If your ice maker isn't making ice or if the ice cubes are small or misshapen, the water fill tubes may be the problem. Check the fill cup and the tube at the back of the ice maker. If they are covered in ice, look for a blockage.
Once the line is disconnected, pour 3-4 cups of vinegar with a small funnel into the line and let it soak for 5-10 minutes, clipping shut the open end of the line to avoid the vinegar from draining out. Rinse out the line with clean water before reconnecting the dispenser and ice maker.
When that sensor is loose, the maker can't determine the correct temperature of the ice and the heater (heater loosens the ice from the mold to dump), so it makes sloppy cubes that come out in a block.
Is the ice maker used regularly? If ice is not used regularly, it could clump and fuse together. This is considered normal. Gently break the clumps up with a plastic utensil.
Clean the Interior of the Ice Machine
Use a soft cloth and some warm soapy water, or two tablespoons of baking soda dissolved into a gallon of warm water. Once you've cleaned the interior surfaces, use a soft, damp cloth to rinse. Lastly, wipe down the interior with a soft, dry towel.
Disconnect the refrigerator once more and turn on the water supply valve to let water out of the cold water pipe. If the water won't come out of the pipe, could be the result of a blockage inside the pipe. If your home has hard water, a calcified lump inside the pipe could be blocking the flow.
Ice makers typically have their own electrically-actuated valves. The system may need to cycle a few times to purge the air. There may also be a manual purge process, depending on the model. See if you can find your owner's manual online by model number.
Ice Maker Auger Motor
If the motor is not operating, then you can check it for continuity with a multimeter. We should check the motor resistance by inserting the probes into the holes marked “L” and “H.” Our multimeter should read around 4400 ohms to 8800 ohms.
There are several reasons your ice maker may suddenly stop working, including a blocked water dispenser, issues with your water supply line or a clogged water filter.
Check the water fill tubes
Check the fill cup and the tube at the back of the ice maker. If they are covered in ice, look for a blockage. If you see an obstruction, check out our guide on how to clean your refrigerator water line for detailed steps. If that doesn't work, consider replacing the water fill tubes.
If you don't hear a chime, but you can see movement from the ice maker, then the ice maker was reset. If you don't hear a chime and there is no movement from the ice maker, unplug the fridge or turn it off at the circuit breaker for 2 minutes. Then, power it back up and try again.
Without proper cleaning, a dirty water filter can clog up with so much debris that water can't get through it. When this happens, your machine can freeze up completely, meaning your ice machine won't be able to produce ice.
Place a bucket under the end of the water supply line. Turn ON the water to the supply line and check the flow. If the water flow seems weak or irregular, the problem is with the water supply. A regular, steady flow could indicate the water valve has become restricted or clogged.
When ice gets caught in the raker bar, it causes it to jam. To correct this issue, you'll need to remove any cubes from the raker bar by hand. If the storage bin appears too full, remove some of the ice to allow the raker bar to move freely.
An easy way to diagnose if the issue is stemming from a buildup of ice is to snake a copper wire through the drains. Using the copper wire, you will feel the buildup of ice in the machine. You can unclog the ice which is causing the leak using the wire.
You Hear a Gurgling Sound When Water is Flowing
The most prominent sign that your pipes are clogged is a reduced flow rate. Whether it is your shower pipe, faucet, or drain if you see that the water does not flow as fast as it should then you're most probably dealing with some sort of blockage in the pipes.
Your freezer temperature could be too high, the water inlet valve may not be functioning correctly, your home water pressure may be low, the refrigerator's water filter may be clogged, or the ice maker may need to be replaced.
If your refrigerator has an ice machine, you should also pour vinegar into the icemaker's dispenser lines. You can continue to pour the vinegar through these lines a few times, then let it sit in these tubes for about 10 to 20 minutes by using your clamps to seal the end so nothing leaks.
Make a cleaning solution with a 10:1 ratio of warm water and one of these ingredients: white vinegar, lemon juice, nickel-free ice machine cleaner, or other cleaning agent recommended by the manufacturer.
When the ice bin is full, the pressure from the weight of the cubes can cause the bottom cubes to fuse and clump. To prevent this from happening, discard the clumped ice and check the bin periodically to ensure the ice is not building up.