Generator shutting off

[Greyhawk01]

My generator has recently started acting up. It runs fine when we are parked but as soon as we start driving it shuts down within 5 minutes. I noticed that the new motorhomes are coming with vented generator doors I was wondering if they there having problems with these things overheating?

[WinnieView]

Is the MH fuel tank more than 1/4 full?

[Les7h]

Possibly as you turn a corner the oil shifts away from the pick-up and loses oil pressure - if the oil level is a little low or an overheating issue but when you are moving i would think that the air moving would cool the generator more than when it is sitting still
Les

[hoppers4]

Originally Posted by Les7h

Possibly as you turn a corner the oil shifts away from the pick-up and loses oil pressure...
Les

X2

[che57vy]

Is it flashing a code ?

[Greyhawk01]

The oil level is good. When I saw a new red hawk the other day with a vented outter door it got me thinking it might be getting hot from the Heat off the V10 and Jayco decided give them more air flow. Im not sure about the code. I didnt realize the generator gives trouble codes i will have to break out the owners manual and se how to read them. When i was poking around today i did notice that the rubber fuel line bends tight around the generator frame. I think I will extend the line so it dosent kink. I might even insulate it because I have a feeling that it might be getting vapor lock.

[Greyhawk01]

I posted a pick of the fuel line eventually the fram will rub a hole in it. Something for everyone to check.

[Greyhawk01]

In the bottom pic i moved the line out a bit so you can see the wear starting on the fuel line.

[che57vy]

If it shutting down you can count the flashes on the red indicator light on the start switch outside if it is setting a code. 3 flashes means there is another code that you have to get. While flashing the 3 times, press the stop button quickly and you will see another 2 digit code. It will flash the code over and over for about 5 mins.I think this was how I found my problem once, mine was starving for fuel due to a bad fuel pump.

[Greyhawk01]

Ok thanks. Im going to try and do something with the fuel line. And if that dont work please slow down when you see me on the shoulder of the highway counting blinks and cursing Jayco off.

[che57vy]

One of my jobs used to be maintaining big 16 cylinder cummins gen sets but the Onan can be a pain figuring out sometimes, why they never put a slide out tray on these coaches is beyond me sure would of made things easier. You will figure it out, that module that controls the gen set can cause problems. As someone said keep oil full and gas above 1/4 tank. I saw where one person had their Onan shutting down just below a 1/2 tank I think that was a goof on the pickup line when placedIn case you haven't already done this. Go to the onan web site an download a complete service/tech manual. It will answer all the questions you have, including part #'s.
Go to: http://www.cumminsonan.com/rv/ then click on Maintance Parts then click on Tech Documents then scroll through and find your particular generator.

[memphis02]

This probably won't be helpful, but I thought I would post a link to it, j.i.c.

I had an intermittent issue with mine, when in auto-gen mode where it would shut itself off. I ended up discovering a bad wire at the battery bank where a fuse-holder had been eaten up by battery acid causing it to lose connection to the ignition source, making the gen think I had cycled the ignition and putting it into 'protect' mode.

https://www.jaycoowners.com/forums/f...f-46814-2.html