Miele W 4802 Manual

TECHNICAL INFORMATION
W 48xx Washers (US Models)
© 2018 Miele USA

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W 48xx
Table of Contents
AWarning and Safety Instructions ............................................................7
1General...................................................................................................... 7
2Sharp Edges.............................................................................................. 7
3Touch Current Measurement..................................................................... 7
4Restoring the Ground Connection after Dismantling the Front and Side
Panels........................................................................................................ 8
5Voltage Present on Power Electronic (ELP).............................................. 8
BModification History.................................................................................8
CTechnical Data..........................................................................................9
DLayout of Electrical Components ...........................................................9
1Optical PC Interface .................................................................................. 9
2Machine Components.............................................................................. 10
010Casing, Lid, Shipping Struts ................................................................. 11
1Technical Data......................................................................................... 12
3Fault Repair ............................................................................................. 12
3.1 Vibrations during Spin Cycle........................................................ 12
4Service..................................................................................................... 12
4.1Lid Removal................................................................................. 12
4.2Side Panel Removal .................................................................... 13
4.3 Front Panel Removal ................................................................... 13
4.4Float/Float Switch (B8) Removal ................................................. 15
020Door, Magnet, Lock................................................................................ 16
1Technical Data......................................................................................... 17
2Function................................................................................................... 17
2.1Door Lock (A2)............................................................................. 17
3 Fault Repair ............................................................................................. 18
3.1Door Lock (A2) Does Not Lock .................................................... 18
4Service..................................................................................................... 18
4.1Manually Opening Door Lock A2 ................................................. 18
4.2 Removing Door Lock A2.............................................................. 19
4.3Door Assembly Removal ............................................................. 19
4.4Removing the Door Porthole, Door Latch and Hinge .................. 19
030Suds Container, Drum, Bearing, Heater Element ................................21
1Technical Data......................................................................................... 22
2Function................................................................................................... 22
2.1Foam Sensing.............................................................................. 22
2.2Light in the Door Concertina Seal................................................ 23
2.3 Heater .......................................................................................... 23
4Service..................................................................................................... 24
4.1Heater Element and NTC (R30) Removal ................................... 24
4.2Replacing the Door Seal.............................................................. 24

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4.3Lighting Assembly Removal ........................................................ 25
4.4Imbalance Sensor Removal......................................................... 25
4.5Suds Container Removal............................................................. 25
040Water Intake............................................................................................27
1Technical Data......................................................................................... 28
2 Function................................................................................................... 28
2.1 Float Switch B8............................................................................ 28
2.2Hot-Water Intake Control ............................................................. 28
2.3Automatic Load Control/Intelligent Water Intake (IWE) ............... 28
2.4Water Intake Monitoring - Water Control System (WCS)............. 29
2.5 Water Overflow Monitoring .......................................................... 29
2.6Flow Meter (B3/4) ........................................................................ 29
2.7 Water Path Control Unit and Motor (M24) ................................... 29
4Service..................................................................................................... 30
4.1Water Path Control Unit Removal................................................ 30
4.2Inlet Valve Removal..................................................................... 30
050 Drainage..................................................................................................31
1Technical Data......................................................................................... 32
2 Function................................................................................................... 32
2.1 Water Drain Monitoring................................................................ 32
4 Service..................................................................................................... 32
4.1Drain Pump Removal................................................................... 32
4.2Filter Housing Removal ............................................................... 32
060Drive ........................................................................................................33
1 Technical Data......................................................................................... 34
2 Function................................................................................................... 34
2.1Spin Lock ..................................................................................... 34
2.2Toothed V-Belt............................................................................. 34
2.3Motor Overheating Protection...................................................... 34
2.4Tachogenerator ........................................................................... 34
3 Fault Repair ............................................................................................. 35
3.1Defective Drum Drive................................................................... 35
4 Service..................................................................................................... 35
4.1Tachogenerator ........................................................................... 35
4.2Mounting the Toothed V-Belt ....................................................... 35
4.3Drive MXT 40............................................................................... 35
4.4 Drive Removal ............................................................................. 36
070Fascia Panel, Electronic ........................................................................ 37
1 Technical Data......................................................................................... 38
2 Function................................................................................................... 38
2.1 Child Safety Sensor ..................................................................... 38
2.2Action after a Power Failure ........................................................ 39
2.3Programming Functions (HY IV E) .............................................. 39
2.4 Service Functions ........................................................................ 43
2.5 Demo Mode ................................................................................. 44
2.6Fault Dialog.................................................................................. 44

