How To Check the Shutoff Arm
An arm extends away from the ice maker over the ice cube bin. During each ice making cycle, the arm rises up and then drops back down after the new ice is dumped into the ice cube bin. As ice accumulates in the bin it prevents the arm from dropping back down. When the arm is high enough, the ice maker shuts off and no more ice is made until the ice level in the bin drops.
The ice maker can also be turned off manually by lifting the arm all the way up into a locked position (shown below).
The arm is supported at one or both ends. One end extends into the back of the front support (see photo above). If it is not securely in place, it could cause the ice maker to malfunction. Confirm that the arm is securely in place.
For proper operation, confirm that arm is in the lowered position and that nothing is blocking it from normal movement.
To test the shutoff function, lift the arm up into the manual shutoff position. Recheck the unit later to confirm that no ice is being made.