Why won't my ice maker eject ice?
Check the lever mechanism (mine looks like a flag) to make sure it moves properly.  That is the device that keeps the ice maker from constantly making more ice once the bin is filled.  There's a small spring on it that can become misaligned and keeps the ice maker from properly functioning.  

Look at that "flag" lever closely.  The spring issue may not be immediately visible to you.  Move it back and forth.  If it's binding or does not return to it's static place when you move it, that's probably the case.