[Steve Polhill]

Newer Onan's had an issue with Broken brushes. Just helped a friend with that issue. They often break a brush and keep running for a while until the broken brush is no longer long enough to contact commutator, then throw a code and will start then shut off due to the lack of voltage. If you test the resistance of the wires from the brushes and it's an open circuit(infinite resistance) you have broken brushes. I'll have to look up the pin out for the connector. It's a bit of work to fix, but not complicated.