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Reasons Why Your Refrigerator Wont Stop Making Ice

Ice maker

If your icemaker won’t stop making ice, there could be a few different things causing the issue. The most common components to malfunction include; a stuck ice maker arm or a faulty thermostat.

Let’s explore the most common reasons and how to fix them.


Faulty ice maker switch

The switch that controls your ice maker may be stuck in the ‘on’ position, causing it to make ice continuously. Try toggling the switch off and on to see if that solves the problem. 

This is often the problem in most cases, so it’s worth checking if this isn’t the case first, as it’s the quickest and easiest solution. 

Malfunctioning ice level sensor

The ice level sensor in your ice maker may be malfunctioning, causing it not to detect when the ice bin is full. This can cause the ice maker to continue making ice even when it’s not needed. 

Check the sensor to see if it’s dirty or damaged. If it appears to be clean, it may need to be replaced.

Damaged or stuck shut-off arm

The shut-off arm in your ice maker may be damaged or stuck in the ‘up’ position, which tells the ice maker to continue making ice. 

Check the arm to see if it’s in the correct position and not obstructed in any way.

Defective water inlet valve

The water inlet valve in your ice maker may be defective, causing it to continuously send water to the ice maker even when it’s not needed. 

This can cause the ice maker to keep making ice. Check the valve to see if it’s working correctly.

Dirty or clogged water filter

If your ice maker has a water filter, it may be dirty or clogged. A dirty filter can significantly restrict water flow to the ice maker, causing it to make ice continuously. 

Check the water filter for any debris and clean it. If it appears clean and you’re sure it’s the issue, it may need to be replaced.

How Does an Ice Maker Work?

An icemaker consists of a few different components, including a water supply valve, a thermostat, a timer, and a motor. When the thermostat senses that the temperature in the freezer has reached a certain level, it sends a signal to the motor to activate.

The motor then rotates a gear, which turns a cam. As the cam turns, it lifts the icemaker’s arm, allowing water to flow from the water supply valve into the icemaker’s mold.

Once the mould is filled, the thermostat signals the motor to stop, and the water freezes into ice cubes. Finally, the icemaker’s arm lowers, which triggers a switch that tells the motor to start the process all over again.


Fixing an icemaker that won’t stop making ice can seem daunting, but with some know-how, it’s actually quite manageable. Following the steps outlined in this guide, you should be able to identify and fix the problem.

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