Problem/Display Possible Cause RemedyAcoustic signal sounds and ap-pliance switches itself on andthen off again; after 5 secondsanother acoustic signal soundsThe On/Off sensor field hasbeen covered up, e.g. by a clothDo not place any objects on thecontrol panelIf you are unable to remedy the problem by following the above suggestions, pleasecontact your local Service Force Centre.WARNING!Repairs to the appliance are only to be carried out by qualified service engineers. Consid-erable danger to the user may result from improper repairs.If the appliance has been operated incorrectly, the engineer's visit will be chargeable, evenduring the warranty period.Operating noisesDepending on the material and the processing of the base, the following noises may occurwhen using induction cooking zones.• Cracking noise 1when using cookware made of different mate-rials (Sandwich construction)• Whistling 1when using an individual cooking zone or sev-eral cooking zones with high powers when thecookware is made of different materials (Sand-wich construction)• Humming 2can occur at high power levels• Clicking 2during electric switching processes• Hissing, buzzing 3The device is fitted with a fan for cooling the electrics. A whiring noise can be heardwhen operating the fan which may deviate depending on the performance and maycontinue for a while after the appliance is switched off.The noises described are normal and do not refer to any defects.DisposalThe symbol on the product or on its packaging indicates that this product may not betreated as household waste. Instead it should be taken to the appropriate collection pointfor the recycling of electrical and electronic equipment. By ensuring this product is disposedof correctly, you will help prevent potential negative consequences for the environmentand human health, which could otherwise be caused by inappropriate waste handling ofthis product. For more detailed information about recycling of this product, please contact13216 Disposal