Electrolux Diva EDW 2000 Service Manual

SOI/TD - PR 1 599 35 94-03

SERVICE MANUAL

DISHWASHERS

 ELECTROLUX HOME PRODUCTS

ITALY S.p.A. Spares Operations Italy Corso Lino Zanussi, 30

Publication no.

I - 33080 PORCIA /PN (ITALY)

599 35 94-03

Fax +39 0434 394096

Edition: 2003-12

DIVA EDW 2000 - 60 cm

Dishwasher with

electronic control

(Functionality)

free- standing 911 917

…

built-in 911 927

…

Produced by:

ZM - Solaro (IT)

SOI/TD - PR 2 599 35 94-03

TABLE OF CONTENTS

Purpose of this manual ........................................................................................................................... 4

2 GENERAL CHARACTERISTICS............................................................................................................ 4

3 CONTROL PANEL AND PROGRAMMES ............................................................................................. 5

3.1 Control panel....................................................................................................................................... 5

3.1.1 ON / OFF button (S0)..................................................................................................................................5

3.1.2 Programme buttons and options (S1-S9)....................................................................................................6

3.1.3 LEDs for phases, options and warnings (LD7-LD20) ..................................................................................6

3.1.4 Display ........................................................................................................................................................6

3.2 Wash programmes ............................................................................................................................. 7

3.3 Options................................................................................................................................................ 7

3.3.1 “3 in 1”.........................................................................................................................................................7

3.3.2 Extra rinse...................................................................................................................................................7

3.3.3 “1/2 load”.....................................................................................................................................................7

3.3.4 Sanitising ....................................................................................................................................................8

3.3.5 Eco-drying...................................................................................................................................................8

3.3.6 Delayed start...............................................................................................................................................8

3.4 Buzzer (installed on certain models, only)........................................................................................ 10

3.5 Selecting a programme..................................................................................................................... 11

3.6 Programme execution....................................................................................................................... 11

3.6.1 Cycle start.................................................................................................................................................11

3.6.2 Cycle execution.........................................................................................................................................12

3.6.3 End of cycle ..............................................................................................................................................12

3.7 Modifying a programme .................................................................................................................... 12

3.7.1 Cancelling a programme (reset)................................................................................................................12

3.7.2 Changing a programme ............................................................................................................................13

3.7.3 Interrupting a programme .........................................................................................................................14

3.8 Sequence of operations.................................................................................................................... 16

4 BUILD CHARACTERISTICS ................................................................................................................17

4.1 Structure ...........................................................................................................................................17

4.2 Hydraulic and functional characteristics ........................................................................................... 17

4.3 Water circuit ...................................................................................................................................... 18

5 ELECTRICAL COMPONENTS AND FUNCTIONS .............................................................................. 19

5.1 EDW2000 electronic control system................................................................................................. 19

5.1.1 Functions provided by the mother board...................................................................................................19

5.1.2 Memories contained in the electronic control system................................................................................19

5.2 Specifications of actuators and sensors ........................................................................................... 20

5.2.1 Components..............................................................................................................................................20

5.2.2 Sensors.....................................................................................................................................................20

5.3 Power feed and selection of programmes........................................................................................ 21

5.4 Fill circuit ........................................................................................................................................... 21

5.4.1 Pressure switches on fill level and anti-overflow system...........................................................................21

5.4.2 Filling system ............................................................................................................................................21

5.4.3 Anti-flooding device...................................................................................................................................21

5.4.4 Operation of the anti-overflow device........................................................................................................22

5.5 Control of water filling ....................................................................................................................... 22

5.5.1 Static filling................................................................................................................................................22

5.5.2 Dynamic filling...........................................................................................................................................22

5.5.3 Level control..............................................................................................................................................22

5.6 Water filling time ............................................................................................................................... 23

5.6.1 Static filling time ........................................................................................................................................23

5.6.2 Dynamic filling time ...................................................................................................................................23

5.6.3 Interruptions in water filling .......................................................................................................................23

5.7 Level control during washing ............................................................................................................ 23

5.8 Washing system ............................................................................................................................... 23

5.8.1 Control of wash pump ...............................................................................................................................24

