Overview Of Water Hardness Settings; Setting The Water Softening Sys- Tem; Special Salt; Water Softening System → Page - Bosch SMS4HTI31E User Manual

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To avoid damage to the appliance,
water with a hardness above 9 °E
must be softened.

Overview of water hardness settings

You can find an overview of the water hardness values that can be selected
here.
You can find out how hard your water is from your local water company or by
using a water hardness tester.
Water hardness °E
0 - 8
9 - 10
11 - 12
13 - 15
16 - 20
21 - 26
27 - 38
39 - 62
Note: Set the water hardness determ-
ined on your appliance.
→ "Setting the water softening sys-
tem", Page 23
With a water hardness of 0 - 8 °E
you can dispense with special salt
and switch off the water softening
system.
→ "Switching off the water softening
system", Page 24
Setting the water softening sys-
tem
Set the water hardness on your appli-
ance.
Determine the water hardness and
1.
the appropriate setting value.
→ "Overview of water hardness set-
tings", Page 23
Press
⁠ .
2.
To open the basic settings, press
3.
for 3 seconds.
a The display shows Hxx.
Hardness range
Soft
Soft
Medium
Medium
Medium
Hard
Hard
Hard
Water softening system en
mmol/l
0 - 1.1
1.2 - 1.4
1.5 - 1.8
1.9 - 2.1
2.2 - 2.9
3.0 - 3.7
3.8 - 5.4
5.5 - 8.9
a The display shows
Press
repeatedly until the
4.
right water hardness has been set.
The value H04 is set at the factory.
To save the settings, press
5.
for 3 seconds.

Special salt

You can use special salt to soften
water.
Adding special salt
If the special salt refill indicator lights
up, add special salt to the dispenser
for special salt just before the pro-
gramme starts. The amount of spe-
cial salt required depends on the wa-
ter hardness: the higher the water
hardness, the greater the amount of
special salt required.
Setting value
H00
H01
H02
H03
H04
H05
H06
H07
⁠ .
23

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