Just finished getting the ride height working and am mystified as to how I fixed it. I started the trouble shooting by pulling the 7 1/2 amp fuse and verifying it was good. Put it back in and went to start looking for the next step. When I started the engine it starting working for the first time. Could it have just been a bad connection on the fuse? or does the HWH computer reboot by pulling the fuse and that fixed it?
Yes it reboots by pulling that fuse and also turning off the 12 Volt master switch at the door.
I didn't turn off any power in my checking this out. Must have just been a coincidence.
There are two sources of power to the HWH box. The one by the door may affect the leveling system (I never checked that), but the travel mode is powered by the chassis batteries and is activated when the key is on and the "air" switch in the leveling control panel is off, as far as I know.
Don