Forum Discussion
wsfurrie
Aug 18, 2013Explorer
If it only runs with the start button held down that is a sign that voltage is not leaving the generator. This could be brush's, it could also be the voltage regulator. There are ways to check the regulator without dropping the unit. Some allow  changing the regulator without dropping it and others don't. You need a good manual for your particular unit. It can be downloaded from Onan. Dropping the unit depends a lot on the make of your RV, but with a floor jack and an assistant it should not be beyond doing if you are handy. 
Good luck,
Wayne
Good luck,
Wayne
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