Electrolux WASHING MACHINES Service Manual
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Electrolux WASHING MACHINES Service Manual

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SERVICE MANUAL

WASHING
WASHING MACHINES
with
 ELECTROLUX HOME PRODUCTS
electronic control
ITALY S.p.A.
Publication no.
Spares Operations Italy
EWM2000EVO
Corso Lino Zanussi, 30
& sensors
I - 33080 PORCIA /PN
599 36 82-57
"SIGMA LCD"
Fax +39 0434 394096
EN
display board
Edition: 2005-01-12
Production ZP (Porcia-Italy)

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Summary of Contents for Electrolux WASHING MACHINES

  • Page 1: Service Manual

    SERVICE MANUAL WASHING WASHING MACHINES with  ELECTROLUX HOME PRODUCTS electronic control ITALY S.p.A. Publication no. Spares Operations Italy EWM2000EVO Corso Lino Zanussi, 30 & sensors I - 33080 PORCIA /PN 599 36 82-57 “SIGMA LCD” Fax +39 0434 394096...
  • Page 2 SOI/DT 2005-01 dmm 2/67 599 36 82-57...

  • Page 3: Table Of Contents

    TABLE OF CONTENTS Purpose of this manual ..........................5 PRECAUTIONS ............................5 GENERAL SPECIFICATIONS........................5 CONTROL PANEL WITH LCD ........................6 CONTROL/DISPLAY BOARD WITH LCD ....................6 LCD ................................7 DESCRIPTION OF THE OPERATION WITH LCD ................... 8 Set up options ........................... 12 Washing programmes..........................
  • Page 4 9.15.13 Easy iron Impulse Cycle EI ....................33 9.15.14 Intermediate Spin for Cotton/Linen CSR with Super-rinse option ......... 33 9.16 Control of water level in tub......................34 TECHNICAL CHARACTERISTICS ...................... 35 10.1 EWM2000EVO Electronic control ....................35 10.1.1 Functions of the circuit board ....................35 10.1.2 Memory in the control system....................

  • Page 5: Purpose Of This Manual

    1 Purpose of this manual The purpose of this manual is to provide service engineers who are already familiar with the repair procedures for traditional washing machines with information regarding appliances fitted with the EWM2000 EVO electronic control system and produced in Porcia (Italy).

  • Page 6: Control Panel With Lcd

    4 CONTROL PANEL WITH LCD ON/OFF Switch: incorporated in the programme selector Version with left selector and incorporated ON/OFF switch 5 CONTROL/DISPLAY BOARD WITH LCD With left selector and incorporated ON/OFF switch 6 in line buttons 1 led SOI/DT 2005-01 dmm 6/67 599 36 82-57...

  • Page 7: Lcd

    6 LCD Some models feature a new way to display the programmes, the programme temperature, the spin speed and the various options; therefore a new LCD display has been used which shows all the alphabet letters, numbers and symbols. The picture above represents the LCD display with all the activated components. See below the representation and description of each line.

  • Page 8: Description Of The Operation With Lcd

    7 DESCRIPTION OF THE OPERATION WITH LCD 1 – Programme selector 5 – Option button 2 – LCD Display 6 – Option selection 3 – Temperature button 7 – Option exit 4 – Spin speed 8 – Start/Pause LANGUAGE CHOICE After rotating the selector knob (the language choice appears when the appliance is switched on for the first time or after entering the DIAGNOSTICS):...
  • Page 9 OPTION BUTTON Pressing button 3, sequentially it is possible to select the options. The selection is highlighted by the flashing of the symbol. BUTTON CHANGE To confirm the option press button 4, under the symbol appears a hyphen which indicates the selection. (To select other options repeat the same operations with the button 3 OPTIONS and confirm with button 4 CHANGE)
  • Page 10 PREWASH Two options: NO / YES After selecting the option with button 3 modify the option with button 4 STAINS Two options: NO / YES After selecting the option with button 3 modify the option with button 4 EASY IRON Two options: NO / YES After selecting the option with button 3 modify the option...
  • Page 11 EXIT BUTTON After selecting the programme temperature/the spin speed/the options, press button 5 to exit and return to the display of the programme. The display now shows: CHOSEN PROGRAMME TEMPERATURE – SPIN – OPTIONS selected Up right the day time and under the time at which the washing programme stops.

