Comments on: RV Generator Troubleshooting Tips

By: dennis mccarron

dennis mccarron — Tue, 24 Jan 2012 17:49:30 +0000

7500 onan starts right away, but only runs for 5 mins. think the code is 33, if we figure right. thanks for any help

By: dennis mccarron

dennis mccarron — Tue, 24 Jan 2012 17:45:49 +0000

anyone know what code 33 means

By: MIKE HANIS

MIKE HANIS — Tue, 24 Jan 2012 06:24:40 +0000

I HAVE A ONAN MICRO GENERATOR IN MY 1999 29′ WINABAGO MINNIE AND CAN’T TAKE CARBURATOR OFF TO CLEAN AS I HAVE TO STUFF RAG IN CARB,THROAT TO KEEP RUNNING AS IT SAT FOR 3 YEARS IT’S A GAS ENGINE DO I HAVE TO REMOVE CARB?? CAN I DO THAT TRICK OF THE ALTITUDE ADJUSTMENT AND PRY OFF THE STOPS OF THE NEEDLE SHAFT AND USE AS ADJUSTMENT FOR MAIN JET?? HELP PLEASE

By: TED

TED — Tue, 17 Jan 2012 13:53:08 +0000

I have a Onan 5500 on a 2007 5th wheel. It will start and run for about 5 minutes then stops. Flashes code 36, uncommanded stop, I beleive. Changed fuel filter and checked gas. Any help would be great. Thanks

By: Stanley

Stanley — Mon, 16 Jan 2012 21:54:15 +0000

I have 65HHHFA LP gas Onan generator. It runs fine but does not generate electricity. Switches are in the on position. Has anyone got any ideas what the problem could be? Thanks.

By: Keith

Keith — Wed, 21 Dec 2011 07:09:53 +0000

how to tell if starter relay is bad? can jumper starter to get to spin , but what makes bendex push out to turn flywheel? centrifical force? relay chatters when start button pushed, but not same volts go through to starter, should’nt same volts be at both big connectors? thanks

By: Tamara

Tamara — Sun, 04 Dec 2011 22:22:28 +0000

Hi,
We have an Onan 7500 quiet diesel, and an AC Source Manager II (in a class A diesel pusher). The genny has been running fine, until today when we turned it on. We ran the AC no problem. Looked at the source manager, and there is a troubleshoot light on.
The manual says that light means overtemp. It’s not hot out (about 80 degrees), and we weren’t running a full load. We turned off the generator, waited ten minutes, turned it on again, and the same light shows up.
Any ideas why it would be over temperature, or saying it is?

By: Rev

Rev — Wed, 14 Sep 2011 20:41:31 +0000

when onan generator shuts off it smell of raw gas but see no leaks anyone have any ideas Thanx Rev

By: Alice

Alice — Sun, 11 Sep 2011 22:40:46 +0000

I have a new RV (2011 MVP Tahoe) and already have problems with my Onan Generator. It seems when I run it during the day it will shut off soon after I turn on the AC. Anywerhe from 1 to 10 minutes. If I run it at night then it seems to be ok. I think it may be related to the outside temp. Since it is under warranty, I’ve had it serviced. First they said the parts were not spec and replaced. I got it back and I still had the same problem. Now they believe it is vapor lock. Would like to know if anyone else had this similar problem and what resolved it.

By: alan bikowski

alan bikowski — Mon, 15 Aug 2011 12:22:15 +0000

how do i adjust a carb on an onan 4000 mircoquiet generator? there is on screw on the carb and two in the back. please help!