Water hardness
21
Water hardness is an indication of the
amount of minerals dissolved in water.
The more minerals in the water, the
higher the water hardness. The harder
the water is, the more frequently the
coffee machine needs to be descaled.
The coffee machine measures the
amount of water used and steam made.
Depending on the level of water
hardness set, more or fewer drinks can
be dispensed before the appliance
needs to be descaled.
Set the water hardness level on the
coffee machine to the water hardness
level for the local area to ensure that the
appliance functions correctly and is not
damaged. A prompt to descale the
coffee machine will then appear in the
display at the correct time.
Contact your local water supplier to find
out the water hardness in your area.
The machine is programmed ex-works
to hardness level3.
The appliance has 4programmable
hardness levels:
°dH mmol/l ppm
(mg/l CaCO
3
)
Set-
ting*
0–8.4 0–1.5 0–150 Soft 1
8.4–14 1.5–2.5 150–250 Medium 2
14–21 2.5–3.8 250–375 Hard 3
>21 >3.8 >375 Very hard
4
* The hardness level shown in the display may
differ from the hardness level in your area. You
must follow the values in the chart to set your
coffee machine to your local water hardness level.
Setting the water hardness
Touch the sensor control.
Select Settings | Water hardness and
confirm withOK.
Select the hardness level and confirm
withOK.
The setting is now saved.
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