How to Repair a Leaking Refrigerator Water Line

Puddles appearing beneath your refrigerator are rarely a mystery; they almost always point to a compromised water supply line. Whether a plastic tube has rubbed against a sharp metal edge or a connector has finally surrendered to age, these leaks require immediate attention to prevent floor damage and mold growth. Done well, this repair restores reliable ice and water service while ensuring the connection is tighter than the original factory install. Most leaks occur near the point of entry behind the unit, where the line is prone to kinking or crimping. You do not need to replace the entire length of the tubing unless it is brittle or cracked in multiple places. A simple patch using high-quality push-to-connect fittings creates a permanent, leak-proof seal without the need for specialized crimping tools or sweating copper.

  1. Stop the water flow first. Locate the shut-off valve behind the refrigerator or under the nearby kitchen sink. Turn it clockwise until it stops to cut off flow to the unit.
  2. Find the exact leak location. Gently pull the refrigerator away from the wall to gain access to the tubing. Inspect the length of the plastic line for signs of wear, pinhole leaks, or sharp kinks.
  3. Excise the damaged section cleanly. Identify the exact location of the leak and mark it. Using a sharp utility knife or specialized tubing cutter, make a clean, square cut on either side of the damaged area to remove the affected segment.
  4. Smooth the cut edges meticulously. Deburr the edges of the cut tubing using a fine-grit sandpaper or a de-burring tool. Wipe away any plastic shavings or dust so the tubing is perfectly smooth.
  5. Seat the connector firmly. Insert one end of the cut tubing into your push-to-connect union fitting until you feel it hit the internal stop. Repeat the process with the other end, ensuring both sides are fully seated.
  6. Confirm the repair holds solid. Slowly open the water supply valve and watch the repair point for any signs of moisture. Keep the area exposed for one hour to confirm the seal is solid before pushing the unit back into place.