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International Comfort Products PA5530AKA2 Blower Wheel
The blower wheel has fins for maximum air force and is used to provide forced air through all the ducts. It can also be called a squirrel cage due to the understandable semblance of an oversized wheel a hamster might run on. No matter what you call it, it is definitely an important part of any HVAC system that needs a good amount of airflow.
Elements of a barely functioning main blower wheel
- A vibration heard as the system ramps up
- You detect less than usual air flow
- If one of the fins has been bent and seems unbalanced when it turns
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