Technical Information
4
CVA 4062/CVA 4066/CVA 4068 Coffee Systems
2 Function ............................................................................................................... 74
2.1 Water Tank ................................................................................................... 74
2.2 Filling the Water Tank ................................................................................... 74
2.2.1 Manually Filling the Water Tank .............................................................. 74
2.2.2 Automatically Filling the Water Tank (CVA 4066 Models Only) .............. 75
2.3 Filling the Beans Container........................................................................... 75
3 Fault Repair ......................................................................................................... 76
3.1 Milk Container Not Registered as Empty ...................................................... 76
3.2 Milk Container Present But Not Registering ................................................. 76
4 Service ................................................................................................................ 76
4.1 Rinsing the Milk Pipework ............................................................................. 76
4.2 Cleaning the Milk Pipework .......................................................................... 76
4.3 Cleaning the Stainless-Steel Milk Container ................................................. 77
4.4 Descaling the Appliance ............................................................................... 77
070 Electronic Modules ........................................................................................... 78
2 Function ............................................................................................................... 79
2.1 Machine Response after Power Supply Interruption ..................................... 79
2.2 Software IDs ................................................................................................. 79
3 Fault Repair ......................................................................................................... 79
3.1 F1 -- Coffee/Hot Water NTC (2R30) Short-Circuited .................................... 79
3.2 F2 -- Coffee/Hot Water NTC (2R30) Open-Circuited .................................... 79
3.3 F3 -- Steam NTC (1R30) Short-Circuited...................................................... 80
3.4 F4 -- Steam NTC (1R30) Open-Circuited ..................................................... 80
3.5 F10 -- No Water Intake ................................................................................. 81
3.6 F17 -- Insufficient Water Intake ..................................................................... 81
3.7 F28 -- Too Much Ground Coffee in Brew Unit .............................................. 82
3.8 F41 -- EEPROM Faulty/Data Fault ............................................................... 83
3.9 F42 -- Line Frequency Not Registered ......................................................... 83
3.10 F47 -- No Communication Between Control and Power Electronics ............. 83
3.11 F73 -- Brew Unit Fault .................................................................................. 83
3.12 F74 -- Ceramic Valve Fault ........................................................................... 84
3.13 F76 -- Fault during Pressing in Brew Unit ..................................................... 85
3.14 F77 -- Ceramic Valve Initialization Fault ....................................................... 85
3.15 F80 -- Coffee/Hot Water Heater (2R1) Not Heating ...................................... 85
3.16 F81 -- Steam Heater (1R1) Not Heating ....................................................... 85
3.17 F82 -- Coffee/Hot Water Heater (2R1) Overheating ..................................... 86
3.18 F83 -- Steam Heater (1R1) Overheating ...................................................... 86
3.19 F94 -- Water Intake Fault .............................................................................. 86
3.20 "Replace Drip Tray" Message, Even Though Drip Tray Is Inserted .............. 87
3.21 "Empty Drip Tray" Message, Even Though Drip Tray Is Not Full .................. 87
3.22 "X Servings until Descaling" Shown in Display ............................................. 88
3.22 “Empty Waste Container” Message, But Waste Container Is Not Full .......... 88
3.23 “Clean Brew Unit” Message Not Displayed ................................................... 88
3.24 Descaling Is Interrupted ................................................................................ 89
3.25 “Fit Jets in Central Spout” Message Displayed ............................................. 89
3.26 “Fit Cover over Central Spout” Message Displayed ...................................... 89
4 Service ................................................................................................................ 89
4.1 Customer Programming Mode ...................................................................... 89
4.2 Service Programming Mode ......................................................................... 93
4.3 Service Mode ................................................................................................ 95
4.4 Power Electronic EPL (N4) Removal .......................................................... 100
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