How does a blend door work on an AC heater?
That control commands the blend door actuator to open or close partially or fully to allow air from the heater core to mix with the cold air from the AC evaporator. When the AC isn’t in use, the air still flows through the evaporator, but is not chilled. It then flows through the heater core where it is heated.
How to repair an air inlet blend door?
Set the fan speed to MAX and manually de-select the recirc button, there should be an audible difference in the climate control temperature motor noise. If the volume stays the same then the air inlet blend door is suspect. To rectify follow the workshop procedure outlined below. WORKSHOP PROCEDURE 1. Open door. 2. Turn ignition ‚ON™. 3.
How do you replace a blend door actuator?
In some cases, the blend door actuator can be accessed by removing the glove box. Replacement can be as simple as removing three screws and swapping the motor. However, other vehicles are more complicated and require the removal of the console and portions of the dash.
How is the recirculation door actuator connected to the a / C heater?
The recirculation door actuator is interchangeable with the actuators for the blend and mode-air doors. The recirculation door actuator is connected to the A/C-heater control through the vehicle electrical system by a dedicated two-wire lead and connector of the instrument panel wire harness.
Can a heater be removed from a blend door?
If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. 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.
In some cases, the blend door actuator can be accessed by removing the glove box. Replacement can be as simple as removing three screws and swapping the motor. However, other vehicles are more complicated and require the removal of the console and portions of the dash.
What is the blend door on a car heater?
The blend door is a small plastic door inside your car that regulates the flow of air through your heater core.
What to do if your blend door blower is stuck?
If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. 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.
That control commands the blend door actuator to open or close partially or fully to allow air from the heater core to mix with the cold air from the AC evaporator. When the AC isn’t in use, the air still flows through the evaporator, but is not chilled. It then flows through the heater core where it is heated.
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;
Can you replace a heater door blend actuator?
Our inventory of A/C heater door blend actuators includes replacement units that exceed OEM specifications and performance. You don’t need to struggle through the installation when your replacement part has been specially designed to work with your specific vehicle.
How to turn a blend door on and off?
Insert actuator shaft into A/C air temperature control door and secure A/C electronic blend door actuator to A/C evaporator housing with four retaining screws. Install electrical connector to bracket on A/C electronic blend door actuator. Install instrument panel insulator and console panel if equipped. Connect battery ground cable.