Electrolux W455 H User manual

Service Manual
W455 H, Quick Wash
Compass Control
438 9226-51
06.18

Contents
Safety regulations ......................................................................................... 5
Techical data ................................................................................................ 7
Machine presentation ................................................................................... 9
Description ............................................................................................... 9
Function ................................................................................................. 10
Periodic maintenance ................................................................................. 17
Daily
....................................................................................................... 17
Every three month ................................................................................. 17
Troubleshooting .......................................................................................... 19
General information on troubleshooting ................................................. 19
Description of fault and causes ............................................................. 23
Program unit ............................................................................................... 41
Description ............................................................................................. 41
Menu tree .............................................................................................. 43
Engaging service mode ......................................................................... 44
Service programme ............................................................................... 45
Config 1 ................................................................................................. 52
Aktivate washing programme ................................................................ 64
Unbalance detecting
.............................................................................. 65
Door and doorlock ...................................................................................... 67
Door
....................................................................................................... 67
Doorlock ................................................................................................ 67
Motor .......................................................................................................... 69
Description ............................................................................................. 69
T
roubleshooting ..................................................................................... 74
Drain valve ................................................................................................. 79
Description ............................................................................................. 79
T
roubleshooting ..................................................................................... 79
Drain pump
................................................................................................. 87
Description ............................................................................................. 87
T
roubleshooting ..................................................................................... 87
Detergent dispenser ................................................................................... 89
Heating ....................................................................................................... 91
Description ............................................................................................. 91
T
roubleshooting ..................................................................................... 91
Drum .......................................................................................................... 93
Changing lifters
...................................................................................... 93
Frame ......................................................................................................... 97
Tightening torques ..................................................................................... 99
The manufacturer reserves the right to make changes to design and
material specifications.

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438 9047-01/01
Safety regulations
Safety regulations
• The machine is intended for washing with water only.
• Do not allow children to use the machine.
• Installation and service must be carried out by authorised personnel.
• The machine’s door lock must under no circumstances be bypassed.
• Leaks in the system, e.g. worn door seal, must be repaired immediately.
• The personnel concerned shall study the relevant user instructions and
service manuals before commencing repairs or maintenance.
• Do not hose down the machine with water.
Warnings
The service manual contains the following warnings concerning serious
personal injury. Next to each warning is a reference to the page and
section where the warning text is located in the manual.
DANGER
Take care when measuring the motor control system since all
components have a potential difference of approximately 300V in
relation to protective earth and neutral.
The components will contain dangerous voltages when the green
LED on the motor control board is on.
The motor control system will remain live for 10-30 seconds after
cutting the power to the machine and the motor has stopped
running.

7
438 9047-21/01
Technical data
Technical data
Physical properties
Drum
volume l 53
diameter mm 520
depth mm 365
Capacity dry weight
fill factor 1:10 kg 5.3
fill factor 1:13 kg 4.0
Drum rpm
washing rpm 54
washing, mild and
wool programmes rpm 35
extraction rpm 1300
G-factor
washing 0.7
extraction 425
Dimensions
width mm 595
depth mm 680
height mm 850/875
Free service space,
recommended
side mm 50
rear mm 500
Weight
net kg 99

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438 9047-21/01
Technical data
Connections
Max floor load when
spin drying kN 1.2±0.3
Frequency (dynamic load) kN 1.2±0.3
Water valves
connection DN20 BSP3/4
rec. water pressure kPa 200-500
pressure limits kPa 40-1000
Drain valve
outer connection diameter mm 50
capacity l/min 160

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438 9047-41/02
Machine presentation
6212
1
6212
1
Description
General Information
The machine has an electronic program unit with
fixed wash programs that can be changed with
options. The program unit also has an integrated
troubleshooting program for extended possibility
of rational service.
The motor is frequency controlled through an
advanced motor control unit. This offers a very
precise and flexible control of the motor rpm in
each step.
The machine is delivered complete with customer
options for heating with electricity or unheated.
Fig.
1

