GENERAC 6500 won't start
Over the winter I exercised our Generac 6500 gas generator religiously every two weeks through the winter. I would run it at least 90 minutes each time, and had it power a couple of electric baseboard heaters, a few appliances and some lighting...........just to put a load on it. It performed flawlessly.
I will add here, the gas tank for the motorhome was full, full, full, and by springtime, still showed full.
One time during the winter, it started as normal, and within a minute of running, it went to a very high engine speed.......higher than I had ever heard. Within 30 seconds, it did NOT correct itself, and I manually shut down the genny. Now it won't run, but it will attempt to start itself as it turns over a couple of times, then flashes the lamp on the start rocker switch 7 times, which is the fault code for "UNDERSPEED" according to the manual.
Ken and Terry
2010 Georgetown 330TS being pushed by our
2017 GMC Terrain toad (4 wheels down)