LP problems, no furnace no water heater

Ok, wow. Lots of replies thank you all. Here I go with the responses. With the battery charged and the camper plugged into the house (20amp). All the lights work, the microwave comes on, the fan switch at the wall thermostat will operate the ceiling fan, the little green light illuminates down by my feet (I think that is a CO sensor). And the press to test battery will light up all four lights and the tanks show empty. That's what does work. What does not work: the water heater switch has a red light next to it that says reset, that does not come on or illuminate. The fridge has some lights on the top, I'll show a picture, those do not illuminate under any senecio of pushing in the on/off or electric/gas buttons and when I flip my t stat to furnace nothing happens. Also when I open fridge door no light comes on. I did locate the switch behind the burner at the water heater and I flipped to ON, it's was sold to me in the off position last Season. Switch was rather hard to move. No I didn't stand outside when I tried to cycle the water heater. I will today. What's the process, turn on the switch inside and run outside? I've also laid on the floor open the fuse panel, cycled all the breakers into the on position and checked all the fuses that are right there. Here is what I'm looking at

Breakers in the on position


Gas burners are full on.


T stat control. Fan works and Hi low switch works when fan is ON but fan won't come on when turned to auto. Furnace/off/cool switch does nothing.


Water heater switch does nothing either. Is that light there supposed to come on?

And this thing is just sitting there. Can't get a reaction out of it
Filled with water prior starting to turn on. Checked by cracking the pressure relief
Vent and water came out.