What Does An HVAC Damper Motor Do?
TechXpert verified by Ken Kontra
A damper motor is an electrical device that controls the dampers in your HVAC system to manage and maintain temperature. Dampers are valves that regulate airflow through your ducts to control temperature room by room. A damper motor is what drives your dampers to open and close, allowing hot and cold air to circulate as needed.
What You Should Know About Dampers
Dampers are moveable plates that are responsible for directing and regulating air flow throughout your system, and these are controlled by your damper motor. HVAC dampers are found in your air distribution pipes and work with your HVAC zoning system to help regulate the temperature in your home.
Unlike opening and closing vents, dampers only circulate air that’s needed, which helps your system work more efficiently. The change in airflow capacity allows each room to reach it’s set zone temperature.
The damper motor is the key to your zoning system’s success. Like a conductor on a train, your damper motor controls the process: it’s responsible for deciding what path your air takes. Without a functioning damper motor, your system can’t control airflow between each zone.
My Damper Motor Isn’t Doing Great — So What?
If your damper motor isn’t working properly, then it’s likely your HVAC zoning system isn’t working properly either. In that case, it’s time for a replacement: you’ll want to call in an HVAC technician to help replace your damper motor.
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