Krups EF 472, Руководство по обслуживанию

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Service Manual EF 472
2
C O N T E N T S
1 Preface
.................................................................................................................. 3
2 Structure
............................................................................................................... 4
2.1 Overview of the rating plates.............................................................................. 4
2.2 Overview ............................................................................................................ 6
2.3 Water circuit ....................................................................................................... 7
2.4 Technical data.................................................................................................... 8
3 Operations
........................................................................................................... 9
3.1 Filling the water system...................................................................................... 9
3.2 Making a cup of coffee ..................................................................................... 10
3.3 Programming the fill level................................................................................. 11
3.4 Resetting the fill level to the factory default...................................................... 11
3.5 Emptying the water system .............................................................................. 12
3.6 Light signals ..................................................................................................... 13
4 Troubleshooting
............................................................................................... 14
4.1 Check list.......................................................................................................... 14
5 Repairs
................................................................................................................ 16
5.1 Tools and accessories ..................................................................................... 16
5.2 General disassembly........................................................................................ 16
5.3 Replacing the compact brewing unit ................................................................ 22
5.4 Replacing the thermoblock, NTC­temperature sensor and fine wire fuse(s) ... 23
5.5 Replacing the pump with the fine wire fuse...................................................... 24
5.6 Replacing the flow meter.................................................................................. 26
5.7 Replacing the mainboard with the button prints ............................................... 27
5.8 Replacing the on/off switch and/or the mains cable......................................... 28
5.9 Wiring diagrams ............................................................................................... 29
6 Function tests
................................................................................................... 32
6.1 Measure flow rate............................................................................................. 32
6.2 Pressure and leakage checks .......................................................................... 33
6.3 Measuring the coffee temperature ................................................................... 36
7 Maintenance
...................................................................................................... 37
7.1 Descaling ......................................................................................................... 37
7.2 Daily maintenance, cleaning ............................................................................ 39
8 Spare parts
......................................................................................................... 40