Originally Posted by
prelude
What comes to mind (I am currently way down bush in sweden and my pressure drops to 2 bar every night so every morning the system has to work hard to get back up again):
If the system can pressurize and depressurize that means the valves work correctly. If you look up a diagram on how the EAS air flow works you will find that there is ingress an egress of air through a single path (through the dryer). If the fronts can lower, the pathway for letting air out works so it should work for the rear as well. The rear valves work, else they can not inflate. The exhaust valve works, else the fronts can not deflate. So we have ourselves a little mystery here. It COULD be the driver pack, though all the functions individually work as I already explained. Perhaps the combination of exhaust port and rear valves can't operate together, I don't know. I have never taken the time to figure out the driver pack but it is on my ever growing todo list since it seems to be a vulnerable part and should be quite easy to build a replacement for with some FET's or whatever.
So, yes, the driver pack is my first suspect since I can not figure out a way how you would get this error mechanically. This is of course assuming that the rears go up to wade height actually and not just blow up to the max due to the valves being open all the time? (this would deflate them simultaneously with the fronts though so I guess not?).
Well, back to finding my own gremlins...
Cheers,
-P
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