  • Page 12: Set Up Options

    7.1 Set up options Setup With button 3 select the Menu symbol, confirm with button 4. Press button 3, the following information appear sequentially: Memory 1 Memory 2 Sound Rinses + Language Time regulation Contrast of the LCD display Brightness of LCD display To modify the selected choice press button 4.
  • Page 13 CLOCK Press button 3, when CLOCK appears Press button 4 Holding down this button the time advances by 10 minutes, pushing it sequentially the time advances by 1 minute Press button 3 to skip to another option Or to exit from the Menu press button 5 twice NOTE: If the appliance is switched off (plug not inserted in the socket) the time is kept for some days CONTRAST...

  • Page 14: Washing Programmes

    8 Washing programmes 8.1.1 Configuration of the programmes The table below lists the parameters that can be used to define the washing programmes. Cotton/linen, Synthetics, Delicates, Wool, Hand-wash, Mini Types of fabrics Special programmes Soak, Rinses, Spin, Drain, Conditioner Normal, Maximum: the initial temperature is the maximum that Temperature can be selected for a specific washing programme Spin...

  • Page 15: Washing Programmes And Options

    WASHING PROGRAMMES AND OPTIONS 9.1 Possible programmes The wash programmes can be configured to suit personal needs. The table below lists the standard programmes: Programme No. of rinses Final spin (RPM) Temperature (°C) 57 (*)(**) 450/650/850/1000/1200/ Cotton 1300/1400/1600 50/40E 44 (*) cold 60/50E 42 (*)

  • Page 16: Options Of The Washing Cycle With A Lcd Display Board

    9.2 Options of the washing cycle with a LCD display board The selection of the options is to be carried out after switching on the appliance and setting the desired programme with the selector and before pressing the start/pause button. Possible options according the selected programme.

  • Page 17: Description Of Options

    9.3 Description of options 9.3.1 Night cycle Eliminates all spin phases and adds three rinses in COTTON cycles and one rinse in SYNTHETICS cycles. Stops the appliance with water in the tub before the final rinse. Switches off the buzzer (if configured) To drain the water select a drain or spin cycle.

  • Page 18: Economy / Energy Label

    9.3.9 Economy / Energy label Modifies the structure of the COTTON 40°/50°/60°/90° - SYNTHETIC FABRICS 50°/60° programmes in order to reduce energy consumption. Reduces the washing temperature in 90°/60°/50° programmes, while for the 40° programme the temperature is increased by 4°. Increases the duration of the wash phase.

  • Page 19: Spin Speed Adjustment

    9.3.17 Spin speed adjustment The speed of all spin phases in the cycle is lowered The last selected position can be used for no spin and stop with water in the drum No spin adds three rinses to the COTTON cycle and one rinse to the SYNTHETICS cycle. 9.3.18 Time reduction (Quick) Modifies the structure of the COTTON - SYNTHETICS–...

  • Page 20: Modification Of Rinses According To The Options Selected

    Modification of rinses according to the options selected Number of rinses for the options Very short Short COTTON Normal Very short SYNTHETIC FABRICS Normal Very short DELICATES Normal WOOL Normal HAND-WASH Normal SILK Normal N.B.: The option HALF LOAD, reduces of one rinse all the programmes COTTON, except for the programme VERY SHORT.

  • Page 21: Base Programmes For Cotton / Linen: Cold-30-40-60-90° (Without Options)

    9.5 Base programmes for Cotton / Linen: cold-30-40-60-90° (without options) Drain Recirc. Deterg Motor Movement CYCLE N.° Phase Description pump pump Dispens. Movem. Pause 90° 60°/60° 40° 30° Calibration Level No mov. DRAIN Flow Calibration Level No mov. WATER FILL Water softener Maintenance Time 1 min.

