What Does A Hvac Heater Blend Door Actuator Do

If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit.

What does a hvac heater blend door actuator do.

Sometimes the fix needs recalibration and sometimes you need to replace the part that is broken. These days it s electrically driven 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. Motors modules that accomplish the job.

To operate the heater control valve or a vacuum unit pulling a. Hope y all enjoy this video and let me know what y all t. Long gone are the cables and rods jutting out of the firewall. 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.

A blend door is short for blend air door. 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. A certain method to move a blend door a couple of systems would take more than a little time and effort to control. In this video i explain how to replace the a c blend door actuator.

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. And what causes them to mess up. 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. Pen tooth pick small toy or bubble gum to name a few.

There usually is an actuator motor. These obstructions can include. Ac delco hvac door actuator. A blend door actuator controls the temperature and the flow of the air in a car.

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. 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. The blend door blends or mixes the hot air with the cold air.