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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. Pour into the tank the descaling product following the in-
structions in the package. Fill the tank with water up to the
"max" level for the correct dilution.
2. The "Espresso ON/OFF" button (fig. 12) light should be kept
OFF.
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. While the machine starts dispensing water, open once
steam knob 2-3 seconds to discharge a little water from
the frother system.
The clock will switch to a countdown (27 min) during the
process and will revert back after the end of descaling.
The steam button (B3) will blink until the end of descaling.
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.
While the machine starts dispensing water, open once
steam knob 2-3 seconds to discharge a little water from
the frothing system.
8. Repeat operations 6 and 7 again.
If descaling is not performed regularly as required, the warranty
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.
(B3) will
(B3) for at least 6 sec.
12
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.
1. Remove the antichlo rine filter and pour into the tank the des-
caling product following the instructions in the package;
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. During the descaling cycle the "BOLD" led will blink.
The clock will switch to a countdown (27 min) during the
process and will blink until the end of descaling.
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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