Date: Tue, 6 Apr 2004 16:52:43 +1000
From: "Bill Rule" <>
Subject: Re: Saab 900 Turbo Heater/AC fan problem

sounds VERY similar to my experience (900S Build-year 96/97) I no longer trust a few of the electronic functions, such as fuel consumption calculations. I get the general feeling that the readouts are nothing like as responsive (speed) as they were when I bought the beast about 2 years ago. I believe that this correlation of noise frequency (ie fan speed) with motor revs makes the explanation of "binding flaps leading to flap motor skipping gears" to be a little suspect. "Rob" <> wrote in message > Hi all, > > I have a wierd problem with my saab... the Automatic Climate Control > (ACC) System fan will work on High most of the time when I start the > car. If I lower the fan speed it will quickly stop working and the > fan will start making a chirping noise. The chirping noise will > quicken and slow as I adjust the speed. The weird part is, when I > shut the car off and turn on the ignition the fan works correctly on > all settings. I took the glove box off and can see the fan through > the fresh/recycle air opening. The fan when chirping is still > spinning but very slowly. My electrical engeniring friend said that > the fan speed might be controled by "pulses" and it's not getting the > right current or something. > > Does anyone know how the fan is controlled or what is the problem > with this? Does anyone know if there is a wiring diagram somewhere on > the internet or a good resource to find info? > > These may not be related but the fresh/recycle air flap does not > seem to work and the automatic seat adjustments work only > intermitently. > > Thanks in advance for any help, > > Rob

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