  • Page 22: Rinses Of Cotton Programmes

    9.6 Rinses of Cotton programmes Drain Recirc. Deterg. Motor movement CYCLE N.° PHASE Description pump Pump Disp Movem. Pause Water fill Level NO mov COT_FIRST_N_R_LEV 5 min. Maintenance & Refill Time ON (35/15) COT_REF_N_R_LEV Turbidity measurement Time NO mov 6 sec. Drain Time NO mov...

  • Page 23: Cotton / Linen Programmes: 90 Eco, 40-60 "Energy Label" (Without Options)

    9.7 Cotton / Linen programmes: 90 Eco, 40-60 “energy label” (without options) Recirc. Deterg. Motor movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Calibration Level NO mov DRAIN Flow calibration Level NO mov WATER FILL Maintenance water softener Time 1 min.

  • Page 24: Rinses Of Cotton / Linen Programmes: 90 Eco, 40-60 "Energy Label" (Without Options)

    9.8 Rinses of Cotton / Linen programmes: 90 Eco, 40-60 “energy label” (without options) 9.8.1 For programmes with two rinses Recirc. Deterg. Motor Movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Water fill Level NO mov COT_FIRST_E_R_LEV 5 min.

  • Page 25: Synthetics Programmes: Cold - 30 - 40 - 50 - 60° (Without Options)

    9.9 Synthetics programmes: cold – 30 – 40 – 50 – 60° (without options) Recirc. Deterg. Motor Movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Calibration Level NO mov Drain Flow calibration Level NO mov Water fill Maintenance water softener Time 1 min.

  • Page 26: Rinses Of Synthetics Programmes

    9.10 Rinses of synthetics programmes Recirc. Deterg. Motor Movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Water fill Level NO mov SYN_FIRST_R_LEV Wait Time NO mov 6 sec. 3 min. Maintenance & Refill Time ON (60/20) SYN_REF_R_LEV Drain Time NO mov...

  • Page 27: Programmes For Delicate Fabrics: Cold - 30° - 40° (Without Options)

    9.11 Programmes for delicate fabrics: cold – 30° - 40° (without options) Recirc. Deterg. Motor Movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Calibration Level NO mov Drain Flow calibration Level NO mov Water fill Maintenance water softener Time 1 min.

  • Page 28: Wool Programmes: Cold - 30° - 40

    9.12 Wool programmes: cold – 30° - 40° Recirc. Deterg. Motor Movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Calibration Level NO mov Drain Water fill Level NO mov SOFT_LEV Maintenance & Refill Time 1 min. Water fill Level NO mov WOOL_FIRST_W_LEV...

  • Page 29: Hand Wash Programmes: Cold - 30° - 40

    9.13 Hand wash programmes: cold – 30° - 40° Recirc. Deterg. Motor movement CYCLE N.° PHASE Description Drain pump Pump Disp Movem. Pause Calibration Level NO mov Drain Water fill Level NO mov SOFT_LEV Maintenance & Refill Time 1 min. Water fill Level NO mov...

  • Page 30: Automatik Wash Programme With Flow Meter: 40° (Without Options)

    9.14 Automatic wash programme with flow meter: 40° (without options) Drain Recirculation Deterg. Motor operation CYCLE PHASE Function Pump Pump Disp. Movem. Pause 40° Maintain water softener Time 1 min. Water fill Level No movement COT_FIRST_PW_LEV 4 min. Maintain & Top up level Time ON (35/15) COT_SEC_PW_LEV...

  • Page 31: Drum Movements At Low Speed And During Spin

    9.15 Drum movements at low speed and during spin 9.15.1 D55 Delicate movement 9.15.2 N55 Normal movement N 55 9.15.3 E55 Vigorous movement E 55 9.15.4 PWL_1 (wool) Delicate movement PWL_1 9.15.5 PWL_4 (hand wash) Delicate movement PWL_4 g/’ SOI/DT 2005-01 dmm 599 36 82-57 31/67...

