Display shows E10; ice maker does not detect water in the reservoir even when it is full, and will not start ice production.

Safety first: Disconnect power and close the water supply valve.

• Drain and inspect reservoir: Remove water from the reservoir. Inspect for mineral deposits, slime, or foreign objects that could jam the float or sensor.
• Clean float mechanism: If a mechanical float is used, move it up and down by hand. Clean the shaft and float body with warm water and a mild cleaner until it moves freely.
• Test float switch: Disconnect the float switch wires and check continuity while moving the float. Replace the switch if it does not open and close reliably.
• Electronic sensor check: For electronic probes, clean them with a non-abrasive cloth. Ensure the sensor harness is firmly connected to the control board.
• Reassemble and test: Refill the reservoir, restore power, and verify that the error clears and the unit begins a fill or ice cycle.