Question about NEC Mitsubishi MGE 2900 Generator- Voltage Regulation:AVR. Frequency: 60

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Mitsubishi 6700 generator runs but no power to recepticals could brushes be worn out

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Posted on Jan 02, 2017

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wadehartmann
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SOURCE: Mitsubishi MGE 6700 generator. Starts and runs

These generators have a GFI outlet on them, and they do fail. I would suggest you check all output circuits and see if you have any output. If so, pull the GFI and see if it is getting power to the outlet. If so, replace the outlet.

Posted on Nov 13, 2012

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Have a B&S VOX 6500 industrial generator with Honda motor. Generation quit and no breakers flipped. voltmeter shows 3.4 volts on both legs when running. What happened? and how do I fix?


It may be just as simple as flashing the fields. Remove the end cap of the generator. Look for the brush holder on the top center of the housing The brushes may be worn out or the fields may have lost the residual magnetism. The brush holder has two wires going to it, a red (positive) and a ?white (negative). Hook a couple of wires to a 12 volts battery. Plug a lamp into the generator that will light up when it begins to charge. BE VERY CAREFUL!!!!! Start the generator and momentarily connect the two wires to the brush holder connections. Make sure you observe the polarity Two or three seconds is plenty. If this doesn't work remove the brush holder and check brushes.

Dec 17, 2014 | Honda Electrical Supplies

1 Answer

Mitsubishi MGE 6700 generator. Starts and runs fine, but no longer putting out power. What would it cost to repair this issue?


These generators have a GFI outlet on them, and they do fail. I would suggest you check all output circuits and see if you have any output. If so, pull the GFI and see if it is getting power to the outlet. If so, replace the outlet.

Feb 20, 2011 | NEC Mitsubishi MGE 4000 Generator ROU...

1 Answer

I GOT A GENERAC GP500 ENGINE STARTS BUT DOESN'T PUT OUT ELECTRICITY


first check the brakers or fuses are still good or locked in,,,if they are then check that the brushes in the alternator are ok,,,,,
most faults are just worn out brushes,
however some times the brush box melts under the heat from a worn out set of brushes,,,,,its not often the rectifire blows unless its been over loaded

Aug 08, 2010 | Generac 5622 GP Series GP5000 6,250 Watt...

1 Answer

My generator runs but doesnt put out to the electrical outlets


You may have to check the wiring, With the engine off check the following: they may be a loose wire, the brushes on the generator may be too worn. Check for continuity from the outlet all the way to the generator.

Jun 06, 2010 | Porter Cable 6,500 Watt Contractor...

1 Answer

The generator runs fine but is not producing power


you will have to check the alternator and look for a pair of carbon brushes it may or may not have them if it does check them to make sure they are not worn too short

also if the windings are not burnt out look for an avr which could aslo have gone.
if it doesnt have an avr or brushes then the diodes may have gone on the armature or the capacitor

Apr 28, 2010 | Honda Electrical Supplies

1 Answer

Generator starts but does not generate power


  1. Check for any blown fuse and replace. It can be traced directly from the output lines.
  2. Check field excitation. The field excitation is supplied by the battery to the excitation coil through a pair of carbon brushes. If the brushes are worn out, no excitation field is supplied and no output is generated. Replace carbon brush if found worn-out.
  3. Use an analog multitester to check the continuity of the carbon brush and the field coil.

Sep 25, 2009 | Honda Electrical Supplies

2 Answers

My generator starts and runs great, It is not


  1. Check for any blown fuse and replace. It can be traced directly from the output lines.
  2. Check field excitation. The field excitation is supplied by the battery to the excitation coil through a pair of carbon brushes. If the brushes are worn out, no excitation field is supplied and no output is generated. Replace carbon brush if found worn-out.
  3. Use an analog multitester to check the continuity of the carbon brush and the field coil.

Sep 24, 2009 | Northstar Generator 18 Hp, 10,000 Watt,...

1 Answer

Runs great but will not produce electricity


To flash the excitor circuit on a coleman ( the generator is built by generac) you need a 12 volt battery. You quickly apply 12 volts via your 120vac recepticals. NO MORE THAN ONE OR TWO SECONDS! Then check you ac voltage. Most of the time the brushes are burnt up when voltage is low. Check the brushes first. You can access them by taking the end cap off of the generator via two to four screws. The brush holder is easy to spot, two wires leading to the front of the amature. Hope this solves your problem.

Mar 29, 2009 | Coleman Powermate Premium Plus 6250W...

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