Electrolux EDW 1000 User manual

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SERVICE MANUAL
DISHWASHERS
ELECTROLUX ZANUSSI S.p.A.
Corso Lino Zanussi,30
Publication no.
I - 33080 PORCIA /PN (ITALY) 599 34 60-32
Tel [phone]
Fax [phone]
TSE-P
Edition: 16.02.2001
EN/SERVICE/LF
DISHWASHERS
EDW 1000
(Mini_Tronic)
45 cm
Free-standing / Built-in
(FUNCTIONALITIES)

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CONTENTS
1. INTRODUCTION
1.1 General characteristics
1.2 Field of application
1.3 Electronic module
1.4 Aesthetic characteristics
1.5 Structural characteristics
2. FUNCTIONAL CHARACTERISTICS
2.1 Control panel
2.2 Supplementary options
2.3 Power failure
2.4 Selection of programmes
2.5 Selection of programmes with Delayed Start option
3. SPECIFICATIONS FOR ACTUATORS AND SENSORS
3.1 Components
3.2 Sensors
4. OPERATION OF THE MOTOR
4.1 Wash Motor
4.2 Washing/Drain functions
4.3 Washing system
4.4 Drain Motor
5. HYDRAULIC CIRCUIT
5.1 Water fill system
5.2 Control of water fill
5.3 Control of stability of wash water level
5.4 Control of drain function
5.5 Regeneration
6. DRYING
6.1 Definition of the drying system
7. SAFETY FEATURES – CONTROLS - ALARMS
7.1 Definition of the system
7.2 Displaying memorized alarm conditions
7.3 Cancelling alarm conditions
7.4 Description of safety features / alarms
7.5 Supplementary safety features
8. ELECTRICAL FUNCTIONALITIES
8.1 Circuit diagram
8.2 Basic electrical diagram
8.3 Table of washing programmes
9. SERVICING
9.1 Component diagnostics
9.2 Function testing cycle
9.3 Checking the efficiency of the components
9.4 Checking alarm conditions
9.5 Summary of functions

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1. GENERAL
1.1 GENERAL CHARACTERISTICS
Power supply 220 - 240 V / 50 Hz (limits 187÷254 V)
Total power absorbtion 2300 W (2100 W heating element)
Water supply Min. / Max. Pressure: 5 ÷80 N/cm²
Load capacity 12 Place settings
Consumption (BIO AAB programme):
Water 14 litres
Energy 0.8 KWh
Duration of cycle 120 minutes
Noise level 50 db (A) (sound pressure)
1.2 FIELD OF APPLICATION
Washing system COMBINED
IMPULSE
Water fill level PRESSURE SWITCH CONTROL
SOFTWARE (Level stability)
Water heating HIDDEN HEATING ELEMENT
Temperature control TEMPERATURE SENSOR ( NTC )
Drying cycle ACTIVE
Safety features/alarms TOTAL PROTECTION (HYDRAULIC/SOFTWARE)
1.3 ELECTRONIC CONTROL MODULE
Power board MAIN CONTROL BOARD (built-in microprocessor)
Control/Display board USER / MACHINE INTERFACE
Module with vertical controls Module with horizontal controls

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1.4 AESTHETIC CHARACTERISTICS
Control panel – VERTICAL version
VARIANTS
ON key on right
ON key on left 
Control panel – HORIZONTAL version
VARIANTS
ON key on right
ON key on left 

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1.5 STRUCTURAL CHARACTERISTICS
Structure: MODULAR 45 cm Functionality: EVOLUTION
Version: FREE-STANDING / BUILT-IN
Controls: KEYS
LAYOUT OF CONTROLS
[S0] - ON/OFF key
[S1] … [S3] - PROGRAMME SELECTION keys
[S4] … [S6] - PROGRAMME SELECTION and/or OPTION keys
[LD1] … [LD3] - “PROGRAMME” INDICATOR LEDS
[LD4] [LD5] [LD12] - “PROGRAMME” and/or “OPTIONS” INDICATOR LEDS
[LD6] … [LD8] - “DELAYED START” INDICATOR LEDS
[LD9] … [LD11] - “CYCLE PHASE” INDICATOR LEDS
[LD13] [LD14] - “SALT” / “RINSE AID” LEDS

