I have updated your topic to include the correct model number, thanks!
You could pull the refrigerator out. Unplug it and then remove the water line from the water inlet valve that goes to the ice maker. Then try to blow air through it.
If you can blow air through it then you know the line is not frozen shut. If you are sure the water line to the ice maker is not frozen shut and you can hear the water valve click on when guess the water valve needs to be replaced.
If you have a volt meter and know how to use it you could see if you are getting voltage to the water valve. If you are getting voltage and the water line to the ice maker is not blocked then I would replace the water valve.
Your model refrigerator uses water valve part # 67006322