Moe H St Louis , MO June 07, 2016 Appliance: LG Refrigerator LFC23760SW Lg Refrigerator Lfc23760sw / Aswclga: My refrigerator stop working because of the main electronic control board. How to replace Main Electronic Control Board. I replaced the Main Electronic Control Board and it took about 15 minutes to do it. As soon as I installed the new board, it started working right away. Everything is perfect now and I'm glad I choose Appliance Parts Pros to contact for my replacement part. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes