Hi @elliot3627
Here's the [document|42019|tech sheet] for the ice maker that will help.
Go to p.3 to view the procedure to run the diagnostic tests and check if any errors are being displayed.
If a faulty part is the cause of the problem and it needs replacing, there's a parts list on p.4. Search online for the applicable ''part number only'' to find suppliers that suit you best.
If you can't find a particular part online, looking at the parts list from this [https://www.searspartsdirect.com/model/1rinn4uvpg-000593/kitchenaid-kuix505ess2-freestanding-ice-maker-parts|supplier] it seems that some parts are NLA and have been replaced by compatible parts. Search though the list to find the required part and hopefully it may have the updated part number information. Then search online for it instead.