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Date: Sat, 16 Oct 2004 12:26:44 -0400
From: cs <cbsnospam.net>
Subject: Re: 9000CSE Climate Control


I've experienced a like problem w/my '88 9Kt - the CSE has a newer system, yet in principal they're likely have the same design function, i.e., the 9k's ACC is designed so that in auto, the ac compressor is always on, and the difference between heat and cold air delivered is based upon the opening/closing of a door to allow in heat. When the servo motor goes, the flap of course no longer moves automatically. There is a diagnostic procedure, but on the CSE, I've not a clue as to what it is. From memory, the code for the above situation in the early 9k's was "5C" which the factory service manual identified - again by memory - as 'reversed polarity.' The servo in question resides just to the right of the ashtray/radio cluster. You can see it from there, but side with the control rod faces the right, ergo you will be unable to see how it is fastened. On Thu, 14 Oct 2004 10:18:13 GMT, "Al" <alistairdorenospamo.com> wrote: >I set off in the morning with ACC set to 22 degrees and it warms up nicely. >However, when it gets up to temperature,(I assume) it stops producing warm >air, in fact it just gets steadily colder. > >I have tried switching between auto and econ, to no avail. > >Raising the temperature control has no effect, even if I set to HI. > >Turning off the engine and restarting has no effect, but left overnight and >we go back to the scenario at the top of the post... > >Can somebody help? At a guess the "flap" or valve which diverts the air >over the heater matrix, if that's how it works, is not functioning >correctly. > >Cheers > >Al > >9000cse :-) >900s :-¶ >No C900 :-( > >

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