Citizservicemanual
3
6 Maintenance ...................................................................................................... 38
6.1 Dailymaintenanceandcleaning ...................................................................... 38
6.1.1 Beforefirstcoffeeoratthestartofday.................................................. 38
6.1.2 Afterlastcoffeeorattheendofday....................................................... 39
6.1.3 MilkfrotherofmodelCitiz&milk ............................................................ 40
6.2 Descaling ......................................................................................................... 41
6.2.1 DescalingprocedureformodelsCitizandCitiz&milk ........................... 41
6.2.2 DescalingprocedureformodelCitiz&Co.............................................. 45
7 Troubleshooting ............................................................................................... 49
7.1 Checklistforcoffeemachine(allmodels) ....................................................... 49
7.2 Checklistformilkfrother ................................................................................. 51
8 Repairs............................................................................................................... 52
8.1 Safetyinstructions........................................................................................... 52
8.2 Repairandmountingtips ................................................................................. 52
8.3 Toolsandaccessories ..................................................................................... 55
8.4 PlatformdisassemblymodelCitiz.................................................................. 56
8.4.1 Generaldisassembly .............................................................................. 56
8.4.2 Replacingwatertankconnector ............................................................. 59
8.4.3 Replacingmainsswitch .......................................................................... 60
8.4.4 Replacingpowercord ............................................................................. 62
8.4.5 Removingcoreunit................................................................................. 64
8.5 PlatformdisassemblymodelCitiz&milk ....................................................... 67
8.5.1 Generaldisassembly .............................................................................. 67
8.5.2 Replacingwatertankconnector ............................................................. 71
8.5.3 Replacingmilkfrotherconnector ............................................................ 73
8.5.4 Replacingmainsswitch .......................................................................... 74
8.5.5 Replacingpowercord ............................................................................. 75
8.5.6 Removingcoreunit................................................................................. 77
8.6 PlatformdisassemblymodelCitiz&Co......................................................... 80
8.6.1 Generaldisassembly .............................................................................. 80
8.6.2 Replacingwatertankconnector ............................................................. 84
8.6.3 Replacingmainsswitch .......................................................................... 85
8.6.4 Replacingpowercord ............................................................................. 87
8.6.5 Removingcoreunits ............................................................................... 89
8.7 Disassemblyofcoreunit,Crange................................................................. 91
8.7.1 Generaldisassembly .............................................................................. 91
8.7.2 Replacingcompactbrewingunit............................................................. 96
8.7.3 Replacingpump...................................................................................... 98
8.7.4 Replacingflowmeter ............................................................................ 101
8.7.5 Replacingautomaticprimingdevice(APD) .......................................... 102
8.7.6 ReplacingthermoblockwithNTCsensorandfinewirefuse(s) ............ 104
8.7.7 Replacingelectroniccontrolboardwithbuttonprints ........................... 107
8.8 Disassemblyofcoreunit,Drange............................................................... 109
8.8.1 Generaldisassembly ............................................................................ 109
8.8.2 Replacingelectroniccontrolboardwithbuttonprints ........................... 116
8.9 Wiringdiagrams ............................................................................................. 118
8.9.1 WiringdiagramsmodelCitiz............................................................... 118
8.9.2 WiringdiagramsmodelCitiz&milk,EF 485 /486 ............................. 124
8.9.3 WiringdiagramsmodelCitiz&Co,EF487/488 ............................... 128