5.9 Heating.............................................................................................................................................. 25

5.9.1 Built-in detergent dispenser ......................................................................................................................25

5.10 Draining ......................................................................................................................................... 26

5.10.1 “Siphon” effect...........................................................................................................................................26

5.11 Regeneration system ....................................................................................................................27

5.12 Resin washing ............................................................................................................................... 27

5.12.1 “Blending” function ....................................................................................................................................28

5.12.2 Table of regeneration values.....................................................................................................................28

5.13 Drying ............................................................................................................................................ 28

5.13.1 ”Turbo-dry” drying .....................................................................................................................................29

SOI/TD - PR 3 599 35 94-03

5.14

Automatic cycle ............................................................................................................................. 30

5.15 Turbidity sensor........................................................................................................................... 30

5.15.1 Detection of dirtiness ................................................................................................................................30

5.15.2 Detection of load .......................................................................................................................................30

5.16 Automatic Programme .................................................................................................................. 30

6 A GUIDE TO THE DIAGNOSTIC SYSTEM.......................................................................................... 31

6.1 Displaying alarms and enabling mechanical systems ...................................................................... 31

6.2 Table of alarm codes ........................................................................................................................ 32

6.3 Cancelling alarms from memory / testing the LEDs .........................................................................34

7 Options that can be selected by the user ............................................................................................. 34

7.1 Buzzer............................................................................................................................................... 34

7.2 Setting the regeneration level........................................................................................................... 35

7.3 Rinse-aid dispensing ........................................................................................................................36

8 Options that can be selected by service personnel ..............................................................................37

8.1 Extra rinse cycle................................................................................................................................ 37

8.2 Functional test cycle .........................................................................................................................38

8.2.1 Executing the test cycle ............................................................................................................................38

8.2.2 Phases in the test cycle ............................................................................................................................38

8.3 Pulse washing................................................................................................................................... 39

8.4 Exiting the diagnostic mode.............................................................................................................. 39

9 ELECTRICAL FUNCTIONS.................................................................................................................. 40

9.1 Circuit diagram.................................................................................................................................. 40

9.2 Basic circuit diagram......................................................................................................................... 41

9.2.1 Button to electrical diagrams.....................................................................................................................41

9.3 Table of programmes........................................................................................................................ 42

9.4 Checking components for proper operation .....................................................................................43

10 A QUICK GUIDE TO SPECIAL FUNCTIONS ...................................................................................... 45

SOI/TD - PR 4 599 35 94-03

1 Purpose of this manual

The purpose of this manual is to provide service personnel (who already have the basic knowledge necessary for repairing dishwashers) with information on dishwashers equipped with the EDW2000 electronic control system, which are produced in the Solaro (MI - Italy) factory.

The EDW2000 control system is composed of a main (input) board, a display (output/interface) board housed in the control panel, and a mother board housed in the lower part of the appliance.

The subjects covered in this manual are:

• General characteristics

• Control panel and programming

• Build features

• Electrical components and their operation

• Guide to the diagnostic system

• Operation of electrical systems

For detailed information on the water circuits and build characteristics of the appliance, refer to the Service Manual for the “DIVA 60cm” (publication no. 599 35 55-25).

 Work on electrical equipment must be performed by qualified personnel, only.  Pull out the power plug before working on internal components.

GENERAL CHARACTERISTICS

Important

When the appliance is plugged in, mains voltage is present on all circuit boards even if the

ON/OFF button is OFF.

Power supply ⇒ 230 - 240 V / 50 Hz (limits 187-254 V) Total power drawn ⇒ 2300 W Water supply ⇒ Min. / Max. Pressure: 5 - 80 N/cm

Load capacity ⇒ 12 Place settings Dimensions:

- width ⇒ 59.6 cm

- height ⇒ 81.8 -87.8 cm

- depth ⇒ 55.5 cm

Controls ⇒ Horizontally arranged

- Power up / Power down ⇒ ON/OFF button

- Selection of programmes/options ⇒ By button (min. 3, max. 9)

