La San Marco NEW 105 T 2, Use And Maintenance

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PRoBlEM CaUSE SolUtion
19. • Dark cream (the coffee
drips out of the spout).
• Fine grinding.
• high pressing pressure.
• Large quantity of ground
coffee.
• excessive temperature.
• Pump pressure below 9 bar.
• Sprinkler filter on unit clogged.
• Filter holes clogged (filter cup).
• Coarser grinding.
• Reduce the pressure.
• Decrease the quantity of ground
coffee.
• Adjust valve (flow variator) of the
group to a lower number or decrease
boiler pressure.
• Increase the pump pressure.
• Check and clean with blind filter or
replace.
• Check and replace filter.
20. • 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.
21. • Coffee with too little
cream in cup (spurts out
of spout).
• Sprinkler filter on unit clogged. • Check and clean with blind filter or
replace.
22 • 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.
23. • Presence of depressions
in the coffee grounds
(looking inside the filter
cup).
• Sprinkler filter partly clogged. • Clean or replace the sprinkler filter.
Note:
If the problem cannot be solved as described above, or if another malfunction has arisen, contact an author-
ised LA SAN MARCO SPA service centre for assistance.