  • Page 32: Cotton/Linen, Synthetics - C0 Intermediate Synthetics Prewash Spin

    9.15.6 Cotton/Linen, Synthetics – C0 Intermediate Synthetics Prewash Spin C0 (Prewash) sec. FUCS FUCS FUCS 9.15.7 C1 Cotton/Linen Wash Spin C1 (wash) FUCS FUCS imp FUCS 9.15.8 C2 Cotton/Linen Intermediate Spin C2 (intermediate) FUCS FUCS imp FUCS 1000 9.15.9 COT_CF Cotton/Linen Final Spin COT_CF (cotton final) FUCS FUCS imp...

  • Page 33: Del_ Cf Delicates Final Spin

    9.15.11 DEL_ CF Delicates Final Spin CF (delicates final) FUCS FUCS imp FUCS 9.15.12 WOOL_CF Hand Wash and Wool Final Spin CF (wool final) FUCS FUCS imp FUCS 1000 9.15.13 Easy iron Impulse Cycle EI EASY_IRON_IMP FUCS FUCS FUCS FUCS 9.15.14 Intermediate Spin for Cotton/Linen CSR with Super-rinse option FUCS FUCS imp...

  • Page 34: Control Of Water Level In Tub

    9.16 Control of water level in tub The water fill is carried out in three ways: level fill: is controlled by the electronic pressure switch level time fill: the duration is calculated by the electronic to fill the set quantity level fill and time fill combined The different levels are determined by the model configuration and depend on the type of tub used.

  • Page 35: Technical Characteristics

    10 TECHNICAL CHARACTERISTICS 10.1 EWM2000EVO Electronic control The EWM2000 EVO electronic control consists of a main PCB (1) and a control/display board (2). 10.1.1 Functions of the circuit board PROGRAMM DISPLAY BOARD µP Buzzer SELECTOR Display LEDs Buttons ELECTRICAL µP SENSORS LOADS MAIN CIRCUIT BOARD...
  • Page 36 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. The ROM is set up by the manufacturer of the microprocessor, and cannot be modified.

  • Page 37: Analogic Pressure Switch (Electronic)

    10.2 Analogic pressure switch (electronic) The electronic pressure switch is an analogic 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 38: Pressure Switch

    10.3 Pressure switch Control of the water level is performed by a two or three-level pressure switch which functions as follows: • contact 11-14: anti-boiling safety level • contact 21-24: anti-boiling safety level • contact 31-32: anti-overflow safety level (not all models) 10.3.1 Pressure switch settings Full (mm)

  • Page 39: Anti-Flooding Device

    10.5 Anti-flooding device 1. PCB 8. Drain pump 9. Anti-overflow pressure switch HV1_S Anti-overflow level sensor The third pressure switch level (if featured) is used as an anti-overflow safety device: if the pressure switch contact should open in the FULL position, the PCB actions the drain pump until the pressure switch returns to the EMPTY position.

  • Page 40: Door Interlock

    10.7 Door interlock There are two types of door interlock: • voltmetric with PTC: it is always necessary to wait from 1 to 3 minutes before opening the door. • instantaneous: the door can be opened as soon as the cycle ends. 10.7.1 Voltmetric interlock with PTC 1.

  • Page 41: Instantaneous Door Interlock

    10.7.2 Instantaneous door interlock 1. Suppressor 2. Main switch (button or programme selector) 3. Door interlock 4. Main PCB 5. Door pilot lamp off • Operating principle When the appliance is switched on, the ON/OFF switch closes and the bi-metal PTC (contact 4-2) is powered;...

  • Page 42: Water Fill System

    10.8 Water fill system The solenoid valves are powered by the main board through two or three triacs. The state of the pressure switch (full-empty) is detected over two sensing lines. 1. Main board 2. Anti-boiling level switch AE2 3. Anti-boiling level switch AE1 4.

