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04-15-2018, 02:16 PM
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#1
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Junior Member
Join Date: Mar 2018
Posts: 5
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Onan Marquis 5500 Starting problem
I have a 2005 Winnebago Adventurer 35U with the Onan 5500 marquis Generator. It ran last fall but when I tried to start it the other day, It wouldn't turn over the Lights dimmed and it just clicked it was like the starter was seized. Would this probably be the problem, I don't think the engine would be seized. 497 hours on it.
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04-15-2018, 02:32 PM
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#2
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Senior Member
Ford Super Duty Owner
Join Date: Mar 2009
Location: Oregon
Posts: 2,758
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Sounds like a low battery. Make sure any disconnect switches are turned on. Start the engine, wait a short time to give it time to start charging the house battery and then try.
__________________
2016 Bounder 34T Anniversary Edition
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04-15-2018, 02:35 PM
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#3
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Senior Member
Join Date: Apr 2015
Location: SW Virginia
Posts: 362
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Dead battery most likely. Does Chassis start ? Ours will only start if Chassis battery is charged.
__________________
2003 Winnebago Adventurer 35U
2009 JK
2020 JT
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04-15-2018, 05:48 PM
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#4
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Registered User
Winnebago Owners Club
Join Date: Feb 2018
Posts: 1,336
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If the chassis batteries will start the engine press the Aux Start button while pressing the generator start button. After a few hours of run time the coach batteries may be charged up enough to start the generator on their own, or need to be replaced.
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04-15-2018, 09:00 PM
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#5
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Senior Member
Holiday Rambler Owners Club
Join Date: May 2013
Location: North Myrtle Beach, SC
Posts: 365
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What type of fuel does it use?
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Brad and Pat, the Dad and Mom-Dawgs with Kiddo and Dinah-Mite, the Dawter-Dawgs full timin' in our 2002 HR Neptune DP with 2017 Grand Caravan toad
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04-15-2018, 09:14 PM
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#6
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Community Administrator
Pond Piggies Club LA Gulf Coast Campers Outdoors RV Owners Club Entegra Owners Club Skyline Owners Group
Join Date: Mar 2002
Posts: 40,775
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When unplugged from power, if your 12v lights won't come on or are VERY low & your generator won't start, I'm thinking low house battery voltage. That's the 1st sign our house batteries were shot last fall. Our generator gets it power from the house batteries. Depending on the mfr, it could get its power from the chassis battery.
Lori-
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Lori (& Dave, my spirit guide) - RV/MH Hall of Fame Lifetime Member | My iRV2 Photo Albums
2016 Phoenix Cruiser 2350S, 2018 Phaeton 40IH,2006 Bounder 36Z, 2004 Cougar 285EFS, 2000 Aerolite 25FBR
There is great need for a sarcasm font. 
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04-15-2018, 09:29 PM
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#7
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Junior Member
Join Date: Apr 2018
Posts: 1
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Sounds like a low battery however I did have to replace the starter on mine. One more thing I found about the Marquis Gold people seem to have a lot of problems with the controller getting hot and throwing codes. I found that there is air flow in the back of the controller box from the fan but once the air enters it has now where to go. I drilled two half in holes in the from of the box just below the breakers and you now can feel the cool air coming out. No more problems with the controller over heating.
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04-16-2018, 09:41 AM
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#8
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Senior Member/RVM #90
Monaco Owners Club
Join Date: Nov 2002
Location: Columbus, MS
Posts: 54,794
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Quote:
Originally Posted by getchit
Sounds like a low battery however I did have to replace the starter on mine. One more thing I found about the Marquis Gold people seem to have a lot of problems with the controller getting hot and throwing codes. I found that there is air flow in the back of the controller box from the fan but once the air enters it has now where to go. I drilled two half in holes in the from of the box just below the breakers and you now can feel the cool air coming out. No more problems with the controller over heating.
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Joe & Annette
Sometimes I sits and thinks, sometimes I just sits.....
2002 Monaco Windsor 40PBT, 2013 Honda CRV AWD
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04-16-2018, 05:50 PM
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#9
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Senior Member
Monaco Owners Club
Join Date: Jan 2008
Location: Olympia, Wa
Posts: 2,772
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If you have not tried the emergency start yet, check battery monitor for house charge, if low, Start the chassis motor, let run a few minutes, push emergency start and put something under the opposite side of the switch to hold it on. Wait ten minutes and then try the Gen start again, also could hold stop side of the start for a minute, this should run the fuel pump, then try the start. It may take some cranking. So crank for 15 seconds and let the starter cool then try again. Let us know what happens.
LEN
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2004 Clss C 31' Winnebgo
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