Operation CHARM
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Pontiac
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2000
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Grand AM V6-3.4L VIN E
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Repair and Diagnosis
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Heating and Air Conditioning
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Description and Operation
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Components/Sensors
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Control Assembly, HVAC
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Temperature Control
Temperature Control
The center knob on the
control assembly
changes the temperature of the air coming through the system. Turn this knob toward red area (clockwise) for warmer air. Turn it toward blue area (counterclockwise) for cooler air.