Remove the Blower Wheel Obstruction

Remove the Obstruction

A blower wheel obstruction may be as simple as the blower rubbing on the blower housing due to a loose set screw.  ….  On occasion, the entire blower may have come apart in which case the blower itself will need to be replaced. …  If the furnace or air handler seems to have developed some excessive vibration, you may want to check inside the blower wheel for a rodent, the equipment installation instructions that were left in the equipment, duct insulation, or missing balance weights.

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