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Generator runs, but does not generate electricity

I have a Valsi GV75MG1300TV 7500 Watt generator that I purchased and used after Hurricane Katrina. The motor still runs fine and I start it every few months, but when I needed power after Hurricane Gustav, it would not generate electricity. The Voltmeter on the Generator is not registering anything. It will occasionally bump off of zero, but not for any amount of time. I checked connections and flipped breakers, but have not gotten anything out of it. Reading the manual seems to indicate that a capicator or diode coule be broken?? I have also heard others say that sometimes generators need to be reset ot "Tickled". Please help. Thanks.

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  • Anonymous Sep 19, 2008

    I have the same problem with my Coleman 7500 Vertex Professional vertical gas generator. Engine runs and breakers don't seem tripped, but no juice. Perhaps a blown capacitor?

  • Charlie McIntire
    Charlie McIntire May 05, 2013

    same problem with a honda 7000

  • Anonymous Mar 28, 2014

    Have checked continuity in all coils. Checked and replaced the cap. checked the diode. All ok. have remagnitised. Still not generating any power.


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Reset / tickled? There are resistors and diodes in the end of the alternators rotor (the bit in the middle that spins) If these look ok visually then change the capacitor which is a barrel shaped object usually with 4 prongs on the end. Without a capacitor the genset will not produce a voltage.

Posted on Sep 19, 2008

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You can apply 12 volts to the output for a couple seconds, with the engine OFF, and it will bring back the magnetic field in the armature. If that didn't fix it, you have to rotate the shaft 180 degrees and apply the 12v to it again with the same polarity as you did the first time for a couple seconds, and it should work this time. Easy fix, done it many times.

Posted on Sep 21, 2014

Tuching small 9volt battary to brush leeds when off will recharge small exsiter

Posted on Nov 04, 2008

Yes on the 7500 series you sometimes lose the magnetic field - to correct this buy a 6 volt flashlight battery - with the unit off induce battery voltage to the brushes -then try to run - if it doesnt work try again . it may just be an exciter prob -

Posted on Oct 16, 2008

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I want to generate electricity by coupling two motor that is enough for my house hold

Posted on Jan 04, 2009

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