Sorry, I am going to be replacing the Emitter/Receiver kit.
When it first quit working the fingers on the ejector were sticking straight up. It had locked up in mid-harvest cycle. I took out the ice maker and cleaned out the ice, took out the Emitter and Receiver and cleaned off the lamp and lens. Put everything back together and it started working. Went well for two cycles then quit again. Now I'm just getting the two flashes repeating and no 120 to the ice maker harness. Going by what I've been able to figure out from your recommendations the first step will be to replace the kit. Can you tell me what shorting M&N does, if anything. I'm making notes in the manual for next time.