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3 Fault Repair ............................................................................................. 45
3.1All LEDs Flash ............................................................................. 45
3.2“Start” LED Flashes Rapidly ........................................................ 45
3.3 Display Reads “- - -”..................................................................... 45
3.4 Display Indicates: Program is Locked.......................................... 45
3.5 Display Indicates: Appliance is Locked........................................ 46
3.6 Display Indicates: Locked, Enter Code........................................ 46
3.7 Display Indicates: No Start. Demo Mode Activated ..................... 47
3.8 Display Indicates: Waterproof, Shut Off Faucet........................... 47
3.9 Display Indicates: Water Drain Fault, Check Drain...................... 47
3.10 Display Indicates a Technical Fault ............................................. 47
3.11 F 0 No Fault ................................................................................. 48
3.12 F 1 Water/Heater NTC Short Circuit ............................................ 48
3.13 F 2 Water/Heater NTC Open Circuit............................................ 48
3.14 F 10 Cold-Water Intake Fault....................................................... 49
3.15 F 11 Water Drain ......................................................................... 50
3.16 F 15 Hot-Water Intake Fault ........................................................ 50
3.17 F 16 Oversudsing ........................................................................ 51
3.18 F 19 Flow Meter is Sluggish (Flow Meter B3/4 or Volume Counter)52
3.19F 20 Heater (R1).......................................................................... 52
3.20 F 34 Door Does Not Lock ............................................................ 53
3.21 F 35 Door Does Not Release....................................................... 53
3.22 F 39 Electronic Fault (BAE) ......................................................... 54
3.23 F 41 Electronic Fault (Faulty EEPROM/Faulty Data)................... 54
3.24 F 43 Appliance Model Is Not Programmed.................................. 54
3.25 F 44 Electronic Fault (Defective I2C Bus Connection) ................. 54
3.26 F 45 Electronic Fault (Defective Flash RAM/Wrong Data)........... 54
3.27 F 46 Display................................................................................. 55
3.28 F 47 Electronic Fault (Defective EW-ELP Interface).................... 55
3.29 F 50 Drive .................................................................................... 55
3.30 F 51 Imbalance Sensor................................................................ 55
3.31 F 53 Speed Sensor (Tachogenerator) ......................................... 56
3.32 F 56 No Spin Action..................................................................... 56
3.33 F 63 Water Path Control Fault ..................................................... 57
3.34 F 92 Bacterial Control .................................................................. 57
3.35 Residual Time Keeps Changing .................................................. 57
3.36 Maximum Spin Speed Is Not Reached........................................ 58
3.37 Water Path Control Unit (M24) is Not Activated as Programmed 58
3.38 Long Program Running Times..................................................... 58
4 Service..................................................................................................... 58
4.1 Programming Mode (W 4800, W 4802) ....................................... 58
4.2 Activating/Deactivating Demo Mode (W 4800, W 4802).............. 62
4.3 Programming Mode (W 4840, W 4842) ....................................... 62
4.4 Activating/Deactivating Demo Mode (W 4840, W 4842).............. 65
4.5 Service Mode Overview, W 4800 ................................................ 66
4.6 Service Mode Overview, W 4802 ................................................ 71
4.7 Service Mode Overview (W 4840, W 4842)................................. 75
4.8 Removing the Control Electronic (EW) and Fascia Support Panel79

