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Hi I noticed this morning that the water dispenser was not working. It worked fine before. . I also pressed the temperature button and it was reading 13/40. I do not see any frost on the back panel but I didn't take it off .usually that has frost on it when the coils are iced up Last week I had replaced the heater as the defrost was not working and it was then working perfectly 0/36 until now. I checked the defrost and thermastat and all were closed. I checked the thermistor and that was 26k ohm. I had a spare board so I thought it was the board so I replaced that. when I plugged in the unit I would hear the compressor kick in and went to the dispenser and it was 2 set of 00 flashing. at first I thought it was just resetting itself like a modem but it hasnt stopped. I looked on line was said to hold all 4 buttons down for 10 seconds so I did and it beeped and went to alternating 0 side to side. most of the dispenser buttons wont light. Ice ,water etc no green light Is there another board in the dispenser that went bad? Any help greatly appreciated Thanks Wayne