Furnace Blower

Furnace and air handler blower issues: loud operation, blower that will not stop, dirty squirrel cage wheels, limit switches and control board faults.

Wheel puller fitted to a stuck blower wheel on a motor shaft
By longwell / August 21, 2026 / Fan Engineering Guides

Removing a Stuck Blower Wheel (Puller Trick)

A hub that has spent years on a shaft in a damp cabinet does not come ...

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Technician testing an ECM module separately from the motor
By longwell / August 21, 2026 / Fan Engineering Guides

Bad ECM Module vs Bad Motor: How to Tell

ECM faults split three ways: the module, the motor or the system aroun...

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Furnace blower running continuously with control board access panel open
By longwell / August 21, 2026 / Fan Engineering Guides

Furnace Blower Won’t Turn Off — Fix

A blower that runs continuously is usually being told to, either by a ...

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