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-   -   My heater/AC fan wont shut off (https://www.chevyhhr.net/forums/problems-service-repairs-42/my-heater-ac-fan-wont-shut-off-8747/)

ezeerider 06-17-2007 12:17 PM

My heater/AC fan wont shut off
 
My fan control has four click positions but only two speeds. The first three positions are low and the last position is high. It wont turn off completely. Has anyone else encountered this? I am taking it to the dealership next week to see whats up.

Black Beauty 06-17-2007 12:20 PM

No, sounds like you`re headed in the right direction though, the Dealer.

Chizzer 06-17-2007 12:23 PM

Sounds like a wiring thing, maybe? Definitely see the dealership about it.

nss79 06-17-2007 03:24 PM

I had a similar problem last fall. I could not turn the fan off or it would turn on by itself. The dealer found a fried resistor and replaced, but after I picked it up and took it home I found that it still did it. I took it back in and they could not find anything else wrong. They attributed it to the afterblow feature possibly being turned on, which I found given the use and outside temp that it could not have been that. I was going to take it back in, but then it quit doing it and has worked fine since.

Black Beauty 06-17-2007 03:29 PM

The afterblow feature?

GDZHHR 06-17-2007 03:29 PM


Originally Posted by nss79 (Post 160184)
I had a similar problem last fall. I could not turn the fan off or it would turn on by itself. The dealer found a fried resistor and replaced, but after I picked it up and took it home I found that it still did it. I took it back in and they could not find anything else wrong. They attributed it to the afterblow feature possibly being turned on, which I found given the use and outside temp that it could not have been that. I was going to take it back in, but then it quit doing it and has worked fine since.

nss79, sorry about the small hijack, but we're having a BBQ on the 30th in St. Louis, check out the regional thread if you're interested.

and now back to our regularly scheduled thread.............

nss79 06-17-2007 03:40 PM


Originally Posted by Black Beauty (Post 160187)
The afterblow feature?

Afterblow is by default off. It comes on after the car is turned off to dry up moisture in the system when the AC has been used and it is at least 70 degrees outside. I found all this out after they told me this was the cause. All I know is that I wasn't using AC in November and it wasn't 70 degrees.

Black Beauty 06-17-2007 05:14 PM

Well I`ve been driving with the a/c on lately, when I pull in the garage, it`s pretty quiet, if there`s some sort of fan blowing, after I turn the ride off, it`s mighty quiet.

nss79 06-17-2007 11:42 PM

The afterblow feature comes from the factory off, so unless you had it turned on your car won't do it. I was told it may have been activated when they worked on it the first time--then I found out how the feature actually worked.

JimZ_HHR 06-17-2007 11:58 PM


Originally Posted by nss79 (Post 160318)
The afterblow feature comes from the factory off, so unless you had it turned on your car won't do it. I was told it may have been activated when they worked on it the first time--then I found out how the feature actually worked.

That sounds like a lot of smoke up someone's A$$


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