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090 Electrical System ...................................................................................80
1 Technical Data......................................................................................... 81
4 Service..................................................................................................... 81
4.1 Power Electronic Removal........................................................... 81
4.2 RemoteVision Module Removal .................................................. 81
Technical Service Bulletins .............................................................................82
1Water Intake Behavior ............................................................................. 82
2Wash-Water Temperatures Used in the SLC Models ............................. 82
3SLC Washer Start Button Behavior ......................................................... 82
4Programming is Required When Replacing the Power/Control Electronic
in the W 4800 and W 4840 Washers....................................................... 82
5Water Temperature Behavior in the W 4800 and W 4840 SLC Washers -
Normal Program ...................................................................................... 83
6The Insulation Mats on Some SLC Laundry Machines May Come Loose83
7Concertina Hoses in the W 4800 and W 4840 SLC Washers; “Waterproof”
Shows in the Display ............................................................................... 83
8Activation of Hygiene Function in SLC Washers W 4800, W 4840 ......... 84
9New Vibration Dampers Are Available for SLC Washers (W 48xx)......... 84
10SLC W 48xx Door Seals & Leaks............................................................ 85
11SLC Washer Detergent Drawer Issues; Immobilizing Brake ................... 87
12W 48xx Electronic Replacement.............................................................. 87
13SLC Washer Stops and Displays “Pause” During a Fill (W 484x) or Stops
and Blinks the “Start” Light During a Fill (W 480x) .................................. 87
14Washer Inlet Hoses; Spare Parts ............................................................ 88
15Washer Heater Behavior: W 4xxx & W 3xxx ........................................... 88
16SLC Washers: Detergent Drawer Pops Out during Wash Cycles ........... 88
17 W 48XX Electronic Replacement ............................................................ 89
List of Figures
Figure D-1: Optical PC Interfaces ..................................................................................... 9
Figure D-2: W 48xx Component Layout.......................................................................... 10
Figure 010-1: Lid Removal.............................................................................................. 13
Figure 010-2: Front Panel Removal ................................................................................ 14
Figure 010-3: Float Switch Assembly.............................................................................. 15
Figure 020-1: Manually Opening the Door Lock .............................................................18
Figure 020-2: Door Lock Removal .................................................................................. 19
Figure 020-3: Door Assembly ......................................................................................... 20
Figure 030-1: Door Seal Removal................................................................................... 25
Figure 060-1: Mounting the Frontloader Toothed V-Belt................................................. 35
Figure 070-1: Control Electronic and Fascia Support Panel........................................... 79
List of Tables
Table C-1: Technical Data: Large-Capacity Front-Loader Domestic Washer................... 9
Table C-2: Technical Data: Software ................................................................................ 9
Table 010-1: Casing Technical Data............................................................................... 12

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Table 020-1: Door, Magnet, Lock - Special Tools........................................................... 17
Table 030-1: Technical Data: Suds Container, Drum, Bearing, Heater Element ............ 22
Table 030-2: Suds NTC (R30) Resistance Values.......................................................... 22
Table 040-1: Water Intake Data...................................................................................... 28
Table 050-1: Drain Pump Data ....................................................................................... 32
Table 060-1: Drive Data .................................................................................................. 34
Table 060-2: Drive Special Tools .................................................................................... 34
Table 070-1: Fascia Panel and Control Electronic Data ................................................. 38
Table 070-2: Programming-Mode Overview, W 4800 and W 4802 ................................ 61
Table 070-3: Programming-Mode Overview, W 4840 and W 4842 ................................ 65
Table 070-4: Service Mode Overview, W 4800............................................................... 70
Table 070-5: Service Mode Overview, W 4802............................................................... 75
Table 070-6: Service Mode Overview, W 4840 and W 4842 .......................................... 78
Table 090-1: Electrical System Technical Data ..............................................................81

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A Warning and Safety Instructions
1 General
All repairs should be performed by a trained technician in strict accordance
with national, state and local codes. Any repairs or maintenance performed
by unqualified personnel could be dangerous.
When servicing, modifying, testing or maintaining appliances, all applicable
laws, regulations and accident prevention guidelines must be observed.
Before starting any service work, disconnect the machine from its power
source.
Even with the machine switched off, voltage may exist on some components.
Do not work on the washer while it is carrying voltage. If this becomes
unavoidable, as in the process of locating faults, put extra safety measures
into place.
After work has been completed, as a matter of standard practice, a visual as
well as an operational check should be performed.
2 Sharp Edges
Components may have sharp edges as an outcome of production.
Wear protective gloves and use edge shields (mat. no. 05057680) to prevent
cuts by sharp-edged components.
3 Touch Current Measurement
Note:
Touch current measurement should be carried out on all accessible
conductive parts that are not connected to ground.
Warning!
Touch current measurement should only be carried out after the ground
connection of the machine under test has been checked and found to be
satisfactory!
Dangerous voltages may exist on defective machines as well as on
accessible conductive parts that are not connected to ground!
Note:
Touch current measurement should be carried out on the following
accessible conductive parts:
Door ring.

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4 Restoring the Ground Connection after Dismantling the
Front and Side Panels
Danger!
The ground connection can be invalidated by faulty reassembly of laundry-
care appliances.
The ground connection for laundry-care appliances is established via screws:
Raised-head screws with teeth or toothed washers underneath connect the
ground lead to the interference-suppression filter, the front panel, the side
panels and the housing frame. These raised-head screws are different from
the rest of the appliance screws in the following areas: diameter, type of
thread, type and material of the washer.
The ground connection remains only if the raised-head screws for the
ground connection are screwed into their correct positions during
reassembly.
When dismantling the front and side panels, mark the positions of the raised-
head screws.
During reassembly, screw the raised-head screws into these same positions.
In order to check the proper screw positions, measure the resistance of the
ground connection circuit.
5 Voltage Present on Power Electronic (ELP)
Danger!
A capacitor on the power electronic (ELP) maintains voltage of up to
approximately 400 volts, even after the appliance is disconnected from the
power supply.
After the appliance is disconnected from power, an electrical resistor
discharges the capacitor within approximately 2 minutes.
Work on the power electronic (ELP) may only be started after it has been
established that the capacitor has been safely discharged.
B Modification History
When Who What
3/15/2018 Jessica Naples Conversion for Website
2/2/2009 Olaf Meyer zu Drewer Version 2
8/19/2008 Olaf Meyer zu Drewer Initial compilation

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C Technical Data
Dimensions Height x width x depth: 39” x 27” x 30”
(990mm x 685mm x 761mm
Weight 286 lbs (130 kg)
Stacked washer/dryer Not planned
Under-counter Not planned
Floor mounting Optional; mandatory on concrete base
Stand Optional, accessory
Required voltage and fuses on site USA: 120VAC, 60Hz, 15A
PC interface Optical
W-LAN interface (IEEE802.11),
Miele@home Optional, accessory
Table C-1: Technical Data: Large-Capacity Front-Loader Domestic Washer
Software version/Update Electronic Modifications
ID:1828 EW165 Series start for W 4842
ID:1826 EW100-U Series start for W 4802
ID:1827 ELP255 Series start for W 4802, W 4842
ID:1293 EW165 Series start for W 4840
ID:1079 EW100-U Series start for W 4800
ID:1043 ELP255 Series start for W 4800, W 4840
Table C-2: Technical Data: Software
D Layout of Electrical Components
1 Optical PC Interface
(top, W 484x; bottom, W 480x)
Figure D-1: Optical PC Interfaces

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W 48xx
2 Machine Components
Figure D-2: W 48xx Component Layout
1(B8) Float switch 9(1N1) Power electronic (ELP)
2(A2) Door lock 10, 11 (2N1) Control electronic
3(B3/4) Flow meter 12 Pressure sensor
4(Y12) Hot-water inlet valve 13 (H3/6) Drum light
5(Y14) Cold-water inlet valve 14 (R1) Heater element
6(M24) Water path control unit 15 (R30) NTC
7(WLAN) Wireless local area network connection
(optional) 16 (M5) Drum drive
8(Z1) Interference suppressor 17 (M8) Drain pump (suds pump)

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010 Casing, Lid, Shipping Struts

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1 Technical Data
Design Frame construction
Table 010-1: Casing Technical Data
3 Fault Repair
3.1 Vibrations during Spin Cycle
Cause:
The shipping struts are still in the appliance.
Remedy:
Remove the shipping struts.
Note:
To set up and connect the appliance, refer to the operating instructions.
Cause:
The floor is unstable.
Remedy:
Set up appliance on a sound floor that can support the appliance.
Note:
Floors are more stable in the corners of a room than in the middle of a
room.
Warning!
When installing the appliance on a stand on site, secure the appliance with
clamps to keep it from slipping off.
Cause:
The washer is not level.
Remedy:
Level the washer, adjust the feet and counter-lock.
4 Service
4.1 Lid Removal
1. Disconnect the machine from the power supply.
2. Remove the screw caps from the sides of the lid. See Figure 010-1.
3. Loosen the T20 screws a maximum of 5 turns. Do not unscrew the
screws completely.
4. Press in on the screws.
5. Lift the lid at the front and slide it back to release it from its retainers.
Take the lid off.

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Figure 010-1: Lid Removal
4.2 Side Panel Removal
1. Disconnect the machine from the power supply.
2. Remove the lid; refer to Section 010-4.1.
3. Remove the nine T20 screws (3 front, 3 top, 3 rear) securing the
appropriate side panel.
4. Take the side panel(s) off.
Note:
When re-installing the side panels, ensure that the screws with serrated
washers (ground screws) are installed in the correct positions.
4.3 Front Panel Removal
1. Remove the lid; refer to Section 010-4.1.
2. Remove the control electronic and fascia support panel; see Section 070-
4.8.
3. Open the door.
4. Remove the door lock retaining screws (T20); see Figure 010-2, Item 1.
5. Separate and remove the seal clamping ring; see Figure 010-2, Item 2.

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6. Loosen the door seal from the front panel.
7. Remove the two T30 screws securing the front panel above and below
the porthole (fill hole); see Figure 010-2, Item 3.
8. Close the door.
9. Remove the T20 screw securing the detergent drawer trim piece to the
front panel; see Figure 010-2, Item 4.
10. Unsnap the detergent drawer trim piece from the front panel.
11. Loosen the two T20 screws securing the top of the front panel; see Figure
010-2, Item 5.
Note:
Support the front panel while removing it.
12. Tilt the front panel forward at the top and lift it off.
Figure 010-2: Front Panel Removal
Note:
Before installing the front panel, hook the manual release latch into the
detergent drawer trim piece.

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4.4 Float/Float Switch (B8) Removal
Danger!
Risk of electric shock when working on low-voltage components.
In the power electronic, there is no galvanic isolation from the power supply.
When working on a washer connected to the power supply, be aware of the
risk of potential voltage on low-voltage components.
1. Disconnect the appliance from the power supply.
2. Remove the front panel; refer to Section 010-4.3.
3. Open the switch housing and disconnect the electrical connection from
the float switch.
4. Release the microswitch (Figure 010-3, Item 1) and/or remove the float
(Figure 010-3, Item 2) from the switch housing.
Figure 010-3: Float Switch Assembly

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020 Door, Magnet, Lock

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1 Technical Data
Special tools
Locking latch To run the appliance in service mode
with the front panel removed
View panel To run the appliance in service mode
with the front panel removed
Table 020-1: Door, Magnet, Lock - Special Tools
2 Function
2.1 Door Lock (A2)
2.1.1 Electromechanical Door Lock
When locking the door, the locking latch dips into the lock and is pulled into
the lock by the locking mechanism.
The power electronic (ELP) registers the locked state via a switch in the door
lock (A2).
During operation, with the door closed, the door lock is electromechanically
bolted; refer to Section 020-2.1.2.
As long as the door is not electromechanically bolted, the door can be
opened by simply pulling it.
Activating the emergency release cancels the electromechanical lock, and
the door can be opened.
Danger!
Opening the door by means of the emergency release may present danger
of injury by a rotating drum, danger of scalding suds and flooding.
Note:
Closing the door when the door lock is already locked causes damage to
the door lock.
If the door lock is locked with the door open, it has to be released manually;
refer to Section 020-4.1.
2.1.2 Safety Requirements
After pressing the Start pad, the electromechanical door lock is only activated
when the following safety requirements are met:
Drum speed less than 7 rpm, as registered by the tachogenerator,
Water level less than 3 ¼” wc, as registered by the imbalance sensor
(ADS),
Suds temperature less than 131°F (55°C), as registered by suds NTC
R30.

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3 Fault Repair
3.1 Door Lock (A2) Does Not Lock
The door latch hits the locking mechanism when pushing into the door lock.
Cause:
The locking mechanism is locked, with the door open.
Remedy:
1. Open the door lock manually; refer to Section 020-4.1.
2. Check the function of the door lock.
4 Service
4.1 Manually Opening Door Lock A2
Note:
Manual opening is only required when the door locking mechanism is
locked with the door open.
This happens if the locking mechanism is interfered with, e.g., if an object is
pushed into it.
In this situation, the locking latch cannot push into the lock and the door
can't be closed.
With the front panel in place, and the door lock and door seal installed, press
the door locking mechanism open.
Figure 020-1: Manually Opening the Door Lock

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4.2 Removing Door Lock A2
1. Disconnect the appliance from the power supply.
2. Remove the front panel; refer to Section 010-4.3.
3. Slide the door lock up and off the appliance chassis. See Figure 020-2.
4. Disconnect all electrical connections from the door lock.
Figure 020-2: Door Lock Removal
4.3 Door Assembly Removal
1. Disconnect the appliance from the power supply.
2. Open the door.
3. Separate and remove the seal clamping ring.
4. Separate the door seal from the front panel.
Warning!
Support the door while carrying out the following steps.
5. Remove the two 7mm bolts (bottom first, then top) securing the hinge
plate to the inside of the front panel.
6. Take off the bolts and the hinge plate from the inside of the front panel;
separate the door from the outside of the front panel.
4.4 Removing the Door Porthole, Door Latch and Hinge
1. Disconnect the appliance from the power supply.

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Figure 020-3: Door Assembly
Note:
The screw caps in the door ring are destroyed during dismantling and have
to be replaced when reassembling the door.
Do not damage the porthole ring when removing the screw caps.
2. Use a pointed tool to remove the screw caps on the porthole ring.
3. Remove the retaining screws.