Are any breakers tripping? I know at one time the A/C breaker next to another breaker (can't remember which) one created enough heat to trip. If the Gen is just cutting out???? no breaker tripped, that is strange.
Again, I know there are fuel pump issues with Onan but that has been on gas, not LP.
PLEASE do not send questions via Private Message, my inbox fills up too quickly. Post questions in the forum as a new thread so that other users can benefit from the answers. Use Private Messages for sensitive information only (VIN, Contact info or things you do not want the public to see).