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7.4.7 Descaling / automatic limescale indicator
The machine should be descaled every time the clear text display indicates ”descale“. Never use
vinegar for descaling since this may damage the machine. Commercially-available antiliming agents
suitable for this type of machine are to be used. If the machine is switched off during the descaling
procedure the process will be continued when it is switched on again.
The level of water hardness will detemine how frequently the machine needs to be descaled. A test
strip has been included with the machine to test the water hardness. Hold this strip under water for
one second and take the reading after a minute. The water hardness level shown should be entered
in the user settings under “water hardness” (see 7.2.1). The automatic lime scale display will align
itself with this setting and will automatically show when it is time to descale.
Care and maintenance / Descaling
Descaling: every time the clear text display indicates “Descaling” or as required
120 l 90 l 60 l 30 l
To descale the machine firstly remove the water filter from the water tank. Fill in an antiliming agent
and dilute it with at least one litre of water. Then replace the water tank. Place a large vessel under
the nozzle and press the “descaler” button for 5 seconds.
Training manual Section 7 – Page 34
Coffee machines