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Hummer 2006 rear heater not working - Hummer Cars & Trucks

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Is it not getting heat or is the fan not blowing? Either way you're going to have to dig down through all the limo bs to expose blower motor and heater box then it depends on what does not function. If fan then you will need to test for power at the fan connector. If no heat check control valve that lets hot water into the core. If power at fan but does not blow replace fan if no power, check resistor card for short. If no power there test switch.

Posted on Mar 29, 2015

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6ya6ya
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Posted on Jan 02, 2017

  • 2 Answers

SOURCE: 2006 H3 Hummer AC/Heater Fan Motor

I brought my 2006 H3 in to the dealer for the same thing. My blower stopped working all together but it started as an intermittent problem. He said he had to replaced a diode or resistor either behind the switch on the dash that controls the fan or on the fan motor itself. Have not had a problem since but that was only about 4 months ago.

Posted on Apr 09, 2009

abdoush
  • 12 Answers

SOURCE: change light on 2006 hummer h2

it can be easily changed by removing the plastic cover then u will see the light bulb, don't try to change it from the back, it wont open :)

Posted on Sep 08, 2009

  • 1 Answer

SOURCE: 2006 H2 Hummer Rear Door Hatch

is the child lock on?

Posted on Jun 11, 2010

  • 747 Answers

SOURCE: 2005 hummer h2 sut heater or ac lights up, works or does anything, and rear defrost nothing to

check you power source for blown fuses or bad breakers

Posted on Aug 31, 2012

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2006 H3 Hummer Ac/Heater fan motor will work great and run, the next time I start and drive not come on at all. Then sometimes after driving about 15 min just kick on and run and do great.


I brought my 2006 H3 in to the dealer for the same thing. My blower stopped working all together but it started as an intermittent problem. He said he had to replaced a diode or resistor either behind the switch on the dash that controls the fan or on the fan motor itself. Have not had a problem since but that was only about 4 months ago.

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