  • Page 43: Operating Principle Of Flow Meter

    10.8.2 Operating principle of flow meter The main components of the flow sensor are: Contact closed Contact open 1. Turbine (with magnet and counterweight mounted on the outside) Reed switch (normally open) Magnet Counterweight Signal 0 Signal 1 Water entering the solenoid valve rotates the turbine (1) and magnet (3), which passes in front of the reed switch (2), thus closing it.

  • Page 44: Drain Pump

    10.9 Drain pump 1. PCB 2. Anti-boiling pressure switch 3. Anti-boiling pressure switch 4. Drain pump The PCB powers the drain pump via a triac as follows: for a pre-determined period. until the anti-boiling pressure switch closes on EMPTY, after which the pump is actioned for a brief period or passes to the subsequent phase.

  • Page 45: Aqua Control

    10.11 Aqua Control The Aqua Control system is a sensor located in contact with the base frame. The sensor detects water leaks inside the machine (not only during normal operation, but also when the unit is off and plugged in) and starts the drain pump if a leak occurs.

  • Page 46: Heating System

    10.12 Heating system 1. Main board 2. Anti-boiling pressure switch AE2 3. Anti-boiling pressure switch AE1 4. Heating element 5. NTC temperature sensor The heating element is powered by a relay on the main board through the contacts on the pressure switches, which must be closed on “full”.

  • Page 47: Turbidity Sensor

    10.13 Turbidity sensor This sensor is installed only on machines equipped with a recirculation pump. 1. Housing 2. Electronic circuit 3. Transparent tube The sensor consists of a transparent tube installed in the water circulation circuit. A diode (4) on the side of the tube emits infrared rays (at a frequency of 2.3 KHz, as generated by the electronic circuit) and a phototransistor (5) on the other side of the tube is hit by the rays.

  • Page 48: Motor

    10.14 Motor 1. PCB 2. Motor 3. Anti-boiling pressure switch AE1 4. Anti-boiling pressure switch AE2 M = rotor P = motor safety cut-out S = stator T = tachometric generator 10.15 Power supply to motor The PCB powers the motor via a triac. The direction of rotation is reversed by switching of the contacts on the two relays (K2-K3), which modify the connection between the rotor and the stator.

  • Page 49: Fucs" (Fast Unbalance Control System)

    10.17 “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.
  • Page 50 • Balancing in the available longer interval Phase Unbalancing index Time-out (sec) • Unbalancing after all phases In this case the spin (or impulse) is not performed. SOI/DT 2005-01 dmm 599 36 82-57 50/67...

  • Page 51: Demo Mode

    11 DEMO Mode A special cycle has been created for demonstration of the operation of these appliances in retail outlets without connecting the appliance to the water supply. In this way, the salesman can select any programme; after starting the cycle by pressing START, the appliance will perform certain phases only, and will skip those which cannot be performed (water fill, drain, heating).

  • Page 52: Diagnostics System

    12 DIAGNOSTICS SYSTEM 12.1 Access to diagnostics system Using a single procedure, it is possible to access to the diagnostics system. After accessing this function, the following operations can be performed: control of the operation of each of the components in the appliance read / cancel the alarms The diagnostics cycles are available only if the communication between the main PCB and the display board is correct;...
  • Page 53 Diagnostics phases Displayed Selector position Components actioned Operating conditions Function checked parameters All the LEDs light in sequence. When a button is Operation of the Button pressed, the corresponding Always activated user interface codification LED lights (and the buzzer, if featured, sounds) Door locked Water level below...

  • Page 54: Diagnostics Of Lcd Display Board

    12.3.1 Diagnostics of LCD display board After entering the diagnostics system, the display board is checked: all the symbols of the LCD display light in sequence. Pressing button 1: The two lines which consist of seventeenth cells are controlled. The characters of each cell light like a chessboard (one in two).

  • Page 55: Programme Selector

    12.3.1 Programme selector In the table are indicated the closures between the contact C6 (common) and the other contacts (C1−C5) of the programme selector in the different positions and the corresponding codification. The code is displayed only in the appliances with display and LCD. Closure of selector contacts Selector position (C6 is the common)

  • Page 56: Alarms

    13 ALARMS 13.1 Displaying the alarms to the user Control of the alarm system can be configured; according to the model, therefore, some or all of the alarms may be displayed to the user. The following alarm families are displayed to the user: Door not Closed Please check No incoming water...

