Home » Public Forums » GMCnet » Source for replacement K2 & K3 relays on the Onan control board
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| Re: Source for replacement K2 & K3 relays on the Onan control board [message #213499 is a reply to message #213497] |
Sat, 06 July 2013 17:03   |
Ken Burton
Messages: 10030
Registered: January 2004
Location: Hebron, Indiana
Karma: 10
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Senior Member |
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| bpimm wrote on Sat, 06 July 2013 16:07 |
Are these relays or a direct replacement available? If not what is the choice part to swap in?
Thanks
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K3 is available. There is no known direct replacement for K2. I do not have the number for K3 in front of me, but I buy them at the local electronics store. They also seldom fail. K3 on the other hand, K2 frequently fails due to the capacitor in the circuit or diode in series with it failing.
Duane Simmons use to take another small relay and wire it to the board, then he would cover it with the original K2 relay cover. If you do this you need to look carefully at the resistance of the relay coil on the new relay. Then you need to change (usually lower) the resistance of the series resistor to have 12 volts across the coil when the generator is running.
I have fixed a few of these with K2 failures but any more I just tell people to buy a new dinosaur board from Jim K. In the end it usually is more reliable.
Ken Burton - N9KB
76 Palm Beach
Hebron, Indiana
[Updated on: Sat, 06 July 2013 23:56] Report message to a moderator |
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| Re: [GMCnet] Source for replacement K2 & K3 relays on the Onan control board [message #213505 is a reply to message #213499] |
Sat, 06 July 2013 17:29 |
jimk
Messages: 6734
Registered: July 2006
Location: Belmont, CA
Karma: 9
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Senior Member |
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Duane S was doing all our boards, but it got to a point to where we were
running int an reliability issue.
Weare now ssupplying the Dinasour boards with a pigtail and standard.
They carry a 2year warrenty. We never ask for proof, just your word and
send you a new one n/c immidiatly and ask that you return the defective to
us.
Manufactures know that distributors in general do not like to handle
warranty , so they let us call the shots.
We use warranty as a way of showing our customers that we never use days or
milage to say it is out
On Sat, Jul 6, 2013 at 3:03 PM, Ken Burton <n9cv@comcast.net> wrote:
>
>
> bpimm wrote on Sat, 06 July 2013 16:07
> > Are these relays or a direct replacement available? If not what is the
> choice part to swap in?
> >
> > Thanks
>
> K3 is available. There is no known direct replacement for K2. I do not
> have the number for K3 in front of me, but I buy them at the local
> electronics store. They also seldom fail. K3 on the other hand, K2
> frequently fails due to the capacitor in the circuit or diode in series
> with it failing.
>
> Duane Simmons use to take another small relay and wire it to the board,
> then he would cover it with the original K2 relay cover. If you do this
> you need to look carefully at the resistance of the relay coil on the new
> relay. Then you need to change (usually lower) the resistance of the
> series resistor to have 12 volts across the coil when the generator is
> running.
>
> I have fixed a few of these with K2 failures but any more I just tell
> people to buy a new dinosaur board for Jim K. In the end it usually is
> more reliable.
> --
> Ken Burton - N9KB
> 76 Palm Beach
> Hebron, Indiana
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
--
Jim Kanomata
Applied/GMC, Fremont,CA
jimk@appliedairfilters.com
http://www.appliedgmc.com
1-800-752-7502
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Jim Kanomata
Applied/GMC
jimk@appliedairfilters.com
www.appliedgmc.com
1-800-752-7502
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| Re: [GMCnet] Source for replacement K2 & K3 relays on the Onan control board [message #213566 is a reply to message #213517] |
Sun, 07 July 2013 00:47 |
Ken Henderson
Messages: 8726
Registered: March 2004
Location: Americus, GA
Karma: 9
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Senior Member |
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Johnny,
IIRC, at the bottom right corner of the Onan diagram I mentioned last
night, for which Emery provided the URL, there are ECC numbers for the
relays. Whether they're still available is an open question.
