Salt Chlorine Generator

I have no power to my generator. No lights, and readings are out. A couple of weeks ago I change the fuse, it worked for a little while. I unplugged and checked the fuse, it was good. When I plugged it back in I heard a load thump. Not sure but it sounds like a solenoid. I will check in the morning to see if the board is over heated, but thinking it is the circuit board.