Whirlpool Refrigerator Side By Side Ice Maker Troubleshooting

Finding your glass hitting the dispenser lever only to hear a hollow click instead of the rattle of ice is a major DIY letdown. You rely on that Whirlpool side-by-side to keep the drinks cold, especially after a long afternoon in the workshop.

I understand the frustration of a stalled appliance, but the good news is that these systems are surprisingly logical once you break them down. Most homeowners can handle whirlpool refrigerator side by side ice maker troubleshooting without calling an expensive technician.

This guide will walk you through the diagnostic process from the simplest fixes to the more technical mechanical tests. We will look at water flow, temperature requirements, and those tricky infrared sensors that often cause these units to go dormant.

Before you start tearing into the back panel, we need to cover the basics of how these machines operate. A Whirlpool ice maker relies on a specific sequence: the water valve opens, the mold fills, the water freezes, a heater loosens the cubes, and ejector arms sweep them into the bin.

If any part of this cycle breaks, the whole process grinds to a halt. We want to identify exactly where that chain is broken so you aren’t wasting money on parts you don’t actually need for your repair.

Keep your multimeter and a basic nut driver set handy as we dive into the details. Safety is our first priority, so ensure you can easily reach the power cord or the circuit breaker before you begin any hands-on work.

Whirlpool refrigerator side by side ice maker troubleshooting: The First Steps

The very first thing you should check is the simplest: the shut-off arm or the power switch. On many Whirlpool side-by-side models, there is a wire arm that signals the machine to stop when the bin is full.

Sometimes, a stray ice cube gets lodged under this arm, keeping it in the “up” or “off” position. Reach into the bin and ensure the arm can move freely down to the “on” position to allow the harvest cycle to continue.

If your model uses a sliding power switch on the ice maker itself, toggle it off and back on. This simple power cycle can sometimes reset the internal logic board and get the motor turning again without further effort.

Checking the Freezer Temperature

Many DIYers overlook the fact that an ice maker will not harvest if the temperature is too high. The internal thermostat in the ice maker mold usually needs to reach about 15°F (-9°C) before it triggers the heater and ejector.

If your freezer is set to 15°F or 20°F, the ice might freeze, but the machine won’t know it is ready to dump. Set your freezer to 0°F (-18°C) to ensure the mold reaches the required temperature quickly and consistently.

Use a standalone appliance thermometer to verify the actual temperature inside. If the freezer is struggling to stay cold, you might have a dirty condenser coil or an evaporator fan issue rather than an ice maker problem.

Inspecting the Water Filter

A clogged water filter is one of the most common culprits in whirlpool refrigerator side by side ice maker troubleshooting. Over time, sediment and minerals restrict the flow of water to the door and the ice tray.

If you haven’t changed your filter in more than six months, it may be time for a fresh one. A restricted filter causes low water pressure, which prevents the inlet valve from opening fully or results in “hollow” ice cubes.

Try removing the filter and installing the “bypass plug” that came with your refrigerator. If the ice maker starts filling correctly with the bypass in place, you know for certain that a clogged filter was the bottleneck.

Testing the Infrared Optical Sensors

Whirlpool side-by-side refrigerators often use an Infrared (IR) sensor system to detect the ice level. There is an emitter on one side of the freezer and a receiver on the other; if the beam is blocked, the ice maker stops.

Open the freezer door and look for a small red light on the right-side wall. If the light is blinking in a specific pattern, it is telling you there is a communication error between the two sensors.

Check the “emitter flap” on the left side of the freezer. This spring-loaded flap must be pushed back for the beam to reach the receiver; if it is stuck or broken, the system thinks the bin is overflowing.

How to Bypass the Door Switch

To see if the sensors are working, you often need to fool the fridge into thinking the door is closed. Locate the door switch (the button the door hits when it shuts) and tape it down manually.

With the switch taped, watch the status light on the receiver board. If the light stays solid when the flap is cleared, the sensors are likely fine, and the problem lies elsewhere in the mechanical assembly.

If the light continues to blink rapidly even when the path is clear, one of the control boards for the optics has likely failed. Replacing these boards is a common fix for Whirlpool models that simply refuse to cycle.

Inspecting the Water Inlet Valve and Fill Tube

If the ice maker goes through the motions of a harvest cycle but the tray remains dry, you have a water delivery issue. This usually points to either the water inlet valve or a frozen fill tube.

The fill tube is the small plastic spout that delivers water into the back of the ice maker. It is common for water to drip and freeze inside this tube, creating a solid ice plug that prevents new water from entering.

Use a hair dryer on a low, warm setting to gently blow air into the fill tube. Be careful not to melt the plastic components; your goal is simply to melt the ice blockage so the water can flow freely again.

Testing the Inlet Valve Solenoid

The water inlet valve is an electromechanical device located at the bottom back of the refrigerator. It uses a solenoid to open the valve when it receives a signal from the ice maker’s control head.

You can test the solenoid for continuity using a multimeter. Set your meter to the Ohms (Ω) setting and touch the probes to the terminals on the valve; a reading of “infinite” or “OL” means the coil is dead.

