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Home >> Mitsubishi >> 1987 >> Precis Base >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heater System >> Testing >> Mode Control Lever

Mode Control Lever

Place mode control lever in "DEFROST" position. Make sure air flows from defroster ducts. Place mode lever in "HEAT" position; air should flows from heater outlet. With mode control lever in "VENT" or "BI-LEVEL" position, ensure air flows from registers.