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CVA 4068
Miele CVA 4068 Technical Information
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Technical Information
44
CVA 4062/CVA 4066/CV
A 4068 Coffee Sy
stems
6.
Open the service door. See Figure 030-12.
7.
Unsnap the cover containing the microswitches and the double-cam element.
8.
Disconnect the appropriate microswitch's wiring harness.
9.
Release the microswitch from its retaining tabs to remove.
43
45
Table of Contents
Default Chapter
2
Table of Contents
2
Warning and Safety Instructions
8
General
8
Risk of Burning or Scalding
8
Touch Current Measurement
9
Plumbing Information
9
Figure A-1: Compression Fitting
9
Before the First Use
10
Cleaning in the Dishwasher
10
B Modification History
10
Technical Data
11
Table C-1: Technical Data
13
D Component Layouts
14
Front View
14
Figure D-1: Front View of Appliance
14
Interior View
15
Figure D-2: Interior View of Appliance
15
Electrical Components
16
Cva 4062, Cva 4068
16
Figure D-3: CVA 4062, CVA 4068 Component Layout
16
Cva 4066
17
Figure D-4: CVA 4066 Component Layout
17
Housing
18
Service
19
Removing the Appliance from a Cabinet
19
Figure 010-1: Removing the Appliance from a Cabinet
19
Installation
20
Installation Procedure
20
Figure 010-2: CVA 4066 Plumbing
20
Figure 010-3: CVA Feet Adjustment
21
Figure 010-4: CVA Mounting Locations
21
Adjusting the Door Hinges
22
Figure 010-5: Door Hinge Adjustment
22
Exterior Side Panels
23
Door Inner Panel
24
Coffee/Hot-Water Dispenser
25
Function
26
Adjusting the Dispenser Height
26
Fault Repair
26
Coffee or Espresso too Cold
26
Milk Froth Unsatisfactory or Sputtering
26
Figure 021-1: Dispenser Height Adjustment
26
Door Outer Panel, Control/Display Electronic
28
Function
29
Optical Interface (MDU)
29
Control/Display Electronic EPWZ (N5)
29
Touch Controls
29
Fault Repair
29
Diagnostic Support Cannot Establish a Connection
29
Figure 025-1: Optical Interface for Diagnostic Support and Program Updating
29
Remotevision Infocontrol: Incorrect Language Set
30
Remotevision Infocontrol: Time of Day Setting Varies
30
Remotevision Infocontrol: Buzzer Inoperative
30
Remotevision Infocontrol: Data Transfer Interference
30
Remotevision Infocontrol: Mobile Receiver Display Faulty
30
Machine Runs Automatically and Chirps When the Door Is Opened
30
Service
30
Control/Display Electronic EPWZ (N5) Removal
30
Figure 025-2: Right and Central Covers
31
Figure 025-3: Hose and Wire Connections
31
Figure 025-4: Main Dispenser Retaining Screws
32
Figure 025-5: Control/Display Electronic Cover and Power Electronic Connection
32
Dispenser Present Switch (S87/6) Removal
33
Dispensing Area Light (1H3, 2H3) Removal
33
Door Removal
33
Figure 025-6: Control/Display Electronic Connections
33
Figure 025-7: Door Hinge Screws
34
Drive, Brew Unit
35
Function
36
Brew Unit Control
36
Microswitch Locations
36
Electronic Grind Amount Compensation
36
Figure 030-1: Brew Unit Microswitches
36
Figure 030-2: Brew Unit Switching Cam, Ground Quantity Compensation Microswitch
37
Figure 030-3: Measurable Volume Areas 1, 2 and 3
37
Table 030-1: Switch Cam Settings
37
Brew Unit Drive, Home Position
38
Figure 030-4: Selectable Volume Areas 1, 2 and 3
38
Figure 030-5: Home Position, Rear View
38
Figure 030-6: Home Position, Front View
38
Brew Unit Drive, Compressing Position (Brew Position)
39
Brew Unit Drive, Drain Position
39
