[RipNC]

As Robert said - your 30A only provides 3,600 watts vs the 12,000 watts a 50A service provides. The 3,600 is shared by both legs in the RV vs the 12,000 which is split to 6,000 each leg.

If you were running 1 AC, water heater and your rice maker it was too much (if water heater was calling for power at the same time). Check your breakers and your GFI outlet(s). A tripped breaker can be hard to see in some panels so check them closely and turn to off before resetting. Also, the GFI outlets used (at least in my rig) should indicate red when tripped but I press the test button anyway and then reset. If you press test and don't see the little red light the power to or from the panel is likely the issue.