Electrolux Washer Service Manual
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Electrolux Washer Service Manual

Washing machines & washer-dryers with ewm2000evo electronic control
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See also: Use and Care Manual , User Manual

SERVICE MANUAL

WASHING
WASHING MACHINES
&
WASHER-DRYERS
 ELECTROLUX HOME PRODUCTS
ITALY S.p.A.
with
Publication no.
Spares Operations Italy
EWM2000EVO
Corso Lino Zanussi, 30
Electronic control
I - 33080 PORCIA /PN
599 36 82-56
With sensors
Fax +39 0434 394096
EN
and
"AEG NEXXXT"
Edition: 2005-01-12
display board
Production ZP (Porcia-Italy)

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Summary of Contents for Electrolux Washer

  • Page 1: Service Manual

    SERVICE MANUAL WASHING WASHING MACHINES & WASHER-DRYERS  ELECTROLUX HOME PRODUCTS ITALY S.p.A. with Publication no. Spares Operations Italy EWM2000EVO Corso Lino Zanussi, 30 Electronic control I - 33080 PORCIA /PN 599 36 82-56 With sensors Fax +39 0434 394096 “AEG NEXXXT”...
  • Page 2 SOI/DT 2005-01dmm 2/65 599 36 82 56...

  • Page 3: Table Of Contents

    Delayed start time........................15 7.3.21 Disabling the buzzer ........................15 7.3.22 Electronic drying (WASHER-DRYERS – certain models only) ..........16 7.3.23 “Drying time” button ........................16 Variation of rinses when options are selected .................. 16 Display (certain models only)......................17 LEDs ..............................
  • Page 4 9.3.5 PWL_4 (hand wash) Delicate movement .................. 28 9.3.6 Cotton/Linen, Synthetics – C0 Intermediate Synthetics Prewash Spin........29 9.3.7 C1 Cotton/Linen Wash Spin ...................... 29 9.3.8 C1 Cotton/Linen Rinses Intermediate Spin ................29 9.3.9 COT_CF Cotton/Linen Final Spin....................29 9.3.10 SYN_CF Synthetics Intermediate and Final Spin..............
  • Page 5 15.3 Turbidity sensor..........................61 15.3.1 Installing the turbidity sensor ..................... 61 BASIC CIRCUIT DIAGRAM WD ......................62 16.1 Key for circuit diagram WD ......................63 BASIC CIRCUIT DIAGRAM WM......................64 17.1 Key for circuit diagram WM ......................65 SOI/DT 2005-01dmm 5/65 599 36 82 56...

  • Page 6: Purpose Of This Manual

    • Guide to the diagnostics For detailed information concerning hydraulic circuit, structural characteristics of the appliances and accessibility, please refer to Service Manual of washing machines and washer-dryers Series P6000/Nexus (publication no. 599 35 23-17). 2 PRECAUTIONS Electrical appliances must be serviced only by qualified Service Engineers.

  • Page 7: General Specifications Wm

    GENERAL SPECIFICATIONS WM Programme selector 24 positions with incorporated main switch Serial port DAAS-EAP communications protocol up to 38400 baud 220/240V Power supply 50/60 Hz Type of washing Jet-system Rinsing system Jet-system Motor Collector, with tachometric generator 850 ÷ 1600 g/’ Spin speed Anti-unbalancing system FUCS...

  • Page 8: Control Panel

    CONTROL PANEL The control panel may vary depending on: • type of control / display board • programme selector • design of front panel (the number of buttons and LEDs may vary) • configuration of buttons Example of WM control panel Buttons: maximum 8, positioned horizontally LEDs...

  • Page 9: Control/Display Board

    CONTROL/DISPLAY BOARD 5.1.1 Version with display 3 digits 26 LEDs: 24 red, one bicolour (red and green) 9 buttons Version without display: 26 LEDs: 24 red, one bicolour (red and green) 8 buttons SOI/DT 2005-01dmm 9/65 599 36 82 56...

  • Page 10: Washing Programmes

    Washing programmes 6.1.1 Configuration of programmes The table below lists the parameters that can be used to define the washing programmes. Cotton/linen, Synthetic fibres, Delicates, Wool, Hand wash, Mini Type of fabric Special programmes Soak, Rinses, Spin, Drain, Conditioner Normal, Maximum: initial and maximum temperatures that can be Temperature selected for a specific washing programme Spin...

  • Page 11: Wash Programmes And Options

    WASH PROGRAMMES AND OPTIONS 7.1 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 12: Options Of The Washing Cycle

    7.2 Options of the washing cycle 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. When the button is pressed, the corresponding LED lights; by pressing it again the LED switches off. Possible options according the selected programme OPZIONI 90°C...

