29Error messagesYou can take remedial action yourself for some errormessages.Replacing the cooking compartment bulbYou can replace the cooking compartment bulb. Heat-resistant25 watt, 240 V halogen bulbs can be obtained from the after-sales service or from a specialist retailer.: Risk of electric shock!Never replace the oven light when the appliance is switched on.Pull out the mains plug or switch off the appliance at the circuitbreaker in the fuse box.Note: Always remove the new halogen bulb from the packagingusing a dry cloth. This increases the service life of the bulb.MethodNote: You must remove the whole appliance in order to replacethe cooking compartment light. Follow the installationinstructions.1. Unplug the appliance from the mains or switch off the circuitbreaker in the fuse box.2. Open the appliance door.Undo the securing screws on the right and left-hand side ofthe oven. Follow the installation instructions.3. Carefully lift out the appliance.4. Undo the screw from the light cover on the outer left-handside wall and remove the cover. (Fig. A) Pull out the halogenlight. (Fig. B).5. Insert the new halogen bulb (Fig. C)6. Screw the lamp cover in place.Reassemble the appliance in the reverse order.7. Switch the circuit breaker in the fuse box back on or plug inthe mains plug.Replacing the glass coverIf the glass cover in the oven is damaged, it must be replaced.You can obtain covers from the after-sales service. Pleasesupply your appliance's E number and FD number.After-sales serviceOur after-sales service is there for you if your appliance needsto be repaired. We will always find the right solution in order toavoid unnecessary visits from a service technician.E number and FD numberWhen calling us, please give the product number (E no.) andthe production number (FD no.) so that we can provide you withthe correct advice. The rating plate bearing these numbers canbe found in the oven. You can make a note of the number ofyour appliance and the telephone number of the after-salesservice in the space below to save time should it be required.Please note that there will be a fee for a visit by a servicetechnician in the event of a malfunction, even during thewarranty period.Please find the contact data of all countries in the enclosedcustomer service list.Error message Possible cause Remedy/NoteError message "Er1", "Er4", "Er18" or "E305"appears in the display.Technical malfunction. Call the afterаsales service.Error message "Er11" appears in the dis-play. "Button jammed"The buttons are dirty or the mechanismhas jammed.Press all the buttons several times. Cleanthe buttons with a dry cloth. Open andclose the appliance door. If this does nothelp, consult the after-sales service.E no. FD no.After-sales service O