WMF 1100S User Manual page 97

Please observe the following instructions so as to
prevent problems with and damage to the coffee
machine:
• For drinking water with carbonate hardness from
5 °dKH or higher, a WMF water filter must be fitted;
otherwise, the coffee machine can be damaged due
to build-up of scale.
• For insurance reasons always ensure that, at the
end of operation the mains switch is switched off
or the mains plug is unplugged. For machines with
a constant water supply, the water mains tap for the
inlet pipe must be closed.
• We recommend damage prevention measures, such
as:
- installation of a suitable water monitor in the
mains water supply
- installation of smoke alarms
• After shut off for several days we recommend
running the cleaning program at least twice before
reusing the machine.
User Manual WMF 1100 S
Safety and warranty
System cleaning
w C leaning programs
page 68
97