Water Softener - Miele G 4920 Operating Instructions Manual

Before using for the first time

Water softener

In order to achieve good cleaning re‐
sults, the dishwasher needs to operate
with soft water. Hard water results in a
build-up of calcium deposits on crock‐
ery and in the dishwasher.
Mains water with a hardness level high‐
er than 0.7 mmol/l (4 °d - German
scale) needs to be softened. This takes
place automatically in the integrated
water softener. The water softener in
the dishwasher is suitable for a water
hardness level of up to 12.6 mmol/l (70
°d - German scale).
– The water softener requires dish‐
washer salt.
Depending on the water hardness
level (< 3.8 mmol/l, or 21 °d - Ger‐
man scale), dishwasher salt is not re‐
quired if combination tablets are be‐
ing used (see "Operation, Deter‐
gent").
– The dishwasher must be program‐
med 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 2.7 mmol/l (10 -
15 °d - German scale) always pro‐
gramme the dishwasher to the higher
value (2.7 mmol/l or 15 °d in this ex‐
ample).
In the event of a fault, it will help the
service technician if you know the hard‐
ness of your local water supply.
20
Enter the water hardness below:
____________mmol/l or °d
The dishwasher is programmed at the
factory for a water hardness level of 2.7
mmol/l (15 °d - German scale).
If this setting corresponds to the hard‐
ness of your water you do not need to
do anything more.
However, if you have a different water
hardness you must adjust the water
softener to match your water hardness.