Ford 1996 Taurus Manual page 101

You can override the fan speed at any time. If
you use the button to control the fan speed, the
EATC will continue to control the temperature
but you control the fan speed. To return to auto
fan control, press the AUTO button. If you are
operating in one of the override functions (S,
MAX A/C, etc.), automatic fan control will
continue unless you press the fan speed button.
To return to automatic fan control, press the
AUTO button. The EATC will return to
automatic operation. If you want to return to
any override function, press the button for that
function. The fan speed will continue to be
automatically controlled.
Manual override buttons
Your EATC has six buttons which allow you to
make special selections. The buttons are located
along the bottom edge of the EATC and allow
you to determine where the air will be
discharged. Pressing any override button
changes the air discharge location only. It does
not affect the ability of the system to control
temperature or the fan speed. Return to fully
automatic operation by pushing the AUTO
button.
MAX A/C button
The MAX A/C feature allows for faster cooling
because air is drawn from inside the vehicle.
Using inside air causes the fan to sound louder
which is normal for this selection. The display
window will change to indicate MAX A/C and
the airflow will be from the instrument panel
registers. To exit, push AUTO or any of the
other five manual override buttons.
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