I researched online and determined (after several ideas to try to fix it) that the ice maker required replacement. I had a most difficult time finding any form of directions or instructions for the removal and replacement of the unit. After speaking with LG, I was finally able to obtain a very poor quality one-page instruction. According to LG the reason there are no videos or instruction sheets out there is because LG would prefer you call an LG repair person.
Be sure you order the correct ice maker. My model and serial numbers indicated that I had a choice of two versions of the ice maker. And of course, this determination could not be made until the unit was removed from the refrigerator. Talk about circuitous!!! Once I had the correct ice maker replacement, it took about 15 minutes to install the unit. Phew! All told, it took several hours from research and run-around to final install.