Fixing a leaking residential refrigerator automatic ice maker water supply line requires locating the source of the moisture and securing or replacing the plumbing connections. First, unplug the refrigerator and turn off the household water supply saddle valve behind the appliance. Second, inspect the plastic or copper water supply tubing where it connects to the water inlet valve solenoid at the bottom rear of the fridge; tighten any loose compression nuts or push-fit fittings. Third, check for cracks along the tubing. You can troubleshoot leaks easily by wiping components dry and observing. You can verify that your repair is successful when turning the water supply back on and running the ice maker results in zero drips or leaks around the fittings or supply line.
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