Question about 2000 Chevrolet Silverado 1500

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Heat overrides the a/c

I have a 2000 Silverado and when I slightly move the heat control to the red side and when I go back to blue for cool and run the a/c...the heat will continue to go thru the vents and overrides the a/c. Does anyone out there have an idea what could be wrong?

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  • mck1326 Oct 22, 2008

    The problem as described happened once or twice before, fiddle with various AC controls and restart vehical, fixed. After many weeks of reliable operation problem has resurfaced. Now blows ambient air, if switch is moved to red area, blows HOT. Continues Hot air after switch moved back to cold.(counter clockwise).

    Suspect I may have more than one issue.

  • Anonymous Oct 29, 2008

    Mine is a 2003 Silverado, but I have the same problem.

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I'm sure you have already checked this...but just make sure the button is pushed for Recirculate and not Vent when you run your A/C. You don't want the outside air coming into the cab...the A/C will run much cooler when it's taking in the air from inside your cab rather than trying to cool the hot air coming thru the vent from the outside.

Posted on Oct 16, 2008

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