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Discussion Starter · #1 ·
After I bought my Saab (1994 NG900 S) the heater/fan control wasn't working properly, and when I had the car serviced they took the panel off and fixed up the heater - I also had the AC regassed (they said the compresser was fine)

Now that the weather is warming up I've turned on the aircon... and found it behaves exactly the same as the heater; with the dial all the way in the blue air comes straight in from the outside, and if I turn it up at all it blows hot. I can notice a slight change in engine tone and idle RPMs when I hit the switch, but whatever it is doing seems to have no effect on the air blowing out.

Could this be something simple like bad wiring on the back of the control panel, or are there other places I should be looking at to determine what is going on?
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