Heater fan still running after taking key out.

[Grey poupon]

So far it hasn't cause any grief, but after going through some deep water fairly quickly a couple of days ago, this has been going on. After it sits a little while while and i go back and check it it's back to normal. I don't know much about electrics and this is weird problem to me anyway. Just posting to see if anyone sees something obvious i need to do. Like i said, it hasn't caused me any grief yet and I've turned the fan right down every time I've left the truck so far.

 

[Happy Hummer]

Well, we'll need more specific information. I'm uncertain where to begin.

 

[Korby7]

If the problem persists, try looking at the blower control module. I had never heard of the issue before but just did a repair a few months ago on my neighbors 2500 with a similar problem. Apparently it has affected multiple GM vehicles. Replacement module shown in this video did the trick.

 

[Grey poupon]

If the problem persists, try looking at the blower control module. I had never heard of the issue before but just did a repair a few months ago on my neighbors 2500 with a similar problem. Apparently it has affected multiple GM vehicles. Replacement module shown in this video did the trick.

What a great video. Seems to be exactly what's going on. I'm going to keep an eye on it for a couple of days, and probably end up doing this. It seemed to coincide with the water-crossing. A CEL came on the next day but didn't stick around.
Thank you.

 

[Grey poupon]

Well, we'll need more specific information. I'm uncertain where to begin.

It sounds like Korby7 has the right idea. Its a 2010 adventure 5cyl auto. The water wasn't that deep but lots of splash. It's been raining here all week so nothing is really drying out.

 

[alrock]

Can't help with the issue but I always appreciate the dog pictures.

 

[Jeepwalker]

Remove your switches and test them. Could be that.

I tested mine once (after noticing in the scanner they were bad) and 4 out of the 5 were faulty.

If they're good, at least you ruled it out...

 

[Grey poupon]

That did cure itself after about 2 days or less. I'm sure it was about the water crossing. I also got a new battery about the same time, and finally got some proper clamp-on battery terminals.

 

[Jeepwalker]

Sorry ....I meant *door* switches (in post above).

Glad it self-healed. I wish all problems were like that

 

[Doc Olds]

Do you have a sunroof?

 

[Jeepwalker]

Me? My H3 does

 

[Grey poupon]

Sorry ....I meant *door* switches (in post above).

Glad it self-healed. I wish all problems were like that

Thank You. I just got a new back driverside switch from Amazon, but then I saw they had an OEM one for the same price, so I'm waiting for that to come.