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438 9047-41/02
Machine presentation
CON6
1
11
6211
2
1
17
16
12
13
5
10
11 8
4
7
3
6
9
2
15
14
Function
General Information
The machine is freely suspended, which means the outer drum and motor
are mounted on a supporting ”cradle” that rests on four shock absorbers for
dampening the imbalance in the machine.
The washer drum (inner drum) is belt driven by a motor. This motor is
located at the bottom of the machine and is mounted on the cradle with
a belt tensioner. The inner drum is mounted to the outer drum at the rear
plate with two bearings sealed against leakage with sealing rings.
The drain valve is a water-controlled diaphragm valve alternatively, an
electrical drain valve or drain pump.
The door is of sturdy type that is interlocked with a lock module when in
operation.
The control panel contains a program knob for selecting the fixed wash
programs and a display.
The program unit is mounted inside the control panel. Contactor, water
valves, etc., are located at the back of the machine.
Fig.
2
1. Detergent drawer
2. Water inlet valves
3. Power supply
4. I/O-board
5. Rear electrical module
6. Motor control
7. Outer drum
8. Shock absorber
9. Motor
10. Drain valve
11. Bottom plate
12. Door
13. Door lock
14. Program knob
15. Display
16. Control panel
17. Program unit

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438 9047-41/02
Machine presentation
6211
5190
3
4
3
K21
1
2
45
CON6
1
11
6
6211
5190
3
4
3
K21
1
2
45
CON6
1
11
6
Program unit
The control panel contains a program knob and a
display. The panel can also be equipped with two
preset buttons.
The control panel and display are used by:
• the user to select the machine’s fixed wash
programs, to select up to two options for each
wash program and for information on the wash
process and any fault indicators.
• service personnel for navigation and control of
the program unit’s service program.
• programming personnel for setting and
program adjustment in the program unit’s
software.
If present, the preset buttons are used for direct
start of two preset wash programs.
Using information on torque values from the
motor, the weight of each wash is measured
before each wash program in order to adapt the
amount of water used for washing.
The program unit controls the water valves, drain
valve and heating via an I/O board in the rear
electrical module. Control signals to external
units, such as detergent pumps or external water
valves can also be engaged here.
Fig.
3
Fig.
4
Program unit
1. Program unit A1
2. I/O-board A11,
Outputs for water, detergent and drain.
3. Heater element
4 Water valves
5. Drain valve
6. Power supply

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438 9047-41/02
Machine presentation
CON6
1
11
6211
5189
5
6
2
1
3
2M1
1
1. Motor control
2. Motor
1. Program unit A1
2. Power supply
3. Motor control U1
Motor and motor control
The washer drum (inner drum) is belt driven by a
frequency controlled motor. The motor is located
on a motor shelf under the outer drum and has
been arranged with a belt tensioner.
Motor control is microprocessor controlled and
can control the acceleration of the drum, its rpm
and its retardation very precisely.
Motor control communicates with the program
unit through a serial interface.
The machine’s motor and motor control are
described in more detail in the section Motor.
Fig.
5
Fig.
6

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438 9047-41/02
Machine presentation
CON6
1
11
7
8
6305
2
6303
M1
6
1
5
7
1
4
3
2
Door lock
The door lock is electromechanical with twin
safety breakers. The lock is bi-stable, i.e. the lock
must be given an active signal from the program
unit to lock as well as unlock the door.
A separate circuit integrated in the program unit
checks and controls the locking and unlocking of
the door through a lock module. The circuit has
separate controls that the drum is empty and
that it is stationary. Through sensors in the lock
module, the circuit checks the door’s closed and
locked position. Together with other controls the
program unit conducts, this will guarantee the
door cannot be opened by mistake.
The machine’s door and door lock are described
in more detail in the section Door and door lock.
Fig.
7
Fig.
8
1. Program unit
2. Lock module
1. Program unit A1
2. Temperature sensor B1
3. Level switch B2
4. Level switch B4
5. Motor control U1
6. Lock module A111
7. Rotation sensor B3

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438 9047-41/02
Machine presentation
CON6
1
11
9
6211
1
2
10
CON6
1
11
CON6
1
11
6256
1
2
3
4
Heating
Electric heating heats the washing water with two
elements accessible from the rear of the machine.
The machine’s heating system is described more
thoroughly in the section Heating.
Water connections
The machine can have one, two, three or four
water inlet valves depending on the machine size
and customer requirements.
In this unit there are also eight connections for an
external detergent feeder.
Rear electric module
Contains the main switch or terminal block for
incoming power, heating contactor, I/O board with
outputs for controlling the machine’s water and
drain valves and heating. There are also terminal
blocks for connecting e.g. external detergent
feeder.
Fig.
9
Fig.
9
Fig.
10
1. Water connections
2. Heating element
1. Rear electric module
2. Power supply connection
3. Distribution board
4. Contactor K21 (Heat)