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2. FUNCTIONAL CHARACTERISTICS
2.1 CONTROL PANEL
ON/OFF KEY [S0]
Switches the dishwasher ON and OFF.
When the LED [LD0] lights, this means that the appliance is switched on.
2.1.1 PROGRAMME AND OPTION KEYS [S1 S2 S3 S4 S5 S6]
Used to select a washing programme and the desired options (if featured).
Each key corresponds to a specific programme or option (Delay, ½ Load).
Each key features a LED which switches on and off when the key is pressed.
Each type of dishwasher may feature from 3 keys (minimum) to 6 keys (maximum).
Keys [S1 S2 S3] are featured on all models, since these are used for special functions by
Service engineers.
2.1.2 CYCLE PHASE LEDs [LD9 LD10 LD11]
These LEDs light during the various phases of the washing cycle.
[LD9] - WASHING
[LD10] - DRYING
[LD11] - END OF CYCLE
The LEDs light as follows:
Program selection - the two LEDs [LD9 LD10] flash simultaneously.
Programme execution - only one LED [LD9] or [LD10] relative to the current phase of the
cycle remains lit.
End of cycle - only one LED [LD11] remains lit; the remaining LEDs are unlit.
2.1.3 INDICATOR LEDs [ LD13- LD14]
These LEDs light to indicate the corresponding functions.
[LD13] - SALT
[LD14] - RINSE-AID
These LEDs light during the various phases as follows:
Programme selection - the LEDs light (fixed).
Programme execution - the LEDs remain unlit.
These LEDs indicate the following:
[LD13] - the salt required for regeneration requires topping up.
If the regeneration level is set to [ 0] (no regeneration), this LED
remains unlit at all times.
[LD14] - the rinse-aid liquid requires topping up.

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2.2 SUPPLEMENTARY OPTIONS (factory-set)
2.2.1 POSSIBLE OPTIONS: «DELAY» & «1/2 LOAD» (if featured)
Only one option can be selected at a time («DELAY» or «1/2 LOAD»), never both.
If featured, the option may be associated with keys [S4] or [S5] or [S6].
2.2.1.1 «DELAYED START» SELECTOR KEY Leds [LD6 LD7 LD8]
Determines the delay time before the selected cycle is started.
Press this key repeatedly until the desired delay time is displayed; the corresponding LEDs will
switch on and off.
LEDs [LD6 LD7 LD8] correspond to [3h.. 6h.. 9h..]
The LED which remains lit [LD6 LD7 LD8] indicates the selected delay time.
When the selected delay time is confirmed, the LEDs (e.g.[LD8 LD7 LD6] switch off one at a
time until all three are off.
2.2.1.2 «1/2 LOAD» SELECTOR KEY LEDs [LD4] or [LD5] or [LD12]
The 1/2 LOAD key is used to optimize the washing cyle when small quantities of dishes are to be
washed..
The washing cycle is modified when the following parameters are selected:
Exclusion of the PRE-WASH cycle (in cycles that normally include the PRE-WASH).
Reduction of the cycle time (18 >28 min).
Reduction of water consumption for the cycle (~ 4lt).
In this case, LEDs [LD6 LD7 LD8] are not present on the control panel.
2.3 POWER FAILURE
- A POWER FAILURE is detected if the mains power supply is interrupted for a very brief period
(between 20 and 40mSec).
- The POWER FAILURE function consists of maintaining the cycle status information when a power
failure occurs, so that, when power is restored, the appliance resumes the cycle from the point at
which it was interrupted.
The POWER FAILURE function is as follows:
When a power failure is detected, all loads switch off simultaneously, and the energy stored in the
capacitor is used to memorize the machine status data in the EEPROM; when the power supply is
restored, this data is used to resume the cycle from the point at which it was interrupted.

