Kitchenaid ice maker not working

Brand:Kitchenaid
Model Number:KRSC503Ess00
Main Symptom:new ice maker not working
What happens & when:I just installed a new part number AP6026347 (W10873791) ice maker and it does not fill and make ice. The arm does not move up or down. It is fixed in place. This is the second one I have replaced and both were the same, arm doesn’t move but the other one worked for at least a year before it stopped.

Error Code (if any):
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