Abstract: An ice cube making machine includes agitator paddles which oscillate or reciprocate in a horizontal path between freezing elements to agitate the water to provide clear ice cubes. An ice cube thickness sensor is carried by the agitating paddle assembly and moves in a path toward and away from the cube. When the desired ice cube thickness has been attained, the sensor actuates circuitry to interrupt the freezing cycle and initiate the harvest cycle. Control of the various functions of the machine is afforded by a compact control module which contains proximity switches located adjacent exterior faces of the module and eliminates the need for limit switches. Feelers or links containing switch actuating magnets swing past the proximity switches to initiate or trigger or discontinue the various cycles.