ITS NOT A GOOD IDEA TO USE THE COLDEST SETTING CUZ WHAT U WILL GET IS EXACTLY THE OPPOSITE A MORE WARM SETTING. A HIGH SETTING CAUSES THE COMPRESSOR TO OVER WORK IT SELF CREATING TO MUCH COLD IN ONE SECTION TO THE NEGLECT OF THE OTHER SECTION. UR PROBLEM IS NORMALLY THE OTHER WAY AROUND TO MUCH FREEZER AND NOT COLD IN FRIDGE.? BUT i WOULD CHECK THE THERMISTORS IN THE FREEZER. AND ALSO TRY ADJUSTING UR SETTINGS TO MED AND CHECK UR AIR FLOW CONTROL VENT AKA COLD CONTROL THERMOSTAT.