• Scratches or dark stains on the surfacehave no effect on how the hoboperates.• Use a special cleaner applicable forthe surface of the hob.• Use a special scraper for the glass.6.2 Cleaning the hob• Remove immediately: melted plastic,plastic foil, and food with sugar. If not,the dirt can cause damage to the hob.Put the special scraper on the glasssurface at an acute angle and movethe blade on the surface.• Remove when the hob is sufficientlycool: limescale rings, water rings, fatstains, shiny metallic discoloration.Clean the hob with a moist cloth andsome detergent. After cleaning, rubthe hob dry with a soft cloth.7. TROUBLESHOOTINGWARNING!Refer to Safety chapters.7.1 What to do if...Problem Possible cause RemedyYou cannot activate or oper-ate the hob.The hob is not connected toan electrical supply or it isconnected incorrectly.Check if the hob is correctlyconnected to the electricalsupply. Refer to the connec-tion diagram.The fuse is released. Make sure that the fuse isthe cause of the malfunction.If the fuse releases againand again, contact a quali-fied electrician.Activate the hob again andset the heat setting in lessthan 10 seconds.You touched 2 or more sen-sor fields at the same time.Touch only one sensor field.STOP+GO function oper-ates.Refer to "Daily use" chapter.There is water or fat stainson the control panel.Clean the control panel.An acoustic signal soundsand the hob deactivates.An acoustic signal soundswhen the hob is deactivated.You put something on oneor more sensor fields.Remove the object from thesensor fields.The hob deactivates. You put something on thesensor field .Remove the object from thesensor field.ENGLISH 15