2004 Gmc C2500 Heater Blower Quit Working You Test Controls

2004 GMC C2500
200,000 MILES
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heater blower quit working. how do you test controls
Nov 14, 2012 at 2:46 PM
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HMAC300
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see if poer is going to resistor and realay b blower. if it is it may be a blower relay, in underhood fuse box or it could be blower itself.
Nov 14, 2012 at 2:51 PM
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