What Does A Ac Heater Blend Door Actuator Do

The blend door is also referred to by some car makers as an air mix door.

What does a ac heater blend door actuator do.

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. Install it and test the operation. First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or. Blend actuator helps combined cool and warm air to produce the proper desired temperature.

An actuator can go bad in of two ways. As of 2013 the air conditioning and heating systems in many automobiles share a lot of elements such as the duct work under the dash the control of temperature on the dash s face. 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. The blend door is controlled by a blend door actuator which can be a cable or an electric motor.

An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks. A blend door actuator controls the temperature and the flow of the air in a car. There s a chance the mode or blend door actuator may be good but the door or linkage is binding so check it before you replace the actuator photo above. 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.

What is a blend door. As the blend door open or closes to the heat or cold position it opposes the flow of air coming from the blower motor and makes a change in the intensity of the air noise. If the door binds take it to a pro for replacement. A plastic gear set is frequently rotated from one side to another by the electric motor.

A blend door actuator is linked to an air control door pivot found on the last drive of the unit. Blend door and blend door actuator. However if it moves smoothly buy a new blend door actuator from the dealer or auto parts store. Both terms mean the same.

With the combination of both systems the blend door actuator controls the conditioned air s temperature and leads it to the needed location. A sure way to move the blend door some systems took more than a little effort to operate. An actuator moves the blend door automatically. This commonly causes problems in most car s air conditioner and.

A blend door moves to vary the amount of air passing through the vehicle s heater core. Heater control actuator regulates flow of hot air when heater is engaged.