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Home >> Chevrolet >> 1972 >> Chevelle Base, Not Available, 6.6L Eng VIN S, Not Available Trans >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Components & Functions >> Programmer >> Feedback Potentiometer

Feedback Potentiometer

Indicates to the amplifier system the position of the temperature door. Movement of the vacuum motor stem changes the resistance of this potentiometer.