AEG EDW750 User manual

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SERVICE MANUAL
DISHWASHERS
Dishwashers with electronic
control system
ProClean
RealLife
ELECTROLUX ITALIA S.p.A.
Spares Operations Europe
Corso Lino Zanussi, 30 Publication
number
I - 33080 PORCIA/PN (ITALY) 599 72 48-93
Fax [phone]
EN
Edition: 2016/09

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CONTENTS
1 Purpose of this manual.............................................................................................................................4
2 Precautions...............................................................................................................................................4
3 Styling overview........................................................................................................................................5
3.1 Free Standing ....................................................................................................................................... 5
3.2 Fully Integrated ..................................................................................................................................... 6
3.3 Built In ................................................................................................................................................... 7
4 Location of LEDs and Push Buttons .......................................................................................................10
4.1 EDW1xxx-2G display boards .............................................................................................................. 10
4.2 EDW3000 display boards ................................................................................................................... 10
4.3 “New Collection” display boards ......................................................................................................... 10
5 Reset ......................................................................................................................................................11
6 User Mode Settings ................................................................................................................................12
6.1 Entering the User Mode...................................................................................................................... 12
6.2 Water hardness .................................................................................................................................. 13
6.2.1 EDW500.................................................................................................................................................... 13
6.2.2 EDW503.................................................................................................................................................... 13
6.2.3 EDW750.................................................................................................................................................... 14
6.2.4 EDW1850/1950 ......................................................................................................................................... 14
6.2.5 EDW1953 TOUCH .................................................................................................................................... 14
6.3 Disable/Enable Rinse Aid ................................................................................................................... 15
6.4 Disable/Enable Buzzer........................................................................................................................ 15
6.4.1 EDW503.................................................................................................................................................... 15
7 Service Mode Settings............................................................................................................................16
7.1 EDW500.............................................................................................................................................. 16
7.1.1 Diagnostics mode, alarm reading and testing. ........................................................................................... 16
7.1.2 Deleting alarm memory/LED test............................................................................................................... 17
7.1.3 Functional test cycle.................................................................................................................................. 17
7.1.4 Quitting diagnostics mode ......................................................................................................................... 17
7.2 EDW503.............................................................................................................................................. 18
7.2.1 Diagnostics mode, alarm reading and testing. ........................................................................................... 18
7.2.2 Deleting alarm memory/LED test............................................................................................................... 18
7.2.3 Functional test cycle.................................................................................................................................. 19
7.2.4 Reading alarms and activating components .............................................................................................. 19
7.3 EDW750.............................................................................................................................................. 20
7.4 EDW1850............................................................................................................................................ 20
7.5 EDW1950/1953................................................................................................................................... 20
7.6 EDW3510............................................................................................................................................ 21
7.7 EDW2500 SWISS............................................................................................................................... 22
7.8 EDW1850/1950................................................................................................................................... 23
7.8.1 LED test and cancelling alarms stored ...................................................................................................... 23
7.9 EDW1850/1950................................................................................................................................... 23
7.10 Test programme ............................................................................................................................. 23
7.11 EDW1850/1950 .............................................................................................................................. 24
7.12 Enable/Disable additional rinse ...................................................................................................... 24
7.13 EDW750 ......................................................................................................................................... 25
7.14 EDW1850/1950 .............................................................................................................................. 25
7.15 EDW1953 TOUCH ......................................................................................................................... 25
8 Service Mode Settings for EDW2510 “Touch”........................................................................................26
8.1 Accessing diagnostics mode .............................................................................................................. 26
8.2 Alarms and activating individual components ..................................................................................... 27
9 Alarm codes............................................................................................................................................29
9.1 Alarm Management............................................................................................................................. 29
9.2 Description of the alarms .................................................................................................................... 30
10 Technical details .....................................................................................................................................36
10.1 New hydraulic circuit....................................................................................................................... 36
10.2 New components............................................................................................................................ 38
10.3 Water circuit.................................................................................................................................... 40
10.4 Single-phase asynchronous washing pump ....................................................................................41

