La San Marco 20/20 CLASSIC Series, Use And Maintenance

Page: 51 / 104

50
ENGLISH
DEFECT CAUSE SOLUTION
21. Coffee grounds in the
cup.
a) Coffee grinding too fine.
b) Grinders of coffee grinder
worn.
c) Pump pressure above 9 bar.
d) Filter holes on brewing group
are clogged.
e) Filter holes are clogged
(portafilter).
a) Increase coffee grinding size.
b) Replace grinders (this operation can
only be performed by authorized
qualified technicians).
c) Decrease pump pressure (this
operation can only be performed by
authorized qualified technicians).
d) Check and clean the brewing group
using portafilter with blind filter or
replace filter.
e) Check and replace filter of the
portafilter.
22. Coffee with too little
cream in cup (spurts out
of spout).
t5IFýMUFSJOHIPMFTPGUIF
brewing group are clogged.
t$IFDLBOEDMFBOUIFCSFXJOHHSPVQ
using the portafilter with blind filter
or replace the filter.
23 The cream in the cup is
too thin (it disappears
after a few seconds).
t$PGGFFFYUSBDUJPOUBLFTB
long time due to the clogged
brewing group filter.
t$PGGFFFYUSBDUJPOUBLFTB
long time due to the clogged
portafilter filter.
t8BUFSUFNQFSBUVSFUPPIJHI
t$IFDLBOEDMFBOUIFCSFXJOHHSPVQ
using the portafilter with blind filter
or replace the filter.
t$IFDLBOESFQMBDFUIFýMUFSPGUIF
portafilter.
t3FEVDFUIFUFNQFSBUVSFPGUIF
brewing group.
24. Depressions in the coffee
grounds (looking inside
the portafilter).
t#SFXJOHHSPVQýMUFSQBSUJBMMZ
clogged.
t$IFDLBOEDMFBOUIFCSFXJOHHSPVQ
using the portafilter with blind filter
or replace the filter.
Note:
*GUIFQSPCMFNDBOOPUCFTPMWFEBTEFTDSJCFEBCPWFPSJGPUIFSNBMGVODUJPOTPDDVSDPOUBDUUIF-B4BO.BSDP
S.p.A. service centre.