Hvac Heater Blend Door Actuator Function

When a car is cold the driver might want to maximize the heat to come in a passenger area.

Hvac heater blend door actuator function.

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. When a vehicle is cold you may desire maximum heat to enter the passenger compartment. Then premium gpd aftermarket auto parts are right up your alley. 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.

Doors can control warm air cold air blending recirculated fresh air control or dual zone splitting. 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. Want to keep your vehicle performing reliably. 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. 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. The motors can move the doors into many different positions or just two. Hvac heater blend door actuator by gpd.

An hvac heater blend door actuator is what moves the blend door to divert warm or cool air into differ ent passages within the hvac system and keep the passenger cabin at the desired temperature. And what causes them to mess up. 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. The ac actuator is located underneath the dashboard attached to air distribution doors in the hvac box.