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Onan 15.0JC-18R Control Box with Extra Relays


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  #21  
Old 04-13-2018, 10:47:55 AM
grif grif is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

Quote:
Originally Posted by MBB View Post
Quote "I wonder what the difference is between .02 and .020 "

My mistake. I should have known better.
i was trying to be funny,,, All I did was make it worse :-(

0.508mm it is
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  #22  
Old 04-13-2018, 11:04:00 AM
widlin1 widlin1 is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

Max, thanks, I need to replace the other relay, but may do both and copy what you did.

Jeff
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  #23  
Old 04-13-2018, 05:57:51 PM
MBB MBB is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

Quote:
Originally Posted by grif View Post
i was trying to be funny,,, All I did was make it worse :-(

0.508mm it is
Grif no offense taken.

I really do know better. Brain fart.
Mike
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  #24  
Old 04-18-2018, 05:18:07 PM
widlin1 widlin1 is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

Well I replaced the S11 relay with one of the ice cube relays and the generator started up on a BBQ tank and ran pretty smoothly after I covered the air intake with my hand and choked it manually. I don't know why that would have affected propane, but it did, or was just coincidence.

I tried uploading a video to photobucket but it didn't work, here is a picture of the new relay in the box.



I'll be back with some more questions reguarding wiring

Thanks

Jeff
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Old 06-08-2018, 05:20:28 PM
carolhagood carolhagood is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

I don't have an answer, just questions. Hubby has been working, trial and error style, on an Onan genset 15.0 JC 18R/17164AB (1975) and has no manuals or diagrams. It looks like 612-4794 wiring diagram may be the same since the control box pix looks like his. Is it? And if not, where do I get the correct one? Also, he thinks he may need to replace the relay and lead assy; part K12 307 -1527 B. Where can we get it (or any of the other parts)? He did just put in a new control board.
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  #26  
Old 06-08-2018, 05:35:02 PM
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Billy J Shafer Billy J Shafer is online now
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

I is better to start a new thread and keep all your questions on one thread. Makes it easy for us to help you. We can help you with all information you need. The serial number would help answer some questions we will have for you. The JC is in high demand. More and more people are looking for them. All information is free ask any question you need to.
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Old 06-10-2018, 07:40:36 AM
carolhagood carolhagood is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

Sorry, I'm new to this and didn't know how to "start a new thread". Serial no. is A840694289. Maybe he needs K11 instead.
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Old 06-10-2018, 08:14:18 AM
Wayne 440 Wayne 440 is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

Click here - https://www.smokstak.com/forum/forumdisplay.php?f=1

Then click the "button" in the red circle to start a new thread. It is easy, but I'll do it for you this time.
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Old 06-10-2018, 08:16:37 AM
Wayne 440 Wayne 440 is offline
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Default Re: Onan 15.0JC-18R Control Box with Extra Relays

New thread for this issue here - https://www.smokstak.com/forum/showt...34#post1490734
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