Ice maker displays F13, ice bin remains empty, unit cycles but no cubes harvested

Safety: Disconnect power before working inside the ice compartment.

• Clean sensor windows: Many Miele ice makers use an optical sensor. Locate the emitter and receiver windows near the bin opening. Clean gently with a soft cloth and mild soapy water, then dry completely.
• Check for obstructions: Ensure the ice bin is properly seated and not overfilled or misaligned, which can block the sensor.
• Inspect mechanical switch (if used): Some models use a lever or micro-switch. Move the lever by hand and listen for a click. If no click or the lever is loose, the switch may be faulty.
• Harness check: Trace the wiring from the sensor or switch back to the control board. Reseat connectors and look for pin damage.
• Test in diagnostics: Enter service mode and view the ice level sensor status. If it always reads "bin full" or "bin empty" regardless of actual condition, replace the sensor assembly.

Note: After cleaning or replacing the sensor, power-cycle the unit to clear the F13 fault.