Dometic refrigerator setting while traveling

I believe it is 2332 or2333.

A good tip besides using propane is to make sure the food you add is as cold as possible when you load up for the trip. Some RV'ers will put a plastic container with ice in the fridge portion to help with the cooling.

We also try to light ours the day before the trip to get it cold before leaving.

What is the model number?

There is no auto setting, only four -
ac, off gas and off.

Check your manual for your model. We leave the propane on. Set refer to auto. In that mode it will switch to 120 volt AC when you plug in shore power and switch to propane when you disconnect.

while traveling put it on propane, first turn on propane tank slow. then light stove or furnace first, to get air out of the system let on for a couple minutes, turn stove /furnace off ,turn frig to propane and light. when its on propane from a dead start it will take about 10hours to get the freezer cold and the frig box cool. NOTE we light ours the day before a trip load that evening don,t turn it of till we get home ,uses very little propane.