Frequently Asked Questions
89
Problems when preparing milk
Problem
Possible cause and solution
The milk sprays during
dispensing and hissing
noises can be heard.
Even though milk froth
should be prepared, on‐
ly hot milk emerges
from the main dispens‐
er.
The milk temperature is too high. Good milk froth can
only be achieved when cold milk (below 50°F/10°C) is
used.
Check the temperature in the milk flask.
The milk flask has not be inserted properly so that not
only milk, but also air is suctioned in.
Push in the milk flask to the limit stop.
The main dispenser is not correctly mounted.
Check whether the main dispenser is correctly as‐
sembled.
The milk pipework in the milk flask lid is dirty.
Taking apart the milk flask lid and cleaning it with
the cleaning brush (See "Cleaning and care – Milk
flask").
Clean the main dispenser and the milk valve with
the cleaning brush (see "Main dispenser" and
"Maintaining the milk valve").
The elbow connector is blocked and must be ex‐
changed.
Exchange the elbow connector (see "Exchanging
the elbow connector").
Fill and insert milk container
appears in the display
even though the milk
flask has been filled and
inserted in the machine.
The milk flask lid could be dirty. Therefore, the sens‐
ing mechanism does not function correctly.
Clean the cover and the milk flask thoroughly. Dis‐
assemble the cover and clean it with the included
cleaning brush (see "Cleaning and care – Milk
flask with cover").