Onan Gen Shuts Off

[jmcgilvary]

02 Fleetwood Bounder 36'
Onan 5KW

For some reason, of late, the Generator starts, carries a load (A/C's) but after 10-15 minutes, it shuts off.
No idea why.
Plenty of fuel, nothing has changed in the configuration in the last 3 years.
'Thoughts? Tips?
Thanks

[LVJ58]

SAR Tracker wrote:
Could still be fuel issue. Take a fuel suction from a can (bypassing the fuel tank, lines, and filter(s)), and see if it runs longer. If so, I'd bet on 15 year old fuel lines collapsing from age and ethanol fuels.

Good trouble shooting advice. Had the same problem with the genset in our 2000 coach, turned out to be cracks in fuel line from tank allowing air info the fuel line. Replaced fuel line and problem solved.

Good luck and let us know the fix.

[gbopp]

Don't forget to change your generator fuel filter. If the rubber lines are collapsing you may be pulling pieces of rubber into the filter.
If not, it's time to change the filter anyway. 🙂

[jmcgilvary]

Great, thanks, I can get the S/N no worries.
Today's project

[1995brave]

You need your generator serial number. You can either do a google search on the first part of the serial number or try the onan website, used to be www.onan.com, may have changed now.

[jmcgilvary]

OK, where would I find a schematic/idea on changing? I imagine something in my Bounder package might have it, if not WWW?

[schwartzworld]

I'm going to say it's the fuel pump. Unit heats up, the pump gets hot and stops pumping fuel. Fairly easy to replace.

[jmcgilvary]

OK, another great idea.
See, I LOVE this place!!

[SAR_Tracker]

Could still be fuel issue. Take a fuel suction from a can (bypassing the fuel tank, lines, and filter(s)), and see if it runs longer. If so, I'd bet on 15 year old fuel lines collapsing from age and ethanol fuels.

[jmcgilvary]

OK, seems like a reasonable idea!
Thanks, I will as soon as I get home.

[A1B00902]

check the oil level