Installation and Operating Manual
HOBS
12
SLIGHT CONTAMINATIONS
Small stains and slight dirt should be removed
with a damp cloth with a small amount of de-
tergent for manual dishwashing, or a bleach
for laundry. The remaining detergent should
be washed off with cold water, and then the
surface must be wiped dry.
Stains left by boiled out water should be re-
moved with vinegar, or lemon juice, or with
solutions intended for the dissolution of lime.
If any of these chemicals has accidentally
fallen on the metal frame (if any, depending
on the model), it should be immediately re-
moved with a damp cloth, otherwise matte
spots will be left on the frame.
SEVERE CONTAMINATIONS
Cleaning agents should be applied neat us-
ing paper towel and then rubbed into the
surface. Leave the cleaning agent for a while,
so that it react with the dirt, then wash it out
with cold water and wipe dry the surface of
the hob. If the cleaner was not wiped out
from the hob completely, it may damage the
surface when it is heated up.
Extremely severe, heavy contaminations
should be removed with a glass cleaning
scrapper (see Figure 6). These scrappers are
commercially available in the market. When
purchasing the scrapper, pay attention to
its handle. The handle must not be made of
plastic, since the plastic can melt when the
scrapper is used for cleaning hot surface.
Even if the hob color has changed, it doesn’t
affect its functionality and service life. This
discoloration doesn’t affect the structure of
the hob material, being just a residues of the
burnt out foods, which haven’t been cleaned
or removed in time.
Fig. 6
Discoloration coupled with metal shimmer-
ing is caused by the friction between cook-
ware bottoms and glass-ceramic hob, or
the use of inappropriate cleaning tools. This
discoloration still can be removed by using
proper cleaners, although it will take lots of
efforts and time. Cleaning can be repeated
several times, until a contamination is com-
pletely removed.
In the event that lemon juice or vinegar, or
lime scale removal agents get in contact with
the metal frame around the glass-ceramic
surface, this may result in damaging of the
frame, as well as to the creation of discolored
or other stains on the surface
.
