Question about Coleman Powermate Powermate 5000W Generator

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Makita Generator no power

Hi Carl,

I have a Makita G1300R that stopped producing AC. I've checked it at the output (behind the receptacle panel) and no power there. The Makita tech (on the phone) said it was probably the condenser. Is that the same as the voltage regulator? He also said that there was no easy way to test it as he didn't know the values. I'm just looking for another opinion before ordering one.

Thank you,

Laurence DuBois

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Hi Laurence,
Hope you had as good a holiday as I did :-)
Yes the squareish thing in there is a kind of voltage regulator. More correctly, your brushless generator is using this capacitor to regulate output voltage by means of a resonant circuit between a winding on the stator and this part. The short answer is that you more than likely need a new one and because of its particular shape the only realistic source of the new one is Makita.

I disagree with the service tech about the testability of the thing, my Fluke 112 DMM has a capacitance function that would let me tell if your capacitor was shorted ( 0 mfd reading), open (infinate mfd reading), or some value that could be compared to whatever "known" one was applicable. In this case I'd take a loose guess that the reading of a good one is something like 20 - 100 mfd, but that's just a guess.

let me know if the new capacitor doesn't get it,

Posted on Jan 02, 2009

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Hi Carl,

I also have a Makita G6100R generator and my problem is slightly different. The generator only puts out 115VAC unloaded (as opposed to the 120VAC nominal rating). When I put it under 1/2 load the voltage sinks to about 103VAC. Is this also a capacitor problem or is this possibly a stator weakening magnetically? Thanks for any insight you can pass along.


Posted on Jul 28, 2009


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