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Friedrich MW30C3G Blower Wheel
The main blower wheel is a finned wheel that is traditionally used to produce an airflow throughout a dwelling. Once in a while it is also called a squirrel cage due to the similarity of an oversized hamster running wheel. Regardless of what you call it, it is a necessary aspect of a heating and cooling system that needs proper air pressure within the ductwork.
Symptoms that your blower wheel probably is in dire straights
- If a piece of the cage has been malformed and it seems out of balance
- Grinding sound is audible as the HVAC begins
- You see less than usual air going through the vents
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