How to Cap an Icemaker Supply Line


Some people prefer to remove the ice maker in their refrigerator to create more freezer room in the space vacated by the ice making mechanism. This involves disconnecting and shutting off the water supply line and capping the end of the tube to prevent dripping. If the ice maker needs repairs, the same procedure applies for shutting off the supply line. The cap for a supply line typically comes with the ice maker installation kit, but if you no longer have a cap, replacements are available at hardware and home improvement stores.

  • Pull the refrigerator away from the wall and unplug the appliance to prevent electric shock.

  • Twist the valve knob clockwise on the water supply line behind the refrigerator to shut off water flow to the ice maker. The valve knob may also be located under your kitchen sink where the supply line taps into the main plumbing.

  • Unscrew the rotating connector on the end of the supply line where it attaches to the refrigerator and pull off the line.

  • Insert the plastic line cap into the end of the supply line and twist clockwise to install. Even if the supply valve is accidentally turned on, the cap prevents water from spewing all over your kitchen while the line is disconnected from the refrigerator.

Tips & Warnings

  • Regardless of your refrigerator model, the water supply line and cap are standard parts that work with universal replacements.


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