DeLonghi ESAM3300 Owner Manual - Page 17

• after around 30 minutes, when the light comes on (section 12 - point 1), turn the steam knob half a turn clockwise (Fig.6) until it stops. The machine must be rinsed so as to eliminate the residues of descaling solution from inside the machine. Proceed as follows: • remove the water tank, rinse it and fill it with clean water. • reposition the tank. • empty the collection container (located under the milk frother) that is full of liquid, and then replace it under the milk frother. • turn the steam knob half a turn counter-clockwise (Fig. 5). Hot water will come out of the milk frother and fill the container underneath. • when the tank is empty, the l ight goes off and the light comes on (section 12 - point 1). • turn the steam knob all the way clockwise (Fig. 6) and fill the water tank with clean water again. • the program of descaling is now terminated and the machine is ready to make coffee again. NOTE: if the descaling procedure is interrupted before completion, the alarm (section 12 - point 5) is not deactivated and the pro- cedure must be started again form the beginning. IMPORTANT: FAILURE TO DESCALE THE APPLIANCE REGULARLY INVALIDATES THE WARRANTY. 10.4 SETTING THE WATER HARDNESS The light (section 12 - point 5) switches on after after the machine has been operated for a factory set period of time calculated on the basis of the maximum quantity of lime scale which may be contained in the water used. If necessary, this period of operation can be extended, thus making the descal- ing operation less frequent, by programming the machine based on the actual lime content in the water used. Proceed as follows: • after having removed the "Total hardness test" strip (enclosed on page 2) from its packaging, dip it fully in the water for a few seconds, then pull it out and wait around 30 seconds (until it changes color anda number of squares are formed); • check that the machine is off (all the indicator lights are off); • press the button (Fig. 14) and hold it for at least 5 seconds. The four lights , , and come on. • press the button (Fig.18) repeatedly until the number of lights that are on coincides with the number of red squares on the test strip (for example, if there are 3 red squares on the test strip, press the button until 3 indi- cator lights come on together, , and ). • press the button (Fig. 14) to save the data. The coffee maker is now programmed to provide the descaling warning when effectively necessary, based on the actual hardness of the water. 17 OPERATING INSTRUCTIONS