I know this is a little late, and hopefully you have found your problem, but I just joined and came across your thread while trying to find help with canvas/vinyl repair.
We had the same issue the first time we took ours out too. Found out that in the same area as the panel to get to the fuses, not in the fuse panel, but on the face of that wall under the table, there is an outlet, the outlet has a ground fault protector on it that had popped and needed to be reset. We still had interior lights, but nothing else. Once we pressed the reset button it worked fine. The ground fault popped because of a surge/spark from a bad extension cord. Popped again one time when we forgot to turn off the 120v switch for the ref. and then plugged the main line into power...the surge set it off. Which brings me to one of your other questions. It sounds odd, but in addition to the refrigerator needing a long time to cool down, it also needs to be fairly level. If it's way out of wack it won't cool...got that from the manual after I ordered it from Forest river since I didn't get one with the camper.
Now, anyone ever have to replace the canvas/vinyl ends??