What causes a blend door actuator to fail?
What causes a blend door actuator to fail? If you cannot move the blend door an obstruction has gotten in the way of the door movement which will make the new actuator fail. These obstructions can include: pen, tooth pick, small toy or bubble gum to name a few. If the door is stuck the heater plenum with need to be removed and the problem resolved before installing the new unit. 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...