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Before using for the first time
19
Water softener
In order to achieve good cleaning res-
ults, the dishwasher needs to operate
with soft water. Hard water results in
the build-up of calcium deposits on
crockery and on the inner surfaces of
the appliance.
Mains water with a water hardness level
higher than 0.9mmol/l (5°dH – German
scale) must be softened. This occurs
automatically in the integrated water
softener. The water softener is suitable
for a water hardness level of up to
12.6mmol/l (70°dH – German scale).
In order to be reactivated, the water
softener requires dishwasher salt.
Depending on the water hardness level
(<3.8mmol/l, or <21°dH – German
scale), dishwasher salt is not required if
combination detergents are being used
(see “Detergent – Active ingredients”).
- You should programme the dish-
washer to the correct water hardness
for your area.
- Your local water authority will be able
to advise you of the water hardness
level in your area.
- Where the water hardness fluctuates,
e.g. between 1.8 and 2.7mmol/l (10–
15°dH – German scale), always pro-
gramme the dishwasher to the higher
value (2.7mmol/l or 15°dH in this ex-
ample).
If the water hardness in your area is
available in a unit other than °dH, you
can convert the values as follows:
1°dH = 0.18mmol/l = 1.78°fH
The dishwasher is programmed at the
factory for a water hardness level of
2.5mmol/l (14°dH – German scale).
If your water hardness level corres-
ponds to this setting, you can skip to
the next section.
However, if you have a different water
hardness level, you must adjust the wa-
ter softener to match your water hard-
ness.
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