Electrolux WD001326 Service Manual
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Electrolux WD001326 Service Manual

Electrolux WD001326 Service Manual

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ELECTROLUX ZANUSSI S.p.A.
Corso Lino Zanussi,30
I - 33080 PORCIA /PN (ITALY)
Tel +39 0434 394850
Fax +39 0434 394096
TSE-P
Edition: 15.01.2001
TSE-P 01.01 EB
Publication no.
599 34 55-61
EN/SERVICE/EB
1/56

SERVICE MANUAL

WASHING
WASHING MACHINES
&
WASHER DRYERS
WITH EWM2000
ELECTRONIC CONTROL
Styling:
Multipanel (Built-in)
Production: Porcia/PN (IT)
599 34 55-61

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  • Page 1: Service Manual

    SERVICE MANUAL WASHING WASHING MACHINES & WASHER DRYERS Publication no. ELECTROLUX ZANUSSI S.p.A. WITH EWM2000 Corso Lino Zanussi,30 ELECTRONIC CONTROL I - 33080 PORCIA /PN (ITALY) 599 34 55-61 Tel +39 0434 394850 Styling: Fax +39 0434 394096 EN/SERVICE/EB Multipanel (Built-in)

  • Page 2: Table Of Contents

    CONTENTS GENERAL CHARACTERISTICS .............. page 3/56 CONTROL PANEL ..................page 4/56 Control/display board ................. page 5/56 WASHING PROGRAMMES ..............page 6/56 Programme selector ................... page 6/56 Operation of the buttons................page 8/56 Washing cycle options................page 9/56 Buttons ....................... page 10/56 Display......................

  • Page 3: General Characteristics

    GENERAL CHARACTERISTICS Washing machines/washer-dryers with EWM2000 electronic control system: - 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 - water condensation drying system...

  • Page 4: Control Panel

    CONTROL PANEL The control panel fitted to the appliance may be different depending on: Þ the control/display board (3 versions) Þ the programme selector Þ the different design of the panel (on the number of buttons, LEDs) Þ the different configuration of the buttons Control panel example: GENERAL FEATURES Programme selector:...

  • Page 5: Control/Display Board

    CONTROL/DISPLAY BOARD 1. Version with display (washing machines and washer/dryers): Þ 3 digits Þ 28 LEDs Þ 8 buttons 2. Version without display (washing machines): Þ 21 LEDs Þ 6 buttons 3. Version without display (washing machines): Þ 14 LEDs Þ...

  • Page 6: Washing Programmes

    WASHING PROGRAMMES WASHING PROGRAMMES (24 position selector knob – WM & WD) Programme Temperature No. of Spin * rinses CANCEL (RESET) COTTON (WHITE) IMPCF_1 90° COTTON ECO IMPCF_1 67° COTTON (COLOUREDS) IMPCF_1 60° COTTON (COLOUREDS) IMPCF_1 50° ο 40° Economy COTTON (COLOUREDS) IMPCF_1 40°...
  • Page 7 WASHING PROGRAMMES (12 position selector knob – WM) Programme Temperature No. of Spin * rinses CANCEL (RESET) COTTON (WHITE) 90° ÷ 0°C IMPCF_1 COTTON (COLOUREDS) 60° ÷ 0°C IMPCF_1 SYNTHETICS 60° ÷ 0°C IMP5 DELICATES 40° ÷ 0°C IMP7 WOOL 40°...

  • Page 8: Operation Of The Buttons

    PUSH-BUTTON FUNCTION The buttons’ function can be configured, and therefore it varies according to the model. Matrix of the function of the different push-buttons: Button LED Function 1 Function 2 Function 3 Function 4 Function 5 Function 6 Function 7 Maximum Maximum 90°C...

