Why is my Carrier Weathermaker SXI furnace blower running at half speed. The funace will ignite but will not run at full speep.
hvac1000
Nov 28, 2008, 12:06 PM
It could be the capacitor for the blower motor.
It could be dirty air filter.
It could be to many vents closed or a restriction/obstruction on the return air .
It could be the motor is going bad also.