Have an LG LMXS27626S. The freezer would get cold, but the fridge would not go below 50 degrees F, regardless of the setting. No noisy compressor, clean coils, all fans working and NO fault codes. The problem is a tiny, motorized door in the inside of the refrigerator, behind the rear panel. The tiny flap breaks and it will NOT set a fault code. I took it out and threw it away and the fridge stays at 34 degrees F all the time now...