Heater/ac Fan Issue

By rayjo
August 21, 2011 in 1999-2013 Silverado 1500 & Sierra 1500

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rayjo

Posted August 21, 2011

2007 Sierra Classic - Regular Cab

My heater/ac fan has a mind of its own. Last week it turned on by itself, on high and stayed on for about ten minutes. Turning the knob from off to high did nothing. The last couple days it's been coming on occasionally but it only stays on for a few seconds.

I thought relay, but can't find one that's labeled for the fan.

Any ideas or help would be appreciated.

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