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Climate Control Resets When Car is Started


Erebus
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Dear All,

Re 2006 Aurion Presara

It has been a while since my last post, basically because I have had very few significant issues! The car has been awesome!

I currently have a very strange issue with the settings on the AC Controller being lost. It happens after the car has been sitting unused for a while (usually overnight). When I start the car all of the AC control screens are blank (the front screen demister light is flashing) and after one or two minutes the unit starts up. I then have to push Auto and the unit gets going with 25 degrees C on both sides (presumably this is a default setting?). Otherwise the air con works great. Short periods between drives the car is fine. Long periods is when I have the issue.

So far I have checked the ECU-B No 1 fuse (no fault found). I have even actually replaced the control unit itself (as I had a spare when I replaced the sat nav assembly. Still no change.

Any ideas what it could be please? Many thanks in advance, Rob

Edited by Erebus
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