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Temperature Control Lever

Temperature control lever regulates temperature of air entering passenger compartment through a cable-operated blend-air door. When lever is in COLD position, air by-passes heater core to provide maximum cooling. See Fig 1.

When lever is in intermediate positions, air chilled by evaporator core and heated air from heater core are mixed to provide air of desired temperature. When lever is in HOT position, A/C system should be off to provide maximum heating.

Fig 1: Identifying Manual A/C-Heater Control Panel
G94J37258Courtesy of GENERAL MOTORS CORP.
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