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5.
Cleaning and maintenance
** COFFEE CIRCUIT WASHING CYCLE
To be performed at the end of the working day or when
requested by the machine.
The machine will issue a message on the display "EXECUTE
WASHING GROUP 1".
This will be repeated until the operation is performed.
To perform the wash cycle, follow this procedure:
1) Using a brush, clean the cover gasket, as shown in figure 1.
2) Press and hold down the coffee circuit wash key (26); for
a few seconds. The message "INSERT GROUP 1 FILTER
HOLDER" will appear on the display.
3) Insert the rubber disk into the filter-holder with its filter
(fig. 2); pour in a packet or dosing cupful of detergent
powder (fig. 3).
4) Press the coffee circuit wash key (26). The Group 1 wash
cycle will start and the "GR1 WASH" message will appear
on the display.
5) At the end of the group 1 wash cycle, the message
"REMOVE GROUP 1 FILTER HOLDER" will appear.
6) Press the coffee circuit wash key (26). The message
"RINSE GR1" will appear.
7) At the end of the group 1 rinse cycle, the message "GROUP
2 WASH" will appear.
8) Repeat the operations described above for all machine
groups.
When the machine is blocked, a warning message appears
on the display: if the key corresponding to the requested wash
cycle is pressed (key 26 or 28) and the instructions on the
display are followed, the wash cycle is performed and the
machine is no longer blocked.
For example, if there is a "coffee block", the following message
appears on the display:
GROUP 1 LOCKED
EXECUTE WASHING
The number of the "blocked group" blinks on the display and
depends upon the number of machine groups.
Note: If no wash cycle messages appear and the machine
is used frequently, a wash cycle can be performed at any
time, using the methods described earlier:
- milk circuit washing cycle: pressing the (28) key;
- coffee circuit washing cycle: pressing the (26) key;
Note: once the wash cycle is underway, it CANNOT be
stopped, even if the machine is switched off.
If there is a power failure, when power is returned the
message "EXECUTE
displayed. Complete the cleaning operations as described
previously.
The wash cycles performed without request by the machine
can be interrupted by switching off and switching back on
the machine.
The wash cycle lasts about 7" for each group.
Programmed wash cycles that are not effected will be
memorized by the machine.
Block function
If the coffee wash circuit key is pressed (26), the previous
message will be integrated as shown:
When the "INSERT FILTER HOLDER - GROUP 1" message
appears, the block message for Group 1 disappears. The
block messages for groups still to be washed appear in
alternation.
At this point, please follow the steps described in the "**
COFFEE WASH CIRCUIT'" paragraph to perform the washing
cycle.
57
WASHING GROUP" will be
GROUP 1 LOCKED
EXECUTE WASHING
INSERT FILTER HOLDER
GROUP 1
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