Always unplug the appliance before inspecting it. If the code comes back after these checks, a part has likely failed.
Our techs repair LG refrigerators in San Diego, La Jolla, Del Mar, Solana Beach, Encinitas, Rancho Santa Fe, Carlsbad, Oceanside, Vista, San Marcos, Escondido, Poway, Santee, El Cajon, La Mesa, Spring Valley, Lakeside, Coronado, usually the same day.