Question about Coleman Powermate Premium Plus 6250W Portable Generator

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Powered up Coleman Generator. Generator made grinding noise

Followed by burning smell. Prime mover works fine, but no power to outlets.

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I don't know what unit you have, but I would say it was overloaded and shorted out the stator, burned up the voltage regulator, exploded the capacitor, or had a loose connection that caused some wires to burn up. Maybe remove the end plate off the generator end and take so pictures and will go from there.

Posted on Feb 03, 2009

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I have a coleman powermate 6250-5000 running watts-generator. The generator starts and runs but does not produce current to outlets,the outlets are fine-they have continunity,I removrd the armature and...


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If you haven't seen it yet, here is a page that may help with a manual or parts list.

This problem sounds kind of bad, generators don't do well when the engine stops under load.
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.
Whining, a burning varnish smell, and breakers that trip all the time are indicators of long term overload problems. This could happen if you had most of the load on one winding for a significant amount of time, or if the one winding mostly powered motor-like loads with high startup currents.

You may want to look at this answer I posted some time ago.

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