E3 error; ice maker stops mid-cycle, often during ice release or harvest

Safety: Unplug the ice maker before cleaning or adjusting sensors.

Steps:

• Empty the ice basket: Remove all ice from the storage bin to ensure the bin is not actually full.
• Identify the level sensor: Antarctic Star ice makers may use either an infrared (IR) optical sensor pair near the bin opening or a mechanical lever/float switch above the ice basket.
• Clean the sensor: For IR sensors, gently clean the emitter and receiver windows with a soft cloth and mild glass cleaner. Any frost, mineral film, or dirt can cause false "full" readings.
• Check alignment: Make sure the IR sender and receiver face each other directly and the brackets are not bent. Adjust the bracket so the beam passes over the top of an empty bin.
• Inspect mechanical switch: If your model uses a lever or float, move it by hand. It should move freely and click the microswitch. If it sticks, clean off ice buildup and debris.
• Check wiring: Follow the sensor wires to the control board. Ensure connectors are fully seated and wires are not broken.
• Test operation: Plug the unit back in and start a cycle with the bin empty. If E3 persists, the level sensor or control board may need replacement.