15kw Gen Sensor is a possibility if there is one or a fuse that I have missed. I checked everything with my IR temp gun and everything was fine at time of issue. Also started it after shutdown although took time to check oil, water & temp first. Oil and fuel filters had been changed recently (10hrs maybe). Vac gauge was fine. Impeller 50 hrs and plenty of water. Eng & gen run off of same fuel tank. No steam out the exhaust. At this point there is nothing I can do until I have several hours to run it.