System Airflow Description - Dual Automatic Temperature Control: Off
WARNING: This page is about a different car, the 2003 Lincoln Aviator. However, it is still accessible from the selected car via links, so may be relevant.
When OFF is selected:
- The recirculation door vacuum control motor is at full vacuum, closing off outside air to the passenger compartment.
- The defrost door vacuum control motor is at full vacuum and the floor door and panel door vacuum control motors are at no vacuum.
- The heater control valve is at full vacuum, preventing the flow of hot coolant to the heater core.
- The blower motor is OFF.