Zanussi Washing machines User Manual

 ELECTROLUX ZANUSSI S.p.A.

Spares Operations Italy
Corso Lino Zanussi,30

I - 33080 PORCIA /PN (ITALY)

Fax [phone]

Edition: 2002-06-07

Publication No.

599 35 27-35

IT

SERVICE MANUAL

WASHING

Washing machines

with EWM2000

Electronic Control: Delta

3 with Neat cabinet

Production: Porcia (IT)

(SW: W2C0145x)

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Contents

General characteristics ......................................................................................................................... 5

1

2 Control panel ........................................................................................................................................ 6

2.1 “FABRICS” button ........................................................................................................................... 7

2.2 “TEMPERATURE” button................................................................................................................ 7

2.3 “SPIN” button.................................................................................................................................. 8

2.4 “OPTION” buttons ........................................................................................................................... 9

2.4.1 “PREWASH” button............................................................................................................... 9

2.4.2 “RINSE HOLD” button or “NIGHT CYCLE” .......................................................................... 10

2.4.3 “SOAK” button..................................................................................................................... 10

2.4.4 “STAINS” button.................................................................................................................. 10

2.4.5 “ECONOMY” button ............................................................................................................ 10

2.4.6 “INTENSIVE” / “HEAVY SOIL” button.................................................................................. 10

2.4.7 “SHORT or VERY SHORT CYCLE - LIGHT SOIL” / “DAILY” button..................................... 11

2.4.8 “LEVEL OF SOILING” button............................................................................................... 11

2.4.9 "BIO" button ........................................................................................................................ 11

2.4.10 “HALF LOAD” button........................................................................................................... 11

2.5 “START/PAUSE” button................................................................................................................ 11

2.6 “SKIP/RESET” button.................................................................................................................... 12

2.7 “DELAYED START” button............................................................................................................ 12

2.8 Programme phase LEDs ............................................................................................................... 13

2.9 Display.......................................................................................................................................... 13

2.10 ON/OFF button ............................................................................................................................. 14

2.11 Exclusion of the buzzer at the end of the programme .................................................................... 14

3 Washing programmes......................................................................................................................... 15

3.1 Possible options for each programme............................................................................................ 15

4 Washing programmes charts.............................................................................................................. 16

4.1 Cotton 60°C (Jetsystem) ............................................................................................................... 18

4.2 Synthetics 40°C (Jetsystem) ......................................................................................................... 19

4.3 Hand wash 30º (Jetsystem)........................................................................................................... 20

4.4 “FUCS” ......................................................................................................................................... 21

4.4.1 Examples of operation of the unbalancing control function ................................................... 21

4.5 Spin cycles.................................................................................................................................... 23

4.5.1 SPIN MP_C0_INP_SECT.................................................................................................... 23

4.5.2 SPIN IMP_C0_SP_SECT.................................................................................................... 23

4.5.3 SPIN IMP5.......................................................................................................................... 23

4.5.4 SPIN IMP7.......................................................................................................................... 23

4.5.5 SPIN IMP4.......................................................................................................................... 24

4.5.6 SPIN IMP6-RINSE .............................................................................................................. 24

4.5.7 SPIN IMP6_INP_SECT ....................................................................................................... 24

4.5.8 SPIN IMP6_SP_SECT ........................................................................................................ 25

4.5.9 SPIN IMP6_QUICK............................................................................................................. 25

4.5.10 SPIN IMP_SR .....................................................................................................................25

4.5.11 SPIN IMPCF_01_AC ........................................................................................................... 26

4.5.12 SPIN IMPCF_01_DC........................................................................................................... 26

4.5.13 SPIN IMPCF_QUICK .......................................................................................................... 26

5 Technical characteristics..................................................................................................................... 27

5.1 EWM2000 Electronic control unit................................................................................................... 27

5.1.1 Microprocessor memories (main PCB) ................................................................................ 28

5.2 Analog pressure switch (electronic) ............................................................................................... 29

5.3 Instantaneous door safety device .................................................................................................. 30

Operation principle ............................................................................................................................. 30

5.4 Detergent dispenser ...................................................................................................................... 31

5.5 Power supply to the motor............................................................................................................. 32

5.5.1 AC/DC Converter ................................................................................................................ 32

5.6 Circulation pump ........................................................................................................................... 33

5.7 Heating......................................................................................................................................... 33

5.8 Drain cycle.................................................................................................................................... 33

6 Diagnostics and configuration system ................................................................................................. 34

6.1 Access to the diagnostics and configuration system ...................................................................... 34

6.2 Diagnostics system ....................................................................................................................... 35

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6.3 Display board diagnostics.............................................................................................................. 36

6.4 Diagnostics cycle .......................................................................................................................... 37

6.5 Alarms .......................................................................................................................................... 38

6.6 Reading the last alarm condition.................................................................................................... 39

6.6.1 Diagnostics cycle alarms ..................................................................................................... 39

6.7 Alarm codes.................................................................................................................................. 40

6.8 Canceling the last alarm condition ................................................................................................. 44

6.9 Configuration of the main PCB...................................................................................................... 45

6.9.1 Configuration code ..............................................................................................................46

6.9.2 Example of configuration..................................................................................................... 47

6.10 Exiting the diagnostics cycle.......................................................................................................... 48

6.11 Operating time counter.................................................................................................................. 48

6.11.1 Reading the operating time.................................................................................................. 48

7 DEMO Mode ...................................................................................................................................... 49

7.1 Setting demo mode....................................................................................................................... 49

7.2 Exiting demo mode ....................................................................................................................... 49

8 Accessibility to electronic control......................................................................................................... 50

8.1 Cover............................................................................................................................................ 50

8.1.1 Main PCB............................................................................................................................ 50

8.2 Control panel ................................................................................................................................50

8.2.1 Control/Display board.......................................................................................................... 50

9 Basic circuit diagrams......................................................................................................................... 51

9.1 Version with AC motor................................................................................................................... 51

9.2 Version with DC motor .................................................................................................................. 52

9.3 Key to circuit diagram.................................................................................................................... 53

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1 General characteristics

Washing machines with EWM2000 electronic control system:

- analog (electronic) pressure switch

- anti-foam control function

- unbalance control system FUCS

- jetsystem washing system

- "Total exchange" jetsystem rinse system

- spin speeds up to 1600 rpm

- commutator motor AC or DC with separate converter

- heating element in the tub, 1950W

- "Handwash" programme

- rinse hold/night cycle

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2 Control panel

The control panel fitted to the appliance may be different depending on:

Ö the control/display board

Ö different design of the panel (on the number of buttons, LEDs)

Ö the different configuration of the buttons

1. “FABRICS” button

2. “TEMPERATURE” button

3. “SPIN” button

4. “OPTIONS” button

5. “OPTIONS” button

6. “OPTIONS” button

7. “START/PAUSE” button

8. “SKIP/RESET” button

9. “DELAYED START” button

10. Programme phase indicator LEDs

11. Display window

12. ON/OFF button

13. Pilot lamp

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2.1 “FABRICS” button

Press this button to select the washing programme suitable for the
fabrics to be washed.
The LED corresponding to the selected washing programme lights.
The machine proposes the standard programme for the type of fabric
selected; a temperature and the maximum spin speed for the selected
programme are displayed, as well as the normal soiling level. However,
these parameters can be modified by pressing the corresponding buttons.
The display will also show the duration of the selected programme, which is
calculated according to the maximum load for each type of fabric, and the
START/PAUSE LED begins to flash.

The type of fabric can be modified at any time during the washing cycle; in this case, the phase currently
being performed will restart from the beginning.

The table below shows the options that the user can select for the configuration of each model.

LED Configuration type A Configuration type B Configuration type C

L1 Cotton Cotton Cotton
L2 Synthetics Synthetics Synthetics
L3 Delicate fabrics Delicate fabrics Delicate fabrics
L4 Wool Hand wash Wool
L5 Hand wash Mini ------

Hand wash

If this programme is selected (certain models only), the washing cycle will be especially delicate, and can be
used for fabrics labelled “Hand Wash”.

2.2 “TEMPERATURE” button

If a temperature different from the standard temperature proposed by
the appliance is desired, press this button repeatedly to increase of
decrease the temperature. The corresponding LED will light.

The maximum temperature is 90°C for cotton, 60°C for synthetics,
40°C for delicate fabrics, wool and hand washing.

The temperature button is effective only after the type of fabric has
been selected.
The temperature can be modified at any time during the washing cycle
(“PAUSE”); in this case, the phase will restart from the beginning.

LED Configuration type A Configuration type B Configuration type C

L6 90º C 90º C 90º C
L7 60º C 60º C 60º C
L8 40º C 50º C 50º C
L9 30º C 30º C 40º C

L10 Cold wash Cold wash 30º C

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2.3 “SPIN” button

Press this button to reduce the speed of the intermediate and final spin
cycles as shown in the table below. This button is effective only after the
type of fabric has been selected; the spin speed can be modified until the
end of the rinses.