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10.5 Three-phase washing pump - inverter motor...................................................................................42
10.6 Drain pump ..................................................................................................................................... 44
10.7 Heating element ............................................................................................................................. 45
10.8 Analogue pressure switch .............................................................................................................. 46
10.9 Flowmeter....................................................................................................................................... 47
10.10 Detergent dispenser ....................................................................................................................... 50
10.11 Traditional door............................................................................................................................... 51
10.12 ON/OFF Switch .............................................................................................................................. 52
10.13 Beam-on-Floor................................................................................................................................ 55
10.14 EDW1xxx-2G operating diagram.................................................................................................... 56
10.15 EDW3000 operating diagram (single-phase motor) ........................................................................57
10.16 EDW3000 operating diagram (three-phase Inverter motor) ........................................................... 58
10.17 Components check for AC motor ................................................................................................... 59

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1 Purpose of this manual
The purpose of this Service Manual is to provide Service Engineers with technical information
regarding the new range of “ProClean/RealLife” dishwashers and to give a description of the alarm codes
and service functionality of the following families:
• EDW5xx
• EDW750
• EDW1xxx-2G
• EDW2500
• EDW3000
• EDW3510
This Manual describes:
• General characteristics
• Control panel and programmes
• Technical characteristics
• Guide to diagnostics
For more detailed information regarding the hydraulic circuits and the structural characteristics of the appliances,
please refer to the Service Manual for the “ProClean/RealLife” structure.
2 Precautions
• Electrical appliances must be serviced only by qualified Service Engineers.
• Always remove the plug from the power socket before touching internal
components.
REVISIONS:
Revision Date Description
00 12/2009 Document creation
01 07/2010 Added Service Mode Settings for EDW2510 “Touch”
02 10/2010 Alarm i00 added
03 01/2011 Stylings updated and “Service Mode” variants added
04 09/2016 Alarm codes updated

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3 Styling overview
3.1 Free Standing
EDW2500
EDW1510-1750
EDW1500
EDW750
EDW1850
EDW1950
EDW3510

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3.2 Fully Integrated
EDW1953
EDW1103

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3.3 Built In
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EDW750
EDW1850
EDW1950
EDW3510
EDW2500 SWISS

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EDW 500
EDW 503
EDW 1503

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4 Location of LEDs and Push Buttons
4.1 EDW1xxx-2G display boards
EDW 1500-2G-UI:
EDW 1510-2G-UI (also used as EDW 1750-2G-UI)
EDW 1503-2G-UI (also used as EDW1753-2G-UI):
EDW 1103-2G-UI (also used as EDW603 user interface):
4.2 EDW3000 display boards
4.3 “New Collection” display boards
EDW750 EDW1850 EDW1950 TOUCH
EDW3510 EDW1953 FI
EDW500 EDW 503 EDW1503 1.5 DIGIT

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5 Reset
“Reset” is a special kind of User mode to stop or deselect a running programme. When this function
is enabled, the appliance will be on stand-by without any selected settings.
RESET can only be performed after the washing cycle has started.
With EDW1xxx-2G display boards: press buttons S2+S3 simultaneously for at least 1 sec or press
the specific button dedicated to this function by the custom software.
With EDW3000 display boards: press buttons S3+S4 simultaneously for at least 1 sec or press the
specific button dedicated to this function by the custom software.
1 3
2 4
With display boards from the “New Collection”: press buttons S1+S2 or S3+S4 simultaneously for at
least 1 sec or press the specific button dedicated to this function by the custom software.

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6 User Mode Settings
6.1 Entering the User Mode
You can enter this Mode by pressing the two configured buttons simultaneously for at least 2 sec after
the appliance has been turned on and is on stand-by without any selected programme:
with EDW1xxx-2G display boards: by pressing buttons S2+S3.
with EDW3xxx display boards: from the options menu.
You can quit User Mode by turning off the appliance or after a 60 sec timeout.
When this mode is enabled, it is indicated by the flashing of the LEDs corresponding to the buttons available
in this mode. The User mode is incorporated into the options menu on the displays.
Example for a 3-digit display:
1. 2.
For the EDW750, set the knob to a position without a washing cycle indication, as shown in the
figure, and press buttons S1+S2 simultaneously for a few seconds.
For the EDW1850-1950, you can enable it by pressing the two configured buttons simultaneously for
at least 2 sec after the appliance has been turned on and is on stand-by without any selected programme:
For the EDW1953 TOUCH, you can enable it by pressing the two configured buttons simultaneously
for at least 2 sec after the appliance has been turned on and is on stand-by without any selected
programme:

