Zanussi ZOS37902 User Manual page 25

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Cleaning the water tank
WARNING!
Do not put water into the water tank
during the cleaning procedure.
During the cleaning procedure,
some water can drip from the steam
inlet onto the cavity of the oven. Put
a dripping pan on the shelf level
directly below the steam inlet to
prevent water from falling onto the
bottom of the oven cavity.
After some time, you can have lime deposits in
your oven. To prevent this, clean the parts of the
CALCIUM QUANTITY TABLE INDICATED FROM W.H.O. (World Health Organization)
Calcium depos-
it
0 - 60 mg/l
60 - 120 mg/l
120 - 180 mg/l
over 180 mg/l
1. Fill in the water tank with 850 ml of water
and 50 ml of citric acid (five teaspoons).
Deactivate the oven and wait for
approximately 60 minutes.
2. Activate the oven and set the function True
Fan + Steam. Set the temperature 230 °C.
Deactivate it after 25 minutes and let it cool
down for 15 minutes.
3. Activate the oven and set the function True
Fan + Steam. Set the temperature between
130 and 230 °C. Deactivate it after 10
minutes.
Let it cool down and continue with the removal
of the tank contents. Refer to "Emptying the
water tank".
4. Rinse the water tank and clean the
remaining lime residue in the oven with a
cloth.
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Water hardness
(French de-
grees)
0 - 6
0 - 3
6 - 12
3 - 7
12 - 18
8 - 10
over 18
over 10
oven that generate the steam. Empty the tank
after each steam cooking.
Types of water
• Soft water with low lime content - the
manufacturer recommends this because it
decreases the quantity of cleaning
procedures.
• Tap water - you can use it if your domestic
water supply has purifier or water sweetener.
• Hard water with high lime content - it
does not have an effect on the performance
of the appliance but it increases the quantity
of cleaning procedures.
Water classifi-
(German de-
grees)
Sweet of soft
Medium hardness
Hard or calcareous 40 cycles - 1.5
Very hard
5. Clean the drain pipe by hand in warm water
with soap. To prevent damage, do not use
acids, sprays or similar cleaning agents.
Cleaning the oven door
The oven door has three glass panels.You can
remove the oven door and the internal glass
panels to clean them.
The oven door can close if you try to
remove the glass panels before you
remove the oven door.
CAUTION!
Do not use the appliance without the
glass panels.
Run decalcifi-
cation
cation every
75 cycles - 2.5
months
50 cycles - 2
months
months
30 cycles - 1
month
25

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