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Old 12-18-2008, 12:36 AM
Join Date: Sep 2008
Location: Orlando Florida
Posts: 3
2003 CLK CAB (208) AC quit & AUX Fans on HIGH?

75 degrees in Florida, my wife is driving 2003 CLK CAB (208) with the AC on.
She said the AC stopped working and all of a sudden e aux fans came on in HIGH mode.
There is no response or display from the AC Heater controls it is off.

I jumped in, sure enough the fans start running on high and the temp needle to me seems to be running a touch high... I check every fuse no issues, check the coolant level fine, I have searched to try and find any info I can.....I did come across a post referencing low AC charge causing Aux fans to go into high mode ( for a 210)....

I let the car cool off for several hours and when I start AC display and the fans start up again.

Any idea, they are greatly appreciated.

Thank you.

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Old 12-18-2008, 09:01 AM
Join Date: Mar 1999
Location: Tucker, Ga USA
Posts: 12,153
Fuses # 20 & # 26 supply power the the a/c controller.

IF they are good & have power then the controller itself is the most likely issue!

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