Bottom of thermometer on control is flashing red and both fridge & freezer compartment control flashing green along with the remaining part of thermometer on control. Three times a beeping has gone for several minutes and quit. Have unplugged and replugged in the unit. Red thermometer at bottom remains flashing. Any idea what we should try next. Fridge temp. is currently 10 degrees while the freezer appears to be working appropriately. Appreciate any suggestions you can offer.