Onan 5.5 HJAB-901A starting problem
We don't use the generator very often, other than exercising it to prevent varnish build up in the carb. It's in an '02 Georgetown. I had used the drain screw to empty the float bowl when we parked...
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I had exactly the same problem and got the same code. The technician said it was probably the control board or slip rings. Turned out to be the slip rings. $410.00 later it runs like a champ. Good luck.
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