Are you talking about a champion inverter generator
best guess was not a fuel problem but a generator heat saturation problem
Simply put you ran too much load and over heated the alternator and the inverter electronics
The built in thermal safety would not let you run the load you wanted
Next time only run the a/C and your converter
Make sure the fridge and wh are on l.p. Before you over load the generator Not afterwards
Also take the generator off of econ mode , let it burn a little more fuel you need the fan on the engine moving as much air as possible
I have had the same problem, once you let it get hot and over load, nothing short of cool down will let you get the a/C going again
Turn the generator on first thing in the morning, before the RV gets hot, get the batteries charged and the water hot, before you need the a/C
Then put everything on LP,
And turn on the A/C before it gets too hot inside
its a balancing act, but its doable
