There's one problem you may have if the fridge has been off and it's hot in the RV.
When you turn it on, the control board will be looking for a certain amount of cooling during a programmed interval, about 4 hours I think. If it's hot in the fridge it may not cool down that quickly and the control board will shut it down and throw a "no co" code on the display.
There are two ways to handle this problem. Some folks put ice packs or frozen jugs of water inside before turning it on to reduce the inside temp. The other way, which I prefer, is to unplug the thermistor and turn the temp to "9". The cooling unit will continue to cool to it's maximum capability. I do this the day before I need to use the fridge. When I check it the next morning the inside temp will be in the 20's ! At that point you can reconnect the thermistor and set the temp the whatever you want, usually about "5" or so.
__________________
Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD