Ford F-550 Owner's Manual page 40

Climate Controls
: Distributes outside air through the instrument panel vents and
center console vents (if equipped).
: Distributes outside air through the instrument panel vents, floor
vents and center console vents (if equipped).
O (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,
floor vents and demister vents.
: Distributes outside air through the windshield defroster vents and
demister vents.
Operating tips
• To reduce fog build up on the windshield during humid weather, place
the air flow selector in the
• To reduce humidity build up inside the vehicle, do not drive with the
air flow selector in the O (OFF) position.
• Do not put objects under the front seats that will interfere with the
airflow to the rear seats.
• Remove any snow, ice or leaves from the air intake area at the base of
the windshield.
• To improve the A/C cool down, drive with the windows slightly open
for 2–3 minutes after start up or until the vehicle has been "aired out."
For maximum cooling performance (MAX A/C) in MAX A/C mode:
• Move the temperature control to the coolest setting.
• Set the fan to the highest speed initially, then adjust in order to
maintain comfort.
To aid in side window defogging and demisting in cold weather:
1. Select .
2. Select A/C.
3. Set the temperature control to maintain comfort.
4. Set the fan speed to highest setting.
5. Direct the outer instrument panel vents towards the side windows.
40
2007 F-250/350/450/550 (f23)
Owners Guide (post-2002-fmt)
USA (fus)
position.