Pull the ice bucket out of the ice maker room.

Check for cracks or fractures in the ice bucket and auger assembly.

Check the gasket on the back of the faceplate of the ice bucket and auger assembly. If the gasket's ripped, cracked, rolled or has become too rigid, the bucket won't seal properly, and may ice up. Replace the bucket as needed.

The arrows indicate where to look for the gasket.

Check the sealing rim around the edge of the ice room opening for ice or cracking.