Step1: Turn off all electrical power and verify the unit is fully de-energized before servicing.
Step2: Remove the rear or side access panel and label all motor wiring connections for correct reassembly.
Step3: Disconnect electrical leads and carefully unbolt the old motor from its mounting plate.
Step4: Install the new motor, ensuring proper alignment with the blower wheel and secure mounting.
Step5: Reconnect wiring, tighten all terminals, reinstall the panel, restore power, and test airflow and rotation for proper operation.