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The only thing that would cause the ice to continue making ice when it should shut off is the bin thermistor if it has failed. If you look inside the ice bin area, on the left side there is a white tube looking sensor mounted about half way up the wall. This is your bin thermistor and you'll need to replace it. Below is a link to the part you'd need to order for your model.
CLICK HERE for bin thermistor
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