Button LED Function 1 Function 2 Function 3 Function 4 Function 5 Function 6

L11 Max speed Max speed 900 g/’ Max speed Max speed 900 g/’
L12 1200 g/’ 900 g/’ 700 g/’ 1200 g/’ 900 g/’ 700 g/’
L13 900 g/’ 700 g/’ 600 g/’ 900 g/’ 700 g/’ 600 g/’

3

L14 700 g/’ 500 g/’ 500 g/’ 700 g/’ 500 g/’ 500 g/’

L15

Rinse hold /

Night cycle

COTTON cycles rinses

In COTTON cycles, this option also modifies the structure of the rinsing phases according to the speed of
the intermediate spin:

Intermediate spin

TR2 Traditional rinse at second level

TE "total exchange" (virtual tank) jetsystem rinse

Rinse hold /

Night cycle

(rpm)

<850

850-950

1000-1150

>1150

Rinse hold /

Night cycle

No spin No spin No spin

Jetsystem washing

st

rinse 2nd rinse Last rinse

1

TR2 TR2 TR2

TE TR2 TR2
TE TE TR2
TE TE TE

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2.4 “OPTION” buttons

The number and type of OPTIONS buttons vary according to the model.

Matrix of the functions of the various buttons:

Button 4 5 6

LED L16 L17 L18 L19 L20 L21 L22 L23 L24

Function 1

Function 2

Function 3

Prewash Soak

Prewash

Extra/Super

Rinse

Prewash Half Load

Rinse

Function 4

Prewash

hold/Night

cycle

Function 5

Function 6

Function 7

Function 8

Function 9

Function

10

Function

11

Function

12

Function

13

Function

14

Function

15

Prewash Economy

Intensive Normal

Prewash Soak

Prewash

Prewash Half Load

Prewash Stain Half Load

Prewash Economy Stain

Prewash

Prewash Bio

Bio

2.4.1 “PREWASH” button

This option selects an additional prewash phase at 30º C at the beginning of the cycle. It can be selected
only during the programme selection phase and is not available in WOOL cycles.
Moreover this option cannot be selected together with the STAINS or SOAK options.

Short / Very

short

Short / Very

short

Short / Very

short

Short / Very

short

Short / Very

short

Short / Very

short

Extra/Super

Rinse

Short / Very

short

Prewash Soak

Prewash

Extra/Super

Rinse

Extra/Super

Rinse

Half Load

Prewash Half Load Stain

Prewash Stain Economy

Extra/Super

Rinse

Extra/Super

Rinse

Extra/Super

Rinse

Economy

Short / Very

short

Bio

Extra/Super

Rinse

Short / Very

short

Bio

Rinse

hold/Night

cycle

Economy

Short / Very

short

Rinse

hold/Night

cycle

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2.4.2 “RINSE HOLD” button or “NIGHT CYCLE”

This function is available for COTTON, SYNTHETICS, DELICATES and WOOL cycles; in certain models, it
is combined with the SPIN button.
When this option is selected, the appliance will not drain the tub at the end of the final rinse and at the end
of the cycle, the LED corresponding to the START/PAUSE button (and, where applicable, the phase
indicator LED) will begin to flash to indicate to the user that the water in the tub must be drained.

Ö In COTTON cycles it adds three rinses and eliminates all
Ö In SYNTHETICS cycles it adds a rinse and eliminates all
Ö In all OTHER cycles it eliminates all

spin cycles

spin cycles

spin cycles

The following options can be selected to complete the programme:

 drain and spin: Press START/PAUSE. The appliance will drain the tub and then perform a spin cycle at

the maximum speed for the programme previously selected;

 select a spin speed using the SPIN button and then press START/PAUSE;
 drain only: Press SKIP/RESET once, until the DRAIN LED lights, then press START/PAUSE.

2.4.3 “SOAK” button

This option can be selected in COTTON, SYNTHETICS and DELICATE FABRICS cycles (but only in the
programme selection phase), and adds a pre-wash at the beginning of the cycle which consists of the
following phases:

Ö water fill and heating at 30º C

Ö a soak phase of about 30 minutes. The DELAYED START button (if featured) can be used to select a

SOAK time from 1 hour to 24 hours. The delay time will be shown in hours in the display window during
the selection phase; after the cycle has been started, the delayed-start countdown will be shown in
hours until it falls below 10 hours, after which the time will be shown in hours and minutes.

Ö the water is drained and the appliance passes to the subsequent phase.

The SOAK option cannot be selected together with the STAINS and PRE-WASH options.

2.4.4 “STAINS” button

The STAINS option can be selected in COTTON, SYNTHETICS and DELICATE FABRICS cycles with

temperatures of 40°C or higher, and can also be selected during the washing phase.

This option adds the STAINS phase, in which special additives are introduced into the tub from the pre-wash

compartment after the BIO phase with heating to 40°C, and an additional 10 minutes of motor movement.

The STAINS option cannot be selected together with the PRE-WASH/SOAK, INTENSIVE and QUICK
/DAILY options.

2.4.5 “ECONOMY” button

This option is available only in cycles for COTTON and SYNTHETICS with temperatures of 30°C or higher.

The ECONOMY option reduces the temperature of the programme and increases the drum movement
phases after the heating phases.
The ECONOMY option cannot be selected together with the INTENSIVE / HEAVY / LIGHT SOILING and
QUICK CYCLE / DAILY options.

2.4.6 “INTENSIVE” / “HEAVY SOIL” button

This option can be selected during the entire duration of the washing programme, and is available only in
cycles for COTTON and SYNTHETICS.
This option increases the phases of drum movement after the heating phases.
The INTENSIVE / HEAVY SOIL option cannot be selected together with the STAINS, QUICK and
ECONOMY options.

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2.4.7 “SHORT or VERY SHORT CYCLE - LIGHT SOIL” / “DAILY” button

This option can be selected during the entire duration of the wash programme, and is available in cycles for
COTTON, SYNTHETICS and DELICATE FABRICS: it reduces the duration of the cycle.
When this option is selected in COTTON and SYNTHETICS cycles, it modifies the rinse sequence as well
as reducing the times: one rinse is eliminated, and the water fill level in the remaining rinses is increased.
It cannot be selected together with STAINS, INTENSIVE and ECONOMY options.

2.4.8 “LEVEL OF SOILING” button

This option can be selected during the entire duration of the washing programme.
The standard programme is set for NORMAL soiling. By pressing this button, the level of soiling can be
modified:

⇒ HEAVY / INTENSIVE (this option can be selected only in cycles for COTTON and SYNTHETICS)
⇒ LIGHT - SHORT CYCLE (this option can be selected only in cycles for COTTON, SYNTHETICS and

DELICATE FABRICS)
The functions of these options are as described for the corresponding individual buttons.

2.4.9 "BIO" button

This option can be selected only after selecting the type of fabric, and can also be selected during the
washing phase. The BIO option can be selected only in cycles for COTTON and SYNTHETICS with

temperatures of 40°C or higher.
The BIO option adds a 10-minute phase of motor movement after heating to 40°C, and is designed to

activate the enzymes contained in the detergent.

2.4.10 “HALF LOAD” button

This option can be selected in the COTTON cycles on traditional (i.e. non-Jetsystem) washing machines,
and reduces the number of rinse cycles by one.

2.5 “START/PAUSE” button

♦ START: After selecting the programme and the desired options, press

the START button to start the programme. The LED positioned above the
button will cease flashing and remain lit. If a delayed start time has been
selected, the countdown will commence; the countdown will be shown on
the display.

♦ PAUSE: When the button is pressed again, the programme currently being

performed is interrupted.

The LED above the button will start to flash. When the cycle is paused, the

door LED switches off and the door can be opened on condition that:

- the machine is not performing a heating phase

- the water level is not high

- the drum is not in movement
When the appliance is paused, the programmes can be modified as follows:

→ The structure can be changed or the programme cancelled (SKIP/RESET button). In this case, the

water (and detergent) will not be drained and the new cycle will begin with water in the tub. If it is preferred
to restart the new cycle without saving water and detergent, it is necessary first to select a drain phase and
then the new programme.

→ The FABRICS and the TEMPERATURES can be modified only during the washing phase; in this case,

the cycle will be restarted from the beginning.

→ The SPIN can be modified before the start of the final spin cycle.
→ All the cycle OPTIONS can be modified before the commencement of the phase to be modified.
→ DRYING selections can be modified before the starting of the drying phase.

To re-start the cycle, press the START/PAUSE button again.

♦ Water drain and spin cycle: after the "rinse hold" phase press this button to start the cycle with the

drain and final spin again.

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2.6 “SKIP/RESET” button

Thus button performs two functions:

♦ Cancels the programme: Press the button until the cycle LEDs switch off. The display will show three

flashing hyphens.

♦ Selects special programmes: In the programme selection and execution phases, this button can be

used to cancel certain phases of the programme so that the appliance effectively performs a special
cycle. In the programme execution phase, the appliance must be paused.

The cycle normally performed by the appliance consists of the following phases:
Wash » Rinses » Spin (drying for washer-dryers)

Ö When the button is pressed once:
Rinses » Spin (drying for washer-dryers)

Ö When the button is pressed twice:
Spin (drying for washer-dryers)

Ö When the button is pressed three times:
Drain

ÖWhen the button is pressed four times:
Cancel programme

If the PRE-WASH option is selected, it can be cancelled by pressing this button, so that the appliance
performs the wash only.

2.7 “DELAYED START” button

This button can be used to delay the start of the programme for up to 24
hours. The selected delay time is shown on the display for approximately 5
seconds, after which the duration of the programme is displayed.
The DELAYED START option must be selected after selecting the
programme and before pressing START/PAUSE.
The delay countdown is decremented at intervals of one hour, and is shown
on the display.

To modify or cancel the delayed-start time:

- press START/PAUSE to set the appliance to PAUSE.

- press the DELAYED START button until the display shows the new delay time or 0h.

