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14. DESCALING
Over time, calcium in the water may cause obstructions, reduc-
ing the efficiency of the coffee maker.
14.1 Descaling the espresso unit
It is recommended to descale the espresso maker when the
descaling notification flashes (the steam button
emit a double flashing light) and this will occur with every 200
espressos that are brewed. This notification will not prevent any
function.
The notification could be temporarily postponed by pressing
the espresso side push buttons. At the end of the next brew
cycle, if descaling has not been completed, the notification will
flash on the steam button. We recommend using commercially
available De'Longhi descaler.
Proceed as follows:
1. Fill the tank with the descaler solution (use sample provid-
ed in the package), obtained by diluting the descaler with
water following the instructions on the package.
2. Press the "Espresso ON/OFF" button (fig. 12) to turn the
machine on. The integrated light flashes.
3. Make sure the portafilter is not attached and position a
bowl under the boiler outlet.
4. Press and hold the steam button
This will start the automated Descaling Process.
5. The descaling process will take about 30 minutes to be
completed. In the meantime, the descaling button will
blink. While the machine starts dispensing water, open
once steam knob 2-3 seconds to discharge a little water
from the frother system.
6. To eliminate residues of solution and scale, rinse the tank
well, then fill it again with fresh water (without descaler).
7. Press the
button (fig. 15) and deliver water until the
tank is completely empty.
8. Repeat operations 6 and 7 again.
If descaling is not performed regularly as required. The warran-
ty will be void if the repair is a result of damage to the coffee
maker due to limescale.
14.2 Descaling the drip coffee unit
It is recommended to descale the coffee maker when the desca-
ling notification flashes (the Bold LED button will emit a double
flashing light) and this will occur with every 40 coffees that are
brewed. This notification will not prevent any function.
The notification could be temporarily postoned by touching any
touch icon of the drip side.
At the end of the next brew cycle, if descaling has not been com-
pleted, the notification will flash on the BOLD LED.
We recommend using commercially available DeLonghi descal-
er.
(B3) will
(B3) for at least 6 sec.
12
1. Remove the antichlorine filter and pour the descaling
product into the tank;
2. Fill the tank with water up to the "max" level for the correct
dilution;
3. Place the carafe on the warming plate;
4. Press and hold the "BOLD" touch icon for at least 6 seconds
to start the "descaling" cycle.
5. The "descaling" cycle will take about 30 minutes. During
the descaling cycle the "BOLD" led will blink.
6. Rinse at least 3 times by operating the machine with water
only (i.e. as in 7.5, but without coffee)
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