I always started my refrigerator about 1-3 days before a trip. Then check it the next morning before work, and see if it is getting cold. I still have a chance to re-light it - should it have gotten some air in the propane line, and the flame went out for whatever reason, the check light came on.
By that afternoon, I was ready to put food in the refrigerator and then be ready to go camping the next day.
Do you know that the refrigerator has to be level before lighting it? The boiler needs a certain amount of refrigerant in it to work properly, and if not it can boil dry, then any remaining ammonia will turn to crystals, so it will not work for a while.
If you did run it off-level and it stopped working on gas or electric, then shut it off, take the RV for a somewhat wild drive (or just drive it 50 miles on the freeways if that is where you are going anyway). After about 10 miles on a curving road, the ammonia and water mixture will have a change to return to the boiler. Then you can level it and it should start working again.
While driving, the ammonia and water mixture will tend to fall out of the evaporator and return to the boiler on it's own.
You do not need to be perfectly level, but most people have a square bubble in their refrigerator. If that is near the center, or within 1 ring of center, it is close enough.
I carry ramps in my RV to lift the low tire. I made them out of 2X10's for my larger class A motorhome, your C might work well with 2X8 boards, but the 2X10 is harder to drive off the side than the skinny boards.
For the ramps, the top board is 9.5" long and cut at a 45 to the ramp up side. The next board down is 4.5" longer, so board #2 is 14", #3 is 18.5" and #4 would be 23" if you need ramps that tall. I also carry one board about 10" long. Many times I find that one side needs to come up to say level #2 and the other side just one level of board.
Fred.
Money can't buy happiness but somehow it's more comfortable to cry in a
Porsche or Country Coach!
If there's a WILL, I want to be in it!
I havn't been everywhere, but it's on my list.
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