Water tank level is not detected correctly; machine stops with 'Fill water' even when tank is full.

Safety first: Unplug the machine before inspecting sensors.

• Clean water tank: Wash the tank with warm soapy water, paying attention to the float or magnet area. Rinse thoroughly.
• Check float movement: Ensure the float moves freely up and down.
• Reseat tank firmly: Insert the tank fully so the outlet valve opens.
• Bleed air: Run a hot water cycle to remove air from the intake line.
• If issue persists: The internal level sensor may be faulty and require replacement.