- press START/PAUSE again.
The porthole door remains locked during the entire delayed-start period (the door pilot lamp lights).
If it is necessary to open the porthole door, set the appliance to PAUSE mode. After re-closing the door,
press START/PAUSE.
If the SOAK option has been selected, the delay time becomes the soak time.

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2.8 Programme phase LEDs

When the programme has been selected, the LEDs
corresponding to the various phases in the programme light.

When the programme starts, only the LED corresponding to the
current phase remains lit.

LED Colour Models with Display Models without Display

L26
L27
L28
L29
L30
L31
L32
L33

Green -- Door Prewash Door
Green Prewash Prewash Wash Wash
Green Wash Wash Rinses Wash
Green Rinses Rinses Rinse hold Rinses
Green Spin Spin Spin Spin
Green Drain Drain Drain Drain

Orange Filter Clogged Filter Clogged

Green -- -- End End

Door LED

The following table shows the door LED the function:

Led Status Meaning

On While the cycle is performing with the possibility to open the door (in pause

mode)
Flashing Cycle in pause mode without the possibility to open the door (closed door)
Off While the cycle is performing without the possibility to open the door (in

pause mode) or door open

2.9 Display

The display shows the following information:

Ö Three flashing hyphens: when a programme is cancelled by

pressing the SKIP/RESET button. The hyphens will also be displayed
when the ON/OFF button is pressed to switch the appliance on, but
only if the cycle selected previously has been cancelled.

Ö The duration of the washing programme is displayed when the

programme has been selected. This time corresponds to the time

necessary for the maximum wash load.
When the programme is started (i.e. after pressing START/PAUSE),
the time is decremented at intervals of one minute.

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Ö Rinse hold: the appliance stops with water in the tub at the end of

programmes for which the RINSE HOLD option has been selected;

the display shows a zero (fixed, not flashing)

Ö End of cycle: indicated by a zero (flashing) and, at the same time,

the door pilot lamp switches off. The zero re-appears when the

appliance is switched on again, if the previous programme has not

been cancelled. It may occur, when the appliance is switched on for

the first time, that a flashing zero is shown on the display and the

acoustic signals are activated. This is due to the fact that the machine

has performed a washing cycle during testing in the factory which has

not been cancelled on completion.

Ö Delayed start, which is selected using the DELAYED START button.
The countdown starts when the START/PAUSE button is pressed,

and is decremented at intervals of one hour.

Ö An incorrect option selection is signalled by Err on the display if the

function selected is not compatible with the programme. The buzzer

also sounds when an incorrect option is selected

Ö An alarm code indicates a machine malfunction

2.10 ON/OFF button

Press the ON/OFF button to switch the appliance ON. The display
shows three flashing hyphens or a flashing zero. Press the same
button to switch the appliance OFF.

The ON/OFF button is a bipolar switch button, and is not part of the
display board.

2.11 Exclusion of the buzzer at the end of the programme

By pressing the "TEMPERATURE (2)" and "SPIN (3)"
buttons at the same time (or the temperature button with
button 4) it is possible to deactivate the buzzer sound which
indicates the end of the programme; by repeating this
operation the buzzer will be activated again.
This function is always available and is memorized until it is
modified.

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3 Washing programmes

Programme Temperature (°C) No. of rinses Spin *

COTTON
SYNTHETICS
DELICATES
WOOL
HAND WASH
PROGRAMME MINI, 30º / 30 min.

* see spin cycle chapter

3.1 Possible options for each programme

Options Cotton Synthetics Delicates Wool Mini

90°C
60°C

50°C / 60 Eco

40°C
30°C
Cold

>900 g/’

900 g/’
700 g/’
500 g/’

No spin

Rinse hold / night cycle

Prewash

Stains

Intensive/

Heavy soil

Daily

Short/light

Economy

Bio

Extra Rinse / Super

rinse

Delayed Start

⊗ standard functions X options

X
X X X
X X X

⊗ ⊗

X X
X X X X X

⊗

X
X X
X X X X X

X X X X
X X X X X
X X X
X X X

X X

X X
X X X
X X
X X

X X X

X X X X X

⊗

Cold ÷ 90°
Cold ÷ 60°
Cold ÷ 40°
Cold ÷ 40°
Cold ÷ 40°
Cold ÷ 60°

X X X

⊗ ⊗ ⊗

⊗

3 IMPCF_01
3 IMP5
3 IMP7
3 IMP4
3 IMP4
2 IMP7

⊗

X

⊗

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4 Washing programmes charts

Key to programmes

Description

Calibration

mm H2O

OFF

ON

LEV

ELV2
ELV3

ELV2 ELV3

NR

VT

Dis

‘

“

Tout

Code Pause (sec) Movement (sec) Speed (rpm)
D_MOV
E_MOV

E1_MOV

SE_MOV

N_MOV

PWL1_MOV
PWL3_MOV
PWL4_MOV
COLD_MOV

DRY_MOV
CR3_MOV
DLD_MOV

OFF

SE_MOV Movement:

Drain sub-phase for calibration of the electronic pressure switch

Level expressed in water mm (full/empty)

Pump off
Pump on
Pump on from one level of pressure switch

Water inlet valves
Prewash
Wash
Prewash + wash = softener

Refilling
Normal refilling
"Total exchange" refilling (virtual tank)
Refilling disabled

Minutes
Seconds
Max. time (timeout)

Motor movement

12 4 55

5 8 55
4 12 75
4 21 55/40

8 8 55
40 1 35
12 1 35
57 1 35

4 12 40
57 3 55

Unidirectional movement 80

Unidirectional movement 40

No movement 0

Levels

Pumps

Time

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VT movement during rinses in "jetsystem total exchange" COTTON programmes – Only for models
with circulation pump (jetsystem):

During these phases, in which the motor rotates at high speed, if the electronic pressure switch detects that
the water in the tub falls below a certain level, the following operations are performed:

Ö spin at 470 rpm (VT_MOV_CODE) to remove the water from the fabrics and therefore to increase the

level in the tub

Ö 5 seconds pause, during which the level is again checked and, if necessary, the solenoid valve is

activated in order to load water until the level is correct

Ö energetic movement (E) (with the circulation pump in operation)

These operations may be repeated up to a maximum of three times for each rinse

.

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4.1 Cotton 60°C (Jetsystem)

(W2C01450) Cotton 60 JETSYSTEM Intermediate spin 850-1000

N. Phase Description

Levels

(mm H2O)

0 CALIBRATION 35/15 OFF ON OFF Dis Tout 10'

1 Washing W ATER FILL 50/15 OFF OFF ELV2 OFF NR Tout 15'

2 MOVEMENT 50/15 OFF OFF ELV2 PWL3_MOV NR 1'
3 WATER FILL 90/60 OFF OFF ELV3 OFF NR Tout 15'

4 MOVEMENT 90/60 OFF OFF ELV3 COLD_MOV NR 5'
5 MOVEMENT ON OFF E_MOV Dis 1'
6 MOVEMENT OFF OFF E_MOV Dis 22''
7 MOVEMENT 80/55 OFF OFF ELV3 E_MOV NR 2'
8 MOVEMENT ON OFF E_MOV Dis 2'

9 HEATING+MOV. ON OFF E_MOV Dis 40 2'
10 HEATING 35/15 ON OFF ELV3 E_MOV NR 40 Tout 40'
11 HEATING+MOV. ON OFF E_MOV Dis 56 2'
12 HEATING 35/15 OFF OFF ELV3 E_MOV NR 56 Tout 40'
13 MOVEMENT ON OFF E_MOV Dis 2'
14 HEATING+MOV. OFF OFF E_MOV Dis 56 2'
15 HEATING 35/15 OFF OFF ELV3 E_MOV NR 56 Tout 40'
16 MOVEMENT ON OFF SE_MOV Dis 8'
17 MOVEMENT ON OFF N_MOV Dis 4'
18 MOVEMENT ON OFF SE_MOV Dis 18’-14'
19 WATER DRAIN OFF Lev OFF Dis Tout 10'

20

21 SPINNING OFF ON INP6_INP_SECT Dis Tout 20'
22 SPINNING OFF ON INP6_SP_SECT Dis Tout 20'

23 1st Rinse MOVEMENT OFF OFF CR3_MOV Dis 5''
24 WATER FILL 75/20 LEV OFF ELV3 CR3_MOV VT Tout 15'
25 MOVEMENT 35/25 ON OFF ELV 3 E_MOV NR 4’- 5'
26 MOVEMENT ON OFF E1_MOV Dis 2’- 3'
27 WATER DRAIN OFF Lev D_MOV Dis Tout 10'
28 SPINNING OFF ON IMP6_RINSE Dis Tout 20'

29 2nd Rinse MOVEMENT OFF OFF CR3_MOV Dis 5''
30 WATER FILL 75/20 LEV OFF ELV3 CR3_MOV NR Tout 15'
31 MOVEMENT 35/25 ON OFF ELV 3 E_MOV VT 4’-5'
32 MOVEMENT ON OFF E1_MOV Dis 3'
33 WATER DRAIN OFF Lev D_MOV Dis Tout 10'
34 SPINNING OFF ON IMP6_RINSE Dis Tout 20'

35 3rd Rinse MOVEMENT OFF OFF CR3_MOV Dis 5''
36 (softener) W ATER FILL 75/20 LEV OFF ELV2 ELV3 OFF NR Tout 15'
37 MOVEMENT 75/20 LEV OFF ELV2 ELV3 N_MOV NR 30''
38 MOVEMENT 75/20 LEV OFF ELV2 ELV3 OFF NR 5''
39 WATER FILL 100/80 LEV OFF ELV2 ELV3 N_MOV NR Tout 15'
40 MOVEMENT 100/80 LEV OFF ELV2 ELV3 N_MOV NR 6'

41 Spinning WATER DRAIN OFF Lev OFF Dis Tout 10'

42

43 SPINNING OFF ON

44 MOVEMENT OFF OFF N_MOV Dis 2'

TIME WATER

DRAIN

TIME WATER

DRAIN

OFF ON OFF Dis 30''

OFF ON OFF Dis 15''

Rec.

pump

Drain

pump

Elv / Det

comp.

Movement

IMPCF_01_(AC-

DC)

Re-

Temp.

filling

Dis Tout 20'

°C

Time

SOI/DT 2002-06 eb 18 599 35 27-35

4.2 Synthetics 40°C (Jetsystem)

(W2C01450) Synthetics 40 JETSYSTEM

N. Phase Description

0 CALIBRATION 15/5 OFF ON

1 Washing WATER FILL 45/15 OFF OFF ELV2 OFF NR Tout 15'

2 MOVEMENT 45/15 OFF OFF ELV2 PWL3_MOV NR 1'

3 W ATER FILL 100/65 LEV OFF ELV3 OFF NR Tout 15'

4 MOVEMENT 100/65 LEV OFF ELV3 N_MOV NR 7'

5 HEATING 100/65 ON OFF ELV3 N_MOV NR 39 Tout 40'

6 MOVEMENT 100/65 LEV OFF ELV3 N_MOV NR 8'

7 HEATING 100/65 ON OFF ELV3 E_MOV NR 40 Tout 40'

8 MOVEMENT 100/65 LEV OFF ELV3 D_MOV NR 3'

9 MOVEMENT 100/65 LEV OFF ELV3 E_MOV NR 7'
10 HEAT+MOV 100/65 ON OFF ELV3 D_MOV NR 40 3'
11 MOVEMENT 100/65 LEV OFF ELV3 E_MOV NR 6'
12 WATER FILL 175/90 LEV OFF ELV3 N_MOV NR Tout 1'
13 MOVEMENT LEV OFF N_MOV Dis 1'
14 MOVEMENT LEV OFF N_MOV Dis 1'
15 WATER DRAIN OFF Lev OFF Dis Tout 10'

16

17

18

19 1st Rinse MOVEMENT OFF OFF OFF Dis 5''
20 WATER FILL 175/90 LEV OFF ELV3 OFF NR Tout 15'
21 MOVEMENT 175/90 LEV OFF ELV3 N_MOV NR 2'
22 WATER DRAIN LEV Lev E_MOV Dis Tout 10'

23

24 2nd Rinse MOVEMENT LEV OFF OFF Dis 5''
25 WATER FILL 175/90 LEV OFF ELV3 OFF NR Tout 15'
26 MOVEMENT 175/90 LEV OFF ELV3 N_MOV NR 2'
27 WATER DRAIN OFF Lev E_MOV Dis Tout 10'
28 SPINNING OFF ON IMP_C0_INP_SECT Dis Tout 20'
29 SPINNING OFF ON IMP_C0_SP_SECT Dis Tout 20'
30 3rd Rinse MOVEMENT OFF OFF OFF Dis 5''

31 (softener) WATER FILL 100/65 OFF OFF

32 MOVEMENT 100/65 OFF OFF

33 MOVEMENT 100/65 OFF OFF

34 WATER FILL 175/90 LEV OFF

35 MOVEMENT 175/90 LEV OFF

36 MOVEMENT 175/90 LEV OFF

37 Spinning WATER DRAIN OFF Lev OFF Dis Tout 10'

38

39 SPINNING OFF OFF IMP5 Dis Tout 20'
40 MOVEMENT OFF OFF N_MOV Dis 1'

TIME WATER

DRAIN

TIME WATER

DRAIN

TIME WATER

DRAIN

TIME WATER

DRAIN

TIME WATER

DRAIN

Levels

(mm H2O)

Rec.

pump

OFF ON OFF Dis 30''

OFF ON E_MOV Dis 30''

OFF ON E_MOV Dis 1'

LEV ON E_MOV Dis 2'

OFF ON OFF Dis 15''

Drain

pump

Elv / Det

comp.

ELV2
ELV3
ELV2
ELV3
ELV2
ELV3
ELV2
ELV3
ELV2
ELV3
ELV2
ELV3

Movement Refilling

OFF Dis Tout 10'

OFF NR Tout 15'

N_MOV NR 30''

OFF NR 5''

OFF NR Tout 15'

N_MOV NR 2'

N_MOV NR 3'

Temp.

°C

Time

SOI/DT 2002-06 eb 19 599 35 27-35

4.3 Hand wash 30º (Jetsystem)

(W2C01450) Handwash 30 JETSYSTEM

N. Phase Description

0 CALIBRATION 15/5 OFF ON OFF Dis Tout 10'

1 Washing WATER FILL 45/15 OFF OFF ELV2 OFF NR Tout 15'

2 MOVEMENT 45/15 OFF OFF ELV2 PWL3_MOV NR 1'

3 WATER FILL 115/50 LEV OFF ELV3 OFF NR Tout 15'

4 MOVEMENT 115/50 LEV OFF ELV3 PWL4_MOV NR 4'

5 HEATING 115/50 ON OFF ELV3 PWL4_MOV NR 29 Tout 40'

6 MOVEMENT 115/50 LEV OFF ELV3 PWL4_MOV NR 2'

7 HEAT+MOV 115/50 LEV OFF ELV3 PW L4_MOV NR 30 14'

8 WATER DRAIN OFF Lev OFF Dis Tout 10'

9

10 1st Rinse MOVEMENT OFF OFF OFF Dis 5''
11 WATER FILL 175/90 LEV OFF ELV3 OFF NR Tout 15'
12 MOVE MENT 175/90 LEV OFF ELV3 PW L4_MOV NR 3'
13 WATER DRAIN OFF Lev OFF Dis Tout 10'

14

15 2nd Rinse MOVEMENT OFF OFF OFF Dis 5''
16 WATER FILL 160/80 LEV OFF ELV3 OFF NR Tout 15'
17 MOVE MENT 160/80 LEV OFF ELV3 PW L4_MOV NR 3'
18 WATER DRAIN OFF Lev OFF Dis Tout 10'

19

20 3rd Rinse MOVEMENT OFF OFF OFF Dis 5''
21 (softener) W ATER FILL 115/50 OFF OFF ELV2 ELV3 OFF NR Tout 15'
22 MOVE MENT 115/50 OFF OFF ELV2 ELV3 N_MOV NR 30''
23 WATER FILL 175/90 LEV OFF ELV2 ELV3 OFF NR Tout 15'
24 MOVE MENT 175/90 LEV OFF ELV2 ELV3 PWL4_MOV NR 5'

25 Spinning WATER DRAIN OFF Lev OFF Dis Tout 10'
26 SPINNING OFF ON IMP4 Dis Tout 20'
27 MOVEMENT OFF OFF N_MOV Dis 1'

TIME WATER

DRAIN

TIME WATER

DRAIN

TIME WATER

DRAIN

Levels

(mm H2O)

OFF ON OFF Dis 1'

OFF ON OFF Dis 1'

OFF ON OFF Dis 1'

Rec.

pump

Drain

pump

Elv / Det

comp.

Movement

Refilling Temp.

°C

Time

SOI/DT 2002-06 eb 20 599 35 27-35

4.4 “FUCS”

(Fast Unbalance Control System)

The control procedure for unbalanced loads is performed dynamically, before each spin cycle, as follows:

• The phase starts with the inversion rotation of the drum at a speed of 55 rpm.

• The phase begins at a speed of 55 rpm; the speed can never fall below this threshold, otherwise the

check is repeated.

• At intervals of 400 ms, the balance is calculated and compared with predetermined limits. If the value is

less than the lower limit, the speed of the drum is increased by 2 rpm; if the value is higher, the speed of
the drum is reduced by 2 rpm. The reduction in the speed of the drum distributes the washing correctly;
this procedure is repeated until the wash load is completely balanced.

• Correct balancing of the wash load is achieved at a speed of 115 rpm, after which the spin cycle begins.

The Unbalancing Control function takes place in four steps: each phase is characterised by a value of
unbalancing threshold and by a time out (max. time)

Step 0: The zero phase has a preset unbalancing threshold; if correct balancing is achieved, the appliance

performs a spin pulse at 470 rpm, preceded by 5 sec at 100 rpm and followed by phase 1;
otherwise, after a maximum of 60 seconds the function passes to step 1.

Step 1: The first phase has a different preset unbalancing threshold; if correct balancing is achieved, the

appliance performs the spin cycle, preceded by 5 sec at 100 rpm. Otherwise, after a maximum of
120 seconds, the function passes to step 2.

Step 2: The second phase is characterised by a different unbalancing threshold: if correct balancing is not

achieved within 60 seconds, the function passes to step 3.

Step 3: The third phase has a preset unbalancing threshold: if correct balancing is achieved within 90

seconds a spin pulse is performed, preceded by 5 sec at 100 rpm and followed by a new step 1;
otherwise, after a maximum of 90 seconds, the function passes to a new step 1.

If the unbalancing value remains excessive at the second attempt during step 3, the spin cycle is

skipped; if the balancing is not correct a reduced spin is performed.

