hi the freezer compartment failed but fridge side is ok so i switched it off for48 hrs to defrost . . . .then put it back on and have had it running for the past 3days whith nothing in it .the fridge is running between 4 deg and 8 deg which i think is ok maybe not ❓ .the frezer hasent droped below -2 deg, also on the front of display the light for the fillter is on . any help would be gratefull