DeLonghi EC270 Owner Manual - Page 11

EN DESCALING We recommend that you descale the coffee maker about every 200 coffees. Use specific products for descaling espresso machines available on the market. If you cannot find these products, it is possible to use the following procedure: 1.Fill the water tank with 34 fl oz. (1 liter) of water. 2.Dissolve 2 teaspoons (about 1oz./30 grams) of citric acid (sold at drugstores) in the water. 3.Press the On/Off button to turn on the machine (the button lights up) (Fig. 4) and wait for the light to come on. 4.Make sure that the filter-holder is not attached and place a container under the boiler outlet. 5.Press the coffee button (Fig. 6) and let out about 1/4 of the solution in the tank. Every now and then, turn the steam knob to let out a little of the solution, then press the button to stop and leave the solution to work for about 5 minutes. 6.Repeat step 5 three more times until the tank is completely emptied. 7.To eliminate solution and lime scale residues, rinse the tank thoroughly, fill it with clean water (without dissolving citric acid), and replace the tank. 8.Press the coffee button and let the water run through until the tank is completely empty. 9.Repeat steps 7 and 8 one more time. Repair of damage to the coffee machine caused by lime scale is not covered by the warranty if descaling is not performed regularly as described above. 11