Ice maker not working
Whirlpool Model WRX988SIBM00 refrigerator ice maker not filling nor dispensing ice. Water dispenses just fine. Have checked water pressure, have replaced water inlet valve to ice maker. Temperature appears fine as we have unplugged refrigerator to reset and are sometimes met with once cycle of ice cubes. Ice cubes will mysteriously appear once or twice every couple of weeks. Suspect it might be the infrared emitter board or the receiver board, but have no idea how to test them and unwilling to willy-nilly replace them for $400+ (emitter board around $80 and receiver board $300+) . Does anyone have any idea how to narrow this down and/or test the emitter and receiver boards. Many thanks in advance.