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Old 09-29-2010, 04:49 PM   #21
johnnydrz
 
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Default Re: Onan Generator, problem...

Hi everyone, I have a new-for-me 2005 RS Adventurous. The generator runs fine but I don't have any power inside the RV... I know there is a 5 AMP fuse (checked it) and a breaker next to it (tripped it repeatedly...) but still no power inside. In the book, there is no mention of anything else related to the genset power feeding the RV. Where should I measure the input voltage to the electrical circuit? I don't want to go to an RV place just so they can suck an insane amount of money just to tell me it's something I could have checked and fixed...

Thanks in advance,

Johnnydrz
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Old 09-30-2010, 12:55 PM   #22
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Default Re: Onan Generator, problem...

Check for a transfer switch. Your generator voltage
should be present there even if it does not work.
Also check it with shore power.




Quote:
Originally Posted by johnnydrz View Post
Hi everyone, I have a new-for-me 2005 RS Adventurous. The generator runs fine but I don't have any power inside the RV... I know there is a 5 AMP fuse (checked it) and a breaker next to it (tripped it repeatedly...) but still no power inside. In the book, there is no mention of anything else related to the genset power feeding the RV. Where should I measure the input voltage to the electrical circuit? I don't want to go to an RV place just so they can suck an insane amount of money just to tell me it's something I could have checked and fixed...

Thanks in advance,

Johnnydrz
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Old 09-30-2010, 03:28 PM   #23
boatmax
 
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Default Re: Onan Generator, problem...

Good advise; they do burn out, and there should have been smoke and a hot electrical smell, as I had in an old class A RV.
Max
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Old 10-06-2010, 01:18 PM   #24
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Default Re: Onan Generator, problem...

I don't know where the transfer switch is... I have no documentation that shows where it should be...
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Old 10-06-2010, 08:16 PM   #25
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Default Re: Onan Generator

I would go to one of the Roadtrek sites such as in Yahoo Groups and post the question.
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Old 10-06-2010, 08:50 PM   #26
boatmax
 
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Default Re: Onan Generator

Quote:
Originally Posted by mondmn70 View Post
I would go to one of the Roadtrek sites such as in Yahoo Groups and post the question.
It should be a small gray box, where both generator wiring and shore power wiring enter the box, with one set of 120 Volt wiring coming out the other end. The box senses a power source and switches to it, taking shore power over generator power, when it senses both.
Max
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Old 10-13-2010, 03:58 PM   #27
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Default Re: Onan Generator

Boatmax, swapped the transfer switch last night, fixed the problem! It is located in the rear passenger side, where the bed is.

Thanks!

Johnnydrz
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Old 01-13-2011, 12:07 AM   #28
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Default Re: Onan Generator

The transfer switch in the RT is in the left rearwell, next to the furnace.
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Old 01-14-2011, 02:07 AM   #29
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Default Re: Onan Generator

It's been 3 and a half months. If you haven't solved this yet,check the reset switch on the Onan. It's a breaker built into the genset. You have to crawl under the van and remove a panel on the Onan, the push the reset button to reset the breaker. Check your owners manual.
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Old 01-14-2011, 02:56 AM   #30
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Default Re: Onan Generator

A quite common problem with small generators is the spark arrestor screen in the exhaust gets plugged with carbon. This can cause hard starting, sluggish performance and stalling especially under load. Onan recommends cleaning the screen every 50 hours and I would bet that few people do it, as you have to remove the exhaust at the generator.

Partial causes of plugging are poor fuel, running with lights loads, cold starts, wrong heat range plugs, excessive lugging etc. This tends to be less of a problem in L/P generators than gasoline fueled engines.

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