A C Heater Blend Door Actuator

And what causes them to mess up.

A c heater blend door actuator.

An actuator can go bad in of two ways. In this video i explain how to replace the a c blend door actuator. When the air is cool enough the door will be closed so that no heat would enter the passenger compartment. It is controlled by a blend door actuator which is a small electric motor.

Air door actuator replaces 15 73952 52495593 89018374 604 112 compatible with chevy gmc cadillac hummer 2003 2014 models hvac blend control actuator air heater blend door 4 5 out of 5 stars 392. A sure way to move the blend door some systems took more than a little effort to operate. 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. An actuator moves the blend door automatically.

First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or. After warming up the vehicle the blend door will be shifted to change just a part of the heated air to the cabin. As autos had more and more labor saving devices added as standard equipment heater and air conditioning controls could be operated with less effort when automakers started installing blend door actuators. Also called hvac actuators these small electric motors control the.

Blend door moves by a mechanical unit known as the actuator. The blend door or vent door mixes warm and cool air to be sent to your vents. 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. A c heater 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. 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.