Miele B 2312 Operating Instructions Manual page 46

Cleaning and care
46
The indicator lights on the control panel will guide you
through the descaling process. Please follow the prompts
given by the indicator lights, for example 2 empty residual
water container, k fill water container, etc.
The whole procedure takes approx. 90 minutes. Carry out the
necessary activities only when prompted to do so by the
indicator lights. After the start of the descaling process you
need to be present after approx. 20 minutes and after a
further 60 minutes approx. The appliance can be left
unattended for the rest of the duration of the descaling
process.
Ideally start the descaling process when the appliance has
cooled down and immediately after switching on. This avoids
having to wait for up to 3 hours for the appliance to cool
down.