Ice maker not working

Brand: Whirlpool
Model Number: WRX735SDBM02
Main Symptom: Not Filling with water
What happens & when: Unit quit making ice. Fill area was frozen over. Removed and thawed it out. After I re-installed I don’t hear it coming on to fill with water. I have removed and thawed multiple times. Never had this issue

Error Code (if any):
Parts or tests already tried:
Photos / video link:

Try this, pour a little water directly into the icemaker and see if it freezes and ejects the ice. If it does, the icemaker is good, if not, the fill tube may be frozen up and not letting water into the icemaker. When it goes into a harvest mode, at some point you can hear a slight hum, that is the inlet valve being energized. If it does not hum, the inlet valve may need to be replaced.