Page GB-16 TroubleshootingTroubleshootingTroubleshooting tableProblem Possible causes Solutions/tipsThe hob cannot beswitched on; the displayis blank.The power supply hasbeen interrupted.Check whether the socket has power andwhether the mains plug is properly plugged intothe socket.The sensors do not re-act.The button lock is activat-ed.Switch the button lock off (see „Button lock“ onpage GB-12).The sensors respondpoorly.There is a film of waterover the sensors.Clean and dry the sensor field.You are not touching thesensors with you entirefingertip.Always touch the sensors with your entire fin-gertip, not just the very end of the finger.Fissures or cracks in thehob. WARNING!Risk of electric shock and short circuit!■ Disconnect the mains plug immediately and stop using the hob.The cookware does notheat up and the mes-sage ‘ ’ appears on thedisplay.The cookware is not rec-ognised because it is notsuitable for induction hobs.Only use suitable cookware (see „The rightcookware“ on page GB-10).The cookware is too smallor is not centred on thecooking zone.Only use cookware with a diameter of at least14 cm and place it in the centre of the cookingzone.The cookware makesa crackling or whirringnoise.These noises are relatedto the design and do notconstitute a defect.No measures requiredThe cookware emits awhistling sound when ona high heat setting.Fan noise The hob fan is runningwhen a cooking zone isswitched on. It continuesto run for a while afterswitch-off.Only disconnect the mains plug once the fanhas stopped.The hob switches off au-tomatically.The timer was activated. See page GB-12.