Disconnecting the old water hose from the back of the refrigerator and the wall water supply and installing the new water hose are the two steps in replacing a Frigidaire water hose. While copper and plastic hoses are available from home-improvement retailers, a copper line lasts longer.
Turn off the valve that controls the water supply for the refrigerator by turning it clockwise until it stops. Unplug the refrigerator from the electrical socket, and slide it away from the wall. Move the unit carefully to avoid damaging the floor.
Use an adjustable wrench to loosen and take off the compression nuts on the water connection on the refrigerator and on the wall supply valve. Discard the old water line. Slide a compression nut and a ferrule on the end of the new line. Fasten the compression nut to the valve by the wall supply, tightening it by hand and then using an adjustable wrench for a 1/4 turn. Follow the same process for the refrigerator connection. Turn the water supply valve counterclockwise to turn the water back on, and watch the line for leaks. Tighten the compression nuts as needed. Plug the refrigerator's electrical cord back into the outlet, and slide the refrigerator into place.