4.4.1 Examples of operation of the unbalancing control function

The following examples refer to an appliance with a final spin speed at 1000 rpm.

Load correctly balanced

 Low speed

 FUCS phase 0 and pulse

 Low speed

 FUCS phase 1

 Normal spin

SOI/DT 2002-06 eb 21 599 35 27-35

Load balanced after few attempts:

A: Low speed
B: FUCS phase 1
C: Normal spin

Load balanced after second phase:

A: Low speed
B: FUCS phase 1 with pulse at 470 rpm
C: Low speed
D: FUCS phase 2
E: Normal spin

Load balanced after second phase and anti-foam
control function:

A: Low speed
B: FUCS phase 1 with pulse at 470 rpm
C: Low speed
D: FUCS phase 2
E: Spin with anti-foam function
F: Low speed
G: FUCS phase 3
H: Normal spin

Load slightly unbalanced after third phase:

A: Low speed
B: FUCS phase 1 with pulse at 470 rpm
C: Low speed
D: FUCS phase 2
E: FUCS phase 3
F: Reduced spin

Load unbalanced after third phase:

A: Low speed
B: FUCS phase 1 with pulse at 470 rpm
C: Low speed
D: FUCS phase 2
E: FUCS phase 3
F: the spin phase is skipped and the appliance passes

to the subsequent phase

SOI/DT 2002-06 eb 22 599 35 27-35

4.5 Spin cycles

4.5.1 SPIN MP_C0_INP_SECT

• prewash cotton and synthetics, penultimate synthetics rinse (1

4.5.2 SPIN IMP_C0_SP_SECT

• prewash cotton and synthetics, penultimate synthetics rinse (2

4.5.3 SPIN IMP5

• final synthetics

4.5.4 SPIN IMP7

• final delicates

st

part)

nd

part)

SOI/DT 2002-06 eb 23 599 35 27-35

4.5.5 SPIN IMP4

• final wool

4.5.6 SPIN IMP6-RINSE

• intermediate cotton rinses (the speed can be configured)

4.5.7 SPIN IMP6_INP_SECT

• cotton final wash phase (1

st

part)

SOI/DT 2002-06 eb 24 599 35 27-35

4.5.8 SPIN IMP6_SP_SECT

• cotton final wash phase (2

nd

part)

4.5.9 SPIN IMP6_QUICK

• cotton final and intermediate wash phase with “short” option

4.5.10 SPIN IMP_SR

• intermediate with “super-rinse” option

SOI/DT 2002-06 eb 25 599 35 27-35

4.5.11 SPIN IMPCF_01_AC

• cotton final with AC motors

4.5.12 SPIN IMPCF_01_DC

• cotton final with DC motors

4.5.13 SPIN IMPCF_QUICK

• cotton final with “short” option

SOI/DT 2002-06 eb 26 599 35 27-35

5 Technical characteristics

5.1 EWM2000 Electronic control unit

1. Main PCB

2. Control/Display Board

The main PCB performs the following functions:

• acquisition of the wash cycle settings via the control/display board.

• control of the water level in the tub via the electronic pressure switch and the safety pressure

• control of the temperature of the washing solution via an NTC sensor.

• control of the speed of rotation of the motor via a signal from the tachometric generator.

• powering of all the electrical components in the washing machine and control of the wash cycle

SENSORS

switch.

DISPLAY BOARD

Microprocessor

MAIN PCB

Microprocessor

ELECTRICAL

LOADS

SOI/DT 2002-06 eb 27 599 35 27-35

5.1.1 Microprocessor memories (main PCB)

The overall structure of the microprocessor memory on the main PCB is subdivided into three sections:

ROM

RAM

EEPROM

POWER FAIL

&

MACHINE

STATUS

GENERAL INSTRUCTIONS

PROGRAMME VARIABLES

CYCLE

PARAMETERS

CONFIGURATION

MACHINE

ROM This area of memory contains the software with the general instructions that control the operation

of the appliance, such as those of the electrical components and alarms. The ROM is set up by
the manufacturer of the microprocessor, and cannot be modified.

RAM This part of memory contains all the variables used during the execution of the wash programme,

which are written in dynamic format. The RAM can be read using a DAAS interface.

EEPROM This area of memory contains:

Ö the data necessary to restart the appliance in case of a power failure.

Ö the parameters for the wash cycle, such as water fill level, speed and type of motor movement, and the

temperature during the various phases of the wash cycle. Once written, this data is protected and,
normally, can be read only using a DAAS interface

Ö data relative to the configuration of the appliance, such as the speed of the final spin phase, the volume

of the tub, the type of washing system, etc. This data may be entered either via a DAAS interface or via
the control/display board.

ENTERING DATA INTO THE EEPROM

All the data is entered into the EEPROM on the production line of the washing machines using a computer
with a DAAS interface.

In the field, the configuration only can be modified using a combination of buttons on the control/display
board.

SOI/DT 2002-06 eb 28 599 35 27-35

5.2 Analog pressure switch (electronic)

The electronic pressure switch is an analog device that controls the water level in the tub. It is directly
connected to the main electronic PCB.

1. air inlet hose

2. diaphragm

3. coil

4. electronic circuit
(oscillator)

5. core

6. spring

7. calibration screw

8. connector

The pressure switch is connected by a hose to
the pressure chamber.
When the tub is filled with water, the pressure
created inside the hydraulic circuit expands the
diaphragm. This in turn modifies the position of
the core inside the coil, thus changing the
inductance and the frequency of the oscillating
circuit.
The electronic PCB, according to the
frequency, recognizes the quantity of the
water in the tub.

Frequency variation according to
pressure

SOI/DT 2002-06 eb 29 599 35 27-35

5.3 Instantaneous door safety device

Certain models are fitted with an instantaneous door
safety device; this means that the door can be opened
as soon as the drum stops rotating.

1. PTC solenoid protector

2. Solenoid

3. Lever mechanism

4. Cam

5. PTC - bimetal

6. Electrical contacts (main switch)

7. Latch

Operation principle

When the ON/OFF button is pressed to switch the appliance on, the bimetal PTC is powered; the cam is in

a position which prevents the latch from moving outwards.

When the START/PAUSE button is pressed to start the programme, the main PCB transmits a signal

(duration 20 msec) to the solenoid (at least 6 seconds after the appliance is switched on). The solenoid

causes the cams to rotate one position. This raises the latch which holds the cursor of the door safety

device in position and, at the same time, closes the contacts of the main switch, which thus powers all the

components in the appliance.

At the end of the programme, the board transmits two signals (at an interval of 200 msec and having the

same 20 msec duration):

- the first signal moves the cams a further position, though without releasing the latch.

- the second signal (which is transmitted only if the system functions correctly) moves the cams another
position, which causes the latch to retract, thus releasing the safety device. At the same time, the
contacts of the main switch are opened.

Conditions of door opening

Before transmitting the door aperture signal, the main PCB checks that the following conditions are
observed:

• the drum must be stationary (i.e. no signal received from the tachometric generator)

• the water must not be above the lower lip of the door

• the temperature of the water must be not more than 40°C.

Automatic release device
In case of a power failure, or if the appliance is switched off using the ON/OFF button, or if the solenoid
should malfunction, the bimetal PTC cools over a period varying from 55 seconds to 4 minutes (at a
temperature of 65°C), after which the door lock is released.

Solenoid protection
A PTC is connected in series with the solenoid with the purpose of limiting the current (and thus possible
overheating) in the following cases:

• TRIAC on the main PCB short-circuited

• Repeated actioning of the START/PAUSE button (more than 10 times)

1. Main switch

2. Solenoid

3. PTC solenoid protection

4. Bimetal PTC

5. Connector

SOI/DT 2002-06 eb 30 599 35 27-35

5.4 Detergent dispenser

Water is ducted into the detergent dispenser by a solenoid valve with
one inlet and two or three outlets. Some models are fitted with a second
solenoid valve for hot water fill.
The same detergent dispenser is used in all models; the only difference
lies in the water intake nozzle. The detergent dispenser may consist of
three or four compartments.

1. Solenoid valve

2. Detergent dispenser

• The detergent contained in the “a” compartment filled at the start of

the pre-wash.

• In some models, with “stains” option, the “a” compartment can be

used alternatively to contain the stain remover, which is filled during
the wash phase.

Water fill to pre-wash compartment

(pre-wash solenoid)

Water fill to wash compartment

(wash solenoid)

• The “b” compartment is used to contain the detergent that is filled at

the start of the wash cycle.

Water fill to softener compartment

(pre-wash and wash solenoids)

• The “d” compartment is used to contain the softener that is filled at

the start of the last rinse

Water fill to bleach compartment

(bleach solenoid)

• In models with 4-compartment dispenser water is filled into “c”

compartment at the start of the last rinse.

Hot water fill

(hot water/wash solenoids)

• In models with hot water solenoid the hot water/wash solenoids are

actioned simultaneously to fill water mixed in the wash compartment.

SOI/DT 2002-06 eb 31 599 35 27-35

5.5 Power supply to the motor

The main PCB powers the motor directly via a TRIAC. Reversal of the direction of the motor is effected by
two relays that vary the connection between the rotor and the stator.
A third relay powers the stator in half- or full-range operation, depending on the spin speed.

The speed of the motor is controlled by a signal received from the tachometric generator.

During the spin cycles, the microprocessor checks for an unbalanced load and for excessive foam.

