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How to fix a refrigerator ice maker leak

We'll locate the leak, tighten the supply line or replace the filter, and tell you when to call a plumber.

How-to · Home plumbing
15–30 min
What you'll need
  • Replacement supply line (1/4 inch, ice maker type)
  • Replacement water filter (if needed)
  • Two adjustable wrenches

At a glance

  • Shut off the water supply to the refrigerator before working on the ice maker.
  • Locate the leak—supply line, water filter, ice maker inlet, or inside the freezer.
  • Tighten loose connections a quarter turn; replace a cracked or kinked supply line.
  • Replace the water filter if it is old or the housing leaks; check the filter seal.
  • If the leak is inside the ice maker or the supply valve will not shut off, call a plumber.
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Steps

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

  • Shut off the water at the valve behind or under the refrigerator. Confirm no water flows.
  • Good: No water flows. Proceed to Locate the leak.
  • Bad: Valve will not shut off—call a plumber.

Locate the leak

Goal: Identify where the water is escaping.

Tighten supply

Goal: Stop leaks at the supply line connections.

  • Shut off the water. Use two wrenches to tighten the supply line nuts a quarter turn. Do not overtighten. Turn the water on and make ice.
  • Good: No drips at the connections. Proceed to Verification.
  • Bad: Still leaks—replace the supply line or call a plumber.

Check filter

Goal: Fix leaks at the water filter housing.

  • Turn off the water. Remove the filter and inspect the O-ring. Replace the filter if old or damaged. Reinstall and hand-tighten. Turn the water on and test.
  • Good: No drips at the filter. Proceed to Verification.
  • Bad: Housing is cracked—call a plumber or appliance repair.

When to get help

Call a plumber if:

  • The supply valve will not shut off.
  • The leak is inside the ice maker assembly.
  • You need to replace plumbing behind the fridge.

Do not force fittings—you can damage the pipes. For other fixes, see Fix a refrigerator that leaks water or How to unclog a drain.

Verification

  • No drips at the supply line, filter, or ice maker when making ice.
  • Ice maker produces ice normally.
  • No water pooling in the freezer.

Reviewed by Blackbox Atlas

Frequently asked questions

Why does my ice maker leak?
Common causes: a loose or cracked supply line, a leaking water filter housing, a clogged or frozen fill tube, or a faulty ice maker inlet valve. Water runs to the ice maker through a small line; any break or loose connection can leak.
Can I fix an ice maker leak myself?
Yes. Most ice maker leaks are fixable by tightening the supply line, replacing the line or filter, or thawing a frozen fill tube. Shut off the water first. If the leak is inside the ice maker or the valve will not shut off, call a plumber.
When should I call a plumber for an ice maker leak?
Call a plumber if the supply valve will not shut off, the leak is inside the ice maker assembly, or you need to replace plumbing behind the fridge. Do not force fittings—you can damage the pipes.

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