WMF 1500S User Manual page 96

Safety and warranty
Please observe the following instructions so as to
prevent problems with and damage to the coffee
machine:
• For drinking water with carbonate hardness in
excess of 5 gpg (5 °dKH), 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 main water supply tap is turned
off and the mains switch is switched off or the
mains plug is unplugged.
• 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.
96
System cleaning
w Cleaning programs
page 64
User Manual WMF 1500 S