Though an ice maker may be useful to have, it can also be a source of frustration when dealing with your refrigerator and freezer. Ice makers have multiple components, including tubing leading in from an external water source and the maker itself—and any of these components could cause problems for your ice maker's operation. A common issue is when the ice maker won't drop ice cubes into the ice tray, even when you can hear the ice maker working.
Make sure the ice maker is in the "Make" position if the unit does not create any noise at all. Nearly all ice makers are turned on and off by moving the silver bar at the right of the unit. If the silver bar is in the up position, pointing out away from the ice maker horizontally, this means that the unit is off. Turn the ice maker to the "Make" position by pressing the silver bar down; in certain models, the bar lies flat against the side of the ice maker in this position.
Check for blockage where the ice comes out of the ice maker. Access the opening on the bottom of a built-in ice maker by moving the ice tray out of the way and looking beneath the ice maker. If ice is sitting in that opening, use your fingers or a utensil to move the ice around. Often the ice has simply fallen wrong and gotten stuck and will come free with a little movement.
Change the gear on your ice maker if the unit runs and makes noise, but ice never appears in the opening at the bottom of the ice maker. According to Appliance Aid, some ice makers, including GE makers, have gears that break easily and can only be fixed by replacement. To access the gear to replace it, open the front cover by pulling up the latch that holds the unit in place and pull the cover toward you. Depending on your ice maker, replace the gear by pulling it free or by removing the screw that holds it in place, and placing the new gear in the unit.