- Display ⇒ 2.5 digit display, backlit characters and/or LEDs

Washing systems ⇒ Combined / Pulse Water fill level control ⇒ Pressure switch + Software Water heating ⇒ Heating element enclosed in tube (2100 W) Temperature control ⇒ NTC temp. sensor Drying systems ⇒ Activ / Turbo Safety systems / Alarms ⇒ Full protection of water/electrical systems and Software

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3 CONTROL PANEL AND PROGRAMMES

3.1 Control panel

The configuration of the control panel may vary with:

 Type of circuit boards used  Number of pushbuttons for selecting programmes/options  Number of LEDs or backlit characters

3.1.1 ON / OFF button (S0)

This button is installed on all EDW2000 units and is used to turn the appliance on and off.

NB: Turning the appliance off does not cancel the programme in progress.

Important: Voltage is present on the circuit boards even when the corresponding indicator [LD0] is off!

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3.1.2 Programme buttons and options (S1-S9)

The functions and number of buttons depends exclusively on the software in the appliance, which can be equipped with a minimum of 3 and a maximum of 9 buttons. The system used for selecting the wash programmes also depends on the configuration of the model in question.. Buttons S1, S2, S3 are always present because they control special functions

. Each button is

associated with a specific programme.

3.1.3 LEDs for phases, options and warnings (LD7-LD20)

OPTIONS:

• 3 in 1

• Extra rinse cycle

• 1/2 load

• Sanitize

• Eco-drying

• Delayed start

CYCLE PHASES:

• Prewash

• Wash

• Rinse

• Dry

• End of cycle

INDICATORS & ALARMS:

• Time to end of cycle: lights up when display shows the time remaining until the end of the cycle

• No salt: lights up when regeneration salt requires replenishment. If the “regeneration level” is set to

1 (no regeneration) this LED does not light up

• No rinse aid: lights up when rinse aid must be added

• Water off: lights up when the water feed to the appliance is shut off

• Filter: lights up regularly. Reminds user to clean the filters.

• Door: lights up when door is open

• Spray arm: lights up when the spray arm(s) is(are) clogged

NB: The operation and presence of the LEDs depends on the software in the appliance. All the LEDs are located near a “programme” or “option” button and indicate that it has been selected. The LEDs stay lit during the entire cycle.

3.1.4 Display

The display, which is composed of 2.5 digits, may indicate:

 The time in minutes remaining until the end of the programme:

 The value is counted down from minute to minute and is updated at the end of every phase in

the programme (when this occurs, the countdown may decrease by more than one minute at a time or stop for a longer time than previously).

 The end of the cycle[0]  The delayed start time in hours, if set (from 1 hr to 19 hrs)

 The time decreases one hour at a time; during the final hour, it decreases one minute at a time

 The regeneration level selected  The alarm code, if a malfunction has occurred  The status of special functions (disabling of rinse-aid and buzzer)  The status of functions that can be selected by the service technician

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3.2 Wash programmes

The number and types of wash programmes and options vary with the configuration of the model.

Possible options

Type

Programme

Prewash (ºC)

Wash (ºC)

No. of rinses

Half load

Sanitize

3 in 1

Extra rinse

Bio detergent

“Tablet”

Eco drying



Min. ~

Intensive (maximum speed)

55 68 2 ☺ ☺ ☺ ☺

♦

☺

120’

Short intensive

50 68 2 ☺ ☺ ☺ ☺ ☺

♦

88‘

Normal (maximum speed)

68 1 ☺ ☺ ☺ ☺

♦

☺

100‘

Delicate

55 1 ☺ ☺ ☺ ☺ ☺

♦

☺

98‘

Delicate without prewash

55 1 ☺ ☺ ☺ ☺ ☺

♦

☺

89‘

Normal 3 rinses

68 2 ☺ ☺ ☺ ☺ ☺

♦

☺

102‘

Normal 3 rinses

without prewash

-68 2 ☺ ☺ ☺ ☺ ☺

♦

☺

93‘

Axx Energy label

-- 60 max 1 ☺ ☺ ☺ ☺ ☺ ☺ ☺

162‘

Fast Energy label

55 max 1 ☺ ☺ ☺ ☺ ☺

♦

☺

134‘

Auto performance

Energy label

65 max 1 ☺ ☺ ☺ ☺ ☺ ☺ ☺

141‘

Auto

Auto 50-65°C

50-68 1 ☺ ☺ ☺ ☺

♦

☺

92‘-115’

