An ice maker is a small appliance that fits in the freezer compartment of a refrigerator. It is fed by a small tube that runs up the back of the refrigerator to an inlet valve. When the refrigerator senses that more ice cubes need to be made, the inlet valve opens and lets water flow into a special ice cube mold. To get the ice maker running, you must hook up a special type of hose from the refrigerator connection to a water source. This kit consists of 6 feet of flexible tubing called PVC hose with a built-in compression nut at both ends. Since compression nuts come in different sizes, check the manual for the size that will be needed for your model of refrigerator.
Connect and install the water line to your refrigerator
How to Hook Up a Water Line to a Refrigerator | HowStuffWorks
Refrigerators with automatic ice makers are a great convenience, especially on a hot day. However, there is nothing automatic about getting a water line hooked up to the ice maker. If you are lucky, there will be a hookup in your kitchen wall near the refrigerator. If not, you will need to run a line to the nearest cold water pipe, which is probably in the floor below your kitchen. An hour project of drilling and running flexible hose is well worth the pleasure of ice on demand. Select the location for the valve on your water line. The folks at GE Appliances recommend using a vertical pipe, if available.
How to Hook Up a Water Line to a Refrigerator
A refrigerator with an automated ice maker and a built-in water dispenser does absolutely nothing if you do not have a water line to connect to it. You can solve this with an ice maker installation kit that allows you to use the plumbing beneath the sink. The kit provides you with the required parts to hook up a water line to your refrigerator. Find your water supply lines beneath your sink. You may have three water supply lines beneath the sink; two lines connect directly to the faucet while the third line connects to the dishwasher.