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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
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.
2008 F-150
Owners Guide (post-2002-fmt)
USA
Climate Controls
position.
81
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