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Coleman powermate generator runs with no power

Engine runs, but neither outlet has power. tried with multiple devices, that worked with another generator

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If we assume for the moment, that the internals of the generator are all ok. This problem is usually caused by not running the unit on load for a long time, a year for instance. During this time the residual magnetism in the field coils will slowly decay. When the unit is running the field coils control the power generated by the main windings. The higher the excitation voltage in the field coils, the higher the voltage generated by the main windings. The field coils are controlled by their magnets which, once a voltage has been generated, they will then self excite themselves.
However, if all of the magnetism has decayed then the field coils cannot generated because they have no excitation to start them off.
What you need to do is to find the field coil windings and while the unit is running with a load plugged in to it, you need to flash a voltage across the field coils.this will excite the field coils, part of that is used to do whats called self-excitation, honest...it is.
If you do this then a 12 volt car battery is a sensible thing to use for a power supply. But, as soon as the field coils start to self-excite then that voltage will increase far beyond 12 vo9lts. That is why you need a good size load connected, As the unit starts to generate then that load will alert you to remove the temporary supply, if you leave it connected the battery acid would rapidly boil and it can split the battery cases. That is why it's called 'flashing' it up. Once generating it wants leaving for a good hour,
If that does not produce results then the fault is deeper and requires testing by a qualified engineer.

Posted on Nov 11, 2013

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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  • 13 Answers

SOURCE: no power out put

this may sound silly, but check the reset breaker buttons

Posted on Sep 20, 2008

CarlGehrke
  • 169 Answers

SOURCE: motor runs but have no power coming out of outlets of mygenerator

1 - Check the circuit breakers on the front of the panel where the outlets are located.
2 - Make sure the black molex plug on the back of the panel where the outlets are located is plugged in securely.
3 - Carefully take the plastic endbell off the generator ( you'll need a 7/16 inch wrench and socket) and look for broken or missing brushes, broken wires, etc.
4 - If you're not up for #3 take it to a good repair shop. :-)

Posted on Nov 29, 2008

protek480
  • 1730 Answers

SOURCE: My coleman powermate generator will start but will not generate.

The voltage regulator controls the output. You will need to check that first.

If you need further help, I’m available over the phone at https://www.6ya.com/expert/craig_3fa289bf857b1a3c

Posted on Aug 01, 2009

rwvanlue
  • 486 Answers

SOURCE: I have a Coleman Powermate 6250. Runs Great, No power to outlets!

Excite the genset.

with the gen engine running,
1) plug a 3/8 drill into an outlet,
(make sure the drill is set to the forward rotation)
2) hold the trigger in the run position
3) by hand, rotate the drill chuck with a quick flip of your wrist.
*** NOTE: BE PREPARED !!! this will excite the gen-set and the drill will start to run as normal.

I’m happy to assist further over the phone at https://www.6ya.com/expert/rolandw_c013176d62ee17ae

Posted on Nov 23, 2009

stunt driver
  • 5 Answers

SOURCE: Coleman powermate 2500 generator :

To what I know about this model - it IS NOT inverter type. Electrical motor works pretty much like car alternator with out reftifier. The ONLY magnet on rotor is a small, 1x2 initiation magnet, that helps to start the induction current. After that, induction current thru rotor is controlled by AVR (automatic voltage regulator) in a way, that output voltage stays at needed level.

The fact that you read 2.0 volts on output - tells you that your initiation magnet is OK. One of few things went wrong, in probability order: winding on rotor, AVR module, winding on stator, brushes woar out.

Take back cover off from electric generator part, use voltmeter to measure continuity on stator (2 or 3 poles, must be within 50 ohnm), continuity of rotor thru brushes ( normally within 100ohm). If broken - have to restore windings. It is DIYable for rotor, but hardly possible for stator. If those are ok - most probably your AVR is dead, you can not test it yourself, so get a new module to try (but try to make arrangements for return, if there it was not the reason).


Just fixed Champion 3500 generator myself, purchased for $50 as broken.

Posted on Jan 13, 2010

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