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Kennyg's avatar
Kennyg
Explorer
Nov 20, 2020

Help! Onan 4K generator refuses to start and stay on

Pulled RV out of 6 month storage. Attempted to start generator. Will start, but quit after about 6 seconds. Repeated attempts with no success. When it does start, it runs only briefly. It seems to ...
Class C
Kennyg's avatar
Kennyg
Explorer
Jan 17, 2021
Dutch_12078 wrote:
Does the generator keep running if you hold down the start switch? If it does, that indicates that it's not putting out enough voltage to the control board to lock in the run cycle. It could be a faulty voltage regulator ($$$), or it could be dirty slip rings. Holding the start button down for a minute or two may clean the rings enough to keep it running. Worth a try anyway...


No. will run ,but as soon as I release button, the engine stops.

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