Short

-- 50 1 ☺ ☺ ☺ ☺ ☺

52‘

Soak

-- --

♦

♦ ♦

12‘

Short 30 min

-- 65 max -- ☺ ☺ ☺ ☺ ☺

31‘

Dish heating

-- --

♦

♦ ♦

30‘

Crystal ware and glasses

45 1 ☺ ☺ ☺

♦

☺

71‘

3.3 Options

3.3.1 “3 in 1”

This option is selected by pressing the relative button and remains selected

until the button is pushed again.. The option modifies the phases in the programme to optimise operation when “3 in 1” detergent tablets are used and is not available in the “Soak” and “Dish heating” cycles:

 The length of the programmes and the temperatures are varied to dissolve the detergent tablets  Water exchange (dilution drainage) is diminished  Rinse-aid is not dispensed  Regeneration (washing of resins) is disabled

3.3.2 Extra rinse

This option can be temporarily selected by pressing the relative button, if present, or by using the “Service” mode (see 10.5.1). It is not available in the “Soak” and “Dish heating” cycles:

 A rinse with pulse washing is added that lasts around 9 minutes.

3.3.3 “1/2 load”

• using the 1/2 load button When this button on the control panel is pressed, certain parameters in the selected wash cycle are modified with respect to the standard cycle. The wash cycle is optimised to handle the reduced amount of dishes loaded into the machine. This option is not available in the “Automatic”, “Short”, “Short 30 min”, “Soak”, “Crystal ware” and “Dish heating” cycles:

 Prewash is skipped (if included in cycle)  Wash temperature is lowered  Programme is shortened (down to a minimum of 36 minutes)

• using automatic 1/2 load detection When the 1/2 load button is not installed, certain programmes can be set to automatically detect a 1/2 load by measuring variations in temperature during the first heating phase

 The temperature and length of washing are reduced

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This option is not available in the “Short Intensive”, “Intensive Maximum Speed”, “Short”, “Short 30 min.”,

“Soak”, “Dish Heating” and “Crystal Ware” cycles.

3.3.4 Sanitising

This special option sanitises the dishes and is not compatible with the “Crystal Ware” cycle.

 During the final hot rinse, a temperature of 68ºC is maintained for 10 minutes  If selected during the Soak

cycle, a special “sanitising” programme lasting 46 minutes is performed

(involving a hot rinse at 68 ºC; this temperature is then maintained for 10 minutes)

3.3.5 Eco-drying

This option is temporarily selected by pressing the relative button. It is available in all programmes with at least 15 minutes of drying time (excluding “Short Intensive”, “Short”, “Short 30 min”, “Soak” and “Dish Heating”):

 Drying time is reduced to only 15 minutes  “Energy Label” programmes are shorted by 39 minutes; all other programmes are shortened by 9

minutes

3.3.6 Delayed start

This option enables the user to delay the start of the washing cycle for a minimum time of 1 hour to a maximum time of 19 hours from the moment the option is set. The appliance must not be turned off during the countdown.

 Selecting delayed start after the programme has been selected:

1. Turn the appliance on by pressing button S0

 LED LD0 lights up

 The appliance is set to the selection mode

 All the programme buttons and options are now available

 After the desired programme is selected, options can still be chosen as long as they are

compatible with the selected programme

2. Press the button for the desired programme:

 LED LD0 is lit

 The LED for the selected programme lights up to show that the selection has been made

 The display lights up and the time remaining (from beginning to end of cycle) flashes

 LED LD10 lights up

 LEDs LD11, LD12, LD13, LD14 light up to indicate the phases that make up the programme

3. Press delayed start button S7 within 3 seconds from the moment the programme is selected:

 LED LD0 is lit

 The LED for the selected programme is lit

 LED LD7 indicating delayed start is lit

 The display flashes the delayed start time

 LEDs LD11, LD12, LD13, LD14 light up to indicate the phases that make up the programme

