Blower Motor

This is a motor inside inside the air handler.  It moves the air from inside of your home across the evaporator coil while cooling, or the heater while heating.  This motor spins a blower wheel which effectively moves the air.  If a blower motor fails, it will cause the evaporator coil to freeze up.  This is simply because the coil gets much colder than it would with the blower motor working.

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air conditioning blower motor installation