Not really the same scenario but recently we got back from a trip and put the unit in storage. Went back to get a couple things that we forgot about and my slides would not work. Everything else worked perfectly. Hooked the truck up to the trailer and the slides worked again. Figuring maybe the batteries were kinda dead I took them and charged them up. Still nothing. Tested the breakers and they were good.
Took the cover off the distribution box where the 7 wire connector goes and found a sheared bolt where all the grounds connected to the frame. Moved them to another bolt and walla everything works.
Since you say you have an intermittent problem I would guess loose wires or bad ground as most of those circuit breakers fail open and don't reset. Could be wrong but test them first before replacing them.
That's the box where my ground was broken.
Travis