| another onan question [message #284217] |
Fri, 07 August 2015 14:23  |
chasingsummer
Messages: 434
Registered: May 2011
Location: asheboro, nc
Karma: 0
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I install jumper from terminal 6 to 9 on bottom of control board.
Genny starts and runs good. Meter at kitchen outlet with front ac running swings slightly from 115 to 120. genny sounds good, atleast smooth. ac puts out cold.
Ior outside switch will not turn genny off.
I remove jumper while genny is running and it appears to continue running , and both switches will turn it off.
It will not restart unless i put jumper back on.
What all am i bypassing with jumper?
thanks to all.
bgk
brian
asheboro, nc
75 eleganza, 74 build
119k miles and counting,
DOG HOUSE
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| Re: [GMCnet] another onan question [message #284218 is a reply to message #284217] |
Fri, 07 August 2015 14:34  |
Mr ERFisher
Messages: 7117
Registered: August 2005
Karma: 2
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Senior Member |
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Prob the k1 relay. I will go find the duwane desc
On Friday, August 7, 2015, brian wrote:
> I install jumper from terminal 6 to 9 on bottom of control board.
> Genny starts and runs good. Meter at kitchen outlet with front ac running
> swings slightly from 115 to 120. genny sounds good, atleast smooth. ac puts
> out cold.
> Ior outside switch will not turn genny off.
> I remove jumper while genny is running and it appears to continue running
> , and both switches will turn it off.
> It will not restart unless i put jumper back on.
> What all am i bypassing with jumper?
> thanks to all.
> bgk
> --
> brian
> asheboro, nc
> 75 eleganza, 74 build
> 119k miles and counting,
> DOG HOUSE
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
--
Gene Fisher -- 74-23,77PB/ore/ca
“Give a man a fish; you have fed him for today --- give him a URL and
-------
http://gmcmotorhome.info/
Alternator Protection Cable
http://gmcmotorhome.info/APC.html
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| Re: another onan question [message #284226 is a reply to message #284217] |
Fri, 07 August 2015 17:05 |
A Hamilto
Messages: 4508
Registered: April 2011
Karma: 39
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chasingsummer wrote on Fri, 07 August 2015 14:23I install jumper from terminal 6 to 9 on bottom of control board.
Genny starts and runs good. Meter at kitchen outlet with front ac running swings slightly from 115 to 120. genny sounds good, atleast smooth. ac puts out cold.
Ior outside switch will not turn genny off.
I remove jumper while genny is running and it appears to continue running , and both switches will turn it off.
It will not restart unless i put jumper back on.
What all am i bypassing with jumper?
thanks to all.
bgk 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.
Pin 6 has 12volts (fused) only when the generator is running.
Pin 7 is the ground side of the coil of the start solenoid. Grounding this point should cause the starter to engage.
Pin 8 is an A/C "generator running" input to the board from the flywheel alternator. (The other side of this AC signal is pin 5.) It disengages the starter and "latches" the voltage provided to pin 9.
Pin 9 is the output of the board to BOTH the ignition and the fuel pump. If there is voltage here, the pump should be running and the points/coil should have power.
Pin 10 has 12volts from the starter solenoid when the starter is engaged. It provides power to pin 9 when starting.
Pin 11 is UN-FUSED 12 volts from the battery.
Pin 12 is the input of the board from the oil pressure switch. The switch applies a ground when there isn't oil pressure. Just disconnecting this pin disables the function.
NOW for the methods of jumping (bypassing):
The main differences in jumping is where the power comes from, all of them connect to pin 9 (electrically the same point as the + side of the coil, the fuel pump and the fuel shut-off solenoid):
Method 1.) Some jump from pin 11 but it is better to use fused power on pin 5. If pin 11 works but pin 5 does not, look at the fuse.
Method 2.) The most popular spot is pin 5. You still use the button on the board to get the starter to turn. But you need to un-jumper the pins to turn off the generator.
Method 3.) Relatively unknown method is pin 6. This disables the generator running and low oil pressure functions but maintains BOTH the start AND STOP functions of the board. As the lower pin 6 is right next to pin 9, a short one inch jumper can be left in place with the cover on and genset pushed back in the "Onan-hole." Be aware that if you try to start the generator but it doesn't start, there will still be power to the pump and ignition until you press "stop." While all methods keep the power on pin 9, it is just easier to forget without a wire hanging off the generator.
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| Re: another onan question [message #284230 is a reply to message #284217] |
Fri, 07 August 2015 17:48 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Pin 4 is where you connect your overtemp sensor, if one is needed in the installation.
--johnny
Foolish Carriage, 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
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| Re: another onan question [message #284242 is a reply to message #284217] |
Fri, 07 August 2015 19:43 |
MikeT
Messages: 225
Registered: November 2009
Location: Marine City, Michigan
Karma: 0
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Senior Member |
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Talked to Jim Bounds the other day about this. He said to jump from pos on starter to coil. Run continuously. BUT, do NOT use stop switch to turn it off or you will cook something. Said you must unhook jumper to use stop switch.
Mike Thomas
Marine City, MI
77 ex Palm Beach
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