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Preheat the empty oven before the first use.
Step 3
The oven can emit an odour and smoke during preheating. Make sure that the room is
ventilated.
5.4 How to set: Water
hardness
When you connect the oven to the mains
you have to set the water hardness level.
Step 1
Put the test paper
into water for about
1 sec. Do not put
the test paper under
running water.
The colours of the test paper continue to change. Do not check water hardness later
than 1 min after test.
You can change the water hardness level in the menu: Basic settings / Water hardness.
The table shows water hardness range (dH) with the corresponding level of Calcium
deposit and the water classification. Adjust the water hardness level according to the
table.
Water hardness
Level
1
2
3
4
Set the maximum temperature for the function:
Let the oven operate for 15 min.
Step 2
Shake the test paper
to remove the excess
of water.
Test paper
dH
0 - 7
8 - 14
15 - 21
≥22
.
Use the test paper or contact your water
supplier to check the water hardness
level.
Step 3
After 1 min, check
water hardness with
the table below.
Calcium de‐
Calcium de‐
posit (mmol/l)
posit (mg/l)
0 - 1.3
1.4 - 2.5
51 - 100
2.6 - 3.8
101 - 150
≥ 3.9
Step 4
Set the water hard‐
ness level in the
menu: Basic settings.
Water classi‐
fication
0 - 50
soft
moderately
hard
hard
≥151
very hard
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