components
Blower Wheel
The squirrel-cage centrifugal wheel, driven by the blower motor, whose curved fins pull air across the coil/heat exchanger and push it into the ducts. Dirt buildup or imbalance sharply reduces airflow.
Common uses
Moving conditioned air through the system, supply-air delivery
Common symptoms
- Weak airflow
- Vibration or wobble
- Whistling or out-of-balance noise
Common repairs
- Wheel cleaning
- Wheel replacement
- Set-screw and balance check
Related terms
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