Filling The Container For Dishwasher Salt; Water Hardness; Setting The Water Hardness - Miele PFD 400 Operating Instructions Manual

Water hardness

In order to achieve excellent cleaning res-
ults, the machine requires a supply of soft
water with a low calcium content. Hard
mains water results in the build-up of cal-
cium deposits on the load items and on the
wash cabinet walls.
Mains water with a water hardness of
0.7 mmol/l (4 °dH) or more must be
softened. This occurs automatically during a
programme sequence in the built-in water
softener.
The water softener must be set to the exact
hardness of the mains water (see "Setting
the water hardness").
Your local water authority can give you in-
formation about the exact water hardness in
your area.
In the event of a fault, it will help the ser-
vice technician if you know the hardness of
your local water supply. Record the hard-
ness of the mains water here:
______________________mmol/l or °dH
The water softener must be reactivated at
regular intervals. Special dishwasher salt is
required for this. Reactivation is carried out
automatically during a programme se-
quence.
If the hardness level of your water is con-
sistently less than 0.7 mmol/l (= 4 °dH),
salt is not required for the water softener.
However, the water hardness level must
still be set.

Filling the container for dishwasher salt

Setting the water hardness

Water hardness can be set between 0 and
12,5 mmol/l (0–70 °dH).
The water hardness is preset to 2.5 mmol/l
(14 °dH) ex-works.
With varying water hardness, always set the
highest level. If the water hardness fluctu-
ates between, for instance, 1.4 and
3.1 mmol/l (8 and 17 °dH), the water hard-
ness must be set to 3.1 mmol/l (17 °dH).
Water hardness setting values can be found
in the chart on the next page.
The menu is saved under the following input
path.
 Further choices


Water
hardness
Set the water hardness level by tapping

the - symbol (lower) and
(higher).
Press

Extended settings
 Water hardness
14
°dH
-
+
OK
to save the setting.
+ OK
symbol
25