Make sure the refrigerator and ice maker are plugged in and your ice maker is turned on before looking for other problems. If your ice maker is newly installed, it can take up to 24 hours for the ice maker to cool down enough to make ice. A new ice maker cannot produce ice until the ice mold temperature cools to about 15 to 16 degrees. Once the ice maker produces ice, it may take a few ice-making cycles to clear the line of air. Once the air is cleared from the newly connected water line, it should work properly.