Have someone help you:
Remove the rear panel from the unit and you'll need to check the WATER valve for 120v while the paddle is being pushed in by your spouse or a friend...
Also, if there is a filter, has it been changed recently?
If you have 120v at the water valve, you can unhook the water line from the valve, the plastic 5/16" line and then see if water comes out from the bottom of the valve, if not, your valve is bad.
For the icemaker:
Empty your bin into some container and place it in your freezer for storage. Allow the bin to fill for 24 hours and do not use any ice from the bin. After 24 hours, remove the bin and individually count the cubes. You should have between 90 and 130 cubes normally.
In Home Appliance Service Technician