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Old 07-02-2011, 04:28 PM   #1
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Join Date: Jan 2011
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Onan 5500 control board location

Greetings! Can anyone please point me in the direction of the control board on an On an 5500 Marquis?

we just returned from a trip to Florida with our 02 Georgetown, and halfway through the generator stopped working. It will not stay running when I release the start button. I checked fuel supply to the generator, it's not low on oil, and it actually does have ignition with the button held down. That leads me to believe the issue might be found on the control board, which I can't seem to find. I have removed the plastic housing on the left which holds the 2 breakers and the actual start switch, but there's only a wiring harness under there, no board.
I also saw that the generator flashes a 14 error code.

I'm by no means a master mechanic, but I would like to be able to rule out some of the more obvious causes before I take the RV in to have it fixed by a 3d party.

thanks for reading

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Old 07-02-2011, 04:45 PM   #2
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Location: Bronston, KY
Posts: 709
I don't know where the control board is but we had he same problem with our '05 Georgetown with the 5500 Marquis Onan. Took it to a mechanic who cleaned fuel varnish out of the carb. Now, it runs great.



Life is a journey, not a destination.
2005 Georgetown 359ts
Bill & Virginia, Kentucky
Nights camped in 2011...78 , 2012...73,
Nights camped in 2013...123, 2014 ...101
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Old 07-04-2011, 12:40 PM   #3
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Thanks for the suggestion but I cleaned out the carb already. Sadly, that didn't fix it so I'm still on my quest.

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500, georgetown, onan, start

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