Applies to:

Replacing the Blower

Overview

Procedures for blower motor replacement are the same on both blowers.

Disconnect the electrical supply to the cabinet.
Remove the access panel from the top of the cabinet.
Remove the three screws that fasten the blower motor to the blower housing.
Cut the two blower wires approximately 2” away from the blower.
Lift the blower motor and wheel out of the blower housing.
If replacing motor, fan, and wheel as an assembly, install new assembly in reverse order. If replacing just the motor, continue onto step 7.
The fan can be pulled off the shaft of the motor.

The blower motor can be ordered as an assembly. This will include the motor, the fan, and the wheel. Normally, just the motor would need replacing if found to be defective. If you are just replacing the motor, continue with the following procedures.
With a 5/64” Allen wrench, loosen the set screw that holds the blower wheel to the motor shaft and remove the wheel.
Remove the four screws that hold the blower cover to the motor.
Install a new blower motor in reverse order.

When replacing a blower motor, be sure that the motor coil is positioned away from the heater when reinstalling.
Be sure to put the spacers back between the blower cover and the motor.
Reconnect the two wires to the new blower by stripping the wire ends and fastening with wire nuts.
Replace the access panel to the module.
Reconnect the electrical supply to the cabinet.