LP Generator problem

[Bosstweed]

I have a new Onan 5500 LP generator installed in my 2017 DRV. The generator starts and runs great, switches over from park power to generator power, and supplies power for 10 to 20 minutes, then one of the two circuit breakers on the generator trip, causing me to lose power. I then have to turn the generator off, flip the circuit breaker, and restart the generator. Same thing happens again. Anybody have any ideas or expierience with something like this? I am not to mechanically inclined to know what's happening or why. :confused