Visible mold, slime, or heavy limescale inside the reservoir or on the evaporator.

Safety: Unplug the unit. Wear gloves if dealing with mold or strong cleaners.

Steps:

• 1. Manual cleaning: Remove the ice basket and any removable parts. Scrub the reservoir, water tray, and basket with warm soapy water and a soft brush.
• 2. Descale: Run a descaling cycle with an appropriate descaler to remove limescale from the evaporator and water paths.
• 3. Disinfect: After descaling, rinse thoroughly and run a cycle with a mild food-safe sanitizer if recommended by Princess.
• 4. Maintenance schedule: Clean the unit at least once a month, or more often in hard water areas.