[Dmatz]

If you are going to work under the coach on the air system make sure it is on stands that will not sink into the ground. I know it's flat now but as it comes up think safety first. Pluging into a remote compressor is going to be the best way to track down the air leaks and begin to trouble shoot the air components.

Are you able to check voltage at the armature on the generator while it is running? If the fuse is set and gen is running voltage should be at the yen. This may help to see if it is the yen or the coach side.