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Old 04-15-2014, 11:38 AM   #1
Jim Wahl
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Red face Onan Q4000 genset problem

OK so it was humming away with no problems on Friday at the race when it just shut off. Wouldn't restart. Let it cool off. Nothing. It will turn over and start and run until you take your finger off of the outside manual start button. Anybody got any ideas?

It is a 2011 Onan Q4000 with the flashing light trouble signal on the outside start button but the only code that gives is the "service" three blink code. ??? Jim

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Old 04-15-2014, 12:15 PM   #2
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Default Re: Onan Q4000 genset problem

Jim if you push the button to stop once when it is still flashing 3 times, you should see a second fault code. Probably a series of two seperate blinks. If you can tell me what that is, I can give you more info. How many hours are on the machine?
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Old 04-15-2014, 06:35 PM   #3
Jim Wahl
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Unhappy Re: Onan Q4000 genset problem

Quote:
Originally Posted by Rich Biebel View Post
Jim if you push the button to stop once when it is still flashing 3 times, you should see a second fault code. Probably a series of two seperate blinks. If you can tell me what that is, I can give you more info. How many hours are on the machine?
Rich, the code it gives me is 32. that doesn't make sense according to my manual. That code is shown as a "low cranking speed fault", but it's not cranking slowly.
My unit has 839 hours on it. Jim

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Old 04-15-2014, 07:19 PM   #4
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Default Re: Onan Q4000 genset problem

Jim check your message inbox....
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Old 04-16-2014, 11:59 AM   #5
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Default Re: Onan Q4000 genset problem

Jim, I had a similar problem with mine years ago. I don't recall if it was the same code as you are getting though. Mine ended up being the circuit board. Replaced it and it started right up.
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Old 04-17-2014, 09:26 PM   #6
Jim Wahl
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Question Re: Onan Q4000 genset problem

Thanks Mac. Rich, I answered you, did you get it? Jim


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