Nespresso EF 451 C 111, Руководство по обслуживанию, Страница: 3 / 133

Citiz service manual
3
6.1.2 Milk preparation ...................................................................................... 36
6.1.3 At the end of repair ................................................................................. 37
6.1.4 Milk frother of model Citiz & milk ............................................................ 38
6.2 Descaling ......................................................................................................... 39
6.2.1 Descaling procedure for models Citiz and Citiz & milk ........................... 39
7 Troubleshooting
............................................................................................... 42
7.1 Check list for coffee machine (all models) ....................................................... 42
7.2 Check list for milk frother ................................................................................. 44
8 Repairs
................................................................................................................ 45
8.1 Safety instructions ........................................................................................... 45
8.2 Repair and mounting tips ................................................................................. 45
8.3 Tools and accessories ..................................................................................... 47
8.4 Platform disassembly - model Citiz.................................................................. 48
8.4.1 General disassembly .............................................................................. 48
8.4.2 Replacing water tank connector ............................................................. 51
8.4.3 Replacing power cord............................................................................. 53
8.4.4 Removing core unit................................................................................. 55
8.5 Platform disassembly - model Citiz & milk....................................................... 58
8.5.1 General disassembly .............................................................................. 58
8.5.2 Replacing water tank connector ............................................................. 62
8.5.3 Replacing milk frother connector ............................................................ 64
8.5.4 Replacing power cord............................................................................. 65
8.5.5 Removing core unit................................................................................. 67
8.6 Disassembly of core unit, C-range................................................................... 70
8.6.1 General disassembly .............................................................................. 70
8.6.2 Replacing compact brewing unit............................................................. 75
8.6.3 Replacing pump...................................................................................... 77
8.6.4 Replacing flow meter .............................................................................. 80
8.6.5 Replacing automatic priming device (APD) ............................................ 81
8.6.6 Replacing thermoblock with NTC sensor and fine wire fuse(s) .............. 83
8.6.7 Replacing electronic control board with button prints ............................. 86
8.7 Disassembly of core unit, D-range................................................................... 88
8.7.1 General disassembly .............................................................................. 88
8.7.2 Replacing electronic control board with button prints ............................. 95
8.8 Wiring diagrams............................................................................................... 97
8.8.1 Wiring diagrams - model Citiz................................................................. 97
9 Function tests
................................................................................................. 101
9.1 Safety instructions ......................................................................................... 101
9.2 Required equipment ...................................................................................... 101
9.2.1 Overview............................................................................................... 101
9.2.2 Citiz pressure gauge adapter ............................................................... 102
9.3 Measure flow rate .......................................................................................... 103
9.4 Pressure and leakage checks........................................................................ 104
9.4.1 Preparations ......................................................................................... 105
9.4.2 Test run................................................................................................. 106
9.5 Measure coffee temperature.......................................................................... 107