I will be happy to help you out. Can I get the model number to the refrigerator?
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Are you talking about the water line under the freezer door?
I the machine still making ice?
That water line at the bottom of the door should connect just under the front of the cabinet with a coupler. This is where the water from the door comes in from. If the refrigerator has been recently moved and the doors where taken off, someone may not have reconnected the water line. Look under the front of the fridge, you will see the other end of the line that the tube connects too.
Also about the machine not dispensing water or ice. If the wire connector at the top of the freezer door hinge is not connected, the dispensor will not work at all. I believe the wires are disconnected under the top hinge cover of the freezer. Your complaint would have been, water is running on my floor! Also check the water filter on the bottom of the fridge. If this is not fully seated into its housing, no water will work in the fridge. Icemaker or water dispensor.
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Do you see both ends of the water line? The coupler may be missing.
Does it run into the freezer door hinge. It should come out of the door about six inches and end. Then it will attach to another piece of hose and run to your water valve behind the fridge. There is a coupler that connects the two ends of hose together.
There should only be two ends under the freezer door.
Let me know what you find