Also, ensure the valve is receiving 120 volts of power during the fill portion of the cycle. If the valve has power but won’t let water through, the internal diaphragm is stuck and the entire valve assembly needs replacement.

Checking House Water Pressure

Don’t forget to check the source of the water. If the saddle valve under your sink or in the basement is partially clogged with lime scale, the pressure will be too low for the fridge valve to operate.

Disconnect the water line from the back of the refrigerator and hold it over a bucket. Turn on the water supply briefly to ensure a strong, steady stream of water is reaching the appliance.

If the flow is weak, the issue is with your home’s plumbing rather than the refrigerator. Replacing an old saddle valve with a dedicated quarter-turn ball valve is a great weekend project for any DIYer.

Manual Cycling for Advanced Troubleshooting

Sometimes you need to force the machine to move to see where it fails. In whirlpool refrigerator side by side ice maker troubleshooting, you can often “jump” the motor to start a manual harvest cycle.

Remove the front plastic cover of the ice maker head to reveal the test ports. These are usually labeled with letters like “L”, “N”, “T”, and “H” for Line, Neutral, Thermostat, and Heater.

Using a short piece of 14-gauge insulated wire with the ends stripped, you can jump the “T” and “H” ports. This bypasses the thermostat and tells the motor to begin a revolution immediately.

Watching the Harvest Cycle

Once you jump the ports, the large gear should begin to turn. If the motor hums but the gear doesn’t move, the internal plastic gears are likely stripped, and the ice maker unit must be replaced.

As the gear turns, the heater under the mold should get warm. This heat allows the ice to slide out easily; if the heater stays cold, the cubes will stay stuck, and the ejector arms will eventually stall out.

Near the end of the cycle, you should hear the “click” of the water valve and see water flowing into the tray. If the cycle completes but no water appears, you have confirmed the issue is in the fill circuit.

Common Mechanical Failures in Whirlpool Units

Whirlpool ice makers are workhorses, but they do have a few mechanical weak points. The ejector arms are the plastic fingers that push the ice out, and they can sometimes become brittle and snap.

If you see broken plastic pieces in your ice bin, that is a dead giveaway. You can sometimes replace just the arms, but usually, it is more cost-effective to replace the entire modular ice maker assembly.

Another issue is the coating on the ice mold itself. Over years of use, the Teflon-style coating can flake off, causing the ice cubes to stick to the metal like a tongue to a frozen flagpole.

The Importance of the Mold Heater

The mold heater is a small element tucked underneath the tray. It only turns on for a minute or two during the harvest to slightly melt the outer edge of the cubes so they can be swept away.

If this heater fails, the ejector motor will try to push against solid ice. This puts immense strain on the motor and can lead to a “burnt” smell or a completely seized ice maker head.

Testing the heater involves checking for resistance with your multimeter. If the heater shows zero resistance (open circuit), it is time to swap out the unit for a new one from the parts warehouse.

Frequently Asked Questions About Whirlpool Refrigerator Side by Side Ice Maker Troubleshooting

Why is my Whirlpool ice maker making very small or hollow cubes?

Small or hollow cubes usually indicate low water pressure. This can be caused by a partially clogged water filter, a failing water inlet valve, or a house supply valve that isn’t fully open.

How do I reset my Whirlpool side-by-side ice maker?

You can often reset the unit by turning the power switch off for 30 seconds or by manually cycling the shut-off arm up and down three times. For a hard reset, unplug the refrigerator for ten minutes.

What does it mean if the red light is blinking on my ice maker sensor?

A blinking red light on the optical sensor indicates that the beam is blocked or the sensors are misaligned. If the bin is empty and the flap is clear, the sensor boards likely need to be replaced.

Can I clean my ice maker instead of replacing it?

Yes, if the issue is mineral buildup, you can clean the mold with a mixture of vinegar and water. However, if the mechanical gears or the heater have failed, cleaning will not solve the problem.

How long should it take for a Whirlpool ice maker to make a batch of ice?

In a properly cooled freezer (0°F), a Whirlpool ice maker should produce a new batch of cubes every 90 to 120 minutes. If it takes longer, check your freezer temperature settings.

Final Thoughts on Fixing Your Ice Maker

Taking on whirlpool refrigerator side by side ice maker troubleshooting is a rewarding DIY task that saves you the $150 service call fee. Most of the time, the fix is as simple as thawing a tube or replacing a $30 valve.

Remember to work methodically: start with the easiest checks like the power switch and water filter before moving on to electrical testing. Keeping your freezer at the right temperature is half the battle in appliance maintenance.

If you find that the motor is seized or the mold coating is peeling, don’t be afraid to replace the whole unit. Most Whirlpool ice makers are held in by just two or three screws and a simple wiring harness plug.

Once you have that ice clinking in your glass again, you can get back to the real work in the garage. Stay safe, keep your tools sharp, and enjoy the satisfaction of a job well done on your own home equipment.

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Jim Boslice

Jim Boslice is a power tool enthusiast who tests, reviews, and shares practical guides to help DIYers and professionals choose the right tools for every project.

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