What Does A Hvac Heater Blend Door Actuator Do

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.

What does a hvac heater blend door actuator do.

These obstructions can include. And what causes them to mess up. A certain method to move a blend door a couple of systems would take more than a little time and effort to control. There are other names such as temperature door etc.

If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. There usually is an actuator motor. 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. Long gone are the cables and rods jutting out of the firewall.

Ac delco hvac door actuator. If your vehicle is only releasing cold air or if you are not able to change the airflow it may be because of a malfunctioning actuator. A blend door is short for blend air door. Auto heat built in heating systems have pretty much been standard equipment on most automobiles since the 1950s and 1960s.

Motors modules that accomplish the job. In this video i explain how to replace the a c blend door actuator. Pen tooth pick small toy or bubble gum to name a few. A blend door actuator controls the temperature and the flow of the air in a car.

The blend door blends or mixes the hot air with the cold air. Hope y all enjoy this video and let me know what y all t. A somewhat common problem in vehicles a few years old the heat and air system in your vehicle may be the victim of a faulty blend door actuator. If you cannot move the blend door an obstruction has gotten in the way of the door movement which will make the new actuator fail.

To operate the heater control valve or a vacuum unit pulling a. If you can t hear this change in air noise intensity there is a problem with the blend door actuator the blend door the climate control set or the circuit connecting them. 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.