Hvac Blend Door Actuator

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.

Hvac blend door actuator.

And what causes them to mess up. 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. 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. Learn how to reset the hvac actuator with acdelco.

It is controlled by a blend door actuator which is a small electric motor. First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or. When you turn the knob on your dash to the desired temperature the actuator moves the blend door to achieve the proper mix. An actuator can go bad in of two ways.

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. This is due to the actuator being buried within the heat and air assembly behind the dashboard. Like any mechanical device a blend door actuator will eventually fail. Blend door actuator replaces 89018365 604 106 52402588 fits 1994 2012 chevrolet chevy gmc silverado 1500 and 2500 tahoe sierra air door actuator hvac blend control act 4 3 out of 5 stars 168.

In this video i explain how to replace the a c blend door actuator. The blend door or vent door mixes warm and cool air to be sent to your vents. 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.

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. 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.