Question about 1999 Chevrolet Silverado 1500

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Heater fans Runs all the time

The heater fans runs all the time even when truck is turn off, causing to run the battery down.

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  • okidiver2001 Jan 15, 2009

    I work out of my home state. And while I was away my wife put the window down to get the mail and it wouldn't go back up. She later went out there to start it and the battery was dead. She charged it up, starteed it and let it run for about an hour. Later the battery was dead again.

    When I got home I hooked the charger up and instantly the blower motor kicked on and will NOT shut off. how can I fix this???

  • okidiver2001 May 11, 2010

    This doesn't sound like a valid answer... just removing the resister will break the current. The problem (Logicicaly) would be a short in the ignition switch. As that is what would cause power to continue on to the blower motor with the key off.

  • Terry Engel May 11, 2010

    Are you talking about the inside heater blowers/fans?

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  • Master
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Check your resister in the duct just in front of the blower! Follow the wire from your blower to it and un plug it

Posted on Jan 01, 2009

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