Glad you found us, and the cause of your problem! Look forward to hearing more of your RV adventures.
BTW - you might want to consider putting a signature block (like mine below) that gives us some idea of what you are driving, year model etc. It makes getting answers easier. Just go to the 'User CP' tab on top of the page & find the signature portion.
Now, I can't imagine a refrigerator being on a GFCI circuit. This is just a melting disasater waiting to happen. You might want to see if there is some way of dedicating a circuit - non GFCI - just for the fridge.
Mark