Siemens SN 56N591 Operating Instructions Manual - Page 6

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Water softening system

To ensure good washing results, the
dishwasher requires soft water, i.e.
containing low amounts of lime, otherwise
white limescale will be deposited on the
utensils and inner container.
Tap water above 7° dH (from set value
:
) must be softened. The water is
softened with salt (regeneration salt) in the
water softening system of the dishwasher.
The setting and therefore the required
amount of salt depends on the degree of
hardness of your tap water (see table).

Setting

The amount of salt dispensed can be set
from :
to :
Salt is not required at the set value :
– Find out about the hardness value of
your tap water. Your water utility
company will help you with this.
– Set value can be found in the water
hardness table.
– Close the door.
– Switch on ON/OFF switch (.
– Hold down programme button # and
press START button h until : .... is
indicated on the digital display.
– Release both buttons.
The LED for button # flashes and the
digital display )* displays the factory
setting :
.
To change the setting:
– Press programme button 3.
Each time the button is pressed, the
set value increases by one level; when
the value of :
the display jumps back to :
– Press START button h.
The chosen setting has now been
stored.
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has been reached,
(off).

Water hardness table

Water
Hardness
hardness
range
value
°Clarke
0‒8
9‒10
11‒12
medium
13‒15
medium
16‒20
medium
21‒26
27‒38
39‒62
.
mmol/l
soft
0‒1.1
soft
1.2‒1.4
1.5‒1.8
1.9‒2.1
2.2‒2.9
3.0‒3.7
hard
hard
3.8‒5.4
hard
5.5‒8.9
Set value
on the
machine
:
:
:
:
:
:
:
: