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10-18-2020, 11:15 AM
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#1
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Junior Member
Join Date: Mar 2016
Posts: 2
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Generator not getting enough juice to start
We have a 2006 National RV Dolphin on a Workhorse Chassis. I can't seem to get enough juice to start my Onan Marquis Gold 7000 generator. This has only happened since I took the unit in for service. I do need to replace the house batteries but my chassis battery is good. In looking at the BCC schematic is shows a 150 amp reset button for the generator and the jacks but I can't seem to find it. Where is it located? Also, does the generator use the house batteries or the chassis battery to start? Thanks
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10-18-2020, 11:24 AM
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#2
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Senior Member
Join Date: Aug 2001
Location: North America somewhere
Posts: 30,951
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Most use coach batteries for starting the genset, as the genset can recharge both battery banks,
As to your non-start issue, have you removed and cleaned all 12V connections between battery bank and genset yet?
Replacing batteries IF they do not pass a load test is the first step though.
__________________
2000 Winnebago Ultimate Freedom USQ40JD , ISC 8.3 Cummins 350, Spartan MM Chassis. USA IN 1SG 11B5MX,Infantry retired;Good Sam Life member,FMCA. " My fellow Americans, ask not what your country can do for you, ask what you can do for your country. John F. Kennedy
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10-19-2020, 01:12 AM
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#3
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Senior Member
National RV Owners Club Ford Super Duty Owner
Join Date: Sep 2010
Location: Horse Town USA, CA.
Posts: 3,783
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On my BCC the 150 breaker is in the lower right corner on the back side of the front circuit board. If your jacks work the breaker is not tripped. Go RV Custom Products web site and download documents for your BCC.
https://rvcustomproducts.com/111979
Attached is the BCC my Dolphin has. Also there is a National RV Owners Forum to post in.
https://www.irv2.com/forums/f105/
As Ray,IN mentioned make sure your batteries and cables are in good condition.
__________________
1999 35 ft. Dolphin 5350, F53, Banks System, 5 Stars Tune, Air Lift Air Bags, Koni Shocks, Blue OX TruCenter, TigerTrak track bars F&R, Roadmaster 1-3/4" rear auxiliary sway bar, 2004 F450 Lariat Pickup 6.0 Diesel Crew Cab DRW, 4X4, GVWR 15,000, Front GAWR 6,000, Rear GAWR 11,000, GCWR 26,000,1994 36ft Avion 5er, GVWR 13,700, 2,740 Pin Weight.
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10-19-2020, 03:17 AM
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#4
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Senior Member
Join Date: Jul 2014
Posts: 35,439
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If your house batteries are weak, and they most likely are the ones that start the generator, I think you identified your problem.
Unless its not cranking at all, the circuit breaker probably not your problem.
If you have a good chassis battery and a boost switch, have you tried that ?
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10-21-2020, 05:49 PM
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#5
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Junior Member
Join Date: Feb 2018
Posts: 29
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If house batteries are weak. There’s your problem
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10-21-2020, 06:36 PM
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#6
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Senior Member
Join Date: Aug 2010
Posts: 2,772
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Yup, just been there. Replaced the 4 house batteries and the generator started right up. Would not even turn over before.
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Terry & Alice
2006 Bounder 38L DP
2012 GMC Terrain
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10-21-2020, 07:27 PM
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#7
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Senior Member
Join Date: Aug 2014
Posts: 232
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Had a similar problem a couple months ago. Generator wouldn't start, just clicked rapidly. The boost switch didn't help either. I put a voltmeter on the 2 coach batteries, and they both showed a little over 3 volts. I put 2 new batteries in, and it started right up.
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Ken, Pat, and Peso
2016 Winnebago Vista 35F
2021 Chevrolet Equinox
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