Quote:
Originally Posted by RJTennessen
Installed in Airstream Intersatate. A year ago, while under warranty, the generator died while running and powering the AC on a hot day. It restarted but would not continue running unless the starter button was continually depressed. (In that condition it does not generate electricity.) Cummins Onan fixed it but did not explain to the RV dealer the cause of the problem or what was done to fix it.
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I had exactly the same problem. What had happened to me was that the generator's voltage regulator fried. Literally. My Cummins dealer showed me the scordched circuit board after they replaced it.
When you start the generator, you're spinning the starter, and sparking the spark plug, off the house batteries. But as soon as the engine starts and you release the start switch, spark is provided by the generator itself, through the voltage regulator. With the voltage regulator not working, there's no spark and the engine dies.
It's rare, but it happens.