Heater not working

[Cash9300]

So I go out to the store tonight and I turn the heat on full blast and nothing happens it worked fine yesterday any ideas


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[CaddyStrophic]

No experience with it myself, but I've heard there are these resisters that can go out pretty easily and cause your HVAC not to work. That or maybe heater core. Notice any smell of coolant or anything like that?

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[Cash9300]

No smell of coolant I do know there was a recall about the switches that operate the hvac I wonder if that or a fuse could be the guilty party


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[Cash9300]

It seems like the blower isn't coming on


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[Odimus]

Did you check the wiring or fuses? There is a current recall for the blower motor wiring...

 

[Cash9300]

Not yet going to wait until morning


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[Cash9300]

Well checked the fuses and none are blown so I guess my next day off will be spent at the dealership for the recall


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[Graham2990]

Had this same issue on my colorado but it's never plagued my H3 as of yet.

If you aren't getting anything out of the blower motor at all, or it's only functioning on position 4 this is what you need.

http://www.amazon.com/ACDelco-15-80647-Original-Equipment-Conditioning/dp/B000IZ3K4U

Ten minutes worth of work, may save yourself some time vs. killing a morning at the dealer.

 

[650Hawk]

Well checked the fuses and none are blown so I guess my next day off will be spent at the dealership for the recall


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Dealership can't fix the recall issue yet, as GM has not yet come up with a repair. It's still pending.

 

[2nd2no1]

I had a similar problem with the blower motor not working several years ago and the blower motor resistor is on the passenger side underneath the glove compartment. When i checked the resistor the plastic/wire had melted, I wiggled the wires and the blower motor turned on. I ended up cleaning up the resistor and applying electrical tape to the wires. I haven't any problems with the resistor or blower since then.

 

[Boerwarrior]

My HVAC blower stopped working a week ago. Called dealer last week and they ordered a new harness to be ready for my appointment today.Just got back from dealer and they replaced the harness under recall warranty free of charge. Connector pins were burnt out. I will still have to take it back once the recall bulletin is released, but at least the blower is working again.

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[Cash9300]

Couldn't get ahold of the dealership today cause of work going to call tomorrow and see when I can take it in


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[Cash9300]

Got an appointment Friday to get it checked out


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[650Hawk]

My HVAC blower stopped working a week ago. Called dealer last week and they ordered a new harness to be ready for my appointment today.Just got back from dealer and they replaced the harness under recall warranty free of charge. Connector pins were burnt out. I will still have to take it back once the recall bulletin is released, but at least the blower is working again.

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That's great. Most dealers are still charging for fixing this issue until the recall "fix" is released, with th caveat that owners may be reimbursed at that time. Nice to see a dealer step up and do right.

 

[Cash9300]

Well I took it in today and was told I would have to pay 200 dollars to have it fixed and might get reimbursed after gm releases the fix for the recall so I just brought it home and now I'm waiting on the wife to get home from work and the parts store


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[Cash9300]

10 minutes of work to replace the resistor and it works 28 buck is a lot better then 200


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[CaddyStrophic]

That's awesome news, man! Glad it was something cheap and easy!

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[Cash9300]

Yeah I was to


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[Cash9300]

Well it's out again waiting to hear back from hummer customer service tomorrow


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[awalsh]

its probably the harness.. my resistor burnt out too and I switched it out and it still works fine but im sure next time it goes out its going to be the harness

http://www.amazon.com/Dorman-TECHoi...42&sr=1-2&keywords=hummer+h3+resistor+harness

that should work but I heard its a royal pain to replace

 

[Cash9300]

I had to order the connector since advanced auto switched out the resistor and it wasn't the problem this time but hey I have a spare resistor


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[The Green Lantern]

So, have you fixed the problem?

I'm browsing the site, hoping to find some info.......My heater is currently not working, but sometimes it comes on ok. Everything seems working fine, just there's no heat coming out. I had the recall replaced and fixed a year ago and all are working, but the last two weeks.

 

[USMC_TOP]

Check your coolant level first


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[4speedfunk]

My heater is currently not working

This could mean many things. Do you mean the fan?...or do you mean you have no heat?

 

[beadyeye]

I'm having the same issue. My blower is working but all I get is cold air. Any ideas?


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