Hvac Heater Blend Door Actuator Function

Hvac heater blend door actuator by gpd.

Hvac heater blend door actuator function.

Doors can control warm air cold air blending recirculated fresh air control or dual zone splitting. If your car or truck passengers don t seem to be getting all the benefits of your vehicle s heating or a c system you could have a non working a c heater blend door actuator. A blend door is mounted within the heating and air conditioning system and pivots to divert warm or cool air into different passages within the system to keep the passenger area at the desired temperature. And what causes them to mess up.

Also called hvac actuators these small electric motors control the flow and blend of hot and cold air to the passenger areas by opening and closing the vent doors that let the air through. As the temperature lever is changed the internal potentiometer inside the hvac control head sends the appropriate voltage to the actuator now the potentiometer in the actuator compares its internal circuit voltage to the signal from the control head and when the two match the circuit voltage is turned off to the motor. The motors can move the doors into many different positions or just two. Then premium gpd aftermarket auto parts are right up your alley.

The ac actuator is located underneath the dashboard attached to air distribution doors in the hvac box. In general the blend door is built within the pivots and air as well as heating conditioning system to divert cool or warm air to different directions inside the system to keep the temperature in passenger compartment at the needed amount. When a vehicle is cold you may desire maximum heat to enter the passenger compartment. They are manufactured from superior quality materials and feature solid construction to ensure exceptional durability and wear resistance.

In this video i explain how to replace the a c blend door actuator. Hope y all enjoy this video and let me know what y all t. The electric motor that powers the actuator controls the flow and blend of hot and cold air within the cabin by opening and closing the vent doors that let the air through. A blend door actuator is made up of an electric motor that turns a plastic gear set in one direction or another which is connected to an air control door pivot at the final drive of the unit.