I had forgotten I had posted this back in April when we last used the 5'er. On this trip, our first one since April, the same thing happened. I had not thought about the electric hot water heater and the refrig pulling amps. Both are on Electric. This particular campground is old and only has 30A at the pedestel. I haven't checked it yet but I will bet its getting hot. Because it tripped out earlier and I reset it and it tripped out again shortly So I let it sit off for 30 min or so and it seems to run ok. But, off goes a few electric items when I use the AC. Plus I will have it checked when I take it in.