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If you turn the icemaker off for 15 seconds and push the paddle in 3 times within 10 seconds and the icemaker doesn't cycle, it means that your icemaker itself is bad. I'm not sure how the icemaker would have gone bad, but if the icemaker won't cycle when going through that sequence, your icemaker is just faulty.
Now just in case the diagnostics isn't working properly, you could disconnect the water line that comes from the icemaker and goes down to the water valve. Disconnect the water line down at the valve and blow through it to make sure it's clear and not frozen stopping water from getting to the icemaker. If it's clear, then definitely just replace the icemaker. Below is a link to the part.
CLICK HERE for icemaker
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