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Old 12-03-2019, 06:58 PM   #1
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Default Generator low voltage

After two years of sitting we got her running however Gen. Set only putting out 50 volts

1997 4100 SCR

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Todd
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Old 12-04-2019, 02:28 AM   #2
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There could be corrosion on the terminals. I would first verify the output with a handheld voltmeter and if confirmed try cleaning the electrical connections.
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1997 2400 SCR
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Old 12-04-2019, 01:06 PM   #3
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After verifying the reading is correct(low), check the engine RPM. Low voltage could be due to the engine not reaching proper RPM.
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Old 12-05-2019, 03:41 PM   #4
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Interesting. My Diesel Kohler is currently being serviced. It is also putting out low voltage. The Kohler appears to have a sensor which cuts power to the fuel pump in such a condition.

Technically, that is the default behavior for a Diesel generator. It's protection mode, is to simply cut 12v power to the fuel pump, effectively stopping the engine.
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Old 12-05-2019, 03:44 PM   #5
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As suggested above, make sure it's not the volt-meter or connections to the volt-meter. Check the voltage coming straight out of the generator itself. Then again, it is not uncommon for a voltage regulator/rectifier to go.
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