What Does A Ac Heater Blend Door Actuator Do

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.

What does a ac heater blend door actuator do.

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. The blend door is controlled by a blend door actuator which can be a cable or an electric motor. Sometimes the fix needs recalibration and sometimes you need to replace the part that is broken. Both terms mean the same.

A blend door moves to vary the amount of air passing through the vehicle s heater core. Blend door and blend door actuator. 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. 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.

This commonly causes problems in most car s air conditioner and. If the door binds take it to a pro for replacement. With the combination of both systems the blend door actuator controls the conditioned air s temperature and leads it to the needed location. 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.

A blend door actuator is linked to an air control door pivot found on the last drive of the unit. A plastic gear set is frequently rotated from one side to another by the electric motor. The blend door is also referred to by some car makers as an air mix door. An actuator can go bad in of two ways.

However if it moves smoothly buy a new blend door actuator from the dealer or auto parts store. Mode actuator determines where the air will blow out of such as the floor vents the top vents or the defrosting vents that blow onto your windows and windshield. 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. An actuator can become faulty if the plastic gear set turns out to be fragile and it breaks.

Heater control actuator regulates flow of hot air when heater is engaged. First the electric motor can burn out rendering the unit non responsive so nothing changes when the temperature or. A sure way to move the blend door some systems took more than a little effort to operate. Blend actuator helps combined cool and warm air to produce the proper desired temperature.

An actuator moves the blend door automatically. What is a blend door.