Question about Scotsman Ice Maker 600LB CM3 30inW Commercial Cubed Machine

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My Scotsman CM3 ice machine will not make ice. The "bin full" light stays on conatantly. I have held down the off button and ran through all the cycles and then hit freeze. It seems to want to then make ice but the comressor only stays on for several seconds and then everything shuts down. I have cleaned what I believe the sensors for the bin full function to work, I have unplugged it for days and same problem. I am lost, can some one help. The Make is CM3 Controller is a CM3 Universal Contoller , model # is CME256AS -1H

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  • jeff bennett
    jeff bennett Apr 20, 2012

    The machine thinks it is full of ice.Look inside of bin if you see a white square plastic piece with a long tube inside of it that is a thermocouple that tells it its full.If you have that unplug it from pin 7 on controller it should work.If you dont have that you will have to replace the two ice sensing eyes. if you have the plug on 7 the ice will still stop when bin fills because the ice sensors will be blocked bin will just have a little more ice in it than normal.

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There is a bar on some units that will move when bin is full. This lever can get stuck and the circuits can go bad
Some units have a sensor that tells when the bin is full and that sensor or circuit itself can go bad.

Posted on Aug 02, 2009

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