1996 Ford F250 Owner's Manual - Page 88

dots and HI beside the H control knob. The HI position provides the most air flow. Air flow selections VENT Use VENT to bring outside air through the instrument panel registers. You can heat the air in this position by rotating the temperature knob into the RED area. The air CANNOT be cooled below the outside temperature regardless of the temperature knob setting. FLOOR Air flow will be to the floor when FLOOR is selected. The air can be heated by rotating the temperature knob into the RED area. MIX Select MIX to get air to the floor and windshield defrosters at the same time. V DEF Select V DEF to obtain maximum air flow to the windshield. Rotate the temperature knob into the RED area for the air temperature required to defrost. Rotate the H knob to increase or decrease the air flow. Operating Tips The following tips will help you to get the most satisfaction from your heater system. u In humid weather, select V DEF. This will help to prevent windshield fogging. After a few minutes, you may select another airflow position. vehicle, always drive with the heater system turned on. u To prevent humidity buildup inside your 86