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02-11-2020, 01:20 PM
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#1
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Senior Member
Join Date: May 2016
Posts: 323
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Onan generator no start
02 KS diesel pusher went out to start to today and the MH started right up. Then I tried to start the generater and nothing, no clicking are grinding. The switch just keeps blinking while it is pressed down. I need to get this figured out because I have to have concenter running for my 02. Everything else seems fine. Thanks
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02-11-2020, 01:31 PM
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#2
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Senior Member
Spartan Chassis
Join Date: Jan 2018
Location: Colorado Springs
Posts: 302
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Try pressing the other side of the switch.
__________________
RodB
2019 DS 4018 (Spartan), Nighthawk
2015 Jeep Wrangler Sahara
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02-11-2020, 02:07 PM
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#3
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Senior Member
Join Date: Jul 2014
Posts: 35,419
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Try holding the boost switch, while starting the generator.
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02-11-2020, 02:29 PM
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#4
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Senior Member
Join Date: Jan 2018
Posts: 3,009
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If it has been quite awhile since you ran it last you might need to prime the fuel line by holding the bottom of the start switch down for a full minute.
__________________
2005 Monaco Knight 40PLQ; Cummins 8.3L ISC330, Pacbrake, Allison 3000, Roadmaster RR8R, ScanGauge D, 2004 Kawasaki Vulcan VN750(Geezer Glide) on a Versahaul carrier pulling a 2013 Kia Soul+; 2.0L, 6 speed Sport shifter(great car) on an American Car Dolly(great dolly.)
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02-11-2020, 03:24 PM
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#5
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Senior Member
Join Date: May 2016
Posts: 323
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Onan
I held the switch down and I tried the Boost too
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02-11-2020, 05:41 PM
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#6
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Senior Member
Join Date: Mar 2019
Location: Payson, AZ
Posts: 380
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Fuel
Do you need a certain amount of fuel in the tank before the GEN will start?
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2017 Newmar
Bay Star 3401
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02-11-2020, 05:59 PM
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#7
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Senior Member
Excel Owners Club Winnebago Owners Club Ford Super Duty Owner
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 6,808
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Is the generator gas or diesel or LP? What model? When was the last time you ran it?
Does it start off the chassis or house battery(s)?
I'd check voltage of which ever battery it starts from and fuel levels as starters.
__________________
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO & Coach House 272XL E450
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
[SIGPIC][/SIGPIC]
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02-11-2020, 06:26 PM
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#8
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Senior Member
Join Date: May 2016
Posts: 323
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Onan Deisel
It is a whisper quite 7500 deisel. It has never had any problems.
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02-11-2020, 06:30 PM
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#9
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Senior Member
Join Date: May 2016
Posts: 323
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Diesel Onan
Fuel level is almost 3/4 tank I don’t which batteries it starts off of. It has been hook up to AC. The motor cranked right over and I held the boost down and still didn’t get thing out of it
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02-11-2020, 06:46 PM
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#10
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Senior Member
Excel Owners Club Winnebago Owners Club Ford Super Duty Owner
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 6,808
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If the solenoid that connects the chassis and battery together is not working, they do fail, it's no help. I'd guess that the generator starts off the house battery. So I'd be checking the voltage of the house batteries.
Never worked on that Onan model. When you press the Stop side of the switch do you hear any sound? That should start priming the generator. I'd really do this from the On/Off switch mounted on the generator itself, not from inside the RV. You would have to remove the outer generator cover to access it. If there's no sound at all, I'd suspect the fuel pump is bad. That can be better tested by pulling the fuel line off the carb and see if there's a solid flow of fuel out of the fuel line when you run the priming process. Best if you try to catch the fuel in a bottle to discard.
__________________
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO & Coach House 272XL E450
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
[SIGPIC][/SIGPIC]
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02-11-2020, 07:38 PM
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#11
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Junior Member
Join Date: Dec 2018
Location: Wake Forest, NC
Posts: 7
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My generator starts from the house batteries so I have to be sure my battery disconnect is turned on. Do you have one and is it on?
__________________
2001 Winnebago Brave WPF30W
2000 Workhorse Chassis
Home Base: Wake Forest, NC
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02-11-2020, 08:46 PM
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#12
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Registered User
Join Date: Apr 2016
Posts: 370
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Quote:
Originally Posted by okie mopar
It is a whisper quite 7500 deisel. It has never had any problems.
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When cold, to start via the switch in the coach I have to press and hold the start button for 10-20 seconds (the light flashes) while the glow plug preheats the combustion chamber and then it starts.
Using the button on the generator bypasses the warmup sequence.
In warm weather, no preheat step.
The glow plug is covered in the manual.
My2c.
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02-11-2020, 10:02 PM
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#13
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Senior Member
Excel Owners Club Winnebago Owners Club Ford Super Duty Owner
Join Date: Aug 2014
Location: Santa Fe, NM
Posts: 6,808
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Makes sense, never had a diesel generator, just my diesel RAM 3500 and a Ford F250 diesel.
Question, when being serviced removed from an RV how would a tech run the preheat sequence, if it were cold?
OP says no sounds at all. Could also be the start solenoid is bad. That would prevent anything from getting power I believe. On mine the fuel pump is on the load side of the solenoid.
__________________
Fred & Denise (RVM157) New Mexico
2007 Excel Classic 30RSO & Coach House 272XL E450
2007 RAM 3500, Diesel, 6Spd Auto, SWD, 4x4, CC & LB
[SIGPIC][/SIGPIC]
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02-12-2020, 09:31 AM
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#14
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Junior Member
Join Date: Sep 2018
Posts: 3
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Had the same trouble with my 97 DS found a bad ground on the Generator to frame of MH
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Linear Mode
