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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
Function 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
