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Old 05-29-2020, 06:15 PM   #1
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Generator switches

We have a 2016 Forest River Sunseeker 3050sf. Our Onan 4000 generator has been giving us problems for a while. The interior switch quit working, so we would start it from the external switch on the generator. Now that switch isnít working either. We have replaced some parts and done all the troubleshooting that makes sense and/or is available with the limited resources out there.
Does anyone have a wiring schematic or has anyone encountered this problem before?
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Old 05-29-2020, 06:24 PM   #2
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To me, it sounds like you've done everything a DIYer can reasonably do. Whatever problem you have it sounds like it was acute when the switch stopped working.

Plus, you've changed parts and done trouble shooting.

If this were my unit, I would be calling my rv dealer and ask where to have it serviced. Not all rv dealers perform this level of generator trouble shooting but your regions Cummins N Power certainly would.

My 2 cents. A new genny is about $4000 if your lucky.

Your cost to have it serviced is far less.

Chris
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Old 05-29-2020, 06:37 PM   #3
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Thanks Chris.
I guess I should mention that my husband is a mechanic. He is working on dropping the generator now — since this model doesn’t have a slide-out rack. It’s just really frustrating to try to troubleshoot with no actual diagrams. Even the Battery Control Center fuse diagram doesn’t list all the fuses inside — specifically all the “Ks” and the company’s website says the model is discontinued.
I’m hopeful that someone has some miracle advice.
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Old 05-29-2020, 07:29 PM   #4
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I am pretty sure I have manuals for a generator but not sure of the diagrams and detail. And they might not be what your looking for given the differences in model year.

2006 Sunseeker 2860ds with a 4KW Onan. I do have a start/stop and prime wall switch on the Convenience Center panel as well a switch on the generator itself.

Private message me with your email address on the FR app or reply with it to this message and I can send what I have - unless you get an offer from someone with a more aligned model year.

Good to know you have a mechanic in the house.

Chris
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2006 Sunseeker 2860DS
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Mohawk Luxury Vinyl Plank Flooring
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Old 05-29-2020, 07:32 PM   #5
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The service manuals can be found in many places on the web.

Here is a link to one.

With the problem you are having I would suspect an issue with the control module.
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Old 05-29-2020, 07:43 PM   #6
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I sent you a PM
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Old 05-29-2020, 07:44 PM   #7
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Thanks Steve. We did replace the control module as part of our troubleshooting. Gremlins I tell ya!
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Old 05-29-2020, 08:09 PM   #8
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I dont see a new PM yet but my model is a Microquiet and the manual is available as a PDF for you to download.

Also, the link above takes you to a PDF for the MicroLite series so I think you have everything you need.

Give those manuals a look. In the meantime I will go out to the RV and get the manuals I have. Not 100% sure but I think the installation manual might be one of them, which is separate I believe from the operators manual.

I will keep checking my PM.

Chris
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Old 05-30-2020, 07:27 AM   #9
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I still do not see a private message from you in my inbox on the Forest River App. Some have just sent their email address in these messages. I understand your concern about security, etc.

I do have the Onan Mobile GenSet Installation Manual for the KY model publication 981-0621 05-2000.

I have not looked on line but this manual may be available as a PDF to you and it does contain wiring diagrams.

I would post pictures of the diagrams on this message but my phone camera pictures are in a new format not recognized by the fr app.

Would be happy to copy the wiring diagrams for you and send to your email.

Chris
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2006 Sunseeker 2860DS
Powertrain: Ford V10 5 Speed Torq flite
Winegard T4 In Motion Satellite Dish
Furion Vison S Observation/Rear Camera
RecPro 70" Dual Recliners
Mohawk Luxury Vinyl Plank Flooring
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Old 05-30-2020, 12:08 PM   #10
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Thanks!

Chris,

I was able to use your recommended manuals (and save them).
Ultimately, when he was trying to drop the generator down, the bolt connecting the grounding strap was rusted to the point of needing to be cut out. And, the grounding strap itself was so worn and frayed that it had basically disintegrated.

The fix was to remove/replace the main chassis ground wire; replaced all intermediate ground wires running to the generator on all connections; and added two additional ground wires running from the main ground on the wiring harness to the solenoid. Also, all bolts were replaced.

Hopefully this can help someone else down the line.
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Old 05-30-2020, 12:25 PM   #11
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it just might be possible that the generator will work now that you have replaced the ground cables. no harm trying to see if it will start.
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Old 05-30-2020, 12:30 PM   #12
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Working

Yes, the fix actions made did indeed repair the generator (to include the interior switch).
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Old 05-30-2020, 01:13 PM   #13
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Great to hear. Kudos to you both, expert level repair!

Chris
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2006 Sunseeker 2860DS
Powertrain: Ford V10 5 Speed Torq flite
Winegard T4 In Motion Satellite Dish
Furion Vison S Observation/Rear Camera
RecPro 70" Dual Recliners
Mohawk Luxury Vinyl Plank Flooring
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