Miele G 7881 Service Manual

1 Technical Data
Fig. 1:Steam Condenser
1 Steam condenser
2 Steam vent from machine
3 Cold-water inlet from WaterProof System
4 Water from steam condenser to flow meter
5 DOS K 60 drain pump for steam condenser
6 Drain hose connected to machine drain
7 Intake hose from steam condenser
8 Overflow, drains into drip pan
Descriptive Technical Documentation
062-2 DTD no. 62-7881
This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am 

2 Function
2.1 Steam Condenser Function
The purpose of the steam condenser mounted on the rear of the machine is to
prevent the excessive discharge of steam. It also serves as a vent for the cabinet.
2.2 Water Intake
Water is brought into the steam condenser during a fill cycle via the cold-water
inlet valve. This water is in a cooling plate that is separate from the steam that
comes from the machine. The water coming in displaces the water in the steam
plate. The water that is displaced is then brought...

4 Service
4.1 DOS 60/30 Pump Removal
ARemove the bottom pan.
ADisconnect the 2 hoses from the pump.
ARemove the 2 screws securing the pump's mounting bracket to the rear
panel.
ARemove the pump with mounting bracket.
Descriptive Technical Documentation
062-4 DTD no. 62-7881
This information should not be duplicated or passed on without Miele approval. All rights reserved. 18.09.2013, US_am 

063 Steam Condenser
G 7882 CD, G 7883 CD
1 Technical Data
x
Fig. 1:Steam Condenser, CD Models
1 Spray nozzle
2 Steam condenser
3 Drain outlet with non-return valve
4 Condenser overflow level switch
5 Condenser drain pump
6, 7 Condenser solenoid valves
Descriptive Technical Documentation
DTD no. 62-7881 063-1
18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved. 

2 Function
2.1 Overflow Level Switch, B1/2
x
Fig. 2:Drying Unit Drip Tray
1 Level switch - Overflow, B1/2
2 Drain pump, condensate pump, M13
3 Inlet valve - Steam condenser, cold, 1Y22 and 2Y22
The hose connection for the overflow level switch (063 Fig. 2, Pos. 1) is in the
intake connection just before the condensate pump (063 Fig. 2, Pos. 2) in the
water circuit. The overflow level switch itself is positioned slightly raised on the
rear of the drying unit. If the water in the steam condenser rises...

070 Fascia Panel, Electronic
G 7881, G 7882, G 7883
x
Descriptive Technical Documentation
DTD no. 62-7881 070-1
18.09.2013, US_am This information should not be duplicated or passed on without Miele approval. All rights reserved. 

2 Function
2.1 Fascia Panels
2.1.1 Individual Fascia Panels
x
Fig. 1:G 7881 Fascia Panel
Fig. 2:G 7882 Fascia Panel
Fig. 3:G 7883 Fascia Panel
2.1.2 Optical Indicators
x
Fig. 4:Optical Indicators
1 Digital display
2 Program function buttons
3 Fault and monitoring indicator LEDs, red
4 Program sequence LEDs, yellow
5 Program selector switch with settings equivalent to a clock face
x
kSoftener reactivation
IPre-wash
lMain wash
Descriptive Technical Documentation
070-2 DTD no. 62-7881
This information...

HFinal rinse
cDrying
rFinish
Table 1:Program Sequence LEDs
p/qWater intake/drainage fault
kSalt container empty
wNeutralizing agent empty
H/ CHEM Rinse aid/chemical disinfectant empty
8/ DOS Optical interface/DOS dispenser module empty
Table 2:Fault and Monitoring Indicator LEDs
2.1.3 Digital Display
The digital display can be used to show one of three current cleaning parameters
–the current suds temperature in °C, the current wash block or the elapsed time
of the cleaning program in operation in...

4 Plug connection ST 1 - Connection plug from EP 081 to relay
module EGL 011
5 Plug connection ST 6 - Connection plug from EP 081 to relay
module EGL 011
6 Plug connection ST 5 - Voltage supply for EGPL from transformer
T1
7 Plug connection ST 3 - Circulation pump speed sensor B3/9
8 Plug connection ST 2 - Dispenser system socket, X1/2 / Reed
switch - Reactivation salt, B8/2
9 Plug connection ST 2 - Level switch B1/10 / Relay solenoid 2K1/1 /
NTC sensor 1R30
10 Plug connection ST 4 - Relay solenoid...

2.4 Special Features of Infection Protection Programs
Infection protection programs, e.g.,Disinfection 93°C 10 min, are programs
whose wash and cleaning parameters are set by law. It is not permitted to modify
these programs in any way. Some functions or requirements for fault indications
vary from those for other programs and are therefore always specially mentioned.
2.5 EGPL 081 Programming
2.5.1 General Programming Information
If several values are to be modified, these can be set one after the other...