5500 Onan quits after 1-2 hrs use, then starts back up

[roller183]

Was out dry camping this weekend with the ATV club and had a new issue with the generator pop up...

gen was running smooth and steady for at least 1 1/2 hours then quits like I turned it off...No fuel stumble, just like it was turned off..Would not restart right away..Wait for 2-3 minutes, start back up and will run for another 1-2 hours and stop...

The best code I could pull from it was a "34" ..Can't find a fault code list to save my life. Looked at Cummins page, nothing. Did searches no luck..

I'm hoping it is something simple like the last time where a rodent had chewed the wires....

Anyone have similar issues?

TIA. Checked the search engine here but probably used the wrong wording.

[Dirtclods]

Check your oil level.

[joebedford]

A very quick Onan search came up with 34: high inverter temp

Debug from the op manual

Make sure nothing is blocking cooling air inlet or outlet
Reduce the number of appliances (could be altitude related)

[cooper841]

Sounds like fuel pump.not enough oil