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PM0435003 Powermate - Damaged Capacitor on Board.

Hello,

My generator stopped putting out current while running. It was under a light load at the time, maybe 1000W and is rated for 6250W peak.

I have followed some of your suggestions, and the only obvious issue is the electrolytic capacitor on the circuit board in the bell housing appears to have leaked badly. Slightly swollen and signs of chemical stains on the cover.

Is this alone enough to shut down the current, and if so, how likely is it that damage was done to the main stators?

And then the most obvious follow up question, where can I get a new circuit board, or the capacitor to repair this one?

Thanks for your council and help.

Steve

Posted by on

  • s1mcgoo1 Dec 17, 2008

    Mentioned Flashing the generator several times in different posts.

    Could you post an explanation of what this does, and how to do it?


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Yes, having a leaky capacitor in there could prevent the generator from making electricity. This capacitor is the voltage regulation on brushless generators, and it's the smoothing cap on the models with brushes. I wrote a somewhat long explanation of how to troubleshoot powermate generators that may be of help.

Since writing that post I've found that the Pramac company has started suppling parts for powermates, you can find them at www.powermate.com One used to be able to obtain a brand new board from the company but not any of the individual parts. If you're going to go the "Radio Shack" route, I suggest that you also check all of the diodes on the board, they may have been spiked when the generator shut down under load. I wouldn't think your stator windings or your rotor windings got hurt, but since you've go tthe thing apart it can't hurt to check them.

Regards,
Carl

Posted on Dec 15, 2008

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Start by checking the circuit breakers in the distribution box (outlet panel) - you need ot do this with an ohm meter. After that check the power windings of the stator with the ohm meter, be sure to check between the 2 windings (should be open), and from each one to ground with the winding isolated.
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