Okay, fully understand doing it when not a killer!
And there may be a less intensive way to go about finding a solution as there are different ways to go. yopu have a far different sytem than many, an dthat may be the part that is failing, so I will suggest a second method and let you choose if when and which to try first! Lots of things look simple on paper!
Between the 2010 and 2012 model of that RV, they changed to a solid state model which may be the problem point???
Electrical drawings don't show things that are nice to locate when I don't know the RV as well!! So some guessing involved?
Smallish box stuck on the wall and hiding?
They show us a box that has three lugs that may be connections from three switches for the pump. In this layout it looks like they are switching ground and that is good for solid state items. Bit of guess until we get some things ID'd better than my guessing!
IF and when you can get to this and check the ID stamped on the wires, we can then verify if that idea is correct. The ID should be the last 2-4 letters at the last of a long string of info. Most we don't need but if you can find what wire is on which lug, we can get a better feel for it being correct!
I do see I missed and said the last lug on left but meant to be last lug on right goes to pump!
This is what the ID chart shows if I am guessing right???
I'm hoping you might find that last lug on RIGHT is a loose connection?? If not getting ground there and none of the three on LEFT are getting ground, we may be in deep water as we need to find why no ground gets here to pass on?
Hopes and prayers and finger crossed?
