Defrost Mode Door
The position of this door determines whether or not air is directed to the defrost vents. The door is controlled by a vacuum actuator. Vacuum is applied to the actuator through a vacuum selector valve on heater control panel.
The position of this door determines whether or not air is directed to the defrost vents. The door is controlled by a vacuum actuator. Vacuum is applied to the actuator through a vacuum selector valve on heater control panel.