Step1: Ensure power is turned off and disconnect the unit from electricity.
Step2: Remove the access panel to reach the existing fan motor.
Step3: Disconnect all wiring and label connections for correct reinstallation.
Step4: Loosen mounting bolts and carefully remove the old motor.
Step5: Position the new motor and secure it with mounting bolts.
Step6: Reconnect wiring according to labels and manufacturer instructions.
Step7: Replace the access panel and restore power.
Step8: Test the fan motor for proper operation and listen for unusual noises.