Why not use AFCI's in RVs?
First let me say I am not trolling or being a SA, I am not too familiar with AFCI's as they didn't hit the NEC until 1999 and I retired in 1995. If as our SE used to say, "if one safe device is good,...
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A good reason to not have a fridge or freezer on a GFCI is that there are usually other outlets on the same GFCI and you might cause a trip from one of those, leading to food spoilage. It's easy to say that the fridge/freezer should have its own GFCI, but then in a garage one wouldn't be able to freely move it to another outlet. Or raise the price of the house by 50 to 100 bucks and have a dedicated GFCI for every garage outlet. RV fridges are somewhat of a special case because they are prone to have their heating element short to ground. The fridge in my RV is on a GFCI circuit from the factory.
