CHECKED MICRO SWITCHES, AND THEY WERE GOOD. CHECKED THERMOSTAT, AND IT WAS GOOD. CHECKED MOTOR AND IT WAS GOOD. CHECKED ICE MOLD HEATER, AND FOUND IT TO BE OPEN. THE HEATER IS STAKED TO THE BOTTOM OF THE ICE MOLD. AT THIS POINT I DECIDED THAT IT WAS NOT WORTH MESSING WITH AS I FOUND ONE OF THE PHILLIPS HEAD SCREWS HOLDING THE HEATER TO THE ICE MOLD WAS BADLY CORRODED, AND WAS IMPOSSIBLE TO REMOVE. I WOULD HAVE HAD TO TRY AND DRILL OUT THE SCREW & CHASE THE THREADS. I GAVE UP AND BOUGHT A NEW ICE MAKER.