What does a HVAC blend door actuator do?
What does a HVAC blend door actuator do?
The blend door actuator is a small electric motor in your car that controls your car’s climate control system. It looks like a small plastic box with a few plastic gears on the inside. It is so small that you could easily fit it in one hand if you were attempting to remove it.
How to test blend door actuator, climate control, heater?
In some cases you can manually test the blend door actuator in others you can use computer for the diagnostics. There are usually a few blend door actuators that are part of the hvac system. This way you will know which blend door is bad and needs to be replaced. ► Like Us on FACEBOOK: https://www.facebook.com/worldmechani…
What is an air blend door actuator made of?
An air blend door actuator is made of a plastic gear set, a small electric motor, and a plastic housing. The climate control computer receives feedback information via a door position sensor in the unit.The actuator is responsible for moving the air direction and temperature doors inside the heater plenum;
What is the role of the climate control computer?
The climate control computer receives feedback information via a door position sensor in the unit.The actuator is responsible for moving the air direction and temperature doors inside the heater plenum; their job is to manage mode settings like re-circulation modes, mid vent, defrost and fresh air, floor as well as temperature.
What should I do if my blend door actuator is not working?
Afterward, your job is to check the blend door actuator by using the climate control if it is blowing hot and cold air. In most cases, it should be fixed, and if it doesn’t, there is no harm in taking your car to a professional repairer. Sometimes, there can be a major issue, and that can be confirmed after an in-depth check.
How does an air blend door actuator work?
An air blend door actuator is constructed from a plastic housing, a small electric motor and a plastic gear set. A door position sensor is also incorporate into the unit to send feed back information to the climate control computer.
How does a climate control actuator work on a car?
The actuator contains a logic circuit that interprets that voltage and powers the motor to move the door to the corresponding position. The GM C-67 system found in W-body cars uses this design. In addition to an electronic Blend door actuator, the GM C-67 system uses a solenoid box to operate the Mode and Recirc doors through vacuum motors.
How can I tell if my blend door actuator is bad?
To test the blend door operation and too double check that you are changing the correct actuator motor turn the blower motor on and work the door in each way. You will be able to feel the air change temperature or vent level. Compare the bad actuator to the new unit.
What does a dumb head climate control actuator do?
Dumb Head, Smart Actuator. In this type of system, the actuator contains all the components necessary for operation with the exception of the input potentiometer, which is mounted on the control head. The actuator is supplied with battery voltage, which it uses to drive the motor.
