To remove the dirt:1. – Remove immediately: melted plastic, plastic foil, and food with sugar. If not, thedirt can cause damage to the appliance. Use a special scraper for the glass . Put thescraper on the glass surface at an acute angle and move the blade on the surface .– Remove after the appliance is sufficiently cool: limescale rings , water rings, fatstains, shiny metallic discolorations. Use a special cleaning agent for glass ceramicor stainless steel.2. Clean the appliance with a moist cloth and some detergent.3. At the end rub the appliance dry with a clean cloth.WHAT TO DO IF…Problem Possible cause and remedyYou cannot activate the appli-ance or operate it.• Activate the appliance again and set the heat setting in 10seconds.• You touched 2 or more sensor fields at the same time. Onlytouch one sensor field.• The Child Safety Device or the Lock or Stop+Go operates. Seethe chapter Operating instruction.• There is water or fat stains on the control panel. Clean thecontrol panel.A Sound operates and the ap-pliance deactivates.A sound operates when the ap-pliance is deactivated.You put something on one or more sensor fields. Remove the ob-ject from the sensor fields.The appliance deactivates. You put something on the . remove object from the sensorfield.The residual heat indicator doesnot comes on.The cooking zone is not hot because it operated only for a shorttime. If the cooking zone should be hot, speak to the service cen-tre.The Automatic Heat Up func-tion does not operate.• There is still residual heat on the cooking zone. Let the cookingzone become sufficiently cool.• The highest heat setting is set. The highest heat setting has thesame power as the Automatic Heat Up function.The heat setting changes be-tween two levels.The Power management is activated. See the section Power man-agement.The sensor fields become hot. The cookware is too large or you out it too near to the controls.Put large cookware on the rear cooking zones if it is necessary.comes on The Automatic Switch Off operates. Deactivate the appliance andactivate it again.What to do if… 29