Watch out for this one.
I was having an intermittent problem with the electrical circuit that feeds the front of my 06 ZT-32SB. Basically the GFCI located under the upper kitchen cabinet would trip, taking out all of the outlets in the front bedroom, the shared entertainment unit wall and the main slideout outlets. I initially thought it was the GFCI receptacle, so I replaced that, but the problem persisted. After disassembling outlets along the way I finally traced it to an issue with the the neutral wire. I inspected various outlets in the circuit, removing the neutrals and testing. It took a while, but I found that the problem was between the main structure and the main slide. Outside, just ahead of the main slide, I located the "weathertight" electrical box mounted on the frame where the solid core 14/2 is mated to the flexible stranded wire. Well, apparently it wasn't quite weathertight, as probably 1/2 cup of water ran out when I took the cover off. I'm gonna let it dry a week or so, then seal it up properly. Hopefully the water didn't wick into the wiring too far.