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Engine overspeed light blinking

I see the light, what do I do about it? Generator won't even attempt to crank. Battery is good. Just changed the oil and coolant.

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  • nickzick Mar 09, 2009

    Hey there. I have the same problem, although overspeed light is not blinking, just lights up when engine tries to start up.



    It's a Perkins 4008TAG2 engine of an ABB genset. Any ideas?

  • Anonymous May 18, 2009

    I have a 15kw Kohler gerator with an overspeed light on continously and have not a clue how to get it off. Any help appreciated.

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  • 169 Answers

Hi there,
You probably have a broken magnetic pickup.
You'll have to reset the generator controller, usually this is just a matter of turning the switch of the off position. On most of the generators I've worked on a blinking overspeed light as opposed to a solid one means that the control board can't detect any speed input. Speed input can be either a wire that comes from the generator output, or a magnetic pickup mounted so that it can count flywheel teeth. You don't say which generator this is so I can't guess any better than that.
Regards,
Carl

Posted on Feb 23, 2009

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