I searched on line for ice maker problems and found a YouTube video on how to test the control unit and that article had a link to AppliancePartsPros.com. I tested he ice maker and found the control unit was bad. I went to AppliancePartsPros.com, put in my refrigerator model number and it took me to the right list that had a great video on how to exactly replace the control module. It took me all of 15 minutes from start to finish. Exactly like the instruction video on AppliancePartsPros.com. Saved me a bundle not having to call a service repair company