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06-04-2023, 12:53 PM
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#1
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Winnie-Wise
Join Date: Aug 2007
Location: Coarsegold, CA
Posts: 264
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Marquis Gold 5500 stops when load removed
I am having a weird problem with my Marquis Gold 5500. When I exercize it with the AC it runs fine. When I turn the AC off, the generator stops. I can restart it and it runs fine.
It just came out of the Cummins shop after having the drive belt replaced. I will not be going back to that shop, I don't want to see them and they don't want to see me.
Any suggestions that don't require a trip to Cummins.
__________________
2001 Winnebago Adventurer, 35U, W-20 8.1
F+R Trac bars, F+R sway bars, SafTsteer, F Sumo Springs, 4 Koni FSDs
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06-04-2023, 01:03 PM
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#2
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,113
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If you don't already have an account, create one at https://quickserve.cummins.com/info/index.html and download the service manual for your genset. It has a great troubleshooting tree.
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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06-04-2023, 03:07 PM
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#3
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Winnie-Wise
Join Date: Aug 2007
Location: Coarsegold, CA
Posts: 264
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Quote:
Originally Posted by Ray,IN
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I must be missing something here. I created an account and all of the manuals cost hundreds of dollars.
The only thing that I found for Onan was a parts manual for $46.
__________________
2001 Winnebago Adventurer, 35U, W-20 8.1
F+R Trac bars, F+R sway bars, SafTsteer, F Sumo Springs, 4 Koni FSDs
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06-05-2023, 07:43 PM
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#4
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Winnebago Master
Join Date: Aug 2001
Location: North America somewhere
Posts: 2,113
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My bad, I forgot Cummins has all their literature copyrighted.
These utube videos might offer some insight into the problem.
I have no idea if this archives.org webpage may be useful, but here it is anyway: https://archive.org/details/manuals_rv_generators
__________________
2000 Winnebago Ultimate Freedom USQ40JD, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member,FMCA. "We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert the Constitution." Abraham Lincoln
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06-11-2023, 01:03 PM
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#5
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Winnie-Wise
Join Date: Aug 2007
Location: Coarsegold, CA
Posts: 264
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This is the model of genset, 5.5HGJAB-901A
Since I got a way to measure frequency, I have a better understanding of the failure.
With no load, the frequency gradually rises to 66 Hz and code 14
Under load (AC full blast), the generator keeps running at 63Hz.
When the load is removed, speeds up and code 14.
__________________
2001 Winnebago Adventurer, 35U, W-20 8.1
F+R Trac bars, F+R sway bars, SafTsteer, F Sumo Springs, 4 Koni FSDs
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06-12-2023, 11:12 AM
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#6
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Winnebago Camper
Join Date: Oct 2022
Location: going east
Posts: 18
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ah Just left Coarsegold a few weeks ago, nice place, we were at the skp park.
Anyway - Kevin Caudill did a video on the correct adjustments
https://youtu.be/SiJXLL0Lfy4?t=1152
https://www.youtube.com/@ktoutdoor/search?query=onan
__________________
2005 Winnebago Voyage 33v (2004 W22), Rear trac bar, Safe-t Steering stabilizer, Koni shocks all around, SumoSprings in the front, UltraRV ECM and TCM tunes + 2010 Jeep Grand Cherokee
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