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Old Sep 2, 2012 | 10:23 AM
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onehundred80
Senior Member
Joined: Apr 2006
Posts: 25,432
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From: Ontario
Default Re: Air Cond Fan Issue

Originally Posted by dedwards0323
I know there have been a lot of threads relating to A/C operation & fan-related issues. But a search of The Forum shows threads posted everywhere. So I chose to post a new thread under the Interior Section for my A/C fan issue. I apologize in advance to anyone that I upset.

Anyway, yesterday Roberta & I drove up to a nearby winery and enjoyed a nice lunch & bottle of wine. The A/C seemed to work fine, but I continue to have intermittent fan operation. On the way home, the fan stopped working at all. If I turned off the A/C, reset the fan to OFF position, waited a few minutes, then turned the fan back on, ventilation worked. But only as ventilation. With the A/C ON, the fan won't run continuously. I still feel cold air out the vents, but it's only natural ventilation since the fan won't run continuously. Needless to say it's still hot here in SC and this HVAC fan issue is starting to get on my nerves.

I've replaced the blower resistor & cabin filter plus cleaned out the blower of debris falling in from the blocked drain under the windshield cowling. Car still has the original factory battery. Feedback on Forum says it could be the battery (5 years old) due to quirkiness of XFire controls. Some say it's the HVAC Control Module in the dash. I remember one thread that said it could be worn motor brushes.

Not interested in changing parts, which is all a dealer repair center would do. Looking for some logical checks I can perform to pinpoint the A/C fan problem.

Thanks,
The fan will not work at times when there is trouble with the AC system, it is a safety feature. Likewise the AC will not work when there is trouble with the fan to prevent freeze up of the coil in the system. I am at a loss on the HVAC side of things.

Does the fan work when you use the heater?
If so the problem may lie in the AC system.
You changed the resistor last year, did you change it again?
 

Last edited by onehundred80; Sep 2, 2012 at 10:25 AM.
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