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Every time button S7 is pressed, the delayed start time increases by 1 hour up to a maximum of 19 hours:

 When the selection exceeds 19, the system begins the count again starting from 0

4. 3 seconds after the last press of button S7, the time set on the display is stored and the countdown to start begins

 LED LD0 is lit  The LED for the selected programme is lit  LED LD7 indicating delayed start is lit  The display shows the delayed start time

NB: the countdown of the delayed start time can begin only when the door is closed

 Selecting delayed start before the programme is selected:

1. Turn the appliance on by pressing button S0

 LED LD0 lights up  The appliance starts up in the selection mode  All the programme buttons and options are now available

 After the desired programme is selected, options can still be chosen as long as they are

compatible with the selected programme

2. Press delayed start button S7:

 LED LD0 is lit  LED LD7 is lit  The display flashes the delayed start time

NB: Every time button S7 is pressed, the delayed start time increases by 1 hour up to a maximum of 19 hours:

 When the selection exceeds 19, the system begins the count again starting from 0

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3. Press the button for the desired programme:

 LED LD0 is lit  The LED for the selected programme lights up to show that the selection has been made  The display lights up and the time remaining (from beginning to end of cycle) flashes  LED LD7 is lit  LED LD10 lights up  LEDs LD11, LD12, LD13, LD14 light up to indicate the phases that make up the programme

4. 3 seconds after the last press of button S7, the time set on the display is stored and the countdown to start begins

 LED LD0 is lit  The LED for the selected programme is lit  LED LD7 indicating delayed start is lit  The display shows the delayed start time

NB: the countdown of the delayed start time can begin only when the door is closed

3.4 Buzzer (installed on certain models, only)

This series of dishwashers is not normally equipped with a buzzer, but some models may have one.

The buzzer is a device that signals the End of cycle and an Alarm should one occur. The buzzer goes off three times at the end of the cycle and is immediately silenced when the door is opened.

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3.5 Selecting a programme

With the dishwasher OFF:

1. Turn the appliance on by pressing button S0

 LED LD0 lights up  The appliance is set to the selection mode  All the programme buttons and options are now available

 After the desired programme is selected, options can still be chosen as long as they are

compatible with the selected programme

 Delayed start can be selected; see 3.3.6

2. Press the button for the desired programme:

 LED LD0 is lit  The LED for the selected programme lights up to show that the selection has been made  The display lights up and the time remaining (from beginning to end of cycle) flashes  LED LD10 lights up  LEDs LD11, LD12, LD13, LD14 light up to indicate the phases that make up the programme

With the door open:

 Other options or modifications can be added before the door is closed

 Delayed start can be selected; see 3.3.6

 The programme can begin only when the door is closed

With the door closed:

 Other options or modifications can be added within 3 seconds from the moment the programme is

selected

 Otherwise, the programme will automatically start 3 seconds after the last button is pressed

 Delayed start can be selected during this 3 second period, see 3.3.6

3. The programme starts

 LED LD0 is lit  The LED for the selected programme is lit  The display shows the time remaining  LED LD10 is lit  The LED for the current phase in the programme is lit

3.6 Programme execution

3.6.1 Cycle start

 The selected programme automatically starts 3 seconds after the final button press (with the door

closed) and after the countdown has elapsed

 At this point, the delayed start time cannot be changed and no other options can be selected

 The programme in progress can be cancelled, see 3.7.1  The programme can be modified, see 3.7.2

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3.6.2 Cycle execution

 LED LD0 is lit  The LED for the selected programme is lit  LED LD10 stays lit for the duration of the cycle  The display shows the minutes of wash time remaining

 The time until the end of the cycle is updated at every new phase in the programme  When the system moves from one phase to another, the time remaining until the end of the cycle

may be lowered more than the actual time elapsed

 When the system moves from one phase to another, the time remaining until the end of the cycle

may stop until the system synchronises

 The LEDs for the phases in the wash cycle light sequentially to indicate the current phase in progress

3.6.3 End of cycle

 LED LD0 is lit  The LED for the selected programme is lit  The display shows “0”  LED LD10 is lit  The LED showing the end of the cycle is lit  If it is installed and enabled, the buzzer will emit a sequence of sounds at the following intervals:

 15 seconds on - 3 minutes off - 15 seconds on – 3 minutes off - 15 seconds on – buzzer

remains off

 The buzzer is disabled as soon as the door is opened

 At the end of the cycle, the “0” on the display can be eliminated by opening and closing the door

 After the door has been closed, the appliance will automatically be set to the selection mode  Press the S0 button to turn the appliance off completely.

