Here is some reasons of failure to generator electricity:
1.After the generator is stopped, the residual magnetism is often lost, because the material used for the magnetic pole of the exciter is close to the soft steel, and the residual magnetism is small. After the shutdown, when there is no current in the excitation winding, the magnetic field will disappear.
2.The magnetic pole of the generator loses its magnetic properties.
3.Damage of excitation circuit components or circuit breakage, short circuit or grounding phenomena.
4.The exciter brush is not in good contact with the commutator and pressure of brush holder is insufficient.
5.Excitation winding wiring error, opposite polarity.
6.Stator winding and rotor winding of generator set open circuit.
7.Poor contact between generator brush and slip ring, or insufficient brush pressure.
8.Generator lead wire wiring is loose or switch contact is poor.
9.The fuse box is fused.
10.The "auto-manual-de-excitation" switch on the control panel is in the de-excitation position (automatic generator set has "auto-manual-de-excitation" switch).
11.The voltmeter is damaged.
12.Rotary rectifier module is damaged.
SOURCE: powermate pm0545005 generator engine runs but no power out
Hi,
I posted a general "how to" about troubleshooting Powermates here.
Don't forget to rate answers you like,
Carl
SOURCE: electrical wiring for kohler engine
Perhaps you would enjoy the entire service manual. Here it is: http://www.asberry.net/files/TP-2379.pdf
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
SOURCE: how to adjust voltage output from generator ?
As long as your appliances are working properly I wouldn't worry. A 10V drop from the norm is not that crazy and certainly not abnormal. If it drops down to 205 or 200 then I would worry. I'm not familiar with the internal components of a home generator but I would imagine they are not as precise as the machines the power companies use. And when you look at it from a phase point of view its even less of an issue. There are 110-120V per single phase and 220-240V double phase. So on each phase your only dropping 5V out of that range. And as far as the needle jumping, again not very precise, and it will probably move even more while its generating. If the voltage does happen to drop more check for a loose neutral wire, that will often cause crazy voltages, but so far I see nothing to worry about.
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SOURCE: Onan generator: Pro 6000e: engine runs, no
Are you getting any kind of voltage output at all?
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