I have a Four Winds also and do 90% of the people I RV with to sporting events.
And respectively I have to disagree with you on the GFI only attached to your bathroom.
One GFI for the whole coach and it is connected to everything. I have the air on and start the micro and it blows the breaker and I have no power to the a/c electric side of the coach.
Your reference to the one side of the MH? Depending on which model you have almost all the a/c "appliance" stuff that does not work with a tripped gfi IS on one side! :B T
he fridge is usually on the opposite side but you won't know if that is on until it defrosts but then again it might automatically go to propane if you have it on auto and the propane turned on, so you won't know about the tripped gfi on that.