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Coffee Maker
CM6
Miele CM6 User Manual
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Technical Information
14
CM6
2.2.3
Hot Water (CM 63x0 Onl
y)
Figure 001-4:
Water Path for Hot Water (CM 63x0)
1
Pump (M7)
2
Flow meter (B3-4)
3
Water tank
5
Heater (R1)
6
Ceramic valve (M29) in pos. 3 = Hot water, steam, air
7
Hot-water spout
12
Drip tray
2.2.4
Hot Milk
Figure 001-5:
Hot Milk
1
Pump (M7)
2
Flow meter (B3-4)
3
Water tank
5
Heater (R1)
6
Ceramic valve (M29) in pos. 5 = Steam (hot milk)
10
Coffee/milk spout
11
Milk container
12
Drip tray
13
15
Table of Contents
Default Chapter
2
Table of Contents
2
Warning and Safety Instructions
6
General
6
Risk of Burning or Scalding
6
Touch Current Measurement
6
Before the First Use
7
B Modification History
7
C Technical Data
7
Figure C-1: CM 61X0
7
Figure C-2: CM 63X0
8
Table C-1: Serial Modifications
8
Table C-2: Technical Data
9
Table C-3: Quantities until Obligatory Descaling
9
Table C-4: Technical Data
9
D Layout of Electrical Components
10
CM 61X0
10
Figure D-1: CM 61X0 Component Layout
10
CM 63X0
11
Figure D-2: CM 63X0 Component Layout
11
001 Overview
12
Function
12
Optical Interface
12
Water Paths
12
Figure 001-1: Optical Interface Location
12
Figure 001-2: Water Path Overview
12
Coffee
13
Figure 001-3: Water Path for Coffee
13
Figure 001-4: Water Path for Hot Water (CM 63X0)
14
Figure 001-5: Hot Milk
14
Hot Milk
14
Hot Water (CM 63X0 Only)
14
Figure 001-6: Milk Froth
15
Figure 001-7: Rinse
15
Milk Froth
15
Rinse
15
Brew Unit Drive
16
Microswitch Locations
16
Brew Unit Presence Monitoring
16
Electronic Grind Amount Compensation
16
Figure 001-8: Brew Unit Drive Switches
16
Figure 001-9: Actuator and Compensation Microswitch
17
Figure 001-10: Measurable Volume Areas
17
Figure 001-11: Selectable Volume Areas
17
Table 001-1: Switch Cam Settings
17
Brew Unit Drive, Home Position
18
Brew Unit Drive, Compressing Position (Brew Position)
18
Figure 001-12: Home Position, Rear View
18
Figure 001-13: Home Position, Front View
18
Brew Unit Drive, Drain Position
19
Figure 001-14: Brew Position, Rear View
19
Figure 001-15: Brew Position, Front View
19
Machine Response after Power Supply Failure
20
Drip-Tray Sensing
20
Fill Level
20
Presence
20
Figure 001-16: Drain Position, Rear View
20
Figure 001-17: Front View
20
Fault Repair
21
F1 - Short Circuit in Heater NTC (R30-14)
21
Figure 001-18: Drip Tray Present Switch
21
F2 - Open Circuit in Heater NTC (R30-14)
22
F10 - no Water Flow
22
F17 - Insufficient Water Flow
23
Figure 001-19: Pressure Pump
23
F28 - too Much Ground Coffee in Brew Unit
24
F38 - Display/Control Electronic EPB (N1-2) and Power Electronic EPL (1N1-1, 2N1-1) Not Compatible
24
F40 - Power Electronic EPL Fault (1N1-1, 2N1-1)
25
F41 - EEPROM Faulty/Data Fault
25
F42 - Line Frequency Not Registered
25
F73 - Brew Unit Fault
25
F74 - Ceramic Valve (M29) Fault
26
Figure 001-20: Brew Unit Switches
26
F76 - Brew Unit Compression Fault
27
F77 - Ceramic Valve (M29) Initialization Fault
27
F80 - Heater (R1) Not Heating
27
F82 - Heater (R1) too Hot
28
F235 - Display/Control Electronic (N1-2) Communication Fault
29
50 Portions until Descale" Message
29
Empty Drip Tray" Message, but Drip Tray Isn't Full
29
Drip Tray Must be Emptied Frequently