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6.2 Water hardness
The water hardness setting range is from 1 to 10 (soft to hard).
In appliances with a 3-digit display, once you have entered the User mode, press button S1 to display the
current water hardness level from “1L” to “10L”.
In appliances without a display, once you have entered the User mode, press button S1 to display
the current water hardness level from “1L” to “10L" with the flashing of the cycle end LED.
Press button S1 to increase the hardness setting by one.
The new level is displayed accordingly. To store the new setting, press button S0.
6.2.1 EDW500
1. Hold down button S1
2. Turn the knob clockwise to Position 1
� LEDs LD0 and LD1 flash
� release button S1
3. Press button S1
� the level of regenerating is displayed through a series of
flashes, interrupted by pauses, emitted by the Cycle end
LED
4. Press button S1 again to increase the regenerating level
6.2.2 EDW503
Hold down the programmes button.
LED L1 flashes and L2 is turned on permanently.
Release the button.
LED L1 flashes, LED L2 is turned off and the CYCLE END LED flashes to indicate the regenerating level set.
To modify the regenerating level, press the programmes button.
The CYCLE END LED will flash to indicate the new level set.

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6.2.3 EDW750
6.2.4 EDW1850/1950
6.2.5 EDW1953 TOUCH

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6.3 Disable/Enable Rinse Aid
This function allows you to disable the rinse aid dosing.
In appliances with a 3-digit display, once you have entered the User mode, press button S2 to display the
current status where “0d” indicates it is disabled and “1d” that it is enabled.
To modify the enabled/disabled status, press button S2.
The new setting is then displayed.
6.4 Disable/Enable Buzzer
This function allows you to disable the cycle end buzzer.
In appliances with a 3-digit display, once you have entered the User mode, press button S3 to display the
current status where “0b” indicates it is disabled and “1b” that it is enabled.
To modify the enabled/disabled status, press button S3.
The new setting is then displayed.
6.4.1 EDW503
Hold down the programmes button
LED L1 flashes and L2 is turned on permanently
Release the button and press it again: LED L1 is lit permanently and L2 flashes
After a few seconds, LED L1 is turned off and L2 flashes;
the CYCLE END LED will indicate whether the buzzer is enabled.
To enable or disable the BUZZER, press the programmes button (cycle end on = buzzer enabled).

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7 Service Mode Settings
Only if the appliance is on stand-by awaiting instructions, hold down the two configured buttons
simultaneously, turn on the appliance and wait for at least 4 sec.
With EDW1xxx-2G display boards: by pressing buttons S1+S3.
With EDW3xxx display boards: by pressing buttons S1+S3 (EDW2500) or S3+S4 (EDW2503).
7.1 EDW500
7.1.1 Diagnostics mode, alarm reading and testing
1. Hold down button S1
2. Turn the knob anti-clockwise to Position 5
� LEDs LD0 and LD1 flash
� release button S1
3. Press button S1
� the first alarm stored is displayed: the Cycle end LED
flashes in sequence, interrupted by pauses, corresponding
to the alarm: for the alarm code, please see the alarms
summary table.
4. Press button
S
1
again to display the second alarm
5. Press button
S
1
once more to display the third alarm
6. Press button
S
1
for the fourth time to move on to enabling the appliance's actuators, the CYCLE END
LED is on:
� 4th activation: regenerating solenoid valve
� 5th activation: drain pump
� 6th activation: water fill to level solenoid valve
� 7th activation: heating (only if the level of water is reached)
� 8th activation: washing pump
� 9th activation: detergent/rinse aid dispenser
�
10th activation: drying fan (if turbo-dry)
7. All the positions can be repeated by pressing button S1 in sequence
The components are powered if the appliance door is shut: open the door to select another
actuator then shut it again.
If button S1 is not pressed for 60 seconds, you automatically quit diagnostics mode.

