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 5/10/2015 9:25 AM
 
I have an older Onan generator in my RV. I have replaced the Control Board, oil level is proper, plenty of gas, batteries are fully charged. When I rease the start switch, generator will discontinue running. As long as I hold start switch in, generator runs. Any Ideas?????
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 5/12/2015 12:57 AM
 

For RVA Dave:

Dave, this happening rings a bell for reason.

Could you dig through the archives and find the thread where this was discussed (probably eons ago).

-----

Mike:

Let's hope that RVA Dave can find the ealier threads where this problem came up before. (My failing old brain can't remember where or when.)

Hang in there ...


Cheers and happy travels, Mike www.backroadtravelers.com
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 5/12/2015 8:03 PM
 
 Modified By RVA  on 5/12/2015 7:14:21 PM

Mike - Here's the link to the thread that discusses this problem. I had a similar problem with my Generac genset and it was caused by the oil level sensor, that's also mentioned in the below thread. If the switch inside the sensor gets stuck, the genset will run only as long as the start switch remains depressed. Here's how to troubleshoot the sensor...

1) The sensor is a small plug with one or two wires that's screwed into the engine block. If there's only one wire, disconnect it and make sure the wire isn't touching anything. If there's two wires, disconnect the wire coming from the control board, not the wire that connects to ground (the engine block).

2) Attempt to start the engine and see if it remains running when the start switch is released. If the engine remains running, the sensor is the problem. If the engine stops, go to the next step.

3) This step is necessary because I'm not sure whether the sensor switch is normally open or closed. Use a jumper to connect the wire directly to ground (the engine block). Or, you can reconnect the wire to the sensor and use a screwdriver to short the wire connector to the engine block. Again, start the engine and see if it continues running when you release the start switch. If the engine continues running, the sensor is the culprit. If the engine stops, the sensor is probably not the problem.

If you determine the sensor is the problem, it can be unscrewed from the engine block and replaced for about $20. Good luck. - Dave

www.rvamerica.com/TownTalk/RVAmericaF...

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