Derek C Tampa , FL March 24, 2018 Appliance: Frigidaire Refrigerator LGHC2342LF3 Frigidaire Refrigerator Lghc2342lf3: Sy ce. How to replace Main Power Control Board (Electronic Control). You must order both the Control-Electrical (part that goes behind the display) and control main power board (part under the left front side under freezer) or it doesn’t work. I only ordered the main power board and it didn’t fix the problem. Once I got the door display part it’s working good as new. It only took me 20 minutes to install both parts! Only bad news is I don’t have an excuse to buy a new fridge! Haha 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes