Question about Coleman Powermate Premium Plus 6250W Portable Generator

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I have a coleman 5000 that runs fine but it stops producing power after it runs for a couple of minutes.

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  • tbassco Mar 01, 2009

    Thanks, checked the brushes and they were wore out, changed them and now she purs like a kitten!

  • jersey3 Mar 02, 2009

    i have a coleman 6250w generator runs great but wont put out power i have already checked brushes

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Same answer as the last time you asked, likely a flying open. If the rotor test proves that your rotor isn't opening up, test the capacitor on brushless models or the voltage regulator board on brush generators.
Regards,
Carl

Posted on Mar 01, 2009

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This sounds like a "flying open" in the rotor. Over time a small part of the wire that winds around the rotor has gotten cracked just enough to open up when it's warm and being pulled on by the force of the rotor spinning. To test this further, take the wires off the brushes and connect an ohm meter across them then run the generator, if you see the ohm meter indicate an open circuit you've found the problem. This can be repaired but it means removing the rotor and finding the weak spot in the winding. You could replace the rotor for a couple of hundred dollars or get a new generator.

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