ewm2000_service_manual.pdf

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SERVICE MANUAL
WASHING
Washing machines
&
Washer-Dryers
with EWM2000
Electronic Control
Styling:
Multipanel Built-in
Production: Porcia (IT)
(SW: W2C0145x )
Publication No.
ELECTROLUX ZANUSSI S.p.A.
Spares Operations Italy
Corso Lino Zanussi,30
I - 33080 PORCIA /PN (ITALY)
599 35 26-84
Fax +39 0434 394096
EN
Edition: 2002-06-03
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Contents
1
General characteristics ......................................................................................................................... 5
2
Control panel ........................................................................................................................................ 6
2.1 General features ............................................................................................................................. 6
2.2 Control/Display board...................................................................................................................... 7
2.2.1 Version with display (washing machines and washer/dryers): ................................................ 7
2.2.2 Version without display (washing machines) .......................................................................... 7
2.3 Washing programmes ..................................................................................................................... 8
2.3.1 24-position selector knob.......................................................................................................8
2.4 Push-button function ....................................................................................................................... 9
2.5 “ON/OFF” Button........................................................................................................................... 10
2.6 Washing cycle options................................................................................................................... 10
2.6.1 “Prewash” button................................................................................................................. 11
2.6.2 “Stains” button..................................................................................................................... 11
2.6.3 “Intensive” / “Heavy soil” button ........................................................................................... 11
2.6.4 “Short”/ “Very short” button (“Light soil” / “Daily”).................................................................. 11
2.6.5 “Level of soiling” button .......................................................................................................11
2.6.6 “BIO” button ........................................................................................................................ 11
2.6.7 “Half load” button................................................................................................................. 11
2.6.8 “Super rinse” or “Extra rinse” button.................................................................................... 11
2.6.9 “Rinse hold” or “Night cycle” ................................................................................................ 12
2.6.10 “Spin” button ....................................................................................................................... 12
2.6.11 “Reduced spin speed” button............................................................................................... 13
2.7 "Delayed start” button.................................................................................................................... 13
2.8 “No Buzzer” option ........................................................................................................................ 13
2.9 Options for washer-dryers ............................................................................................................. 14
2.9.1 “Electronic drying” button..................................................................................................... 14
2.9.2 “Drying time” button............................................................................................................. 14
2.10 “Start/Pause” button ...................................................................................................................... 14
2.11 Display.......................................................................................................................................... 15
2.12 Programme phase Leds ................................................................................................................ 16
3
Washing programmes (sequence charts) ............................................................................................ 17
3.1
C (Jetsystem) ............................................................................................................... 19
Cotton 60
°
3.2
C (Traditional/Eco-ball) ................................................................................................. 20
Cotton 60
°
3.3
C (Jetsystem) ......................................................................................................... 21
Synthetics 40
°
3.4
C (Traditional/Eco-ball) ........................................................................................... 22
3.5 Hand wash 30º (Jetsystem)........................................................................................................... 23
3.6 30º Hand wash (Traditional) .......................................................................................................... 23
3.7 Drying Cotton (Jetsystem - Traditional).......................................................................................... 24
3.8 Drying Synthetics (Jetsystem - Traditional).................................................................................... 24
3.9 “FUCS” ......................................................................................................................................... 25
3.9.1 Examples of operation of the unbalancing control function ................................................... 25
3.10 Spins ............................................................................................................................................ 27
3.10.1
Synthetics 40
°
Spin IMP_C0_INP_SECT .................................................................................................... 27
3.10.2
Spin IMP_C0_SP_SECT ..................................................................................................... 27
3.10.3
Spin IMP5 ........................................................................................................................... 27
3.10.4
Spin IMP7 ........................................................................................................................... 27
3.10.5
Spin IMP4 ........................................................................................................................... 28
3.10.6
Spin IMP6-RINSE................................................................................................................ 28
3.10.7
Spin IMP6_INP_SECT ........................................................................................................ 28
3.10.8
Spin IMP6_SP_SECT.......................................................................................................... 29
3.10.9
Spin IMP6_QUICK .............................................................................................................. 29
3.10.10
Spin IMP_SR ...................................................................................................................... 29
3.10.11
Spin IMP_BEFORE_CF ...................................................................................................... 29
3.10.12
Spin IMPCF_01_AC ............................................................................................................ 30
3.10.13
Spin IMPCF_01_DC............................................................................................................ 30
3.10.14
Spin IMPCF_QUICK............................................................................................................ 30
4
Technical characteristics..................................................................................................................... 31
4.1 EWM2000 Electronic control unit................................................................................................... 31
4.1.1
Memories of the microprocessor (main PCB)....................................................................... 32
4.2
Analog pressure switch (electronic) ............................................................................................... 33
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4.3 Instantaneous door safety device .................................................................................................. 34
Operation principle ............................................................................................................................. 34
4.4 Detergent dispenser ...................................................................................................................... 35
4.5 Power supply to the motor............................................................................................................. 36
4.5.1
AC/DC Converter ............................................................................................................... 36
4.6
Circulation pump ........................................................................................................................... 37
4.7
Heating ......................................................................................................................................... 37
4.8
Drain cycle.................................................................................................................................... 37
5
Drying circuit (washer-dryers) ............................................................................................................. 38
5.1.1
Temperature control ............................................................................................................ 39
5.1.2
Determining the drying time:................................................................................................ 39
6
Diagnostics system............................................................................................................................. 40
6.1 Access to diagnostics and configuration system ............................................................................ 40
6.2 Diagnostics system ....................................................................................................................... 41
6.3 Display board diagnostics.............................................................................................................. 42
6.3.1 Programme selector ............................................................................................................ 43
6.4 Diagnostics cycle .......................................................................................................................... 44
6.5 Alarms .......................................................................................................................................... 45
6.6 Reading the last alarm condition.................................................................................................... 46
6.6.1 Diagnostics cycle alarms ..................................................................................................... 46
6.7 Alarm codes.................................................................................................................................. 47
6.8 Cancelling the last alarm condition ................................................................................................ 51
6.9 Configuration of the main PCB ...................................................................................................... 52
6.9.1 Configuration code ..............................................................................................................53
6.9.2 Reading the configuration code ........................................................................................... 53
6.9.3 Example of configuration ..................................................................................................... 54
6.10 Exiting the diagnostics cycle.......................................................................................................... 55
6.11 Operating time counter.................................................................................................................. 55
6.11.1
Reading the operating time.................................................................................................. 55
7
DEMO Mode ...................................................................................................................................... 56
7.1
Setting demo mode ....................................................................................................................... 56
7.2
Exiting demo mode ....................................................................................................................... 56
8
Accessibility to electronic control......................................................................................................... 57
8.1 Cover............................................................................................................................................ 57
8.1.1 Main PCB............................................................................................................................ 57
8.2 Control panel................................................................................................................................57
8.2.1
Control/Display board .......................................................................................................... 57
8.2.2
Buzzer ................................................................................................................................ 57
8.2.3
Programme selector ............................................................................................................ 57
9
Basic circuit diagram........................................................................................................................... 58
9.1
Version with AC motor................................................................................................................... 58
9.2
Version with DC motor .................................................................................................................. 59
9.3
Key to circuit diagram.................................................................................................................... 60
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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 or traditional washing system
- "Total exchange" jetsystem or traditional rinse system
- spin speeds up to 1600 rpm
- commutator motor AC or DC with separate converter
- heating element in the tub, 1950W
- "Handwash" programme
-
"Easy iron" programme
-
rinse hold/night cycle
Washer-dryers:
- water condensation drying system
-
automatic or time-controlled drying cycles
-
drying heater: 550 + 550 W
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