A couple of questions. Just to clarify, you are saying the pedestal breaker is tripping, right? Or are you referring to the Roo's main breaker or the air conditioner branch circuit breaker? Also, besides the AC and HWH, were you also running the fridge on electric along with the converter (charging the batteries)?
If its the park pedestal, I suspect low voltage. You can (and should) check for this before plugging in anyway. Do you have a voltmeter handy?
You could try running the HWH and fridge on propane and see how the AC works with that.
DW, 3 Kids and our Goldens
2012 Shamrock 233S
2008 Toyota Sequoia 5.7L 4WD