John Lewis JLDWW 905 - Manual (Page 12)

Before using your dishwasher for the first time:
1. Ensure that the electrical and water connections comply with
the installation instructions
2. Remove all packaging from inside the appliance
3. Set the water softener
4. Pour 1 litre of water inside the salt container and then fill with
dishwasher salt
5. Fill the rinse aid dispenser
NOTE:
If you want to use the "3 in 1" - "4 in 1" combi tablet
detergents, carefully read the information given in
"Different kinds of detergents".
The water softener
The dishwasher is equipped with a water softener designed to
remove minerals and salts from the water supply, which would
have a detrimental or adverse effect on the operation of the
appliance.
The higher the content of these minerals and salts, the harder
your water is.
Water hardness is measured in equivalent scales, Clarke degrees,
French degrees (°TH) and mmol/l (millimol per litre -
international unit for the hardness of water).
The softener should be adjusted according to the hardness of the
water in your area.Your local Water Authority can advise you on
the hardness of the water in your area.
The water softener must be set in both ways: manually, using the
water hardness dial and electronically, using the function buttons
on the control panel.
The water softener must be set in both ways: manually, using the
water hardness dial and electronically, using the function buttons
on the control panel.
When the Dishwasher is first installed
12
Clarke °TH mmol/l manually electronically
64 - 88
53 - 63
46 - 52
36 - 45
28 - 35
23 - 27
18 - 22
13 - 17
5 - 12
< 5
9,0 - 12,5
7,6 - 8,9
6,5 - 7,5
5,1 - 6,4
4,0 - 5,0
3,3 - 3,9
2,6 - 3,2
1,9 - 2,5
0,7 - 1,8
< 0,7
91 - 125
76 - 90
65 - 75
51 - 64
40 - 50
33 - 39
26 - 32
19 - 25
7 - 18
< 7
2
2
2
2
2
2
1
1
1
1
level 10
level 9
level 8
level 7
level 6
level 5
level 4
level 3
level 2
level 1
yes
yes
yes
yes
yes
yes
yes
yes
yes
no
Water hardness Adjusting the water hardness setting
Level indicated on the
digital display
Use of salt