5.5.1 AC/DC Converter

This component, which is fitted to certain models only
convert the alternating current generated by the TRIAC on the
main PCB into a direct current to power the drum motor.

L1 1.2 mH R1 68 KΩ
D1 25A/600V R2-R3 100 Ω
C1-C2 47µF

, serves to

SOI/DT 2002-06 eb 32 599 35 27-35

5.6 Circulation pump

In Jetsystem models, the circulation pump is powered directly by the main PCB via a TRIAC.

5.7 Heating

The heating element is powered directly by the main PCB via a relay.
As a safety feature, a traditional dual-level pressure switch (anti-boiling 1 and anti-boiling 2) is connected in
series to the heating element.

The temperature is controlled directly by the main PCB via an NTC temperature sensor.

1. NTC resistor

2. Metallic capsule

3. Terminals

4. Plastic casing

TEMPERATURE

(ºC)

20
60
80

RESISTANCE (Ω)

Rated Maximum Minimum

6050
1250

640

6335
1278

620

5765
1222

660

5.8 Drain cycle

The drain pump is powered directly by the main
PCB via a TRIAC.

SOI/DT 2002-06 eb 33 599 35 27-35

6 Diagnostics and configuration system

6.1 Access to the diagnostics and configuration system

Using a single procedure, it is possible to access both the diagnostics and configuration systems. After
accessing this function, the following operations can be performed:

 control of the operation of each of the components in the appliance
 analysis of alarm conditions
 configuration of the main PCB

To access the system:

Ö press the SKIP/RESET button to cancel the programme previously selected and switch off the appliance
Ö press the START/PAUSE (7) button together with the SKIP/RESET (8) button and then, holding down

both buttons, press the ON/OFF button to switch on the appliance

Ö hold both buttons (START/PAUSE and SKIP/RESET) down until the buzzer sounds and the LEDs begin

to flash (about 4 seconds).

At this point, the display board is checked and the LEDs (and, if featured, the display window) light in
sequence.
If the main PCB has not been configured, it is possible only to perform the test on the display board and the
configuration procedure.

SOI/DT 2002-06 eb 34 599 35 27-35

6.2 Diagnostics system

The diagnostics system can be used to check the correct operation of all the components in the washing
machine.

After accessing the diagnostics routine, the display board is checked for correct operation. All the LEDs
(and, if featured, the display) light in sequence.

 Press the FABRICS button (1) to pass to the subsequent test phase (LED L1 lit).

 Press the FABRICS button again to increment the number of the phase controlled. After the last phase,

the display returns to its normal condition. The LED corresponding to the phase being tested lights (L1

→ L10).

 Press the TEMPERATURE button (2) to decrement the number of the phase controlled. After the last

phase, the display returns to its normal condition(L10 → L1).

DIAGNOSTIC CONTROL SYSTEM

PHASE LED lit Function tested

0 All (in sequence)
1 L1
2 L2
3 L3
4 L4

5 L5
6 L6

7 L7
8 L8
9 L9

10 L10

Tests the display board
Water fill to wash compartment in the dispenser
Water fill to pre-wash compartment in the dispenser
Water fill to conditioner compartment in the dispenser
Hot water fill or cold water fill to bleach compartment (certain
models only)
Heating (and, in Jetsystem models, circulation pump)
Rotation of drum at 250 rpm with water in the tub (test for leaks
from tub)
Drain and spin at maximum speed; pressure switches.

---­Displays the last alarm
Configuration of the main electronic board

SOI/DT 2002-06 eb 35 599 35 27-35

6.3 Display board diagnostics

After accessing the diagnostics system, the display board is checked for correct operation. All the LEDs
(and, if featured, the display) light in sequence.

When the various buttons are pressed, the corresponding LEDs light. The display shows a binary code
corresponding to the code of the button pressed and the buzzer sounds.
When the FABRICS or TEMPERATURE buttons are pressed, the corresponding LED lights for a moment
and the binary code is displayed. On completion of the test, the buzzer sounds and the system passes to the
previous or subsequent phase of the diagnostics cycle.

Table of button codes (models without display)

No. of button 0

L30

LED

L31
L32
L33

1 2 3 4 5 6 7 8

❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ●
❍ ❍ ❍ ❍ ● ● ● ● ❍
❍ ❍ ● ● ❍ ❍ ● ● ❍
❍ ● ❍ ● ❍ ● ❍ ● ❍

❍ LED OFF

● LED ON

The display board test is performed automatically even if the board is powered while not connected to the
main PCB and the programme selector.

SOI/DT 2002-06 eb 36 599 35 27-35

6.4 Diagnostics cycle

When the FABRICS (1) or TEMPERATURE (2) buttons are
pressed, the system passes to the previous or subsequent phase
of the diagnostics cycle. The LED corresponding to the phase of
the diagnostics cycle lights.

LED

3

4

Water fill to wash
compartment
Water fill to pre-wash
compartment

Function

tested

Water fill to conditioner

5

compartment

Hot water fill or fill to

6

bleach compartment
(certain models only)
Heating (and, in
Jetsystem models,
recirculation)

7

Check for leaks from
tub

8

Drain and spin, check

9

for pressure switch
congruency

(*) When the max. time is exceeded (timeout) error E61 is normally displayed (insufficient heating during

wash) since, although the heating is performed with the drum still, not every appliance can reach the

55°C temperature in 5 minutes.

In most cases this time is sufficient to control the heating; to reach the pre-set temperature, repeat this
phase without draining the water (skip for a while to another diagnostics phase and then go back to
heating control phase again).

If an alarm condition occurs during the course of the diagnostics cycle, the appliance stops and the display
or LEDs flash to indicate the alarm code.

Components

actioned

- door interlock

- wash solenoid

- door interlock

- pre-wash solenoid

- door interlock

- pre-wash solenoid

- wash solenoid

- door interlock

- hot water or bleach
solenoid

- door interlock

- (wash solenoid if level is
lower than the
antiboiling device)

- recirculation pump
(Jetsystem models)

- heating element

- door interlock

- (wash solenoid if level is
<150mm)

- motor

- door interlock

- drain pump

- motor

Operating

conditions

Door closed, water fill to anti­overflow level for max. 10 min
Door closed, water fill to anti­overflow level for max. 10 min
Door closed, water fill to anti­overflow level for max. 10 min

Door closed, water fill to anti­overflow level for max. 10 min

Door closed, water fill to above
anti-boiling level if not yet
reached, heating for max. 5
min or to 55°C (*)

Door closed, water fill above
150mm level if not yet reached,
motor until the drum reaches
250 rpm
Door closed, water drain, motor
movement, until maximum spin
speed is reached

Parameters

displayed

Water level in
mm
Water level in
mm
Water level in
mm

Water level in
mm

Water
temperature in
°C

Motor speed
(rpm)

Motor speed
(rpm ÷ 10)

SOI/DT 2002-06 eb 37 599 35 27-35

6.5 Alarms

The electronic control unit detects and recognizes any malfunctions in the operation of the appliance, in
which case an alarm condition is generated. Alarm conditions may be of three types:

 cycle paused
 cycle blocked
 current phase skipped

Only four alarm conditions are normally displayed to the user

Ö problems with water fill
Ö problems with drain
Ö door open
Ö communication error between the electronic boards, or configuration error

In the first three cases, the cycle is paused so that the user can, if possible, solve the problem. The code
showing the type of alarm flashes on the display.
In models without a display window, the last wash phase LED (end) flashes; the code relative to the type of
alarm flashes on the first four LEDs (and on the display).

For example, in the case of alarm E41 (door open), the display will show E40. In models not featuring a
display window, as well as the end-of-cycle LED which indicates error "E", the second LED indicates 4 in
binary code.
As can be seen from the general alarm code table, E4.. alarm conditions include all alarms relative to door
closure problems:

- E41: door open

- E42: door interlock malfunction

- E43, E44, E45: problems with main PCB or wiring

In the case of communication or configuration errors, the alarm is displayed immediately when the
appliance is switched on; in the event of configuration errors, the only possible action is to access the
diagnostics system.

The FILTER BLOCKED alarm is signalled by the corresponding LED (if featured) only at the end of the
cycle; EF0 flashes on the display.

:

SOI/DT 2002-06 eb 38 599 35 27-35

6.6 Reading the last alarm condition

The diagnostics system makes it possible to identify the last alarm condition which occurred during the
operation of the appliance. To read this alarm condition, after accessing the diagnostics system (see
"Access to the diagnostics / configuration system), press the FABRICS or TEMPERATURE buttons until
LED L9 lights.

The alarm condition is shown on the display, or the corresponding binary code flashes on the wash phase
LEDs.

Ö The first four LEDs indicate the first digit of the alarm code
Ö The second four LEDs indicate the second digit of the alarm code

For example, if an E41 alarm condition (door open) is generated, the display will show E41 or (if the
appliance does not feature the display window) the second LED in the first group (equivalent to 4 in binary
code) and the fourth LED in the second group (equivalent to1 in binary code) will flash.

If no alarm condition has occurred, E00 is displayed.

6.6.1 Diagnostics cycle alarms

If a malfunction should occur during the course of the diagnostics cycle, the relative alarm codes are
displayed. In this case, too, the wash phase LEDs (or the display) show the error code (flashing).

