What Does A Ac Heater Blend Door Actuator Do

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.

What does a ac heater blend door actuator do.

However if it moves smoothly buy a new blend door actuator from the dealer or auto parts store. A blend door moves to vary the amount of air passing through the vehicle s heater core. The blend door is also referred to by some car makers as an air mix door. Heater control actuator regulates flow of hot air when heater is engaged.

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. This commonly causes problems in most car s air conditioner and. A plastic gear set is frequently rotated from one side to another by the electric motor. 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. A blend door actuator controls the temperature and the flow of the air in a car. With the combination of both systems the blend door actuator controls the conditioned air s temperature and leads it to the needed location. 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.

Both terms mean the same. The blend door is controlled by a blend door actuator which can be a cable or an electric motor. A blend door actuator is linked to an air control door pivot found on the last drive of the unit. If the door binds take it to a pro for replacement.

What is a blend door. An actuator moves the blend door automatically. Blend actuator helps combined cool and warm air to produce the proper desired temperature. Sometimes the fix needs recalibration and sometimes you need to replace the part that is broken.

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. Blend door and blend door actuator. An actuator can go bad in of two ways. A sure way to move the blend door some systems took more than a little effort to operate.

Install it and test the operation. 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.