16.7 Resetting factory default settings (reset)If you change the original values, the factory default values can be reset as follows:• Press the button then press repeatedly until the appliance displays:RESET TO DEFAULT NO• Press the button and the appliance displays "RESET TO DEFAULT YES:• Press the button to reset the factory default values;• The appliance is now reset to the factory default settings and the READY message is displayed.16.8 Washing processThis function can be used by technical service personnel only.17 CHANGING THE LANGUAGETo change the language, press the button for at least 5 seconds until the appliance displays theinstallation message in various languages. To select the required language, follow the instructions in section4.1 :18 MEANING OF MESSAGE DISPLAYED AND WHAT TO DO36ADD PRE-GROUNDCOFFEE• With the function selected, the pre-ground coffee has not been poured intothe funnel.• Add the ground coffee as described insection 9.FILL BEANS CONTAINER• The coffee beans have run out.• If the coffee grinder is very noisy, thismeans a small stone in the coffee beanshas blocked the mill.• Fill bean container• Contact an authorised De' Longhi servi-ce centreDESCALE • This indicates the presence of lime scalein the appliance.• The descaling procedure, described insection 16.3, needs to be performed assoon as possible.MESSAGE MEANING WHAT TO DOFILL TANK• The water tank is empty or is positionedincorrectly.• The tank is dirty or encrusted with limescale.• Fill the water tank as described in sec-tion 6, note 6 and insert it fully.• Rinse or descale the tank.GROUND TOO FINE ADJUST MILLAND• The appliance cannot make coffee • Insert the hot water spout, press thebutton and run off water from the spoutfor a few seconds.INSERT WATER SPOUT ANDPRESS OK• The coffee runs off too slowly. • Turn the grinding regulator (fig. 12) oneclick clockwise (see section 8).EMPTY GROUNDS CONTAINER • The grounds container is full or missing. • Empty the grounds container and cleanas described in section 6, note 7, thenreplace.INSERT GROUNDS CONTAINER • After cleaning, the grounds containerhas not been replaced.• Open the service door and insert thegrounds container.