Based on reading other comments it looked like my problem was with a failed optics board. I called their toll free number and spoke with a technician. He confirmed one or both of the 2 optic boards weren’t working properly. I ordered the new part and the technician said I should receive it in about 5 days. I received it the next day and was able to swap out the boards in about 10 minutes. The ice maker is working as it should now! Highly recommend this company and their parts.