A good test will be to manually advance this icemaker into a cycle. To cycle this icemaker, pull the front cover off and you will see some gears. Turn the small gear ccw until the icemaker starts running (see attached picture). Watch it cycle now and toward the end of the cycle, watch to see, if it fills with water. If it cycles and fills but does not harvest the ice and the temperature is ok (between 0 – 5 degrees), the icemaker will need to be replaced. If it cycles but does not fill, listen for a humming sound. If you do hear this sound, it indicates the inlet water valve is getting energized but is not allowing water through. In his case, check to make sure the water supply to the refrigerator is ok. If it is, then the water valve # 241803701 will need to be replaced. I hope this will help you.