Figure 030-7: Compressing Position, Rear View
39
Figure 030-8: Compressing Position, Front View
39
Fault Repair
40
Coffee Grounds Next to the Brew Unit
40
Figure 030-9: Drain Position, Rear View
40
Figure 030-10: Drain Position, Front View
40
Service
41
Brew Unit Drive (M26) Removal
41
Figure 030-11: Service Door Screws
41
Figure 030-12: Service Door Open
42
Figure 030-13: Brew Unit Removal
42
Removing the Grind Amount Compensation Microswitch (S51/4)
43
Removing the Brew Unit Position Microswitches (S60/1, S60/2)
43
Figure 030-14: Brew Unit Drive Retaining Screws
43
Grinder
45
Function
46
Adjusting the Grinder Setting
46
Filling Ground Coffee
46
Service
46
Grinder (M25) Removal
46
Figure 040-1: Grinder Adjustment
46
Figure 040-2: Ground Coffee Funnel and Lid
46
Figure 040-3: Service Door Screws
47
Figure 040-4: Service Door Open
47
Figure 040-5: Bean Container Guide Retaining Screws
48
Figure 040-6: Adjustment Lever Handle
48
Figure 040-7: Grinder Retaining Screws
49
Flow-Thru Heaters
50
Function
51
Steam System
51
Service
51
Removing the Coffee/Hot Water Heater (2R1)
51
Figure 050-1: Service Door Screws
51
Figure 050-2: Service Door Open, Showing Heaters
52
Figure 050-3: Coffee/Hot Water Heater
52
Removing the Temperature Limiter, Fuse, Temperature Sensor from the Coffee/Hot-Water Heater
53
Figure 050-4: Temperature-Regulating Components on Coffee/Hot Water Heater
53
Figure 050-5: Temperature-Regulating Components on Coffee/Hot Water Heater
53
Removing the Steam Heater (1R1)
54
Figure 050-6: Service Door Screws
54
Figure 050-7: Service Door Open, Showing Heaters
54
Figure 050-8: Steam Heater and Bracket
55
Figure 050-9: Temperature-Regulating Components on Steam Heater
55
Removing the Temperature Limiter, Temperature Sensor, Fuse from the Steam Heater
56
Figure 050-10: Temperature-Regulating Components on Steam Heater
56
Pumps, Solenoids, Flow Meters
57
Function
58
Water Paths
58
Overview
58
Figure 051-1: CVA Water Path - Overview
58
Water Path - Coffee
59
Water Path - Hot Water
59
Figure 051-2: Coffee Water Path
59
Water Path - Hot Milk
60
Figure 051-3: Hot-Water Path
60
Figure 051-4: Hot-Milk Path
60
Water Path - Milk Froth
61
Figure 051-5: Milk Froth Path
61
Service
62
Hot-Water Solenoid (Y61) Removal
62
Figure 051-6: Support Plate Retaining Screws
62
Figure 051-7: Rinsing and Hot-Water Solenoids
63
Figure 051-8: Hot-Water Solenoid
63
Rinsing Solenoid (Y62) Removal
64
Figure 051-9: Support Plate Retaining Screws
64
Figure 051-10: Rinsing and Hot-Water Solenoids
65
Figure 051-11: Rinsing Solenoid
65
Coffee/Hot Water Pump (2M7) Removal
66
Figure 051-12: Service Door Screws
66
Figure 051-13: Service Door Open
66
Figure 051-14: Coffee/Hot Water and Steam Pumps
67
Steam Pump (1M7) Removal
68
Figure 051-15: Coffee/Hot Water Pump
68
Flow Meter (B3/4) Removal
69
Figure 051-16: Steam Pump
69
Figure 051-17: Flow Meter
70
Figure 051-18: Flow Meter (1) and Plastic Support (2)
70
Decompression Vessel Removal
71
Ceramic Valve Removal
71
Figure 051-19: Decompression Vessel and Ceramic Valve
71
Figure 051-20: Ceramic Valve, Removed from Machine
72
Containers, Drip Tray, Accessories
73
Technical Information 2 Function
74
Water Tank
74
Filling the Water Tank
74
Manually Filling the Water Tank
74
Figure 060-1: Pull Door Open
74
Figure 060-2: Pull Water Tank out
74
Automatically Filling the Water Tank (CVA 4066 Models Only)
75
Filling the Beans Container