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438 9047-41/02
Machine presentation
CON6
1
11
11
5
3
2
4
1
6211
Detergent Drawer
The drawer has four compartments for prewash,
main wash, rinse and bleaching agent/liquid
detergent.
The machine’s detergent drawer is described
more thoroughly in the section Detergent
drawer.
Drain valve
The valve is a diaphragm valve that is opened
and closed through water pressure. The control
valve is mounted by the water valves.
The machine’s drain valve is described more
thoroughly in the section Drain valve.
Frame and suspension
The machines are freely suspended, i.e. the
drum package can move and is suspended in
relation to the frame. In this way, a minimum
of vibration passes to the bottom plate, which
in turn simplifies installation as a concrete
foundation is not required.
The machine has four shock absorbers between
the bottom plate and the drum package.
The machine’s frame is described more
thoroughly in the section Frame.
Fig.
11
Fig.
11
Fig.
11
1. Detergent drawer
2. Bottom plate
3. Drain valve
4. Shock absorbers
5. Drum package

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438 9047-61/01
Periodic maintenance
The following maintenance procedures should be followed to ensure good
and safe operation and to prevent functional disturbances.
The time for maintenance should be adapted to the degree of usage of the
machine.
Daily
• Check door and door lock:
- Leave the door open and try to start the machine. The machine
should not start.
- Close the door, start the machine and try to open the door again. It
should not be possible to open the door until the drum has come to
rest.
- Make sure the door is not leaking.
- Clean the door seal from detergent residue and lint.
• Clean the detergent drawer from residue by rapidly advancing through a
programme and allowing the water to flush it clean.
Every three months
Carried out by authorised personnel only!
• Make sure the drain valve does not leak during the wash.
• Make sure there have not been any leaks from the door.
• Inspect the machine’s drain and remove any lint.
• Inspect inside the machine (in direct connection in a way so that any
leaks are visible) in the following manner:
- Turn off the machine’s main switch.
- Remove the top cover and the protective plates front and rear.

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438 9047-61/01
Periodic maintenance
- Check that none of the inner hose connections are leaking.
- Check the drive belt and tighten or replace as appropriate (see
section on Motor).
- Make sure water has not leaked onto the floor.
- If the warm-up time has been abnormally long, check the heater
element (see section of Heating). In very hard water, check that there
are no lime deposits on the heater element. If necessary, decalcify the
element. Follow the manufacturer’s recommendations regarding
amount of decalcifying agent to use.
- Never turn on the heater element without water in the machine. This
will trigger the fusible cut-out.
- Check the shock absorbers.

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438 9047-81/02
Troubleshooting
General information on troubleshooting
The troubleshooting section is used to trace faults in the machine to a
defective component or unit.
There is a memory in the program unit that will save the selected program
for approx. 3-5 minutes in the case of power cuts.
The machine will restart automatically if the power is turned on again within
this time.
Safety regulations
Troubleshooting may only be carried out by authorised personnel.
Observe the safety regulations in chapter 1 before commencing
troubleshooting.
Take care during all work on the machine while the power is on.
DANGER
Take care when measuring the motor control system since all com-
ponents have a potential difference of approximately 300V in relation
to protective earth and neutral.
The components will contain dangerous voltages when the green
LED on the motor control board is on.
The motor control system will remain live for 30-60 seconds after
cutting the power to the machine and the motor has stopped run-
ning.
Measurements
For information on measuring points, components and voltages, please
refer to the relevant wiring diagram for the machine in question.

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438 9047-81/02
Troubleshooting
1
6204
Faults with fault code
A fault in the program or in the machine is indicated on the display
by an error message comprising an error code and a descriptive text.
Fault code
Illustration
1
Fault code
The following is a brief description of all fault codes. The following pages
describe fault codes, possible causes and corrective measures for each
code.
Fault code Text message
001 No water
002 Door open
003 Door lock fault
004 NTC low temp
005 NTC high temp.
006 Water in drum
007 Drum overflow
008 No heat
009 Klixon
010 Drum not empty
011 Imbal. to prog. start
FAULT
001
NO WATER