Step1: Disconnect power at breaker and apply lockout/tagout before servicing.
Step2: Remove blower access panel and note all wiring connections carefully.
Step3: Disconnect wiring and remove old motor from mount and shaft coupling assembly.
Step4: Install new motor, align shaft properly, and secure mounting bolts firmly in place.
Step5: Reconnect wiring per diagram, ensure proper grounding and secure all terminals tightly.
Step6: Restore power and test clockwise rotation, airflow operation, and listen for abnormal noise.