Help. 06 H3 a/c head unit lights dont turn on and blowing hot air

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07-25-2014, 10:07 AM

amplango1

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Join Date: May 2014

Posts: 1

Help. 06 H3 a/c head unit lights dont turn on and blowing hot air

I have a 06 Hummer H3 3.5L. I put in an aftermarket radio and was trying to put in a relay to bypass the parking brake so I can use my pioneer appRadio mode. I didn’t not take the positive wire off the battery. When hooking up positive wire ( Orange ) from factory wire harness it touched the negative wire and saw a little spark. After that I had no power from the orang wire. So I went and looked under the hood and checked fuse #13 and it wasn’t blown. I checked all fuses and all where good. No blown fuses. I hooked up a direct line from Battery Positive with 10 amp fuse to radio. My radio works great, Now, Here is the real problem I’m having. Now keep in mind, The Power to the radio ( orange ) wire still has no power. I turn my A/C on and it blows out hot air. The orang light that goes on when you push the head unit to turn on A/C cool air doesn’t light up and the compressor doesn’t turn on. None of the ( orang ) lights turn on when I push the A/C head unit. My A/C blower works just fine. So I check All the relays and there fine. I checked the diodes and all is good. I unplugged all the connectors on the head unit and plugged them back in incase something came loss. Still, No cool air and no lights ( orang ) turn on. So does anyone have a clue on what might be the problem might be?

07-25-2014, 05:23 PM

happythree

Senior Member

Join Date: May 2012

Posts: 2,005

og wire fuse 38, 25 amp,,,look again and read volts on both sides of it.

its radio only,not air?

07-25-2014, 08:10 PM

Happy Hummer

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Join Date: Oct 2011

Location: Wisconsin

Posts: 1,393

I was honestly lost reading this.
Chris
Ac works?
Ac don't work?
Radio works?
Radio don't work?
How about take the radio out of the equation and just describe problem.
Chris