SOURCE: 20KW Guardian Generac does not produce 12 volts to run engine
The problem is that the printed circuit board inside the generator draws a little current from the battery even when the generator is not running. Over the course of a few days this can make the battery weak enough to be unable to get recharged by the built in running charger which results in not enough power to run the electronic governor on the generator. Usually the spark plugs will work even with a fairly low battery.
Most of the Generac generators come with a built in trickle charger that runs off of the transfer switch load terminals. If your built in charger isn't doing the job it's either broken or you have the wrong sort of battery installed in the generator.
Regards,
Carl
SOURCE: 10kw Generac shut down overspeed
Make sure that the throttle linkage is all there and not damaged/misadjusted, then get a manometer and check your inlet gas pressure. Gas pressure should be 8 inches of water column and stay there running or not.
Carl
SOURCE: 10kw Generac Guardian not cranking, shows rpm sense loss
Sounds like Generator mode switch should be "ON".
SOURCE: I have a new Generac 20KW Propane generator with a
Sounds like the electritian wired something wrong. Control wiring for that generator should be:
N1 and N2 = 240 vac utility input
Wire 0 = ground
Wire 194 (15B) = + battery
wire 23 = transfer signal
SOURCE: New Generac Generator--Battery Goes Dead
Yes,if its working correctly,you should be getting a reading about 2.5 to 3 volts above the battery voltage rating while its in standby mode.
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