NEED HELP!!!
We own a 2005 Aerolite 26RG TT and love to camp!
This year I pulled it out of the barn and we went on a very short trip to get away and "shake out" the camper. Well I am glad we did not go too far because upon plugging into the 30 Amp post I tripped the post breaker immediately! I looked at the American Controls CS6000XL for signs of any issues and did not find any. So we went with battery power and I ran a regular 110VAC cord for coffee. Have to have coffee!!

Next day, I examined it further and noticed that the 30Amp/15Amp breaker was loose from its mount and so I decided to replace it with a new Murray one from the local RV Store. Did not correct anything. I looked at the 30amp trailer cord to the post for signs of wear and did not have any. There is a junction box under the sink where the 30Amp cord terminates so I checked for continuity and it was good. Then I cross checked the junction box power wire at the junction box to the convertor and I had continuity on both the ground and white wire (neutral?). So that is BAD. I tried to trace the wire and it looked ok from the parts I could see it appeared fine. I accidentally while testing used an extension cord without a ground pin with 110VAC and that would allow power in the unit for 110VAC lights, coffee, plugs, etc. BEFORE even 110 was tripping the post breaker. So it was getting afternoon and we decided to enjoy the day and not worry about it. OK, so this morning I went back into the panel and tested again for continuity and found that once I removed one of the white wires from the bussbar (see pictures) that was where the fault is. GREAT!! except I do not know what I have removed power from? The breaker is 15Amp "General purpose" and has several black wires to it? Anyone had issue with this type of failure? NOTE: When I got the unit home I plugged into the garage with the NO Ground plug to keep power while we unloaded. Later I went to open the door and got a mild SHOCK, I know, no ground equals danger, but I was in "test" mode. Unplugged it and now looking for what device might be the problem but had to go to work. All receptacles work, 12V cigarette plug convertor works, radio, fridge, interior lights, fans, all work. Water Heater is marked as a seperate circuit breaker. Any suggestions?