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2.4 SELECTION OF PROGRAMMES
2.4.1 SELECTING THE CYCLE (with the door closed)
Switch the dishwasher ON by pressing [S0]; the “POWER ON” pilot lamp lights [LD0].
The SALT and RINSE-AID LEDs [LD13 LD14] may light.
Press the key for the desired programme [S1 S2 S3 ... ...].
The LED corresponding to the selected programme lights [LD1 LD2 LD3 ... ...].
The two cycle phase LEDs [LD9 LD10] flash.
Select the desired option (if featured).
LED [LD..] lights to confirm the option selected.
About 6 seconds after the last key is pressed, the washing programme commences.
If the programme is selected with the door OPEN, the programme will start 6 seconds after the
door is closed.
2.4.2 CYCLE EXECUTION
Washing programme currently being performed.
The LED relative to the selected programme [LD..] remains lit.
The Options LED, too [LD..] may remain lit.
LED [LD9] for the current phase remains lit; the other LEDs [LD10 LD11] remain off.
As the programme proceeds and at the end of the phase, LED [LD9] switches off; Led [LD10],
corresponding to the subsequent phase of the cycle, lights.
All the keys (with the exception of the key for the selected programme, which can be used to
cancel the current cycle) are disabled, i.e. no parameter can be modified.
2.4.2.1 CYCLE PAUSE – The programme is suspended (though all the parameters remain stored in
memory).
If key [S0] is pressed, the power supply is disconnected and the machine is switched off.
If key [S0] is pressed again, the machine is switched on again and the cycle resumes from the
point at which it was interrupted.
If the door is opened, the appliance remains connected to the power supply (though the power
loads are disactivated).
The LED for the current phase of the cycle [LD9] or [LD10] flashes.
The LED corresponding to the selected programme [LD..] (as well as the LED for any options
that have been selected) remain lit.
When the door is closed, the cycle resumes from the point at which it was interrupted.
2.4.2.2 CANCELLING THE CYCLE
To cancel the current programme, press the key relative to the programme selected [S..] for 3
seconds; this key corresponds to LED [LD..] ; the appliance returns to programme selection
mode.
2.4.3 END OF CYCLE
The cycle phase LED [LD11] lights to indicate that the cycle has ended.
To cancel the programme that has just ended, open the door or switch off the dishwasher by
pressing [S0].

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2.5 SELECTING A PROGRAMME WITH THE DELAYED START OPTION
2.5.1 PROGRAMME SELECTION (with the door closed)
Press [S0] to switch the dishwasher on; the “POWER ON” LED [LD0] lights.
Perform the procedure for selection of the programme / options as described in paragraph
(2.4.1).
Press one of the keys [S4] or [S5] or [S6] (i.e. the key corresponding to the delayed start
function) to select the desired delay time.
Press [S..] repeatedly; LEDS [LD6 LD7 LD8], which correspond to the possible delay times (in
hours) will light in sequence.
To cancel the delay time, press [S..] repeatedly until the LEDs switch off.
6 seconds after [S..] is pressed for the last time, the delayed start countdown will begin.
If the delayed start time is selected with the door open, the countdown will begin 6 seconds after
the door is closed.
2.5.2 PROGRAMME EXECUTION
The delayed start countdown has started.
The countdown time decreases from the maximum (9 hours) to (0 hours).
As the countdown proceeds, the time to elapse is shown by LEDs [LD8 LD7 LD6] and is updated
at intervals of 3 hours.
example: If a 9-hour delay is selected, LED [L8] will be lit; after 3 hours, this LED switches off
and LED [L7] lights; after another 3 hours, LED [L7] switches off and LED [L6] lights; three hours
later, all the LEDs are switched off.
LED [LD..] for the selected programme (and [LD..] if any options have been selected) remain lit
for the entire duration of the countdown.
The cycle phase LEDs [LD9 LD10 LD11] remain unlit.
All the keys are disabled (i.e. none of the parameters can be modified) with the exception of the
key for the selected programme, which can be used to cancel the programme, and the DELAY
key, which can be used to modify or cancel the delayed-start function.
The countdown is not interrupted if the door is opened.
At the end of the countdown (i.e. when LEDs [LD6 LD7 LD8] all switch off), the washing
programme starts automatically.
The cycle phase LED [LD9] relative to the programme being performed lights.
From this point, repeat the steps described in the previous paragraphs (from 2.4.2 on).
2.5.2.1 CANCELLING THE DELAYED START OPTION
To cancel the delayed start option, press the DELAY key [S..] repeateadly until the LEDs [LD8
LD7 LD6] switch off; after 6 seconds, the programme will start automatically.