Is there ice stuck on the cutting grid?
Check to see if there is ice between the evaporator plate and the cutting grid. If there is, it could cause a sound. If the problem persists, run a cleaning cycle.
Is the ice maker level?
It is important for the ice maker to be level in order to work properly. Depending upon where you install the ice maker, you may need to make several adjustments to level it. You may also use the leveling legs to lower the height of the ice maker for under counter installations.
CLICK HERE for more information on how to level the Ice Maker