E6 appears on the display, and the ice maker stops mid-cycle; ice may be partially formed.

Safety: Unplug the unit before working inside the ice bin area.

Steps:

• Check for blockage: Open the ice storage bin and remove excess ice. Ensure no cubes are stuck in front of the ice-full sensor window or hanging from the evaporator into the sensor path.
• Clean sensor lenses: If your SMAD model uses an infrared ice level sensor, gently clean the emitter and receiver windows with a soft cloth and warm water. Do not use abrasive cleaners.
• Inspect alignment: Verify that the sensor brackets are not bent and that the emitter and receiver face each other directly.
• Check wiring: Follow the sensor wires to the control board. Reseat the connectors, and look for damage.
• Test operation: With the unit reassembled and powered, simulate a full bin by placing an object in front of the sensor (if accessible) and see if the unit responds. If E6 persists, the sensor assembly is likely defective.
• Replace sensor: Remove mounting screws and install a new ice-full sensor / infrared level sensor assembly. Reconnect wiring and test.