How to Cap an Icemaker Supply Line Pull the refrigerator away from the wall and unplug the appliance to prevent electric shock. Twist the valve knob clockwise on the water supply line behind the refrigerator to shut off water flow to the ice maker. Click to see full answer. Likewise, how do you cap a water maker ice maker? How to Cap an Icemaker Supply Line Pull the refrigerator away from the wall and unplug the appliance to prevent electric shock. Twist the valve knob clockwise on the water supply line behind the refrigerator to shut off water flow to the ice maker. Also, how do you cap a plastic water line? Step 1 – Apply Primer. Wipe the ends of the pipe thoroughly. Step 2 – Apply Cement. To both the primed surfaces, apply PVC cement. Step 3 – Seal. Using the adjustable wrench, tighten the PVC cap by turning the PVC cap in the clockwise direction. Step 4 – Test. Test the capping by turning on the water. Additionally, how do I cap off an unused refrigerator water line? The unscrew the adaptor fitting out of the fridge. Reconnect the tube to the adaptor fitting and screw a 3/8″ threaded brass cap onto the end that was connected to the fridge. Use a little pipe dope or teflon tape on the threads. Turn the water back on and inspect the joints for leaks.How do you hook up a water maker to an ice maker? run the water line. Run the Water Line. The first step is to run the water line. install new valve for icemaker water line. Install the Valve. Now that the water’s off, install the new valve for the icemaker water line. mount the solenoid valve. Mount the Solenoid Valve. attach water supply line. Attach the Water Supply Line.

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