Product review (4 stars): The internals of the pump were fine but the magnet impeller shaft was dry which contributed ...
This unit has a faulty water pump that started squealing after two months of use!  I read reviews and looked up you tube videos on how to repair the unit. After a couple videos I decided to open the back of the unit and inspect the pump. The internals of the pump were fine but the magnet impeller shaft was dry which contributed to the squealing noise. There are two small nylon washers, one on each end of the impeller shaft that are easily lost if you are not careful. My impeller has too much room to drift in and out which may have contributed to the squealing. I installed a stainless steel washer inside the motor body that would slide onto the impeller shaft with no interference on the shaft but would fit into the seat in the motor body. The washer diameter was smaller than the diameter of the magnet on the shaft. I lubricated the shaft with food grade silicone (found at Ace Hardware, Lowes or Home Depot in plumbing section where it is used to lubricate water facets). Once shaft was lubricated I reassembled the pump and installed back into the ice machine. The unit runs silently now, except for when the ice drops!!!  So far three weeks of silent running!