Icemaker not working properly

The icemaker was an exact duplicate of the one in my refrigerator. I installed the correct shutoff bar on the icemaker and removed the tab for the water fill spout. After pulling the power cord I loosened the two top screws with a nutdriver and removed the bottom screw. I pulled the icemaker from the rear wall, away from the fill spout, and disconnected the wire harness. Installation was just the reverse of the removal.