.Depending on the type of countertop, a small, uneven gap may form between the
countertop and the cooktop. For this reason, there is a flexible seal all the way
around the cooktop.
Due to the characteristics of the material, there can be irregularities in the glass
ceramic surface. Because of the mirror-smooth surface of the cooktop, it is possible
for even the smallest of bubbles, less than 1 mm in diameter, to be visible. They are
not detrimental either to the functionality or the durability of the glass ceramic
cooking surface.
Normal operating
sounds for the
appliance
Induction heating technology is based on the vibration resistance of certain metals
when subjected to high-frequency waves. In some circumstances, these vibrations
can create certain sounds, such as the following:
Low humming like a
transformer
Quiet whistling
Crackling
High-pitched
whistle
Fan noise
This occurs when cooking at a high power. The cause of this is the amount of
energy which is transmitted from the appliance to the cookware. This sound
disappears or becomes quieter when the power is turned down.
This occurs when the cookware is empty. This sound disappears when water or
food is added to the cookware.
This sound occurs when cookware is used which consists of layers of different
materials. The noise is caused by vibrations in the joint faces between the different
layers. It may change depending on the amount and type of food being cooked.
This noise occurs principally in cookware which consists of layers of different
materials when it is used at the highest heat setting and on two elements next to
each other. This whistling disappears or becomes quieter when the power is turned
down.
The electronics require a controlled temperature in order to function reliably. The
cooktop is therefore fitted with a fan which runs at various speeds according to the
temperature detected. The fan may also continue to run even after the cooktop has
been switched off if the temperature it detects is still too high.
The sounds described are a normal part of induction technology and do not indicate
a defect.
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