Question about 2001 Chevrolet Silverado

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Heater/ac switch speeds 1 and 2 don not work in 99 Silverado

I have a 99 Chevy Silverado (new style) and the speeds 1 and 2 on the heater/ac fan control switch do not work but works fine on speeds 3, 4, and 5. How do I fix?

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  • parageorge Feb 25, 2009

    I have the same problem only my 1,2 & 3 speeds do not work.

  • Anonymous Apr 25, 2009

    I have a 2003 silverado , and 1and 2 speed on the heater do not work.

  • Alan Dewey
    Alan Dewey May 11, 2010

    Sounds like blower resistor circuit board, or switch. Do you have a schematic?

  • Anonymous Mar 20, 2014

    cig.and rear ac,heater and radio control ranel don't work

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You need a resister found under your air duct by the passenger floor under dash board auto zone sells these for about 25.00 you may as well buy cabin air filters while your at it . 1 of the screws will be a pain to install back into the duct work I left mine out didn,t make a difference . you might have to order it as they are a comman item oh you will need a vacuum to clean up mess from cabin air filters .this is not a hard job .

Posted on Feb 28, 2009

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