First, ensure that you have firmly pushed in the milk reservoir into the unit. If so, the Cappuccino and Latte button lights will begin to pulse. The pulsing means the unit has made contact with the milk reservoir and is preparing itself to use the milk reservoir. When the button lights stop pulsing and remain illuminated, the Cappuccino and Latte functions are ready for use.
- How can I tell when my milk reservoir is fully inserted?