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04-22-2012, 02:58 PM
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Hummer Veteran
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Join Date: Jun 2007
Location: Northern VA
Posts: 148
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NO >> AC/FAN/AIR/HEAT (3 Blinking Knobs)
I've got the original model w/ 79K miles, after taking a pit stop at the petrol station, My AC/FAN/AIR/HEAT didn't work. I starting the engine, all 3 cabin climate control knobs blink in unison.
I consulted the user's manual, checked the fuse box for the #13 fuse labeled as the AC/AIR fuse. It is a #10 red fuse, but was not expired and in good condition.
Is there anything else I need to research or is there a catastrophic failure of the HVAC and need to head to the Repair $hop?
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04-23-2012, 07:42 PM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
Posts: 3,789
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Re: NO >> AC/FAN/AIR/HEAT (3 Blinking Knobs)
I would pop off dash panel and check the plug in clips first.
link from search
http://www.elcovaforums.com/forums/s...eater+resistor
good luck
__________________
H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
Last edited by fourfourto : 04-23-2012 at 07:45 PM.
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04-25-2012, 07:25 PM
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Hummer Authority
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Join Date: Jun 2005
Location: Key Largo
Posts: 1,174
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Re: NO >> AC/FAN/AIR/HEAT (3 Blinking Knobs)
I remember several people having problems with the fan resistor when the H3 came out. It gets hot and doesn't work properly - as I remeber they weren't very expensive, just a pain to get to next to the blower.
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04-26-2012, 11:42 PM
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Hummer Veteran
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Join Date: Jun 2007
Location: Northern VA
Posts: 148
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Re: NO >> AC/FAN/AIR/HEAT (3 Blinking Knobs)
It was @ $120 / including labor.
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04-27-2012, 10:33 PM
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Hummer Guru
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Join Date: Sep 2005
Location: fort salonga ny
Posts: 3,789
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Re: NO >> AC/FAN/AIR/HEAT (3 Blinking Knobs)
Quote:
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Originally Posted by algy
It was @ $120 / including labor.
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Fan resistor 
__________________
H3 gray adventure,brushguard,hood handles,sunroof,steps,crossbows,smokers package,window/sunroof visor,Airbrushed spare tire cover,mudflaps,K&N filter,SS Hummer insert,Hummer rubber mats,cargo rubber mat + shade,12 volt airhorn,eclipse nav/dvd/rear camera/mini remote,autostart,12 volt fridge,high beam garage remote,underhood air compressor, taillight bezels ,clinometer ,trailer brake and hitch.
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