1996 Mercury Sable Owner's Manual - Page 127

Fan speed button Your EATC automatically adjusts the fan speed to the existing conditions. You must press AUTO for automatic fan speed operation. To control the fan speed yourself, use the button which will cancel the automatic fan speed control. The button is located at the left side of the EATC control panel. It is marked H. Press the (-) side for lower speeds. Press the (+) side for higher speeds. When you press the fan speed button, the fan speed will go to manual control. The display window will show the word FAN, H and a series of dots along with the selected temperature and operating function. The fan display 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. 100