Why Your Ice Maker Stops Making Ice in Winter

It seems counterintuitive: your ice maker stops making ice during the coldest months of the year. Yet this is one of the most common winter service calls we receive. Here is why it happens and what you can do about it.

The Winter Ice Maker Paradox

Your ice maker needs liquid water to make ice. When temperatures drop, the water supply line can freeze before water reaches the ice maker, causing it to stop producing ice entirely.

Where the Problem Occurs

Water Supply Line Path:

Main water supply (usually basement)

Through walls and floors

Behind the refrigerator

Into the ice maker

Freezing typically occurs where the line passes through:

Exterior walls

Uninsulated spaces

Near cold air drafts

In unheated garages or basements

Signs of a Frozen Water Line

Ice maker stops producing ice

Water dispenser stops working

Refrigerator makes clicking sounds (ice maker trying to cycle)

No sound of water filling the ice maker

Preventing Frozen Lines

Insulation:

Wrap exposed water lines with pipe insulation

Pay special attention to lines in exterior walls

Use heat tape for extremely vulnerable areas

Temperature Management:

Keep the area around the refrigerator above 40°F

Open cabinet doors during extreme cold

Ensure adequate heat reaches the space

During Extreme Cold:

Run the water dispenser briefly several times daily

This keeps water moving and prevents freezing

Empty and refill ice bin to keep cycle active

Thawing a Frozen Line

Safe Methods:

**Patience:**

- Turn up heat in the area

- Wait 6-12 hours

- Often resolves naturally

**Hair Dryer:**

- Use on low heat setting

- Work along the entire line path

- Be patient and thorough

**Warm Towels:**

- Wrap line in warm (not hot) towels

- Replace as they cool

- Safe for plastic lines

What NOT to Do:

Never use an open flame

Do not pour boiling water on lines

Avoid extreme heat that could damage plastic

Do not force water through a frozen line

When to Call a Professional

Contact us if:

The line remains frozen after 24 hours

You cannot locate the frozen section

There are signs of a burst pipe

The ice maker does not work after thawing

Long-Term Solutions

For homes with recurring problems:

Relocate the Water Line:

Route through interior walls only

Avoid exterior wall runs entirely

Install a Water Line Heater:

Thermostatically controlled heat tape

Activates only when needed

Professional installation recommended

Add Insulation:

Improve wall insulation

Seal air leaks

Consider refrigerator location

Checking for Damage

After thawing, inspect for:

Cracks in plastic lines

Loose fittings

Water leaks

Damaged valve connections

Frozen lines can cause micro-cracks that lead to leaks later.

Summary

Winter ice maker failures are frustrating but usually preventable with proper insulation and temperature management. If problems persist, professional evaluation of your water line routing can provide permanent solutions.