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ron_dittmer's avatar
ron_dittmer
Explorer II
May 17, 2019

Seeking Help - Generator Won't Stay Running

My brother is texting me for advice. They are on a trip. His 2800 Onan starts and stays running until he lets go of the start switch. The same thing happens with both start switches, the on-gen and inside house remote panel. Main fuel tank is 3/4 full, gas cap off to assure no built up negative pressure.

Anyone here have the same trouble and the solution?
Class C
  • phil-t's avatar
    phil-t
    Explorer
    May 18, 2019
    Same as what has been written. I had that same problem - turned out to be the brushes and commutator on the genny end. Not a cheap fix by a Cummins repair center.
    Several other causes for that same scenario - fuel problem (of some sort), low oil (or bad oil sensor), control board.
    The genny is belt driven and that can be an issue on some models.
    Flightsystems.com has some good troubleshooting documents and are an excellent source for parts.

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