29
Coffee or Espresso too Cold
30
Milk Froth Unsatisfactory or Sputtering
30
No or very Little Coffee Flowing from Spout
30
Coffee Tastes too Bitter
30
Coffee Grounds Next to the Brew Unit
31
Figure 001-21: Grind Amount Compensation Switch
31
Water Pump Does Not Pump
32
Service
32
Drink Settings (Customer Programming)
32
Machine Settings (Customer Programming)
33
Table 001-2: Drink Settings (Customer Programming)
33
Table 001-3: Machine Settings (Customer Programming)
36
Service Programming
37
Service Mode
38
Table 001-4: Service Programming
38
Top Cover Removal
41
Table 001-5: Service Mode
41
Table 001-6: Brew Unit Position Switches
41
Figure 001-22: Top Cover Screw, Water Tank Side
42
Figure 001-23: Top Cover Screws, Brew Unit Side
42
Side Casing Removal
43
Figure 001-24: Top Cover Retainers
43
Figure 001-25: Front Casing Screws
43
Cup Warmer (R39) Removal (CM 63X0 Only)
44
Figure 001-26: Screw Cover
44
Figure 001-27: Side Casing Screws at Rear of Appliance
44
Front Panel Removal
45
EPB Display/Control Electronic (N1-2) Removal
45
Figure 001-28: Cup Warmer Screws
45
Figure 001-29: Front Panel Screws
45
Door Contact Switch (S24) Removal
46
Figure 001-30: Display/Control Electronic Cover Retainers
46
Figure 001-31: Display/Control Electronic Wiring Harness
46
Figure 001-32: Grinder Cover and Power Electronic Screws
47
Figure 001-33: Grinder Cover Screw
47
Grinder (M25) Removal
48
Figure 001-34: Door Contact Switch
48
Figure 001-35: Beans Container Screws
49
Figure 001-36: Ground Coffee Chute Screws
49
Figure 001-37: Grinder Screws and Ground Coffee Chute Base Screw
50
Figure 001-38: Grinder Thermostat
50
Grinder Thermostat (F3-3) Removal
51
EPL Power Electronic (1N1-1, 2N1-1) Removal
51
Figure 001-39: Grinder Thermostat Connection
51
Chute Present Switch (S87-5) Removal
52
Pump (M7) with Thermostat (F3-2) Removal
52
Figure 001-40: Power Electronic Screw
52
Figure 001-41: Chute Present Switch
52
Flow Meter (B3-4) Removal
53
Water Tank Sensor (B3-18) Removal
53
Drip Tray Present Switch (S87-1) Removal
53
Figure 001-42: Pump Connections
53
Ceramic Valve (M29) Removal
54
Figure 001-43: Water Tank Sensor and Drip Tray Present Switch
54
Heater (R1)/Fuse (1F8, 2F8)/NTC (R30-14) Removal
55
Figure 001-44: Ceramic Valve Screw
55
Removing the Brew Unit Drive (M26) and Brew Unit Switches
56
Figure 001-45: Heater Assembly
56
Figure 001-46: Brew Unit Drive Screws
57
Figure 001-47: Pump/Flow Meter Mounting-Bracket Screw
57
Figure 001-48: Water Tank Sensor/Drip Tray Present Switch Mounting-Bracket Screw
58
Figure 001-49: Brew Unit Drive Cover
58
Brew Unit Present Switch (S87-2) Removal
59
Grind Amount Step Contact Switch (S51-4) Removal
59
Dispenser Assembly, Spout Present Switch (S87-6) Removal
59
Figure 001-50: Brew Unit Drive Position Switches
59
Figure 001-51: Hose Cover Screws
60
Figure 001-52: Dispenser Assembly Hoses and Screws; Spout Present Switch
60
Hot-Water Spout Removal
61
Figure 001-53: Front Trim Piece Screws
61
Figure 001-54: Hot-Water Spout Removal
62
Technical Service Bulletins
63
CM 6X; F80 Cause and Repair
63
4
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Miele CM6 Specifications
General
Brand
Miele
Model
CM6
Category
Coffee Maker
Language
English
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