Product review (5 stars): Repair guy wanted to replace the entire Freon system, freezer fans and shroud.
My LG wasn't cooling the fridge after the fan in the freezer died.  The freezer was cold, but not as cold as it should have been and the fridge compartment was warm.  The console would sometimes show "FF" for the freezer fan, but other times just error or nothing at all.  The repair guy wanted to replace the entire Freon system, freezer fans and shroud (very expensive..  buy a new fridge expensive).  Some youtube video said a repair guy should "test the inductance of the fans" so I looked up how to do that.  Found the bad fan.  It was part EAU60694510, but I couldn't find that item on Prime, but I found this one that was really close with a different plug.  Swapped the plug off my old fan and whammo!  Cold milk!