[. . . ] Do not ever heat canned foods without first having opened the can: they can explode!Do not use aluminium foil for cooking and do not place food wrapped in aluminium foil on the induction glass ceramic hob. Note: the cooking zones will not go on if the pots and pans are not of the correct dimensions or cannot be magnetically detected. [. . . ] Do not use abrasive powders or detergents, surface cleaning sprays, spot or rust removers, bleach, sponges with abrasive surfaces, or iron pan scourers. Clean the hob if possible after every use, when it is still warm or after it has cooled. Important Periodically check for dust under the appliance, near the cooling air inlet or the outlet openings. This could hinder the ventilation and cooling of the electronic module and decrease the effectiveness of the hob. Troubleshooting guide The induction glass ceramic hob is not working: • Have you pressed the control buttons following the instructions in the section “using the hob”?If a cooking zone has been selected and an “F”, appears on the display contact the After Sales Service and inform them. If one of the following codes is displayed when the hob on button is pressed: E -13 E-22 E-27 E-28 E-29 contact the After Sales Service and give them the code. If the booster does not work, the temperature inside the hob is too high. Wait a few minutes until the cooking zone cools off or continue cooking without the booster (max. Cooling fan The hob is equipped with a cooling fan which runs at two speeds, depending on the temperature in the hob. If the hob reaches a level which exceeds the power of all the hot plates, it is automatically reduced, or if necessary, the entire hob is deactivated. After a certain period of time, the hob automatically returns to the selected temperature. If you are not able to turn the induction glass ceramic hob off after using it, disconnect it immediately from the power supply. 16 4gb61451. fm5 Page 17 Tuesday, September 18, 2001 2:33 PM After Sales Service 1. Carefully read the troubleshooting guide, to see if it is possible to solve the problem. Describe the fault, give the number of the model on the rating plate, the service number of your hob, your address and telephone number. If any repairs are required, please contact an authorised After Sales Service as indicated in the warranty. [. . . ] Make sure that the voltage indicated on the rating plate corresponds to the voltage in your home. Regulations require that the appliance is earthed; for this reason all conductors and earth conductor must be of the appropriate size. The manufacturer declines all liability for injury to persons and animals or damage to property resulting from failure to observe the above regulations. [. . . ]