HEATER ONLY SYSTEM
(IF EQUIPPED)
1.
Fan speed adjustment:
Controls
the volume of air circulated in the
vehicle.
2.
Temperature selection:
Controls the temperature of the
airflow in the vehicle.
3.
Air flow selections:
Controls the direction of the airflow in the
vehicle. See the following for a brief description on each control.
:
Distributes outside air through the instrument panel vents.
:
Distributes outside air through the instrument panel vents and the
floor vents.
(OFF):
Outside air is shut out and the climate system is turned off.
:
Distributes outside air through the floor vents.
:
Distributes outside air through the windshield defroster vents and
floor vents.
:
Distributes outside air through the windshield defroster vents and
demister vents. Can be used to clear the windshield of fog and thin ice.
Operating tips
•
To reduce fog build up on the windshield during humid weather, place
the air flow selector in the
position.
•
Do not put objects under the front seats that will interfere with the air
flow to the back seats.
•
To reduce humidity build-up inside the vehicle, do not drive in
the
(OFF) position.
•
Under normal weather conditions, do not leave the airflow selector
in
(OFF). This allows the vehicle to breathe using the outside air
inlets.
•
Remove any snow, ice or leaves from the air intake area at the base of
the windshield.
To aid in side window defogging/demisting in cold weather:
1. Select
.
2. Adjust the temperature control to maintain comfort.
2009 F-250/350/450/550
(f23)
Owners Guide, 2nd Printing
USA
(fus)
Climate Controls
80
