E8 displayed; unit may beep and stop, often associated with water supply issues

Safety: Unplug the ice maker before working around water and electrical components.

Steps:

• Check reservoir level: Ensure the water reservoir is filled to the correct mark. Some Antarctic Star models will show E8 if the level is too low or too high.
• Locate the level sensor: Depending on model, this may be a plastic float assembly or metal level electrodes in the reservoir.
• Clean the sensor: Remove mineral deposits or slime from the float or electrodes using a soft brush and a vinegar-water solution. Rinse thoroughly.
• Verify float movement: Move the float up and down by hand. It should move freely and, if attached to a microswitch, you should hear a click.
• Inspect wiring: Follow the sensor wires to the control board. Ensure connectors are secure and wires are intact.
• Test switch: With a multimeter, test continuity of the float switch in both positions. Replace the float switch assembly if it does not change state.
• Reassemble and test: Refill the reservoir, plug in the unit, and start a cycle to confirm E8 is cleared.