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Home >> Buick >> 1987 >> Electra 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 >> "ECONOMY" Mode

"ECONOMY" Mode

In this mode, the A/C compressor will not run. The system will try to adjust to the guide temperature range that has been selected. However, it cannot cool the vehicle colder than outside ambient temperatures. This mode is automatic and determines fan blower speed and air outlet positions from various inputs. All incoming air into the module is from outside.