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Old 02-15-2019, 03:07 PM   #1
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Post Generator suddenly quit

After running a few minutes, my Onan 2800 genset suddenly quit as if turned off. I have run it at home monthly as recommended and had previously been serviced. When trying to restart it, absolutely nothing happens, not even a click. Any suggestions how to proceed? Where to check, etc...
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Old 02-15-2019, 03:58 PM   #2
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Quote:
Originally Posted by gksmith View Post
After running a few minutes, my Onan 2800 genset suddenly quit as if turned off. I have run it at home monthly as recommended and had previously been serviced. When trying to restart it, absolutely nothing happens, not even a click. Any suggestions how to proceed? Where to check, etc...
Might want to use the start button on the generator itself next.
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Old 02-15-2019, 04:31 PM   #3
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Wasn't sure at first what you were talking about from the title.

There is a breaker you can try to reset on the generator inside the case opening. See p.12 on the manual for '2009 models.

file:///C:/Users/Roy/Documents/Motorhome/Onan_KVFA_Generator_Operator%20Man%202009.pdf

More trouble shooting on p.23

Good luck.
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Old 02-15-2019, 05:10 PM   #4
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Thanks for the suggestions. It turns out that I panicked, but it seems that I still have problems that I thought had been solved. The genset has previously had the shut down problem that I have discussed in previous posts, requiring multiple restarts before running without dying. I took it to Cummins and they said the problem was the automatic choke needing adjustment . Fuel filter was replaced, choke adjusted, and I paid them $600. Everything seemed OK until today, the first time on the road. The no start problem was from dead coach batteries that I thought were charged up, which brings up another problem, but I hope will be solved with a long drive.

BUT while writing this post and after running the genset for over 15 minutes, the genset started surging for a minute or so and died. I have never had it act this way , but it does restart without surging. I will see how long it lasts. It certainly seems to be a fuel problem. Any suggestions other than spending another $600+? Thanks.
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Old 02-15-2019, 05:35 PM   #5
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Sounds like you have more than one problem going on.

When the generator is running it should be charging the coach batteries so for you to have dead coach batteries it suggests the genny wasn't charging things when it was running or the batteries are toast or something else is draining the batteries.

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Old 02-15-2019, 05:47 PM   #6
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Default Further update Genset Stops Running

Further update..after completing the above post and the genset resting a few minutes it started fine, ran for 5 minutes, started gasping for gas (what I previously inacuurrately described as surging) for a minute and died. It will not immediately restart until a few minutes, but will eventually restart and again run for about five minutes and the cycle repeats. At least before having the choke adjusted, once it ran for a minute or so it would keep running. Frustrating!
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Old 02-15-2019, 06:06 PM   #7
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D&J Phillip's- I agree. But batteries are new. However due to problems having the battery charger, converter, and distribution system incorrectly replaced before this trip, they have been discharged in cold weather. The batteries are truly down per the hydrometer, but no dry cells. I have not been driving much the last few days but have plugged in for about 5 hours two days, using an external charger. I am confident the charger is now correctly installed but not confident about the current storage capacity of the batteries.
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Old 02-15-2019, 07:11 PM   #8
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Does your gen have the low oil cut-off and is the oil topped off?

What is your fuel source, gasoline or propane? If gas, make sure your tank level is above 1/3 since it is designed this way to prevent your generator from running your tank empty and stranding you. If propane, check to see your tank is not empty.
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Old 02-15-2019, 07:30 PM   #9
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Fuel level is 1/2 tank but do plan on filling up
. I will check oil level. Thanks.
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Old 02-15-2019, 09:14 PM   #10
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rowiebowie is right and another possibility regarding the fuel supply (if it is running on gas from the van tank) is the fuel line itself. Ours is a 1999 Xplorer and I had the same symptoms a while ago and replaced the fuel pump on the Onan and it still died after short runs until I found that the rubber fuel line from the van tank to the genny had build-up/blockage in it (could actually feel the obstructed area by squeezing the hose). I replaced the entire 20 year old fuel hose from the van tank to the genny and no problems since.

Chasing these kind of things requires patience and a certain amount of luck sometimes.
Dave
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