Removing the residues and stubbornresidues:1. Food containing sugar, plastics, tin foilresidues should be removed at once,best tool for cleaning glass surface is ascraper (not included with the appli-ance). Place a scraper on the glass ce-ramic surface at an angle and removeresidues by sliding the blade over thesurface. Wipe the appliance with adamp cloth and a little washing up liq-uid. Finally, rub the appliance dry usinga clean cloth.2. Limescale rings, water rings, fatsplashes, shiny metallic discolorationsshould be removed after the appliancehas cooled down using cleaner forglass ceramic or stainless steel.What to do if…Problem Possible cause RemedyThe cooking zones willnot switch on or are notfunctioning.More than 10 seconds passedsince you switched on the hob.Switch the appliance on again.The child safety device or theLock is on .Deactivate the child safety de-vice (See the sections “Childsafety device ” or “Lock”).Several sensor fields weretouched at the same time.Only touch one sensor field.Acoustic signal sounds,appliance switches off.One or more sensor fields havebeen covered for longer than10 seconds.Uncover sensor field.The residual heat indi-cator is not displayinganything.The cooking zone was only onfor a short time and is there-fore not hot.If the cooking zone is supposedto be hot, call the After SalesService.symbol plus a num-ber appears on theheat setting display.Electronics fault. Disconnect the appliance fromthe electrical supply for a fewminutes (Take the fuse out ofthe house’s electric system) Ifafter switching on again, isdisplayed again, call the cus-tomer service department.If there is a fault, first try to find a solution tothe problem yourself. If you cannot find asolution to the problem yourself, contactyour dealer or the After Sales Service.If you operated the appliance wrongly,or the installation was not carried outby a registered engineer, the visit from thecustomer service technician or dealer maynot take place free of charge, even duringthe warranty period.ENGLISH 9