
3890
7
6
Sugar and sugar-laden food may permanently damage the
glass-ceramic surface (Figure 5); therefore, they should
be removed from the glass-ceramic surface as soon as
possible, although the cooking zone may still be hot
(Figure 4).
Any change in the color of the glass-ceramic
surface
does not aff ect its operation or the stability of
the surface. Such discolorations are mostly a result of
burnt food residues or use of cookware made of materials
such as aluminum or copper; these stains are diffi
cult to
remove.
Warning:
All damage described above predominantly
relates to the aesthetics, i.e. appearance of the appliance
and do not aff ect its functionality directly. Such errors
cannot be the subject of a warranty claim.
Figure 5
NOISE AND ITS CAUSES DURING INDUCTION COOKING
Noises and sounds
Cause
Solution
Induction-
generated
operating noise
Induction technology is based on
the properties of some metals under
electromagnetic eff ect. It results in
so-called eddy currents that force
the molecules to oscillate.
These oscillations (vibrations) are
transformed into heat. Depending
on the type of metal, this could
result in quiet noises.
This is normal and it is not a
result of any malfunction.
Transformer-like
buzz
Occurs when cooking at a high
power level. The reason for this is
the amount of energy transferred
from the cooking hob to the pot or
pan.
This noise will disappear or
weaken when you reduce
the power level.
Vibration and
crackling of the
cookware
This noise appears in cookware
(pots or pans) made of diff erent
materials.
It results from vibrations
along the adjacent surfaces
of diff erent material layers.
This noise depends on
the cookware. It can vary
depending on the amount
and type of food being
cooked.
Fan noise
Correct operation of induction
electronic components requires
temperature control. Therefore,
the cooking hob is fi tted with a
fan which operates at varying
speed, depending on the perceived
temperature.
The fan may operate even
after the cooking hob has
been switched off , if the
temperature remains too
high.
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