Search guides

How to fix a refrigerator water leak

We'll locate the leak, tighten or replace the water line, fix the filter housing, or clear the defrost drain.

How-to · Home plumbing
30–60 min
What you'll need
  • Replacement water filter (if needed)
  • Replacement water line (if cracked)
  • Towels, bucket
  • Channel-lock pliers
Step 1 of 5

Quick triage — pick your path

Get started

Choose the option that matches what you see. You can jump straight to that section.

Show full guide

Steps

Goal: Shut off water, locate the leak, fix the water line or filter, and know when to call a plumber.

  • Turn off the water supply valve that feeds the refrigerator. Pull the refrigerator out to access the connection. Relieve pressure by dispensing water until it stops.
  • Good: No water flow when you dispense. Proceed to Locate the leak.
  • Bad: Water still flows—find the correct shutoff valve.

Locate the leak

Goal: Identify where the water is escaping.

  • Dry the area under and behind the refrigerator. Turn the water back on and dispense water or run the ice maker.
  • Watch where water appears—at the water line connection, at the filter housing, in the freezer or fridge (defrost drain), or in the drain pan under the fridge.
  • Good: You see water emerge from one or more spots. Proceed to Fix water line, Replace filter, or Clear defrost drain based on location.
  • Bad: Cannot locate the leak—call a plumber.

Fix water line

Goal: Stop leaks at the water line connection.

  • Shut off the water. Check that the line is fully inserted and the compression nut is snug. Tighten the nut a quarter turn—do not overtighten.
  • If the line is cracked or the fitting is corroded, replace the water line. Turn the water on and dispense.
  • Good: No drips at the connection when you dispense.
  • Bad: Still leaks—call a plumber.

Replace filter

Goal: Stop leaks at the filter housing.

  • Shut off the water. Remove the filter and inspect the O-ring in the housing. Replace the filter with a new one.
  • If the housing is cracked, it must be replaced—call a plumber or appliance technician. Reinstall the filter and turn the water on.
  • Good: No drips at the filter housing when you dispense.
  • Bad: Still leaks—call a plumber.

Clear defrost drain

Goal: Clear a clogged defrost drain so water drains to the pan.

  • Locate the drain hole in the freezer (usually at the back). Pour warm water down the drain to melt ice, or use a turkey baster to flush it.
  • Check that water flows into the drain pan. Confirm the fridge is level—a tilted fridge can cause drainage issues.
  • Good: Water drains without pooling in the freezer.
  • Bad: Still clogged—call a plumber or appliance technician.

When to get help

Call a plumber or appliance technician if:

  • The water line is behind the wall and you cannot access it.
  • The leak is inside the refrigerator cabinet.
  • You cannot clear the defrost drain.
  • The filter housing is cracked.

Do not run the refrigerator with a visible leak—water can damage floors.

Verification

  • No drips at the water line or filter housing when you dispense water or make ice.
  • No water pooling in the freezer or fridge.
  • The drain pan does not overflow.

Where is the leak?

Dry the area, turn on water, dispense. Watch for water at the line, filter housing, freezer, or drain pan.

Shut off water. Dry the area. Turn water on and dispense. Good: you see water at the line, filter housing, freezer, or drain pan. Bad: cannot locate—call a plumber.

Water line Filter or defrost

You can change your answer later.

Tighten or replace water line

Tighten the water line connection or replace if cracked. Turn water on and dispense. Good: no leak. Bad: still leaks—call a plumber.

Done

Is water pooling in freezer or fridge?

If pooling, defrost drain is clogged. If at filter, replace filter and check O-ring.

Check if leak is at filter housing or in freezer/fridge. Filter: replace filter, check O-ring. Freezer/fridge: clear defrost drain. Good: no leak. Bad: still leaks—call a plumber.

Freezer/fridge Filter housing

You can change your answer later.

Clear defrost drain

Flush the defrost drain with warm water. Check that water flows to the drain pan. Good: no pooling. Bad: still clogged—call a plumber.

Done

Replace filter and test

Replace the water filter. Check the O-ring. Turn water on. Good: no leak. Bad: still leaks—call a plumber.

Done

Reviewed by Blackbox Atlas

Frequently asked questions

Why does my refrigerator leak water?
Common causes: a loose or cracked water line connection, a worn filter housing O-ring, a clogged defrost drain, or an overflowing drain pan. The water line feeds the dispenser and ice maker; a loose connection or cracked line causes leaks.
Can I fix a refrigerator water leak myself?
Yes. Most leaks at the water line connection or filter housing are fixable by tightening or replacing the line and replacing the filter. Clearing the defrost drain can fix pooling in the freezer. Shut off the water first.
When should I call a plumber for a refrigerator water leak?
Call a plumber or appliance technician if the water line is behind the wall and you cannot access it, the leak is inside the refrigerator cabinet, or the defrost drain is blocked and you cannot clear it.

Rate this guide

Was this helpful?

Continue to