Binary codes

The table below shows how to convert the binary code displayed by the LEDs into the corresponding
decimal number.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

0

b C d E F

A

❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ● ● ● ● ● ● ● ●
❍ ❍ ❍ ❍ ● ● ● ● ❍ ❍ ❍ ❍ ● ● ● ●
❍ ❍ ● ● ❍ ❍ ● ● ❍ ❍ ● ● ❍ ❍ ● ●
❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ●

❍ LED off

● LED on

SOI/DT 2002-06 eb 39 599 35 27-35

6.7 Alarm codes

0:LED off 1: LED flashing

Alarm

code

E11

E21

E31

E32

E33

E34

E35

LED

L26 -29

0
0
0
1
0
0
1
0
0
0
1
1

0
0
1
1

0
0
1
1

0
0
1
1

0
0
1
1

LED

L30 - 33

0
0
0
1
0
0
0
1
0
0
0
1

0
0
1
0

0
0
1
1

0
1
0
0

0
1
0
1

Problems with water fill in wash phase
(maximum 10 minutes for each fill phase)

Problems with water drain in wash phase
(maximum 10 minutes for each drain phase)

Electronic pressure switch circuit faulty
(frequency of pressure switch signal out of
limits)

Incorrect calibration of electronic pressure
switch (electronic pressure switch level different
from 0-66 mm after initial calibration drain and
anti-boiling pressure switch on "empty")
Incongruence between level of electronic
pressure switch and level of anti-boiling
pressure switch 1 (duration of fault at least 60
seconds)
Incongruence between level of electronic
pressure switch and level of anti-boiling
pressure switch 2 (duration of fault at least 60
seconds)
Water level too high
(level of electronic pressure switch higher than
300mm for more than 15 seconds)

Description of fault

User
code

E10

E20

---

---

---

---

---

Effect Possible causes

Cycle PAUSED Tap closed or mains pressure insufficient; solenoid

valve; hydraulic circuit of pressure switches;
pressure switches; wiring; main PCB

Cycle PAUSED Drain hose obstructed; filter blocked; drain pump;

pressure switches; wiring; main PCB

Cycle blocked

Electronic pressure switch; wiring; main PCB

with door closed

Cycle PAUSED Tap closed or mains pressure insufficient; solenoid

valve; hydraulic circuit of pressure switches;
pressure switches; wiring; main PCB

Cycle blocked

with door closed

Cycle blocked

with door closed

Cycle blocked

with door closed

Hydraulic circuit of pressure switches; electronic
pressure switch; pressure switch; wiring; main PCB

Hydraulic circuit of pressure switches; electronic
pressure switch; pressure switch; wiring; main PCB

Solenoid valve; hydraulic circuit of pressure
switches; pressure switches; wiring; main PCB

and water drain

to 120mm

SOI/DT 2002-03 eb 40 599 35 27-35

Alarm

code

E36

E37

E38

E41

E42

E43

E44

E45

E51

E52

LED

L26 -29

0
0
1
1

0
0
1
1
0
0
1
1
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
0
0
1
0
1

0
1
0
1

LED

L30 - 33

0
1
1
0

0
1
1
1
1
0
0
0
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
1
0
1
0
0
0
1

0
0
1
0

Description of fault

"Sensing" circuit of anti-boiling pressure switch
1 faulty
(input signal to microprocessor always 0V or
5V)
"Sensing" circuit of anti-boiling pressure switch
2 faulty
(input signal to microprocessor always 0 - 5V)

Pressure chamber blocked
(water level does not vary for at least 30 sec.
during drum rotation)

Door open
(door delay interlock does not close after 15
seconds)

Problems with door closure
(door open during cycle for more than 15 sec.
or door closed after cycle for more than 3 min.)

TRIAC which powers the door interlock faulty
(incongruency between status of door interlock
"sensing" circuit and status of TRIAC)

"Sensing" circuit of door delay interlock faulty
(input signal to microprocessor always 0V or
5V)

"Sensing" circuit of door delay interlock triac
faulty (input signal to microprocessor always 0V
or 5V)

TRIAC which powers the motor short-circuited
(TRIAC short-circuit cut-out activated or motor
speed more than maximum speed)

No signal from tachometric generator on motor
(no signal after maximum time)

User

code

---

---

---

E40

E40

E40

---

---

---

---

Effect Possible causes

Cycle blocked

Main PCB

with door closed

Cycle blocked

Main PCB

with door closed

Heating phase

skipped

Pressure switch hydraulic circuit; pressure
switches, motor drive belt broken

Cycle paused Door open; door delay interlock; wiring; main PCB

Cycle paused Door delay interlock; wiring; main PCB

Cycle paused Wiring; main PCB

Cycle blocked Main PCB

Cycle blocked

Main PCB

with door closed

Cycle blocked

with door closed

Loss of insulation on motor winding/wiring; main
PCB

(after 5 attempts)

Cycle blocked

Motor; tachometric generator; wiring; main PCB

with door closed

(after 5 attempts,

the last after 20

sec)

SOI/DT 2002-03 eb 41 599 35 27-35

Alarm

code

E53

E54

E55

E56

E61

E62

E66

E71

LED

L26 -29

0
1
0
1

0
1
0
1

0
1
0
1

0
1
0
1

0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1

LED

L30 - 33

0
0
1
1

0
1
0
0

0
1
0
1

0
1
1
0

0
0
0
1
0
0
1
0
0
1
1
0
0
0
0
1

Description of fault

"Sensing" circuit of motor TRIAC faulty
(input signal to microprocessor always 0V or
5V)

Relays contacts sticking
(voltage on "sensing" circuit when the relays
should be open)

Motor circuit open

Problems with motor tachimetric generator

Insufficient heating during washing
(maximum heating time exceeded)

Overheating during washing
(temperature >88°C for more than 5 minutes)

Power relay to heating element faulty
(incongruency between closure of anti-boiling
pressure switch 2 and status of relay K3)

NTC wash sensor faulty
(voltage not within limits = short-circuit or open)

User

code

---

---

---

---

---

---

---

---

Effect Possible causes

Cycle blocked

with door closed

Cycle blocked

with door closed

(after 5 attempts)

Cycle blocked

with door closed

(after 5 attempts)

Cycle blocked

with door closed

(after 5 attempts,

last after 20')

Heating phase

skipped

Drain, cycle

blocked

Drain, cycle

blocked

Heating phase

skipped

Main PCB

Loss of insulation on motor windings/wiring; main
PCB

Motor; wiring; main PCB

Motor (tachimetric generator);
wiring; main PCB

NTC sensor incorrectly calibrated; heating element;
wiring; main PCB

Heating element (earthed); NTC sensor faulty;
wiring; main PCB

Anti-boiling pressure switch 2; wiring; main PCB

Wash NTC sensor; wiring; main PCB

SOI/DT 2002-03 eb 42 599 35 27-35

Alarm

code

EF1

EF2

EF3

E84

E85

E91

E92

E93

E94

LED

L26 -29

1
0
0
0
1
0
0
0
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
1
1
1
1
1
1
1

1
1
1
1

LED

L30 - 33

0
1
0
0
0
1
0
1
0
0
0
1
0
0
1
0
0
0
1
1
0
1
0
0
0
0
0
1
0
0
1
0

0
0
1
1

Description of fault

"Sensing" circuit on circulation pump triac faulty
(input signal to microprocessor always 0V or
5V)

Circulation pump faulty
(incongruency between status of "sensing"
circuit on circulation pump and status of TRIAC)

Communications error between main PCB and
display board

Communications incongruency between main
PCB and display board
(versions not compatible)

Configuration error
(incongruency of configuration values when
appliance is switched on)

Incorrect configuration of washing cycle

Drain filter blocked
(drain phase too long)

Excessive detergent
(too much foam during drains)

Water leakage:
intervention of Aqua Control system

User

code

---

---

E90

E90

E90

E90

Specific

LED

(EF0)

Specific

LED

(EF0)

---

Effect Possible causes

Drain, cycle

Main PCB

blocked (door

open)

Drain, cycle

Circulation pump; wiring; main PCB

blocked (door

open)

--- Wiring; main PCB; display board

--- Main PCB; display board

Cycle blocked Configuration error; main PCB

Cycle blocked Cycle software error; main PCB

---

---

Water drain to

Drain hose obstructed/kinked; drain filter
dirty/blocked

Excessive detergent introduced; drain hose
obstructed/kinked; drain filter dirty

Leaks from base; drain pump; wiring; main PCB

120mm, cycle

blocked

SOI/DT 2002-03 eb 43 599 35 27-35

6.8 Canceling the last alarm condition

To cancel the last memorised alarm condition press button no. 2 (TEMPERATURES) and no. 4 at the same
time during one of the 8 phases of the diagnostics cycle and not in the alarm or configuration reading
positions.

To check for correct operation, go back to the alarm reading position (the L10 LED is on); the display should
show E00.

The alarm is cancelled also when a new configuration is given to the main PCB.

SOI/DT 2002-06 eb 44 599 35 27-35

6.9 Configuration of the main PCB

A standard main PCB is available as a spare part. This PCB contains only data relative to the wash cycle.

After replacing the main PCB, it is necessary to perform the configuration procedure in order to
operate the washing machine.

Configuration of the board consists of entering a 16-digit code which contains information which varies from
model to model (type of washing system, type of tub, spin speed, etc.).