  • Page 57: Rapid Reading Of Alarm Codes With Lcd

    13.3 Rapid reading of alarm codes with LCD The last alarm code can be displayed even if the programme selector is not in the tenth position (diagnostics) or if the appliance is in normal operating mode (e.g. during the execution of the washing programme): Five minutes after the switching on, press and hold down the START/PAUSE and EXIT buttons for 2 seconds, the LCD displaying shows the last alarm codes (of the main board and display board).

  • Page 58: Table Of Alarm Codes Of The Main Electronic Board

    13.5 Table of alarm codes of the main electronic board Alarm Description Possible fault Action/machine status Reset Tap closed or mains pressure insufficient; drain hose incorrectly Difficulties in water fill for washing positioned; water fill solenoid faulty; leaks from the hydraulic circuit of Cycle paused with door closed.
  • Page 59 Alarm Description Possible fault Action/machine status Reset “HV” sensor of anti-overflow level faulty PCB faulty. Cycle blocked, door locked. OFF/reset Heating elem. relay sensing faulty PCB faulty. Cycle blocked, door locked OFF/reset Door interlock faulty; wiring faulty; Door open Cycle paused Start PCB faulty.

  • Page 60: Table Of Alarm Codes Of The Lcd Display Board

    Alarm Description Possible fault Action/machine status Reset Communication incongruence between main Wrong control/display board; PCB- display board Cycle interrupted Wrong PCB (do not correspond to the model). (versions not compatible) Incorrect configuration of appliance Incorrect configuration data; PCB faulty. Cycle interrupted OFF/reset Incorrect configuration of washing cycle Incorrect configuration data;...

  • Page 61: Operating Time Counter

    14 OPERATING TIME COUNTER It is possible to display, with a specific procedure, the operating time of the appliance, which is counted from the first switching on. This option is available only in models with display. The maximum memorization capacity is 6550 operating hours.

  • Page 62: Accessibility

    15 ACCESSIBILITY Please find below the operations relative to the access to the specific components of this appliance. As regards the other operations, please refer to the Service Manual of the P6000 series washing machines (599 35 23-17) 15.1 Control panel with LCD displaying Remove the work top.
  • Page 63 Removing the LCD display board Release the connectors from the board. Remove the five screws which fasten the LCD display board to the control panel. Replacing the programme selector Remove the two screws which fasten the selector support to the control crosspiece. Press the hook and remove it from its seat.

  • Page 64: Flow Meter

    Place the control panel where it was before paying attention that the wiring is positioned correctly. m) Fasten all screws removed previously. Set the knob. 15.2 Flow meter If the flow meter malfunctions, the entire solenoid valve assembly must be replaced. 15.3 Aqua Control Disconnect the connector Insert a screwdriver into the holes indicated by the arrows...

  • Page 65: Turbidity Sensor

    15.4 Turbidity sensor Disconnect the connector. Loosen the clamps (shown by the arrows) and remove the tubes from the sensor unit. 15.4.1 Installing the turbidity sensor 1. Connection to recirculation pump. 2. End that is inserted into the bellows around the door. SOI/DT 2005-01 dmm 65/67 599 36 82-57...

  • Page 66: Basic Circuit Diagram With Sensors

    16 BASIC CIRCUIT DIAGRAM WITH SENSORS SOI/DT 2005-01 dmm 66/67 599 36 82-57...

  • Page 67: Key For Circuit Diagram

    16.1 Key for circuit diagram Electric components Components on main board 1. Main board 2. Interference filter BEL_TY Bleach solenoid Triac 3. Drain pump DOOR_TY Door interlock Triac 4. Aqua control DRAIN_TY Drain pump Triac 5. ON/OFF switch (built into selector) REC_TY Recirculation pump Triac 6.

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