Nespresso Essenza C91 - Default Chapter; Table of Contents

2
ServiceManualC91/D91 enVersion1.0
Contents
Preface ______________________________________________3
General_____________________________________________3
Nespressotechnicalwebsite_____________________________3
Contentupdates ______________________________________3
GeneralSafetyNotes________________________________4
MainComponents ___________________________________5
Overview ____________________________________________5
Overviewofratingplates________________________________6
Watercircuit _________________________________________7
Technicaldata ________________________________________8
Operation___________________________________________9
Preparation__________________________________________9
Fillwatersystem_____________________________________10
Makingcoffee _______________________________________11
Emptywatersystem __________________________________12
Coffeemachinestatus_________________________________13
Troubleshooting____________________________________14 
Checkingthemachineonreceipt ________________________14
Repair______________________________________________16
Safetyinstructions____________________________________16
Generaldisassembly__________________________________16
ReplacingNTC ______________________________________17
Replacingthermoblock________________________________18
Replacingpump _____________________________________19
Replacingelectroniccontrolboardwithbuttonprints_________20
Replacingcompactbrewingunit_________________________ 21
WiringdiagramEurope(230V/50Hz)___________________ 22
Func tionTests _____________________________________23
Measuringflowrate(1) ________________________________23
Measuringflowrate(2) ________________________________24
Checkingforleaksandpumppressure(1)_________________ 25
Checkingforleaksandpumppressure(2)_________________ 26
Measuringcoffeetemperature___________________________ 27
Protectiveearthcontinuitytest(1) ________________________ 28
Protectiveearthcontinuitytest(2) ________________________ 29
Protectiveinsulationtest( 1) ____________________________30
Protectiveinsulationtest( 2) ____________________________31
Protectiveinsulationtest( 3) ____________________________32
Maintenance________________________________________ 33
Descaling(1)________________________________________ 33
Descaling(2)________________________________________ 34
Dailycareandfinalcleaning____________________________35
SpareParts_________________________________________ 37
Repairaccessories ___________________________________ 37
SparepartsC91______________________________________ 38
Notes ______________________________________________40