Onan Generator Fault Code 2- Low oil pressure
Starting about a year ago my 7.5 KW diesel generator on about every 3rd start attempt would start and run for about 5 seconds and then auto shutdown flashing a low oil pressure code. This only happene...
Forum Discussion
What oil viscosity does the manual recommend?
Try a thinner viscosity oil (first #). ie 5w30 vs 10w30. My Honda portable has the same problem, more so when it's cold out. Once it's running a few minutes it's good for the weekend.
I run a Honda 2000 because it uses 1 gal / 8+ hours vs the genset at 0.5 gal / hr. And I never hear it running.
Best,
- bob
Try a thinner viscosity oil (first #). ie 5w30 vs 10w30. My Honda portable has the same problem, more so when it's cold out. Once it's running a few minutes it's good for the weekend.
I run a Honda 2000 because it uses 1 gal / 8+ hours vs the genset at 0.5 gal / hr. And I never hear it running.
Best,
- bob
