Very likely the problem is a bad ice maker. I do not recommend to fix the existing ice maker because we don't know exactly which parts to replace and very low rate on successful ice maker repairs.
AppliancePartsPros will definitely take back any parts you purchased from the company, but I would recommend to replace the ice maker first. Then check it with the new optics and, then with the old kit. Only when you'll be sure it does work with the old kit, return the new one. You have 365 days for returns.
- The ice maker Part number: AP3182733