The refrigerator door was left ajar for several hours. then the ref cooling system was not functioning right after the incident. although the freezer is still doing its job Im worried if its beyond repair. A NEW HEATING ELEMENT WAS ATTACHED, USING A REPLACEMENT PART PURCHASED FROM LG . IT WAS OKEY FOR A WEEK THEN SAME PROBLEM

When the freezer section gets cold and reaches its required cooling temperature,after that the frost on freezer section starts defrosting and the cooling fan in the freezer section blows this cool air from freezer to fridge.But if the defrost cycle does not start then freezer will block the air passing section from freezer to fridge,so the freezer gets cool but fridge section does not cool. Its the defrost problem.Try manual defrost by unplugging the refrigerator from main power outlet for 4 hours then reconnect it and check,if the same problem is noticed again,.If yes then its defrost board problem.The defrost board located in the back of fridge section.You can get required parts from www.repairclinic.com or from online sears part site.------------- Thank you.