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7.1.2 Deleting alarm memory/LED test
1. Hold down button S1
2. Turn the knob anti-clockwise to Position 5
� LEDs LD0 and LD1 flash
� release button S1
3. Turn the knob to Position 4
4. Press button S1
� all LEDS flash for 30 sec
7.1.3 Functional test cycle
7.1.3.1 Cycle setting
1. Hold down button S1
2. Turn the knob anti-clockwise to Position 5
� LEDs LD0 and LD1 flash
� release button S1
3. Turn the knob to Position 3
� press button S1
� the cycle starts: during its progress, the programme
behaves like a normal cycle
� LED LD1 flashes
N.B.: at the beginning of the next programme after the test cycle, the resins are washed. The overall duration
of the cycle is approximately 50 minutes.
7.1.4 Quitting diagnostics mode
To quit diagnostics mode, press button S0 and turn off the appliance
or wait 60 seconds: the LEDS are turned on and the appliance is on stand-by awaiting your selection

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7.2 EDW503
7.2.1 Diagnostics mode, alarm reading and testing
1. Hold down the PROGRAMMES button
2. Turn the appliance on at the ON/OFF button
� LED L1 flashes
� LEDs L2 and L3 are turned on
3. Wait for LEDs L2 and L3 to be turned off
4. Press the PROGRAMMES button
� the CYCLE END LED shows the first alarm stored with a sequence of flashes
5. Press the PROGRAMMES button twice more to display the other two alarms stored
� the CYCLE END LED shows the alarms
6. From the 4th activation, the individual components testing begins according to the defined sequence
� LED L2 is turned on permanently for the duration of the components test
� 4th activation: regenerating solenoid valve
� 5th activation: drain pump
� 6th activation: water fill to level solenoid valve (level of water reached)
� 7th activation: heating (only if the level of water is reached)
� 8th activation: washing pump
� 9th activation: detergent/rinse aid dispenser
� 10th activation: drying fan
� 11th activation: the cycle is repeated from the first alarm
All the positions can be repeated by pressing button S2 in sequence.
The components are powered with the appliance door open and shut.
If the PROGRAMMES button is not pressed for 60 seconds, you automatically quit diagnostics
mode.
7.2.2 Deleting alarm memory/LED test
1. Hold down the PROGRAMMES button
2. Turn the appliance on at the ON/OFF button
� LED L1 flashes
� LEDs L2 and L3 are turned on
3. Press the PROGRAMMES button before LEDs L2 and L3 are turned off
� LED L2 flashes
� LEDs L1 and L3 are turned on
4. Wait for LEDs L1 and L3 to be turned off
5. Press the PROGRAMMES button
� all LEDs flash and the buzzer sounds

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Phase
Dur
a
tion
Wate
r
f
ill
,
Turb
o
acti
v
at
i
on
30
’
’
Washing continuously, dispenser
opening
45’’
Drain dilution
Water fill ---
Washing continuously 60’’
Drain dilution
Water fill ---
Controlled washing at 2600 rpm,
heating at 60 °C
Controlled washing at 2600 rpm,
temperature kept at 60 °C
1200’’
7.2.3 Functional test cycle
7.2.3.1 Cycle setting
1. Hold down the PROGRAMMES button
2. Turn the appliance on at the ON/OFF button
� LED L1 flashes
� LEDs L2 and L3 are turned on
4. Press the PROGRAMMES button twice before LEDs L2 and L3 are turned off
� LED L3 flashes
� LEDs L1 and L2 are turned on
5. Wait for LEDs L1 and L2 to be turned off
6. Press the PROGRAMMES button to start the test cycle
� LED L4 is turned off
� LED L2 flashes for the duration of the cycle
7.2.3.2 Cycle phases
temperature
time
N.B.: at the beginning of the next programme after the test cycle, the resins are washed. The overall duration
of the cycle is approximately 50 minutes.
7.2.4 Reading alarms and activating components
Once in Service mode, the reading of alarms and the activation of individual components is possible using
button S1. After the last component in the list has been activated, the sequence will be repeated.
The sequence is defined as follows:
1. Alarm 1
2. Alarm 2
3. Alarm 3
4. Regenerating solenoid valve
5. Drain pump
6. Fill solenoid valve
7. Heating element (if the level of water is reached)
8. Washing pump (at 2800 rpm)
9. Detergent dispenser
10. Drying fan
If a display is available, the activated component is indicated by its own number in the list (starting with
number 4).

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7.3 EDW750
7.4 EDW1850
7.5 EDW1950/1953
In the EDW1950/1953 version, you can only enter service mode with the appliance turned ON and on
stand-by awaiting instructions. Hold down the two configured buttons and wait at least 4 sec.