I agree with the posts above, that when you try to start the generator while it is under load, it is a bad thing.
With the auto transfer switch, there is a 30 - 45 second delay built in, where it must see 30 seconds of 120 volts to the 'gen coil' before transferring over to the generator.
If you are inside the RV, and the shore cord is plugged in, then shutting off the 30 amp main breaker will prevent the generator from being under load while starting or stopping it.
Someone also mentioned a 30 amp switch. They make 30 amp toggle switch that looks like a ordinary light switch, and would be wired into the generator feed to the 30 amp receptacle, but shut off manually to 'unplug' it while you start the generator. Yet that still means a trip outside while starting or stopping the generator, and installing a extra electrical box and switch. Turning the 30 amp breaker on and off will do the same thing.
Good luck,
Fred.
