Some LG refrigerator models are equipped with water dispensers in the door and lights in the freezer compartment. If your refrigerator is equipped with the optional water dispenser and it does not dispense water, perform troubleshooting to pinpoint the problem and make needed repairs. If the light in the freezer does not work, try a few simple solutions to fix it.
Turn the knob on the end of the water filter cartridge counterclockwise until it clicks. Slide the old cartridge out and insert a new one. Turn the knob clockwise to position the handle horizontally. A clogged or old filter stops the flow of water to the dispenser.
Open the water valves on the supply line by turning them counterclockwise.
Close the freezer and refrigerator door. The water dispenser will not work if either door is open.
Contact a service technician if the dispenser still does not work.
Plug the refrigerator power cord into the electrical socket fully if the refrigerator is unplugged.
Unplug the refrigerator and turn the bulb counterclockwise to remove it if the light still does not work. Insert the bulb back in the socket and turn it clockwise to tighten it. Plug the refrigerator in and reset the controls.
If the light still doesn't work, turn the control to the "Off" position and unplug the refrigerator. Remove the bulb and purchase an appliance bulb with the correct wattage. Insert the new bulb and turn it clockwise to tighten it. Plug the refrigerator in and turn the control away from the "Off" position.