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Old 02-23-2020, 05:07 PM   #1
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Onan generator wonít start

We have a 1 year old Coachman Freelander and I canít get the generator to start. We are in New England and I had the dealer(Gander)winterize for us. The generator will turn over and start to come to life when I prime, but wonít stay on. I was at a 1/4 tank so I filled up. Still no luck. Our driveway is not level, so I brought the coach to street level, still no luck. We have never really used the generator, but it always started right up before this winter. Is there a fuel shut off that might have been used when winterizing?
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Old 02-23-2020, 05:10 PM   #2
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Quote:
Originally Posted by berferful View Post
We have a 1 year old Coachman Freelander and I canít get the generator to start. We are in New England and I had the dealer(Gander)winterize for us. The generator will turn over and start to come to life when I prime, but wonít stay on. I was at a 1/4 tank so I filled up. Still no luck. Our driveway is not level, so I brought the coach to street level, still no luck. We have never really used the generator, but it always started right up before this winter. Is there a fuel shut off that might have been used when winterizing?
Maybe. Have you asked them?
Check the oil level. Most of these little lawn mower engines have a low oil shutoff/shutdown.
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Old 02-24-2020, 09:32 AM   #3
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I'm not sure 'winterizing' the generator is going to clean the carburetor and you could have a carb that's gummed up.

The symptoms you describe are associated with that.

Do you use or did they add fuel treatment such as Stabil?

If the genny is getting gas, I would look at my carb. If you can get to it, try carb cleaner into the carb directly. Sometimes that works.
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Old 02-24-2020, 09:49 AM   #4
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It sounds like you may have a gummed up carb on the genset.

If you can get it running, it might be a good idea to run it for 2-3 hours with a remote tank of gas with Stabil fuel treatment added to it.

Otherwise, it will need the carb removed and cleaned.

That's why you need to run it every month or so to keep fresh fuel in the carb.

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Old 02-24-2020, 10:45 AM   #5
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Whether you or the dealer work on it, sounds like someone needs to remove and clean the carb bowl and spray cleaner on the jetting block. Add seafoam to the tank for the varnish you couldn't see.
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Old 02-24-2020, 12:42 PM   #6
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Some of these things have additional breakers and fuses located inside the generator compartment. Have a look around in there and see if maybe they tripped one while doing whatever they did to winterize it.
(p.s. I have no idea how you winterize an Onan generator. I've never done it, and I've never had a problem with any of mine )
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Old 02-24-2020, 02:10 PM   #7
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According to the diagrams (Onan Microlite 4000 Gas) slocated here, there's a fuse and a breaker located right near the on off switch inside the generator casing. Have a look at those.
https://www.manualslib.com/manual/12...page=23#manual
And if any of these suggestions fixes the problem, please post up the results, so others can benefit in future.
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Old 02-24-2020, 02:45 PM   #8
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Quote:
Originally Posted by Winterbagoal View Post
According to the diagrams (Onan Microlite 4000 Gas) slocated here, there's a fuse and a breaker located right near the on off switch inside the generator casing. Have a look at those.
https://www.manualslib.com/manual/12...page=23#manual
And if any of these suggestions fixes the problem, please post up the results, so others can benefit in future.
The breaker will not prevent it from running, only stops power out to mh.
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Old 02-24-2020, 03:33 PM   #9
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The breaker will not prevent it from running, only stops power out to mh.
Same for the fuse?
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Old 02-24-2020, 03:48 PM   #10
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Same for the fuse?
The fuse, if blown, will prevent it from cranking and/or attempting to start.

The OP says it does both.
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Old 02-24-2020, 03:52 PM   #11
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The OP has vanished. Not varnished.
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Old 02-24-2020, 09:46 PM   #12
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Choke may not be set for cold weather
Silver disc on the right side of the picture,loosen screw,turn to point as seen in picture
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