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8.
MAINTENANCE AND CLEANING
Safety precautions
8.1
Carefully read the instructions provided in chapter
"1. SAFETY PRECAUTIONS" on page 39 .
Periodic maintenance
8.2
In addition to performing the following maintenance
operations at the specified frequency, have a Qualified
Technician perform an overall inspection of the machine
whenever prompted by the warning on the display, as
indicated in para. 8.3 on page 68.
Component
Type of operation
Keep the heating unit pressure between 0.08 and 0.14 MPa (0.8 and 1.4
DISPLAY
bar).
Check the water pressure when coffee is being dispensed: check the pres-
DISPLAY
sure indicated on the gauge, which must be between 0.8 and 0.9 MPa (8
and 9 bar).
Check the condition of the filters. Check for any damage on the edge of
FILTERS AND FILTER
the filters and check whether any coffee grounds settle in the coffee cup,
HOLDERS
and replace the filters and/or filter holders, as required.
Check the ground coffee dose (between 6 and 7 grams per time) and
check the degree of grinding. Grinders must always have sharp cutting
edges. Too much powder in the grounds is an indication that the coffee is
deteriorating. We recommend contacting a Qualified Technician to replace
GRINDER-DISPENSER
the flat burrs after every 400/500 kg of coffee, or after every 800/900 kg
for conical burrs.
If the automatic grinder wear warning is enabled, follow the instructions
in para. 8.4 on page 68 .
Replace the water filter cartridge or regenerate the water softener at the
WATER FILTER
frequency indicated by the manufacturer or whenever the automatic
WATER SOFTENER
regeneration warning is displayed (see para. 8.5 on page 68).
We recommend that you call out the Technical Assistance at least once
HEATING UNIT
every three months to replace the water in the heating unit.
Component problems highlighted in grey require the machine to be
switched off and one of the Qualified Technicians to be called out.
USER Manual
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