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Posted on Jan 02, 2017
It's the HVAC blower resistor in the air plenum under the glovebox. New resistor and wiring harness is about $70 at the Hummer Dealer.
Posted on Oct 07, 2009
I had the same problem and sloved it with the help of google images, hummer blower motor resistor. Under the glove box the blower motor resistor can be found. It comes loose and the blower will work at times. When I reached under and pushed the connector in, it works fine. It was fixed within minutes. I am a gal with a Hummer and save myself a huge dealer bill. Good Luck!
Posted on May 01, 2010
SOURCE: 2006 H3 Hummer fan problem
Hi if your internal fan not work in any position well i fixed up myself easy and save your money.
locate the fan motor air just outside right courtesy drawn document in front of passenger. go from down and look up you will see a motor with a big connector white with 2 screw secure inside the motor block. loose the two screws and pull out gently the connector from motor fan block. you will see a green multiresistor connected with this big connector. Usually the first + voltage connector is burnet out. disconnect the connector pull from resistor and check for any burn. in my case the first pin was burned out completely
you can buy another connector or you can clean the burned connector take out form connector weld a small copper cable of 5 mm dia from resistor to the burn cable and reconnect the connector without buy a new one. after replace again the resistor in the hole of motor blow with the 2 screw.
Done all work again without buy another new connector.
Gabriel from Italy Turin
H3 hummer 2007
loveling one and Humvee owner
Posted on Jun 11, 2010
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