Generator low voltage

[9Ball]

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

1997 4100 SCR

Thanks
Todd

[mmwjr]

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.

[jparsons121]

After verifying the reading is correct(low), check the engine RPM. Low voltage could be due to the engine not reaching proper RPM.

[shrew]

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.

[shrew]

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.