I am working on my 1999 Airstream Cutter with a Cat engine just so you know. I had another thread about gauges don't work and thought I had them fixed.
Ok so my gauges were not working at all so as standard procedure I cleaned all connections to the computer box that run them and they worked
After a short celebration and a beer at home with the dog, I proceeded to my next problem. The AC had quit working at the same time the gauges stopped working. I started the unit , gauges worked great turned on the AC and all warning lights came on and gauges quit working:(
I turned the AC off and on again and the gauges started to work then quit.
When I start the engine without the air on the gauges work fine. I can't figure how the gauges are connected to the ac. I guess the computer has taken a dump? The computer was replace 8 months ago. I am thinking about taking it to a dealer but I would bet the dealer would have a lot of time tracking it down also. Second option would be to buy the $350.00 computer again. Third option keep working on it and trouble shoot the AC unit. It has enough gas in it and the pipe runs cold however it always puts out heat. I think the flap door is not opening possibly. I have 20 hours in this problem already and could use any ideas anyone may have. Also my Moral is running low to say the least. This forum is a great help and I thank you for your responses in advance.