Hvac Blend Door Actuator

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.

Hvac blend door actuator.

When some autos are assembled at the factory. 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. The blend door or vent door mixes warm and cool air to be sent to your vents. A certain method to move a blend door a couple of systems would take more than a little time and effort to control.

In this video i explain how to replace the a c blend door actuator. Also called hvac actuators these small electric motors control the flow and blend of hot and cold. Like any mechanical device a blend door actuator will eventually fail. Replacement parts to fix the problem may be as little as a few dollars but the labor charges to replace it may go into the hundreds.

And what causes them to mess up. Hvac actuator recalibration procedure for gm trucks and suvs author sparky posted on august 12 2011 june 10 2016 categories actuators vent control tags actuators cadillac chevrolet and gmc trucks recalibration. This is due to the actuator being buried within the heat and air assembly behind the dashboard. It is controlled by a blend door actuator which is a small electric motor.

Blend door actuator in some car models manufactured before 1980 the blend door might have been activated by metal cables which were directly connected to the lever of temperature control on the dash. First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or. Learn how to reset the hvac actuator with acdelco. Hope y all enjoy this video and let me know what y all t.

When you turn the knob on your dash to the desired temperature the actuator moves the blend door to achieve the proper mix. Increase your driving comfort with an a c heater blend door actuator 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.