I leave my front jacks down and the camper with the front higher than the back so the water runs off easily. Also, with the rear jacks up they are protected.
I have 450W and an inverter with (4) 6V batteries in series parallel. I'm surprised at how quick the batteries draw down. You can read more about my stuff here http://www.jeromesrving.com/5thwheel/2015/2/9/solar-on-the-rv . Zamp Solar has a CPAP s...
I have a 6.5' bed with a slider now and am looking to moving to an 8' bed. My Pullrite is fairly sloppy when I stop and go. Clunk Clunk Clunk. I'm actually looking forward to swapping that out for a standard hitch and eliminating the extra clunkin...
I had something similar to this when my batteries were below the required voltage to run the heater. It would try to start the heater, run the fans for a bit then shut off. New batteries fixed the problem.
I keep mine up, except for the front two of course. I dont want the ram's exposed to the environment and I want the water to run off the back because the front is higher than the back.