So after a couple of years of use and no problems with the generator I discovered this yesterday. The wires going to the coolant level sensor have been cut and taped off and hidden in the wire loom. Coolant level is good so I assume the previous owner had a problem with the switch and this was his idea of problem solved. There are only two wires going to the sensor and they currently read open with an ohmmeter. Before I drain the coolant down lower than the switch, does anyone know the proper operation of this sensor and what the part number is for replacement? thanks in advance.