No start power to Onan 5500 generator

[Devildog86]

Ok, going through last minute checks and went to crank up generator to allow to run for a bit. Prior to departure to Western NC this Saturday. Nothing, no power to start! My Rig is a 04 Kodiak Gulfstream Endura and the generator has ran fine just a couple of months ago for nearly a week while we were camping @ races. I've been through all 3 fuse boxes & 1 main breaker box. Doubled checked all batteries/cables/connection's.  I'm looking for suggestions! Much Appreciated..

[joebedford]

My Onan 5500 is wired directly to the battery. No switches, fuses or breakers in the way.

[MNtundraRet]

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@Devildog86 wrote:

Ok, going through last minute checks and went to crank up generator to allow to run for a bit. Prior to departure to Western NC this Saturday. Nothing, no power to start! My Rig is a 04 Kodiak Gulfstream Endura and the generator has ran fine just a couple of months ago for nearly a week while we were camping @ races. I've been through all 3 fuse boxes & 1 main breaker box. Doubled checked all batteries/cables/connection's.  I'm looking for suggestions! Much Appreciated..

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I would check for a loose ground wire. It's possible a mouse chewed through a wire somewhere in the wall.

[way2roll]

You said it ran fine a couple of months ago, do you exercise it regularly? it's recommended- especially with ethanol gas, to run it monthly under load to keep the fuel lines and carb from varnishing. That said, no power to start sounds like a battery issue, not a fuel supply issue. Are your batts fully charged? Battery disconnect off?  Can you jump it to test it? Is it getting spark? 

[Devildog86]

Hey there Waytoroll,

Yes batteries are at full charge and I did jump start it directly.  Fired right up! Generator will not remain running if I remove jumper cable., telling me it has something to do with the Rigs electrical makeup? Nothing wrong with Generator! I appreciate all your posts! I've found a Company called Atlantic Emergency Services, who has offered to step up & assist with diagnosis of this issue. Because we have got to get on the road to Lansing, NC! Again Much Appreciated! Semper Fi,  Mac & Elizabeth 

[Devildog86]

Thanks for the reply! Yes, I jumped generator directly with jumper cables and separate battery,  cranked right up! Will not continue to run if I remove jumper cables! Something is stopping the power from getting back to the generator. 

[way2roll]

Then I think you have your answer. Sounds like your house batts are dead. Onan generators require a good battery to keep the fuel shut off solenoid open, and the control board powered up. 

[Devildog86]

Hey there Waytoroll, much appreciated! I have checked house batteries,  control panel into rig says fully charged. I even retracted both slides. All lights, jacks,refrigerator are all running of house batteries. Just no power to start generator, once again. Thank you for your posts.