What corrective action should be taken when a zone damper actuator motor is seized?

When a zone damper actuator motor is seized, the appropriate corrective action is to replace the motor and then reactivate and test the damper. A seized motor typically indicates that it is no longer functioning properly, which can lead to inadequate airflow and temperature control in the affected zone.

Replacing the motor ensures that the damper can operate smoothly again, allowing the HVAC system to maintain efficient performance. After replacement, reactivating and testing the damper is crucial to confirm that the new motor functions correctly and that the damper opens and closes as intended. This step ensures that any issues are resolved before considering further actions.

Other options may suggest less effective solutions, such as lubrication, which may not address the underlying problem of a seized motor. Replacing the entire zone system is excessive and unnecessary when only the motor is faulty. Resetting the system without addressing the motor issue would leave the problem unresolved. By following the correct course of action, you ensure that the HVAC system operates as designed.