Milk frother sucks in air but no milk, or milk froth is very poor

Cleaning and setup:

• Disassemble frother: Take apart the milk frother or carafe head and soak all parts in warm water with milk system cleaner.
• Clean suction tube: Run a small brush through the milk tube and rinse thoroughly.
• Check seals: Inspect O-rings and seals on the frother for cracks; replace if worn.
• Use cold milk: Use fresh, cold milk (3–4°C) and avoid UHT milk if possible.

If frothing remains poor after cleaning and using proper milk, the cappuccinatore assembly may be worn and should be replaced.