Onan lp genny switch conundrum.

I had the same thing happen to my onan down there, I had parked in the bull pen so the wind was blowing right at my generator door (E wind), the next morning I went to fire it up and it wouldn't stay running (ran fine day before). I gave up fiddling with it and waited for the solar to kick in to top the batteries off.

When I got home that evening and pressed the button the dang thing fired right up, never have figured out what caused the issue other than possible moisture?

Edit: If your on LOA: https://community.lanceowners.org/topic/onan-generator-no-start-mystery

K Charles wrote:
What kind of generator?

Was an onan that lance uses in 99% of their units after 1999

The salt air has taken its toll on it over the years so anytime I can keep it going is a hood day.

I have been using a Carry on Onan 4500i inverter for most of my camping this year. Its awesome..
Quiet as a honda3000 but has wheels and remote start standard.

Something turns off the L.P. and the start switch overrides that. Oil level, oil pressure, amount of charge or something. That is what is bad. Onan makes many L.P. generators

It was the switch
The terminal was loose so it arked and fried the switch.

Got a new generic marine momentary on /off/ momentary on...
Works fine.

Good ol Advanced auto saves the day

It's starving. If it's firing up at all, it's got spark. If it has power to turn over, it has the needed electrical. If it won't keep running, it is a fuel issue.

What kind of generator?

Everything else works fine on the propane side too.
Fridge.stove. heat.

It's not a propane issue..
It's either the switch or other electrical..

I can keep it running if I hold the switch in the start position.

Check and make sure your propane tank hasn't gone into safety mode. It will allow a bit of propane out, just enough to start the Genny, but not enough keep it running. Been there, done that lol