E9 error; ice basket is not full but machine indicates ice bin full and stops making ice.

Safety: Disconnect power before working near the ice chute or sensor assemblies.

Steps:

• Empty and reseat the basket: Remove the ice basket, empty it, and reinstall it correctly. Some Caso models require the basket to be fully seated to clear the full-bin signal.
• Clean the sensor: If your model uses an infrared ice level sensor, locate the emitter and receiver near the top of the ice bin opening. Clean both lenses with a soft, dry cloth to remove frost, condensation, or dust.
• Check mechanical switch: On models with a mechanical bin-full lever, ensure the lever moves freely and is not stuck by ice. Gently move it up and down to verify smooth operation.
• Inspect wiring: Follow the sensor or switch wires back to the control board. Look for loose plugs or damaged insulation.
• Test the switch (if applicable): Use a multimeter to check continuity of the bin-full switch in both positions. Replace if it does not change state.
• Replace sensor: If cleaning and alignment do not resolve E9, replace the ice bin full sensor assembly (IR sensor pair or mechanical switch) with a compatible Caso part.