To access the machine configuration procedure, first enter the diagnostics system, and then:

Ö press the FABRICS (1) or

TEMPERATURE (2) buttons until LED
L10 lights; the code relative to the first of
the 16 digits of the configuration code
(position 0) is displayed)

Ö when the SKIP/RESET button (8) is

pressed, all the digits which make up the
configuration code are displayed in
sequence

Ö press the START/PAUSE button (7) to

modify the configuration code (digit by
digit

Ö when all 16 digits have been entered,

check that the code is correct, then
memorize the code by pressing the
START/PAUSE (7) and SKIP/RESET (8)
buttons at the same time; these buttons
should be held down for at least 4
seconds (i.e. until the buzzer sounds).

When configuration has been completed, perform the diagnostics routine in order to check that the
appliance functions correctly. In case of an error, the display window will show error code E93 and the
machine stops.

SOI/DT 2002-06 eb 45 599 35 27-35

6.9.1 Configuration code

The configuration code (16 alphanumeric digits) is
shown on a label affixed to the casing of the main PCB
and in the Spare Parts Lists describing the various
models. It is advisable to note the configuration code on
the casing of the new PCB fitted to the washing
machine

READING THE CONFIGURATION CODE

The configuration code is shown, one character at a time, on the display (if featured) or on the washing
phase display LEDs.

A = The first digit shown on the display (if featured) indicates the position of the value to be entered. On

models not fitted with a display window, the same information is displayed in binary format on the first
four washing phase LEDs. To read the various positions, press the SKIP/RESET button (8) repeatedly
(the first position displayed is "0").

B = The last digit on the display (if featured) indicates the value of the configuration character to be entered

in a given position. On models not fitted with a display window, the same information is displayed in
binary format on the second set of four washing phase LEDs. To modify the value of the character
displayed, press the START/PAUSE button (7) repeatedly as necessary.

BINARY CODES

The table below can be used to convert the binary code shown by the LEDs into the corresponding letter or
decimal number.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

0

b C d E F

A

❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ● ● ● ● ● ● ● ●
❍ ❍ ❍ ❍ ● ● ● ● ❍ ❍ ❍ ❍ ● ● ● ●
❍ ❍ ● ● ❍ ❍ ● ● ❍ ❍ ● ● ❍ ❍ ● ●
❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ●

❍ LED off

● LED on

SOI/DT 2002-06 eb 46 599 35 27-35

6.9.2 Example of configuration

Configuration code:

POSITION:

VALUE: A 2 A 7 8 0 8 0 8 0 E 6 9 1 F 2

Table of cycle phases Leds

On models not featuring the display window, it is advisable, before beginning the configuration procedure, to
convert the digits of the configuration code into binary format (the positions, indicated by the second group
of 4 LEDs, are not modified).

0

A2A7808080E691F2

0 1 2 3 4 5 6 7 8 9 10

(A)

↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓

11

(B)

12

(C)

13

(D)

14

(E)

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

A b C d E F

15

(F)

❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ● ● ● ● ● ● ● ●
❍ ❍ ❍ ❍ ● ● ● ● ❍ ❍ ❍ ❍ ● ● ● ●
❍ ❍ ● ● ❍ ❍ ● ● ❍ ❍ ● ● ❍ ❍ ● ●

POSITION

❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ●

● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍ ● ❍
❍ ❍ ❍ ● ❍ ❍ ❍ ❍ ❍ ❍ ● ● ❍ ❍ ● ❍

● ● ● ● ❍ ❍ ❍ ❍ ❍ ❍ ● ● ❍ ❍ ● ●
❍ ❍ ❍ ● ❍ ❍ ❍ ❍ ❍ ❍ ❍ ❍ ● ● ● ❍

VALUE

A 2 A 7 8 0 8 0 8 0 E 6 9 1 F 2

CONFIGURATION

1. Access the diagnostics system.

2. Press the FABRICS (1) or TEMPERATURE (2) buttons until LED L10 lights. The code relative to the first
of the 16 characters of the configuration code is displayed (position zero).

3. Press the START/PAUSE button (7) sequentially to enter the letter A in position 0. If the appliance
features a display window, this will show 0-A; if not, the wash cycle LEDs should light as shown in column
0 of the table (i.e. the fifth and seventh LEDs).

4. Press the SKIP/RESET button (8) to pass to the second position, and enter 2 by pressing START/PAUSE
(7) as necessary. The display should now show 1-2, and the LEDs should light as shown in column 1 of
the table (fourth and seventh).

5. Repeat this procedure to enter the remaining configuration digits. When all the digits have been entered,
press the SKIP/RESET button (8) to check that the configuration code is correct.

6. Memorize the configuration code by pressing the START/PAUSE (7) and SKIP/RESET (8) buttons at the
same time for at least 4 seconds, so that the configuration code is memorized by the main PCB.

7. Perform the diagnostics cycle to check that the appliance operates correctly. In case of a configuration
error, error E93 is displayed and the operation of the appliance is interrupted).

SOI/DT 2002-06 eb 47 599 35 27-35

6.10 Exiting the diagnostics cycle

To exit the diagnostics cycle, switch the appliance off, then on,
then off again.

6.11 Operating time counter

A specific procedure can be used to display the total number of hours of operation of the appliance, which
are counted as from the first time it is operated. This option is available on models with display only
maximum value that can be stored in memory is 6,550 hours of operation.

Ö only the time of the normal programmes is counted (cycle diagnostics are not included).
Ö the effective time of the cycles is counted (i.e. not including pauses, delayed start times, rinse hold

periods and the soak phases).

Ö the accuracy of the counter is to within 30 seconds for each programme.
 only whole hours of operation are displayed (1 hr 59 minutes is displayed as 1 hour)

6.11.1 Reading the operating time

Ö reset the running programme and switch the

appliance off

Ö press buttons FABRICS (1) and button

TEMPERATURE (2) simultaneously and then,
holding then down, switch the appliance on with
button ON/OFF

Ö hold down buttons for at least 4 seconds

Displaying the operating time

The operating time is displayed two digits at a time. The first pair of digits shows the thousands and
hundreds; the second pair shows tens and units.

For example, a total operating time of 6,550 hours will be displayed as follows:

1 → 2 → 3 →

The second pair of two digits is
displayed for two seconds:

- tens (5)

- units (0)

Blank display for two seconds

The first pair of digits is
displayed for two seconds

- thousands (6)

- hundreds (5)

:

. The

SOI/DT 2002-06 eb 48 599 35 27-35

7 DEMO Mode

A special cycle has been created for demonstration of the operation of these appliances in retail outlets
without connecting the appliance to the water supply. In this way, the salesman can select any programme;
after starting the cycle by pressing START, the appliance will perform certain phases only, and will skip
those which cannot be performed (water fill, drain, heating).

The cycle takes place as follows:

 the door locking device is actioned in the normal way (i.e. the door remains locked while the appliance is

in operation, and can be opened at the end of the cycle or in pause mode)

 motor: all low-speed movements are enabled, while the pulse signals and the spin cycle are excluded
 the water fill solenoids and the drain pump are disabled
 circulation pump (certain models only): this pump is normally disabled, but functions if water is

introduced manually until the anti-boiling safety level has been reached

 display: since the phases of the cycle take place in rapid succession (1 second of the demo cycle is

equivalent to 1 minute of the actual cycle), the time-to-elapse decreases by 1 unit per second.
Remember that the time-to-elapse does not always correspond to the actual cycle time

 alarms: for reasons of safety, the following groups of alarms remain enabled: E40 (door closed), E50

and E90 (communication between the boards/configuration).

7.1 Setting demo mode

Ö Reset the running programme and switch the appliance off
Ö Press button FABRICS (1) and button SPIN (3) simultaneously and then, holding them down, switch the

appliance on with button ON/OFF

Ö Press and hold down the buttons for at least 4 seconds

7.2 Exiting demo mode

Switch the appliance off to exit the demo mode.

SOI/DT 2002-06 eb 49 599 35 27-35

8 Accessibility to electronic control

8.1 Cover

a. Unscrew the two rear screws (1), push backwards and release it

from the cabinet

8.1.1 Main PCB

a. Remove the cover
b. Unscrew the support fixing screw – board housing (2)
c. Release the wiring from the supports
d. Extract the electronic board housing
e. Disconnect the connectors

8.2 Control panel

a. Remove the cover (1)
b. Extract the detergent drawer (3)
c. Unscrew the control panel screws to control support (4)
d. Unscrew the support crossbar screws to control panel and release

the fixing wings (5-6)

e. Disconnect the wiring connector from the display board and remove

the control panel

8.2.1 Control/Display board

a. Remove the control panel
b. Disconnect the wiring from the board
c. Unscrew the fixing screws to electronic board housing-control

panel (7)

d. Extract the board-housing assembly releasing it from the

control panel

3

4

2

5

6

7

SOI/DT 2002-06 eb 50 599 35 27-35

9 Basic circuit diagrams

9.1 Version with AC motor

SOI/DT 2002-06 eb 51 599 35 27- 35

9.2 Version with DC motor

SOI/DT 2002-06 eb 52 599 35 27- 35

9.3 Key to circuit diagram

1. Main PCB

2. Control/display board

5. Anti-interference filter

6. ON/OFF button

6a.Pilot lamp

7. Door interlock

8. Analog pressure switch (electronic)

9. NTC temperature sensor (washing)

10. Anti-boiling pressure switch 1

11. Heating element (washing)

13. Motor

12. Anti-boiling pressure switch 2

14. Recirculation pump

15. Drain pump

16. Pre-wash solenoid

17. Wash solenoid

18. Bleach solenoid or hot water solenoid (certain models only)

19. AC/DC converter (certain models only)

20. Door lamp

SOI/DT 2002-06 eb 53 599 35 27- 35