Scotsman ice maker thinks its full!? - Scotsman Ice Maker CM3 30inW Cubed Ice Machine 900LB

These units have a real problem with the bin controls. I can't begin to tell you how bad. There are two - for lack of a better term - paddles - that are basically just pushed into the left and right side of the drop area that have small lenses in them with a low level beam that when broken indicates a full bin. You have to reach in from under the bin opening and feel to the left and right, pull the paddles toward the middle and there should be enough slack on the wires to get a good hold of them and clean the lenses with a Q-tip soaked in grapefruit juice. Pop them back in and try them - if that doesn't work (and sorry but most of the time it doesn't) then they will have to be replaced.