Forum Discussion

Lancester's avatar
Lancester
Explorer
Sep 14, 2015

Onan emerald 4000 genset won't stay running.....

Hi all. Hope you're having a good season. Just tried to fire up the genset. It starts, but quits when I let off the starter button. Any insight would be appreciated....

5 Replies

  • Lancester wrote:
    I will get those #'s as soon as the rain stops :)


    Been raining a long time now
  • With my previous genset (Emerald 2) I recall reading something about the circuit board needing to see generated voltage before it would continue running after releasing the starter.
    The link posted by darsben is a great resource, and I highly recommend their replacement boards if it comes to that. I threw parts at my Onan (circuit board, fuel pump, and carb) to get it running well and did not regret it for a second.
    I don't know what type of voltage regulator is on an Emerald (1?) so you may want to post the full model and letter spec. There are some Onan experts here on RV.Net. Good luck.