The auger is usually made of chrome plated steel. Unfortunately, after many years of use the chrome plating of the auger tends to wear off. When this happens, the steel under the coating is exposed to the wet conditions in the ice cube, causing the part to erode. The first sign of a corroded engine is rust on the ice.
The only way to fix the problem is to replace the damaged auger motor. If you need help with home ice maker repair, call us right now!