Before Using For The First Time; Check And Find Water Hardness Level; Setting Up The Softening System Level Of Your Dishwasher - LG DC75 Series Owner's Manual

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BEFORE USING FOR THE FIRST TIME

※ You have to check your water hardness and set the softening system level before
operating your dishwasher.
Step 1. Check and find water hardness level
■ Method 1
1) Check the water hardness in your area.
(Your water utility company can help you with this.)
2) Set the softening system level of your dishwasher
according to the water hardness level.
Refer to Step 2.
■ Method 2
1) Check your water hardness by using test strip. (
2) Test Procedure
① Immerse all reaction zones of the test strip for approx.1sec (not in running water!).
② Shake off excess liquid from the strip and wait for 1min.
③ Check the water hardness color from the strip.(refer to the wrapper)
The value
of
d
°
°
hardness
<4
0
4 -7
5 - 9
75
7 - 14
9 - 17.5
125
14 - 21 17.5 - 26 25 - 38 2.5 - 3.8 100 - 150
250
>21
>26
375
3) Set the softening system level of your dishwasher according to the water hardness level.
Refer to Step 2.
Step 2. Setting up the softening system level of your dishwasher
Adjust the water softener to the setting corresponding to the water hardness level in your area.
The water softener has 8 adjustment levels.
The dishwasher is programmed at the factory for a water hardness level of
This can be checked and altered by using the buttons on the control panel.
1. First, ensure the dishwasher is switched off.
2. Press Half Load and Power button simultaneously and keep them pressed.
3. To change the setting:
Simply press the Half Load button, then the figure will change one by one.
The display will change between
4. Once the hardness setting is correctly adjusted, press the Delay Start button.
The hardness setting is then saved.
Hardness setting
< Water hardness level >
Hardness range
mmol/l
mg/l
e
f
°
(Ca+Mg)
Ca
<5
<7
<0.7
<29
7 - 13
0.7 - 1.3
29 - 50
13 - 25 1.3 - 2.5 50 - 100
very hard
>38
>3.8
>150
and
.
17
)
Softening
Water
system
quality
level
1
e = 14.25 mg/l CaCO
°
H0
°
1
f = 10 mg/l CaCO
soft
H1, H2
°
1
d = 10 mg/l CaO (=1,78
H3, H4
H5, H6
H7
.
°
f) (=1,25
°
e)

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