Miele DG 408 Series, Technical Information

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Technical Information
3
DG 408x Steam Ovens
3.3 Appliance Generates Strong Steam at First Use, or After a Power Outage/Reset 32
3.4 Appliance Appears to be Incorrectly Installed ....................................................... 32
3.5 Steam Generator is Discolored ............................................................................. 32
4 Service ...................................................................................................................... 33
4.1 Checking the Resistance of the Steam Generator Heater (1R25, 2R25) ............. 33
4.2 Removing the Steam Generator Heater (1R25, 2R25) ......................................... 34
4.3 Removing the Steam Generator Temperature Regulator (1F1) and Temperature
Limiter (1F8) .......................................................................................................... 34
4.4 Removing the Steam Duct and Seal ..................................................................... 35
4.5 Accessing the Tank Float/Float Switch Actuating Magnet (DG 4080 Only) .......... 36
4.6 Removing the Reed Contact Float (PCB) (S12) .................................................... 36
4.7 Removing the Steam Generator Present Switch (S84) ......................................... 37
4.8 Removing the Steam Generator Socket ................................................................ 37
060 Fascia, Electronics ................................................................................................. 38
2 Function .................................................................................................................... 39
2.1 Optical Interface ..................................................................................................... 39
2.2 Electronics Overview ............................................................................................. 40
2.3 Warming Function .................................................................................................. 41
2.4 Power Management ............................................................................................... 41
2.5 Descaling ............................................................................................................... 41
3 Fault Repair .............................................................................................................. 42
3.1 Fault Code Summary ............................................................................................. 42
3.2 F05 - Short Circuit in PT 1000 Temperature Sensor ............................................. 42
3.3 F06 - Open Circuit in PT 1000 Temperature Sensor ............................................. 42
3.4 F20 - Heating Fault ................................................................................................ 42
3.5 F44 - Control Electronic/Power Electronic Interface is Faulty ............................... 44
3.6 Displays Look Different .......................................................................................... 44
3.7 Wrong Language Setting ....................................................................................... 44
3.8 Display Dims .......................................................................................................... 44
3.9 Time of Day Shown in 12-Hour Format/24-Hour Format ...................................... 44
3.10 Cooking Program Does Not Start .......................................................................... 45
3.11 Excessive Steam in the Oven Cavity ..................................................................... 45
3.12 Cooked Food Is Not Kept Warm ............................................................................ 45
3.13 Recommended Temperatures Are Changed ........................................................ 45
3.14 Display Is Hard To Read........................................................................................ 45
3.15 Buzzer at the End of a Cooking Cycle is Too Loud/Soft/Short .............................. 45
3.16 When Touching a Keypad, Tone is Too Loud or Too Soft .................................... 46
3.17 System Lock Is Possible/Not Possible .................................................................. 46
3.18 Temperature in °C / °F ........................................................................................... 46
4 Service ...................................................................................................................... 46
4.1 Programming Mode ............................................................................................... 46
4.2 Service Mode ......................................................................................................... 49
4.3 Removing the Fascia Panel Assembly .................................................................. 51
4.4 Removing the Control Electronic (DG 4082) ......................................................... 53
4.5 Removing the Selection Electronic ........................................................................ 53
070 Technical Service Bulletins ................................................................................... 54
1 DG 4080 Steam Oven Displays F20 in a New Installation ........................................ 54
List of Figures
Figure D-1: Overview of DG 4080 (Front View) ...................................................................... 7
Figure D-2: Overview of DG 4082 (Front View) ...................................................................... 8
Figure D-3: DG 4080 Electrical Components .......................................................................... 9
Figure D-4: DG 4082 Electrical Components ........................................................................ 10