ac only blowing hot air

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  #1  
Old 12-13-09, 11:11 PM
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Location: Houston
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ac only blowing hot air

I have a 2000 buick le sabre.My heater had not been working so far this winter. Lastnight I noticed the air coming from the vents was warm even tho nothing was turned on. I turned it on and it is blowing hot air. Now no matter what temp or setting... defrost, ac, vent it only blows HOT. Id much rather have the heat quit again if the ac will only work, haha. any suggestions?
 
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Old 12-17-09, 09:12 AM
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Location: Kingsport, TN
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You could start by checking the fuses. There should be one for the HVAC system. Always start with the simplest things first.

Many cars have valves in the hot water line that allows coolant from the radiator to flow to the heat exchanger in the dashboard. Valves can go bad or what operates them might not be functioning correctly.
 
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