75
Figure 060-3: Setting Water Fill to Automatic, Step 1
75
Figure 060-4: Setting Water Fill to Automatic, Step 2
75
Figure 060-5: Beans Container
75
Fault Repair
76
Milk Container Not Registered as Empty
76
Milk Container Present but Not Registering
76
Service
76
Rinsing the Milk Pipework
76
Cleaning the Milk Pipework
76
Cleaning the Stainless-Steel Milk Container
77
Descaling the Appliance
77
Electronic Modules
78
Function
79
Machine Response after Power Supply Interruption
79
Software Ids
79
Fault Repair
79
F1 -- Coffee/Hot Water NTC (2R30) Short-Circuited
79
F2 -- Coffee/Hot Water NTC (2R30) Open-Circuited
79
Table 070-1: Software Ids
79
F3 -- Steam NTC (1R30) Short-Circuited
80
F4 -- Steam NTC (1R30) Open-Circuited
80
F10 -- no Water Intake
81
F17 -- Insufficient Water Intake
81
F28 -- too Much Ground Coffee in Brew Unit
82
F41 -- EEPROM Faulty/Data Fault
83
F42 -- Line Frequency Not Registered
83
F47 -- no Communication between Control and Power Electronics
83
F73 -- Brew Unit Fault
83
Figure 070-1: Brew Unit Positioning Microswitches
83
F74 -- Ceramic Valve Fault
84
Figure 070-2: Brew Unit Guide
84
F76 -- Fault During Pressing in Brew Unit
85
F77 -- Ceramic Valve Initialization Fault
85
F80 -- Coffee/Hot Water Heater (2R1) Not Heating
85
F81 -- Steam Heater (1R1) Not Heating
85
F82 -- Coffee/Hot Water Heater (2R1) Overheating
86
F83 -- Steam Heater (1R1) Overheating
86
F94 -- Water Intake Fault
86
Replace Drip Tray" Message, Even Though Drip Tray Is Inserted
87
Empty Drip Tray" Message, Even Though Drip Tray Is Not Full
87
X Servings until Descaling" Shown in Display
88
Empty Waste Container" Message, but Waste Container Is Not Full
88
Clean Brew Unit" Message Not Displayed
88
Table 070-2: "X Servings until Descaling" Versus Water Hardness
88
Descaling Is Interrupted
89
Fit Jets in Central Spout" Message Displayed
89
Fit Cover over Central Spout" Message Displayed
89
Service
89
Customer Programming Mode
89
Service Programming Mode
93
Table 070-3: Customer Programming Settings
93
Table 070-4: Service Programming Settings
94
Service Mode
95
Table 070-5: Service Mode
99
Power Electronic EPL (N4) Removal
100
Figure 070-3: Power Electronic Retaining Screws
100
Table 070-6: Brew Unit Positions
100
Water Intake (CVA 4066 Only)
101
Function
102
Plumbed Water Line (CVA 4066 Only)
102
Safety Concept for Water Intake
102
Service
102
Water Inlet Filter Removal
102
Water Inlet Valve (1Y63, 2Y63) Removal
103
Figure 080-1: Brass Elbow Location
103
Figure 080-2: Service Door Retaining Screws
103
Figure 080-3: Water Inlet Valves
104
Technical Service Bulletins
105
Some Cvas May Experience a Power Electronic TRIAC Failure
105
The Display Clock on Models CVA 4062 and CVA 4066 May Change Time Unexpectedly
106
CVA & French Roast Coffee
106
CVA Water Tank Cleaning
107
CVA 4062 & CVA 4066 Milk Pipework Conversion
107
CVA Door Hose Replacement
114
CVA Replacement Coffee Grinders
115
CVA 406X Hot Milk Temperatures
115
Understanding CVA 40Xx Temperature Fuses
116
CVA 406X & MDU Updates
117
Other manuals for Miele CVA 4068
Operating And Installation Instructions
76 pages
Installation Instructions
10 pages
Product Dimensions
2 pages
4
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Miele CVA 4068 Specifications
General
Brand
Miele
Model
CVA 4068
Category
Coffee Maker
Language
English
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