47
ENGLISH
DEFECT
CAUSE
SOLUTION
4.
The machine was started
properly but one or more
brewing group boilers
does not warm up.
t5IFIFBUJOHFMFNFOUPGUIF
brewing group is defective or
not connected.
t5IFCSFXJOHHSPVQJTTFUUP
OFF.
t5IFNBJOTXJUDINVTUCFUVSOFEUP
position 2.
t$IFDLUIBUOPOFPGUIFCSFXJOH
groups are set to OFF.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must check the electrical wires
powering the heating element.
Moreover, it is important to check
whether the thermostat tripped the
heating element safety and to check
its correct operation.
5.
/PXBUFSEFMJWFSZGSPNB
brewing group.
t5IFHSPVOEDPGGFFJTUPPýOF
or there is too much coffee for
the type of filter used.
t5IFTPMFOPJEPGBCSFXJOH
group doesn’t open because
it’s faulty.
t8BUFSDJSDVJUKBNNFE
t"EKVTUUIFHSJOEJOHBOEPSRVBOUJUZPG
coffee ground.
t$IFDLUIBUUIFþPXNFUFSWBMWFTBSF
in the “open” position.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must check the flow meters and their
valves.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must check the brewing group
solenoid, its wiring and the fuse in
the electronic control unit.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must inspect and check that the
water circuit is not obstructed or
whether a pump fault is possible.
6.
The programmed espresso
coffee doses are not
constant or vary across the
different brewing groups.
t"COPSNBMPQFSBUJPOPG
electronic control unit or flow
meters.
t#SFXJOHHSPVQTPMFOPJEMFBL
t5IFXBUFSOP[[MFTBSFDMPHHFE
t1SPHSBNNFUIFEPTFTTFQBSBUFMZPO
each of the brewing groups.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must check, and if necessary
replace, the group’s flow meter.
Check and if necessary replace the
group’s solenoid. Check the water
nozzles.
7.
It is not possible to
programme the dose
quantities on group 1 and
copy them to the other
groups.
t"COPSNBMPQFSBUJPOPG
electronic control unit or flow
meters.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must check the electrical wiring
between the control unit and the
flow meters and replace them if
necessary.
8.
Flow meter alarm.
t5IFþPXNFUFSTBSFCMPDLFEPS
not working.
t5IFFMFDUSJDBMXJSJOHJT
defective.
t5IFBVUIPSJ[FERVBMJýFEUFDIOJDJBO
must check the electrical wiring
between the control unit and the
flow meters and replace them if
necessary.
Содержание 20/20 CLASSIC Series
Страница 2: ...ITALIANO USO E MANUTENZIONE SERIE 20 20 CLASSIC Istruzioni originali ...
Страница 9: ...8 ITALIANO 2 2 Schema generale del sistema idraulico ...
Страница 28: ...ENGLISH USE AND MAINTENANCE 20 20 CLASSIC SERIES Draft of the original instructions ...
Страница 35: ...34 ENGLISH 2 2 General water system diagram ...
Страница 52: ...FRANÇAIS EMPLOI ET ENTRETIEN SÉRIE 20 20 CLASSIC Traduction des instructions originales ...
Страница 59: ...58 FRANÇAIS 4DIÏNB IZESBVMJRVF HÏOÏSBM ...
Страница 78: ...DEUTSCH BEDIENUNG UND WARTUNG SERIE 20 20 CLASSIC Übersetzung der Original Anleitungen ...
Страница 85: ...84 DEUTSCH 2 2 Allgemeiner Wasseranschlussplan ...