Thought I'd pass along a generator issue that happened to us while traveling recently. Onan 5.5 HGJAB generator has been run and regularly exercised since it was new. On this trip, we ran it for about 2 hrs with the AC on, turned it off, then went to turn it back on. It would not stay running. Husband checked the genny and found a small gas leak around the fuel filter. No more generator till we could get it fixed!
When we got to where we could go to a place specializing in Onan, talked with the guy there and he said that the leaking fuel filter is a "known issue" with Onan, and this filter is actually a second filter and has been replaced with a metal fitting. We bought the fitting, husband installed it, and all is well with generator now. The scary part was the tech saying that Onan knew about this and that they knew that it is a fire danger, which was pretty obvious with the gas leak.
What I don't get is why Onan didn't issue a recall on this generator. Family member is original owner of this motorhome (bought new in Oct. 2002) and has never received anything from either Airstream or Onan about it. Anyway, if you have this model, check it out!