  • Page 9: Washing Cycle Options

    “ON/OFF” button Press this button to switch the machine on. Press it again to switch the machine off. WASHING CYCLE OPTIONS The washing cycle options should be entered after selecting the desired programme (using the selector knob) and before pressing START/PAUSE. When the button is pressed, the corresponding LED lights up;...
  • Page 10 “PREWASH” button This option selects an additional prewash phase at 30º C at the beginning of the cycle, followed first by a drain phase and then by the next phase. In the COTTON and SYNTHETICS cycles also a short spin phase is performed.
  • Page 11 “RINSE HOLD” button When this option is selected the cycle ends leaving water in the tub after the final rinse to prevent fabrics from creasing. In the RINSE HOLD phase, the final spin speed can be modified; press the START/PAUSE button to complete the cycle, or select a new drain or spin programme.
  • Page 12 “REDUCED SPIN SPEED” button When this button is pressed, the speed of the final spin in COTTON cycles is reduced to 650 rpm.; in the SYNTHETICS, DELICATES and WOOL cycles it is reduced to 500 rpm. When the RINSE or SPIN cycles are selected, the spin structure changes from the COTTON to the DELICATES spin.
  • Page 13 “ELECTRONIC DRYING” button (WASHER-DRYERS, certain models only) It is possible to select two different electronic levels of dryness: one for COTTON and one for SYNTHETICS cycles: Þ Extra dry (only cotton) Þ Store dry (cotton and synthetics) Þ Iron dry (only cotton) The drying time is automatically calculated by the "Fuzzy"...

  • Page 14: Display

    DISPLAY The display shows the following information: Þ three flashing lights, when the appliance is switched on. Þ the wash programme duration; it is shown up after the programme has been selected. The time corresponding to the maximum wash load is shown up. While performing the cycle, the time decreases (updated) every minute.

  • Page 15: Programme Table Legend

    WASHING PROGRAMMES (SEQUENCE CHARTS) KEY TO PROGRAMMES Description Calibration Drain sub-phase for calibration of the electronic pressure switch Levels Level of water in the tub Control level for circulation pump Control level for drain pump Control level for motor Pumps Pump off Pump on Pump on from one level of pressure switch...
  • Page 16 SE Movement: VT movement during rinses in "jetsystem total exchange" COTTON programmes (virtual tank): 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: spin at 470 rpm (VT_MOV_CODE) to remove the water from the fabrics and therefore to increase the level in the tub.

  • Page 22: Fucs" (Fast Unbalance Control System)

    “FUCS” (Fast Unbalance Control System) The control procedure for unbalanced loads is performed dynamically, before each spin cycle, as follows: 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.
  • Page 23 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...

  • Page 24: Spin Cycles

    SPIN CYCLES IMP_C0 spin: pre-wash - COTTONS and SYNTHETICS, penultimate rinse - SYNTHETICS IMP5 spin: final - SYNTHETICS IMP7 spin: final - DELICATE FABRICS 24/56 TSE-P 01.01 EB 599 34 55-61...
  • Page 25 IMP4 spin: final - WOOL IMP6 spin: first intermediate spin - rinses – COTTON (maximum speed can be configured) IMP6-RINSE spin: intermediate rinses COTTON (maximum speed can be configured) 25/56 TSE-P 01.01 EB 599 34 55-61...
  • Page 26 IMPCF_1_AC spin: final – COTTON (AC motors) IMPCF_1_AC spin: final – COTTON (DC motors) 26/56 TSE-P 01.01 EB 599 34 55-61...

  • Page 27: Technical Characteristics

    TECHNICAL CHARACTERISTICS EWM 2000 ELECTRONIC CONTROL UNIT 1. Main PCB 2. Control/Display Board BUZZER CONTROL/DISPLAY BOARD PROGRAMME Microprocessor SELECTOR MAIN BOARD ELECTRICAL SENSORS LOADS Microprocessor 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 switch.

  • Page 28: Microprocessor Memory

    MICROPROCESSOR MEMORY (MAIN PCB) GENERAL INSTRUCTIONS PROGRAMME VARIABLES POWER FAIL CYCLE MACHINE & PARAMETERS CONFIGURATION EEPROM MACHINE STATUS The overall structure of the microprocessor memory on the main PCB is subdivided into three sections: 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.

  • Page 29: Electronic Pressure Switch

    ELECTRONIC PRESSURE SWITCH 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.

  • Page 30: Instantaneous Door Safety Device

    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.

