System Airflow Description - Dual Automatic Temperature Control: Off
WARNING: This page is about a different car, the 2005 Mercury Mountaineer and 2005 Ford Explorer. However, it is still accessible from the selected car via links, so may be relevant.
When OFF is selected:
- The air inlet 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, closing off airflow to the passenger compartment outlets.
- The heater control valve is at full vacuum, preventing the flow of hot coolant to the heater core.
- The blower motor is OFF.