Quote:
Originally Posted by BeardyMcWeirdy
Understood.
Yes I’ve always taken fault codes with a grain of salt, since they’re designed to direct you to the culprit, but regularly I’ve found that the solution is a little less direct. (;
The generator only fires up for 1-2 seconds then shuts down. It always fires up in the first 1 or 2 cranks - which suggests to me that the spark/fuel/air is there, but then something else jumps in and kills it.
Also, it shuts down whether I’m holding the start button or not.
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Suspect either fuel cutting off or fuel solenoid voltage is cutting off. It’s easy to check fuel, disconnect fuel line from carb, press prime not start. Have line in cup , should shoot out nice spurts. Solenoid must have constant 12 volts on start and run. That fact that yours starts but dies guickly seems issue maybe elsewhere. Unfortunately control board sends voltage to both once started. In order to stay running generator has to be supply power to the board. In start mode battery power starts engine. Board is by passed. How many hours on generator?
Was it running fine? Has it been sitting long?
Mine did the same once and it was my carb. My last failure was electronic. Needed to say I’m not a big Onan fan. Especially the newer 4000 KY series. They don’t even have an oil sensor or oil level sensor. Now they will shut down on low oil pressure or will all of a sudden die if over filled. My friend Kevin works at Cummings Onan here in Tampa. Their booked solid. With generator repairs. He showed me a unit where critters actually chewed wires and the 12 volts for running was shorting to ground. He calls today’s units junk. Oh well , got to have a generator.
Luke
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