  • Page 31: Detergent Dispenser

    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.
  • Page 32 Water fill to conditioner compartment (pre-wash and wash solenoids) Water fill to bleach compartment (bleach solenoid) Hot water fill (hot water/wash solenoids) 32/56 TSE-P 01.01 EB 599 34 55-61...

  • Page 33: Power Supply To Motor

    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.

  • Page 34: Recirculation Pump

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

  • Page 35: Drying (Washer/Dryers Only)

    DRYING (washer/dryers only) The drying system is identical to that used for washer/dryers with traditional timers. 1. Fan 2. Fan motor 3.Drying heating elements 4. Heating element casing 5. Duct 6. Door gasket 7. Tub 8. Tub-condenser hose 9. Drying condenser 10.
  • Page 36 Temperature control: An NTC sensor fitted to the duct is used to control the drying temperature; two safety thermostats (one of which is a manual-reset type) are fitted to the casing of the heating element. 1. NTC sensor for control of drying temperature 2.

  • Page 37: Diagnostic And Configuration Systems

    ACCESS TO THE DIAGNOSTICS / 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: - configuration of the main PCB - analysis of alarm conditions - control of the operation of each of the components in the appliance.

  • Page 38: Diagnostics System

    DIAGNOSTICS SYSTEM The diagnostics system is used to check the operation of all the components of the washing machine. After accessing the diagnostics routine (see "Access to the diagnostics / configuration system"), the correct operation of each component can be checked by turning the programme selector knob clockwise. CHECKING THE DISPLAY BOARD When the knob is in the first position (RESET) (after accessing the diagnostics system), the system checks the display board.

  • Page 39: Diagnostics Cycle

    DIAGNOSTICS CYCLE Correct operation of all the components in the appliance can be checked by turning the programme selector knob clockwise. The diagnostics cycles can be performed only if there is correct communication (connection) between the main PCB and the display board; also, the configuration of the appliance must be correct. The wash phase LEDs (and the display, if featured) show the binary code representing the closure of the programme selector contacts for two seconds.
  • Page 40 DIAGNOSTICS CYCLE PHASES Knob Function Components Operating Parameters position tested actioned conditions displayed Operation of the All the LEDs light in Always operative Button code display board sequence. When a button is pressed, the corresponding LED lights Water fill to wash - door interlock Door closed, water fill to anti- Water level in...

  • Page 41: Programme Selector

    PROGRAMME SELECTOR The table below shows the closure sequence of contact C6 (common) and the other contacts (C1 - C5) of the programme selector in the various positions, as well as the light-up sequence of the display. 24-position 12-position Closure of selector contacts Display selector knob selector knob...

  • Page 42: Alarms

    ALARMS The electronic control unit detects and recognises 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: problems with water fill problems with drain door open...

  • Page 43: Reading The Last Alarm

    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), turn the programme selector knob two positions counter-clockwise from the RESET position.

  • Page 48: Cancelling The Last Alarm Condition

    CANCELLING THE LAST ALARM CONDITION To cancel the last memorised alarm condition, press START/PAUSE button and no. 4 button at the same time during the course of the diagnostics cycle. The alarm is cancelled also when a new configuration is given to the main PCB. TSE-P 01.01 EB 48/56 599 34 55-61...

  • Page 49: Configuration Of The Main Pcb

    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.

  • Page 50: Configuration Codes

    CONFIGURATION CODE The configuration code (16 alphanumeric digits) shown on a label affixed to the casing of the main PCB and in the Service Notes 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.

  • Page 51: Examples Of Configuration

    EXAMPLES OF CONFIGURATION Configuration code A2A7808080E691F2 POSITION: ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ ↓ VALUE: TABLE OF CYCLE PHASE 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.

  • Page 52: Exiting The Diagnostics/Configuration System

    EXITING THE DIAGNOSTICS CYCLE To exit the diagnostics cycle, switch the appliance off, on, and then off again. TSE-P 01.01 EB 52/56 599 34 55-61...

  • Page 56: Notes For The Replacement Of The Control Display/Board

    NOTES FOR THE REPLACEMENT OF THE CONTROL DISPLAY/BOARD When replacing the control/display board, before fitting the new part, cut the 5 plastic hooks placed on the PCB casing (see figure). 56/56 TSE-P 01.01 EB 599 34 55-61...

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