ServicemanualEF702/705
3
4.4 Descaling ......................................................................................................... 45
4.4.1 Accessory ............................................................................................... 46
4.4.2 Safetyinstructions .................................................................................. 46
4.4.3 Preparation ............................................................................................. 47
4.4.4 DescalingandrinsingprocedureforCS220 ........................................... 48
4.4.5 DescalingandrinsingprocedureforCS200 ........................................... 54
4.5 Extractionunitmaintenance............................................................................ 59
4.5.1 Securitycheck ........................................................................................ 59
4.5.2 Wearingparts ......................................................................................... 60
4.5.3 Lubricationofextractionunit................................................................... 61
5 Troublesh ooting............................................................................................... 63
5.1 Checklist ......................................................................................................... 63
5.2 DiagnosticwithServiceStick........................................................................... 64
5.2.1 Functiontestmenu ................................................................................. 64
5.2.2 Statisticdata ........................................................................................... 65
5.3 Errormessages............................................................................................... 66
5.3.1 Descalingneededcallservicecenter ................................................... 66
5.3.2 Capsulenotejectedcallservicecenter................................................ 67
5.3.3 Machineblockedcallservicecenter..................................................... 68
5.4 Driptraydisplaymessages.............................................................................. 69
5.5 Coffeecapsulefallsthrough ............................................................................ 69
5.6 Onlyhotwaterduringcoffeepreparation......................................................... 70
5.7 Noortoolesssteamformilkpreparation ........................................................ 70
5.8 Noisyextractionunit........................................................................................ 70
5.9 Directwaterconnectionproblems.................................................................... 71
6 Repairs............................................................................................................... 73
6.1 Safetyinstructions........................................................................................... 73
6.1.1 Securitycheck ........................................................................................ 73
6.2 General ........................................................................................................... 74
6.2.1 Repairandmountingtips........................................................................ 74
6.2.2 Toolsandaccessories ............................................................................ 75
6.2.3 Overviewofpluginmodules .................................................................. 76
6.3 Generaldisassembly ....................................................................................... 77
6.3.1 Openingthecasing................................................................................. 77
6.4 Coffeepump/flowmetermodule .................................................................... 79
6.4.1 Removingcoffeepump/flowmetermodule .......................................... 79
6.4.2 Replacingcoffeepump ........................................................................... 80
6.4.3 Replacingthermostatofcoffeepump ..................................................... 81
6.4.4 Replacingflowmeter .............................................................................. 82
6.4.5 Replacingleft/rightcontactbank.......................................................... 83
6.5 Extractionunit .................................................................................................. 84
6.5.1 Replacingwornparts .............................................................................. 84
6.5.2 Replacingextractionunit ........................................................................ 86
6.5.3 Replacingmotorandspindleofextractionunit....................................... 87
6.5.4 Replacingsafetylidwithmicroswitch .................................................... 88
6.6 Hotwater/steammodule(CS220only) .......................................................... 90
6.6.1 Removingdisplaywithlogicmodul......................................................... 90
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