ok that narrows it down, on the front of the ice maker there is a plastic cover this pops off its just snapped on, take a small screw driver and pry it off, you will then see this.
check the center of the gear and see if one of the tabs holding the gear is broken or missing, let me know thanks , Bryan
yes that's right! the ice holder is on the door!
check and make sure the black tube running down from the sealing to feed the water isnt frozen, is the ice maker turning now?