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Topic: Generator won't keep running (Read 532 times) previous topic - next topic

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  • nitehawk
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Generator won't keep running
Our propane generator will keep running as long as I hold the start toggle switch in.
Stumbles to a stop when I let go of the spring loaded toggle.
Two weeks ago I had tried starting it and didn't realize we were out of propane, but the stink let...

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Re: Generator won't keep running
Reply #1
Vapor or liquid LP generator? Said another way, on the propane tank, is the tap for the generator off the vapor port or liquid port?

  • Moby
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Re: Generator won't keep running
Reply #2
Our propane generator will keep running as long as I hold the start toggle switch in.
Stumbles to a stop when I let go of the spring loaded toggle.
Two weeks ago I had tried starting it and didn't...


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Re: Generator won't keep running
Reply #3
I know this one may be obvious, but check the oil level.  The old onan's have sensor that will not let you start if the oil level is too low.

Mike T

  • Moby
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Re: Generator won't keep running
Reply #4
Does that 10A fuse have to be good to crank also, or just start?
I forget.
  Brett?

  • nitehawk
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Re: Generator won't keep running
Reply #5
Adding: The last three or four years (since I replumbed to one regulator on the tank) the generator ran great.
This is the first time (two weeks ago and now today, with propane) that I attempted to run the generator since it was in storage for...

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Re: Generator won't keep running
Reply #6
Assume the generator is running on HIGH pressure vapor ("T" off before house propane regulator).

Re: Generator won't keep running
Reply #7
I know this one may be obvious, but check the oil level.  The old onan's have sensor that will not let you start if the oil level is too low.

Mike T
Mine was doing the same thing exactly....

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  • Twig
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Re: Generator won't keep running
Reply #8
Mine was the control board that the switch is attached to.

  • nitehawk
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Re: Generator won't keep running
Reply #9
Tomorrow afternoon is when I start "digging" into the problem.
Morning is filled with DW's Rehab and we are picking up our new specs.

  • nitehawk
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Re: Generator won't keep running
Reply #10
Latest:
Oil was 1/2 qt low. Now filled right to the full mark.
Same issue. Gen runs as long as I hold the start toggle (right below the monitor) but shuts off when I let it go.
Remote toggle in the bedroom doesn't work. Start/stop toggle on the face...

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Re: Generator won't keep running
Reply #11
Our generator fuel cutoff solenoid went bad, would start for about 1 sec then cut off.
But ours is diesel.

Re: Generator won't keep running
Reply #12
I had an older Onan (1981) gas generator on my previous rig and that generator had similar problem once. Turned out to be a bad relay.
If you can't find a solution by searching Google, your best bet may be to have it serviced by an Onan Service...

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  • nitehawk
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Re: Generator won't keep running
Reply #13
Based on all the troubleshooting videos and texts I think I will try replacing the circuit board.
Everything seems to point to the board as being the culprit.
Start/Stop on the circuit board doesn't work, and it did work when we bought the coach.
...

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Re: Generator won't keep running
Reply #14
Sounds like a controller issue, as you have determined.
Please share you results. Thanks and good luck.

Re: Generator won't keep running
Reply #15
Might remove the plug for the remote wiring at the generator and then try the switch at the generator.

  • nitehawk
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Re: Generator won't keep running
Reply #16
I'll try it tomorrow

  • nitehawk
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Re: Generator won't keep running
Reply #17
The new Dinosaur board showed up today. Put it in.
Turned on propane at the tank. Rocked the rocker switch on the generator to "START" and guess what? IT STARTED AND KEPT RUNNING!!
Start and stop on the dash also works, but remote in the bedroom...

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