I had several problems with a Northern Lights
9kW generator on a Moorings 4800 catamaran
a few weeks ago. Initially, the generator would just stop after 40s of operation. I thought it was a bad sender on the three circuits that product the generator (water temp, oil
temp), but it turned out to be a broken orange wire on the regulator
One the reg board was replaced, the generator started putting out 66V after about 20 minutes of operation. This required another service
trip, and the problem was the regulator board, again. The second regulator board solved
The generator was a 120V model, and the voltage was 66V on each leg.
"Navigare necesse est."