Ken H.
On Sat, Jul 6, 2013 at 4:28 PM, Johnny Bridges <jhbridges@ymail.com> wrote:
> K3 looks like a simple 12V relay... K2 looks to be current sensitive.
> MagneCraft oughta to have a functional replacement for each, probably you'd
> have to adapt the connections. Onan may well stock them - for a price.
>
> --johnny
>
> From: Brian Pimm <brian@pimmlabs.com>
> To: gmclist@temp.gmcnet.org
> Sent: Saturday, July 6, 2013 5:07 PM
> Subject: [GMCnet] Source for replacement K2 & K3 relays on the Onan
> control board
>
>
>
>
> Are these relays or a direct replacement available? If not what is the
> choice part to swap in?
>
> Thanks
> --
> Brian & RaeDean
> 1973 26' #383
> Washougal Washington
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
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Ken Henderson
Americus, GA
www.gmcwipersetc.com
Large Wiring Diagrams
76 X-Birchaven
76 X-Palm Beach
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| Re: [GMCnet] Source for replacement K2 & K3 relays on the Onan control board [message #213571 is a reply to message #213568] |
Sun, 07 July 2013 07:37 |
bpimm
Messages: 211
Registered: June 2013
Location: Washougal Washington
Karma: 2
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Senior Member |
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I haven't pulled the board out yet to troubleshoot, I had no power to the coil and when I jumped it it ran. I figured that at this age might as well replace both if they're available. K3 might be good still, I'll have to get the board on the bench and see what I find. It's a lower priority so the other repairs go first. one more Fender well, the water system, new roof top air, seat mounting etc. etc.
Brian & RaeDean
1973 26' #383
Washougal WA
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| Re: [GMCnet] Source for replacement K2 & K3 relays on the Onan control board [message #213591 is a reply to message #213566] |
Sun, 07 July 2013 10:17 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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I'll have a look. ECC? ECG maybe? ECG stuff crosses usually to MangneCraft. I didn't like the looks of the coil connections on Stick's Onan. It's running and making power... but the problems with it were pretty much due to loose connections on the engine control board as a result of age and vibration. We got them corrected, but you really can't do much with the relay coil connections. On K3 they're soldered... no problem. On K2 they are stuck under the rivets which hold the PCB connectors... three dissimilar metals. Consequently, I'd replace K2 with something which has a better - or at least newer - coil-to-PCB connection. I noted also, the conformal coating is shedding, again due to age. Once everything is working, it wants recoating. Carefully.
--johnny
'76 23' transmode Norris
'76 palm beach
From: Ken Henderson <hend4800@bellsouth.net>
To: gmclist <gmclist@temp.gmcnet.org>
Sent: Sunday, July 7, 2013 1:47 AM
Subject: Re: [GMCnet] Source for replacement K2 & K3 relays on the Onan control board
Johnny,
IIRC, at the bottom right corner of the Onan diagram I mentioned last
night, for which Emery provided the URL, there are ECC numbers for the
relays. Whether they're still available is an open question.
Ken H.
On Sat, Jul 6, 2013 at 4:28 PM, Johnny Bridges <jhbridges@ymail.com> wrote:
> K3 looks like a simple 12V relay... K2 looks to be current sensitive.
> MagneCraft oughta to have a functional replacement for each, probably you'd
> have to adapt the connections. Onan may well stock them - for a price.
>
> --johnny
>
> From: Brian Pimm <brian@pimmlabs.com>
> To: gmclist@temp.gmcnet.org
> Sent: Saturday, July 6, 2013 5:07 PM
> Subject: [GMCnet] Source for replacement K2 & K3 relays on the Onan
> control board
>
>
>
>
> Are these relays or a direct replacement available? If not what is the
> choice part to swap in?
>
> Thanks
> --
> Brian & RaeDean
> 1973 26' #383
> Washougal Washington
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://temp.gmcnet.org/cgi-bin/mailman/listinfo/gmclist
>
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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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