Purchased a new icemaker and replaced it in about 20 to 30 minutes. Removed the freezer door and two trays to gain access to the ice maker. Removed one screw, loosened two screws, disconnected the wiring harness, and removed the old icemaker. Installed the new icemaker and replaced the trays and freezer door.
New Icemaker began to fill within about 15 minutes.
The actual hardest part was determining how to remove the top rolling tray.