I have a Gremlin that shuts off my 12 Volt system to both the slide and the water pump whenever I use either for a little time. It comes back on after about 2 minutes each time. Somehow it gets both systems but not the ceiling lights. When I run out or in the slide I get about 3/4th the way in and then it is dead for about 2 minutes. Samething happens in the middle of a shower with the pump. The little light on the pump switch is out when that happens. Both systems are affected no matter which one I am using. Is there a relay that is getting hot? If so where? The fuse looks good. All ideas welcome And if anyone has a wiring schematic please let me know.
Sounds like a circuit breaker is tripping then resetting after it cools down. My cruiser has two 12v circuit breakers mounted on the front frame inside the "A" frame. I'm not sure what they control but that would be a place to start if you have them. I would disconnect them to see if they control the circuits that are giving problems.
There are self resetting breakers that activate if being overloaded, or they could be old or corroded. they are bolted on the trailer frame. one is usually very close to the battery before the wires enter the trailer frame and others are under slideouts for each slide
Jason & Wendy
2014 Ford F-350 Lariat 6.7L PSD
2015 Keystone Montana 3711FL
B&W Patriot 16K Fifth Wheel Hitch
Two resetting circuit breakers housed on the wall behind the battery. Difficult to see until you remove the battery and plastic box that houses the battery. One of the wires on one circuit breaker was loose and arcing. Tightened it up and everything works as it should. I would never have found those breakers without help.