Aaron L Smithville , TN October 21, 2017 Appliance: Frigidaire Refrigerator LGUS2642LF1 Frigidaire Refrigerator Lgus2642lf1: Temperature on the digital readout did not match the thermister ohm reading or temperature on the fridge it read the right temp in the freezer section replaced main control board fixed problem. How to replace Switch Board. Replaced main control board. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes