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Home >> Buick >> 1987 >> LeSabre Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> A/C-Heater System - Automatic >> Component Functions >> Control Head Operating Modes >> "AUTO" Mode
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"AUTO" Mode

In this mode everything is controlled automatically by various inputs. The system will adjust to guide temperature range selected and stay there, maintaining the temperature with least possible noise level. This mode also has the capability of any fan blower speed, any air inlet position, and any air outlet position required to reach and maintain selected guide temperature range.