Thor Forums

[Rysiek]

I have 2015 Axis 24.1. Never had any issues with the Onan 4000 generator. Suddenly, about 2 weeks ago my generator started acting up. Right now I can't start the generator at all. The generator will start only with the engine running. As soon as I shut the engine off, the generator stalls out in about 5-10 min. My gas tank is more than 1/3rd full, all house batteries connections are good. I just replaced Onan's air filter and also will replace the spark plug and fuel filter. I have primed the gen several times with no success. Last time I checked the house batteries they were showing 12+ V.
I will double check the batteries conections again.
What other steps I need to take in order to correct this problem? Are the 5 year old deep cycle 12V batteries dying?