WMF 9000F VB User Manual page 75

Please observe the following instructions so as to
prevent problems with and damage to the coffee
machine:
• For drinking water with carbonate hardness from
9 °dKH or higher, a WMF water filter must be
fitted. Failing to use the water filter recommended
by WMF Service may damage the coffee machine
(e.g. due to scale deposits).
• 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 a company holiday (several days or weeks)
we recommend running the cleaning mode at least
twice before reusing the machine.
User Manual WMF 9000 F VB
Safety and warranty
System cleaning
w Cleaning programs
page 63
75