Onan remote start

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randy1

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Jul 5, 2007
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I am looking to replace the remote inside genset start switch. I replaced my 4.5 Kw Kohler with a 6.0Kw Onan. The Onan came with a remote start switch
and hourmeter, etc. I would prefer not re-wiring the line from the inside of the coach to the genset and just re-use the existing wire. Is this
feasible? The switch has start, run and stop functions as well as hourmeter power, but I am unsure of how they correspond to the wiring at the genset
end. Any ideas?

--
Randy
1973 26' Painted Desert
Ahwatukee (Phoenix) AZ
 
Randy,
I'm sure we have some used ones here in our inventory.
Call me.

> I am looking to replace the remote inside genset start switch. I replaced
> my 4.5 Kw Kohler with a 6.0Kw Onan. The Onan came with a remote start switch
> and hourmeter, etc. I would prefer not re-wiring the line from the inside
> of the coach to the genset and just re-use the existing wire. Is this
> feasible? The switch has start, run and stop functions as well as
> hourmeter power, but I am unsure of how they correspond to the wiring at
> the genset
> end. Any ideas?
>
> --
> Randy
> 1973 26' Painted Desert
> Ahwatukee (Phoenix) AZ
>
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk
http://www.appliedgmc.com
1-800-752-7502
 
> I am looking to replace the remote inside genset start switch. I replaced my 4.5 Kw Kohler with a 6.0Kw Onan. The Onan came with a remote start
> switch and hourmeter, etc. I would prefer not re-wiring the line from the inside of the coach to the genset and just re-use the existing wire. Is
> this feasible? The switch has start, run and stop functions as well as hourmeter power, but I am unsure of how they correspond to the wiring at the
> genset end. Any ideas?
Note: Pins 1 to 6 have two pins each, one across the top to connect to the remote and another down lower, mixed in with the rest of the stuff.

Pin 1 is ground for the board. it is also connected to the remote, providing a ground to the remote switch.

Pin 2 is the input to the board for the remote stop function. Grounding this pin cause the board to shut off the generator.

Pin 3 is the input to the board for the remote start function. Grounding this pin cause the board to start the generator.

Pin 4 doesn't seem to be used in our application. Looks like another input into the same circuits that the oil pressure switch connect to.

Pin 5 is FUSED 12 volts from the battery. It would be used for the battery condition meter if you have one.

Pin 6 has 12volts (fused) only when the generator is running. It goes to the "Generator running" indicator and/or the hour (Hobbs) meter.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
> > I am looking to replace the remote inside genset start switch. I replaced my 4.5 Kw Kohler with a 6.0Kw Onan. The Onan came with a remote
> > start switch and hourmeter, etc. I would prefer not re-wiring the line from the inside of the coach to the genset and just re-use the existing
> > wire. Is this feasible? The switch has start, run and stop functions as well as hourmeter power, but I am unsure of how they correspond to the
> > wiring at the genset end. Any ideas?
> Note: Pins 1 to 6 have two pins each, one across the top to connect to the remote and another down lower, mixed in with the rest of the stuff.
>
> Pin 1 is ground for the board. it is also connected to the remote, providing a ground to the remote switch.
>
> Pin 2 is the input to the board for the remote stop function. Grounding this pin cause the board to shut off the generator.
>
> Pin 3 is the input to the board for the remote start function. Grounding this pin cause the board to start the generator.
>
> Pin 4 doesn't seem to be used in our application. Looks like another input into the same circuits that the oil pressure switch connect to.
>
> Pin 5 is FUSED 12 volts from the battery. It would be used for the battery condition meter if you have one.
>
> Pin 6 has 12volts (fused) only when the generator is running. It goes to the "Generator running" indicator and/or the hour (Hobbs) meter.
I have down exactly what you are trying to do.
http://gmc.mybirdfeeder.net/GMCforum/index.php?t=msg&goto=298834&rid=2083&srch=onan+switch
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
Before you start, make a 'truth' table showing the colors used by the Onan remote, with function and the colors used by the new switch/genet. You may
find someone installed wires that are too wimpy to handle the load. Genet in my coach was remote wired with CAT 3 (telephone grade). I did not trust
it to do the job and I completely bypassed the run.
Tom, MS II
--
1975 GMC Avion
KA4CSG
 
The diagram is very helpful. I'm not sure I was clear that I have a stock Onan on one end of the wiring and a stock Onan remote switch on the other
with Kohler wiring connecting the two. I am going to assign the wires to the appropriate connections on each end. Without the wiring diagram, I'd be
just guessing, so thanks again.

--
Randy
1973 26' Painted Desert
Ahwatukee (Phoenix) AZ
 
> The diagram is very helpful. I'm not sure I was clear that I have a stock Onan on one end of the wiring and a stock Onan remote switch on the
> other with Kohler wiring connecting the two. I am going to assign the wires to the appropriate connections on each end. Without the wiring diagram,
> I'd be just guessing, so thanks again.
I am pretty sure the new Onan switch innards are the same as what came on the GMC from the factory. Since you apparently didn't read the post I
pointed to, here is a quote of the last paragraph. Description is from the view of looking at the switch from the back of the switch:

"Board pin 1 is ground and goes to the middle left connector on the switch, board pin 2 is start and goes to the top left of the switch, board pin 3
is stop and goes to the bottom left of the switch, board pin 6 is run indicator lamp/hobbs meter and goes to the top right on the switch, and board
pin 5 goes to the bottom right of the switch for the battery condition meter if you have one."

I may have pins 2 and 3 mixed up in that post, but if you press the start and nothing happens, and you press stop and it tries to start, they are
reversed.

Assign wire colors to them and get on with it.
--
73 23' Sequoia 4 Sale
73 23' CanyonLands Parts Unit 4 Sale
Upper Alabama
"When I grow up I am going to be a curmudgeon."
 
You need - and have - four wires. Simply assign them by color at each end according to your Onan book. As to wire size, the Onan control runs off
the fused 12V so pretty much any wire will do. I've a Kohner 4.5KW 'thumper' in the shop which came out of my SOB if anyone is interest5ed.

--johnny
--
76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
"I forgive them all, save those who hurt the dogs. They must answer to me in hell" - ol Andy, paraphrased
 
On the rocker switch, if you push on the upper portion of the switch you
are making electrical connection on the bottom side. Pin #2 goes to bottom
and pin #3 goes to top of switch

On Thu, Mar 9, 2017 at 9:39 AM, Johnny Bridges via Gmclist <

> You need - and have - four wires. Simply assign them by color at each end
> according to your Onan book. As to wire size, the Onan control runs off
> the fused 12V so pretty much any wire will do. I've a Kohner 4.5KW
> 'thumper' in the shop which came out of my SOB if anyone is interest5ed.
>
> --johnny
> --
> 76 26' Eleganza(?) with beaucoup mods and add - ons.
> Braselton, Ga.
> "I forgive them all, save those who hurt the dogs. They must answer to me
> in hell" - ol Andy, paraphrased
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>

--
Bruce Hart
1976 Palm Beach
Milliken, Co
GMC=Got More Class
 
If 3 is start and top of switch is start-- you want 3 to go to bottom teminal due to opposite switch action. One side of switch is common, start and
stop. Other side is for indicator lamp only

--
John Lebetski
Woodstock, IL
77 Eleganza II
 
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