3.7 Modifying a programme

3.7.1 Cancelling a programme (reset)

A cycle that is in progress or is programmed to start at the end of the delayed start countdown can be cancelled at any time:

1. The cycle is proceeding normally with no alarms

 LED LD0 is lit  The LED for the cycle in progress is lit  LED LD10 for time remaining until end of cycle is lit  The display shows the time remaining until the end of the cycle  The LED for the current phase in the cycle is lit

2. Press the S1 and S2 buttons at the same time for around 2 seconds

 the LED for the cycle in progress flashes

3. After around 2 seconds

all the indicators except for LED LD0, will turn off

 the cycle has been cancelled

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3.7.2 Changing a programme

1. If the programme has been selected but has not yet started:

 LED LD0 is lit  The LED for the cycle in progress is lit  LED LD10 for the time remaining until end of cycle is lit  The display shows time remaining until the end of the cycle  All the LEDs that indicate the phases in the programme are lit

2. Press the button for the new programme

 LED LD0 is lit  The LED for the new cycle is lit  LED LD10 for the time until the end of the cycle is lit  The display flashes the duration of the new cycle in minutes  All the LEDs that indicate the phases in the new programme are lit

NB: all the options selected previously are cancelled and must be selected again

3. The programme can still be changed within 3 seconds after the last button press

 If no button is pressed within the 3 second period,

the cycle will begin

NB: The cycle will begin only if the door is closed

If a delayed start has also been selected:

The programme has been selected but has not yet started

 LED LD0 is lit  The LED for the selected cycle is lit  LED LD7 for delayed start time is lit  The display flashes the time set for delayed start  All the LEDs that indicate the phases in the programme are lit

Press the button for the new programme

 The delayed start time that was previously programmed remains in memory  The options selected previously are cancelled and must be selected again  LED LD0 is lit  The LED for the new cycle is lit  LED LD7 for delayed start time is lit  The display flashes the time until the end of the cycle for around 2 seconds  The display then flashes the time set for delayed start

NB: if the countdown for delayed start has already begun (and the display is not flashing), follow these instructions to change the selected programme:

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1. If the cycle is running without alarms:

 LED LD0 is lit  The LED for the selected cycle is lit  The LED that indicates the phase in progress is lit  LED LD10 for the time until the end of the cycle is lit  The display shows (but does not flash) the time until the end of the cycle

2. Press the button for the new programme for at least 6 seconds

 LED LD0 is lit  The LED for the previously selected cycle flashes  LED LD10 for the time until the end of the cycle is lit  The display shows (but does not flash) the time until the end of the cycle  The LED that indicates the phase in progress is lit

3. After around 6 seconds:

 The LED for the previously selected cycle turns off  The LED for the new programme lights up  The LED LD0 is lit  LED LD10 for the time until the end of the cycle is lit  The display shows (but does not flash) the time until the end of the cycle  The LED that indicates the phase in progress is lit

NB: When a selected programme is modified, the new cycle will generally start from the beginning. The options selected previously are cancelled and must be selected again.

3.7.3 Interrupting a programme

 Shutting off the appliance

1. Shut off the machine by pressing the S0 button (there are no limits on time)

 No previously selected option is cancelled  All indicators on the control panel turn off.

2. To restart the cycle, press button S0 once again

 The cycle resumes from the point at which it was interrupted, but with a slight delay  No other button needs to be pressed  All the indicators on the control panel appear exactly the way they were before the interruption

Important: If the appliance is turned off or the door is opened for more than 30 seconds during the drying cycle, the cycle will end after the regeneration phase and the appliance will be set to the selection mode when it is turned back on.

+ 31 hidden pages

Electrolux Diva EDW 2000 Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual