Siemens HL 54024 Instruction Manual page 16

Hob discoloration
Examples of possible
damage
16
q The glass scaper has a sharp blade. It is best not
to use it too near the hob surround, as this could
be damaged.
Iridescent discoloration (metallic shimmer) is caused
by particles rubbing off the bases of some pans or by
using unsuitable cleaners. This can be removed with
Sainsbury's CERAMIC Hob CLEANER or Hob Clean
but it is a time consuming job. Our customer service
will remove such stains at a charge. Aggressive or
abrasive cleaning agents will rub off the decor, cau
sing dark patches.
Any food remains that were not removed and have
become baked on will also cause hob discoloration.
They do not influence the function or stability of the
glass ceramic.
Pitting caused by melted sugar
or food with a high sugar
content.
Metallic shimmering
discoloration due to wear
from pan bases or use of an
unsuitable cleaning agent.
Scratches caused by salt,
sugar, sand or rough pan bases
Decor rubbed off due to use
of an unsuitable cleaning
agent.