La San Marco NEW 105 3, Use And Maintenance

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44
En
G
li
SH
PRoBlEM CaUSE SolUtion
21.
• Presence of grounds in
coffee cup.
• Coffee ground too fine.
• Worn grinders in grinder-
dispenser unit.
• Pump pressure above 9 bar.
• Sprinkler filter on unit clogged.
• Filter holes widened (filter
cup).
• Coarser grinding.
• Replace the grinders.
• Decrease the pump pressure.
• Check and clean with blind filter or
replace.
• Check and replace filter.
22.
• Coffee with too little
cream in cup (spurts out
of spout).
• Sprinkler filter on unit clogged. • Check and clean with blind filter or
replace.
23
• The cream in the cup is
too thin (it disappears
after a few seconds).
• Coffee extraction takes a long
time due to clogged filter.
• Coffee extraction too fast due
to clogged sprinkler filter.
• Water temperature too high.
• Clean or replace the filter.
• Clean or replace the sprinkler filter.
• Lower the temperature in the boiler.
• Adjust valve (flow variator) of serving
group.
24.
• Presence of depressions
in the coffee grounds
(looking inside the filter
cup).
• Sprinkler filter partly clogged. • Clean or replace the sprinkler filter.
Note:
If it is not possible to solve the problem as described above, or if other malfunctions develop, contact the
authorized La San Marco service centre.