Replaced the inlet valve located at the bottom of the back side of the unit on the right side (looking at the back of the fridge). A few screws (12) to remove the cardboard cover and metal grate over the fan, two screws to remove the valve, removed three hoses/three wires and replaced these on the new valve. Left back uncovered for 15 minutes to assure no leakage. Replaced cardboard and metal vent covers. Job done. @$65 for the part with shipping.