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Setting the water hardness
The steam oven is set at the factory to water hardness setting
IV (Very hard 4).
If your water hardness level differs from this you will need to
re-programme the appliance.
You can use the test strip supplied to check the water
hardness level, or your local water supplier will be able to
advise you on the water hardness of your area.
The water hardness is shown as settings I to IV equivalent to
the German scale 1 to >21 °dH (0.2 >3.8 mmol/l).
Hardness
setting
Display Hardness level
I Soft 1 1-7 °dH
(0.2-1.3 mmol/l)
II Medium 2 8-14 °dH
(1.4-2.5 mmol/l)
III Hard 3 15-21 °dH
(2.7-3.8 mmol/l)
IV Very hard 4 >21 °dH (above
3.8 mmol/l)
Using for the first time
18