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Home >> Cadillac >> 1969 >> Calais Not Available, Automatic Trans >> Repair and Diagnosis (Single Page) >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic Temperature Control >> Control System Components & Functions >> Heater Turn-on Switch
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Heater Turn-on Switch

Located in the front of the right hand cylinder head the switch senses engine water temperature and does not permit system turn-on until water temperature reaches 120°F.

NOTE: This switch may be bypassed by owner control settings. See "Figure".
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