  • Page 13: Description Of Options

    7.3 Description of options 7.3.1 Night cycle All the spin phases are eliminated. Three rinses are added to COTTON cycles and one rinse is added to SYNTHETICS cycles. The appliance is shut down with water in the drum before the final spin. No buzzer (if appliance is configured with a buzzer).

  • Page 14: Economy / Energy Label

    7.3.9 Economy / Energy label The COTTON 40°/50°/60°/90° - SYNTHETICS 50°/60° programmes are modified to reduce energy consumption The wash temperature in the 90°/60°/50° programmes is reduced; the temperature in the 40° programme is increased by 4°. The duration of the wash phase is increased 7.3.10 Sensitive One rinse is added to the COTTON –...

  • Page 15: Reduced Spin Speeds

    7.3.15 Reduced spin speeds The speed during all spin phases is lowered, as shown on the table: Maximum spin speed (RPM) 600 700 800 900 1000 1100 1200 1300 1400 1500 1600 Reduced speed for COTTON (RPM) 450 450 450 450 500 550 600 650 700 750 800 Reduced speed for OTHER CYCLES 450 450 450 450 450 450 450 450 450 450 450 (RPM)

  • Page 16: Electronic Drying (Washer-Dryers - Certain Models Only)

    7.3.22 Electronic drying (WASHER-DRYERS – certain models only) Three different degrees of drying can be selected for COTTON, and one for SYNTHETIC fabrics: Extra-dry (cotton only) Cupboard-dry (cotton and synthetics) Iron dry (cotton only) The appliance automatically calculates the drying time is selected using “fuzzy logic”.

  • Page 17: Display (Certain Models Only)

    7.5 Display (certain models only) The following information appears on the display: Three flashing dashes appear when the appliance is switched on The duration of the wash programme appears when the programme is selected. This value is the amount of time necessary for washing the maximum load of laundry for the type of programme selected. When the programme is started, the time counts down minute by minute.

  • Page 18: Washing Programmes

    WASHING PROGRAMMES 8.1 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...

  • Page 19: Rinses Of Cotton Programmes

    8.2 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 20: Cotton / Linen Programmes: 90 Eco, 40-60 "Energy Label" (Without Options)

    8.3 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 21: Rinses Of Cotton / Linen Programmes: 90 Eco, 40-60 "Energy Label" (Without Options)

    8.4 Rinses of Cotton / Linen programmes: 90 Eco, 40-60 “energy label” (without options) 8.4.1 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 22: Synthetics Programmes: Cold - 30 - 40 - 50 - 60° (Without Options)

    8.5 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 23: Rinses Of Synthetics Programmes

    8.6 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 24: Programmes For Delicate Fabrics: Cold - 30° - 40° (Without Options)

    8.7 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 25: Wool Programmes: Cold - 30° - 40

    8.8 Wool programmes: cold – 30° - 40° Recirc. Deterg. Motor Movement CYCLES 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 26: Hand Wash Programmes: Cold - 30° - 40

    8.9 Hand wash programmes: cold – 30° - 40° Recirc. Deterg. Motor movement CICLO 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 27: Drying Programmes

    Drying programmes Drying programme for cotton DRYING COTTON (full power) Drain Motor N.° PHASE Function Compart. Temperature Time Notes pump Movem. Pause Drain Level NO mov Water fill control Level (10.0) COND Only when Unrolling Time 10 min. autodrying is enabled Not for time- Cooling Temperature...

  • Page 28: Drum Movements At Low Speed And During Spin

    9.3 Drum movements at low speed and during spin 9.3.1 D55 Delicate movement g/’ 9.3.2 N55 Normal movement N 55 g/’ 9.3.3 E55 Vigorous movement E 55 g/’ 9.3.4 PWL_1 (wool) Delicate movement PWL_1 g/’ 9.3.5 PWL_4 (hand wash) Delicate movement PWL_4 g/’...

  • Page 29: Cotton/Linen, Synthetics - C0 Intermediate Synthetics Prewash Spin

    9.3.6 Cotton/Linen, Synthetics – C0 Intermediate Synthetics Prewash Spin C0 (Prewash) g/’ sec. FUCS FUCS FUCS 9.3.7 C1 Cotton/Linen Wash Spin C1 (wash) g/’ FUCS IMP 450 FUCS 1200 9.3.8 C1 Cotton/Linen Rinses Intermediate Spin C1 (intermediate) g/’ FUCS IMP 450 FUCS 1200 9.3.9...

  • Page 30: Del_ Cf Delicates Final Spin

    9.3.11 DEL_ CF Delicates Final Spin DF (final delicates) g/’ FUCS IMP 450 FUCS 1000 9.3.12 WOOL_CF Hand Wash and Wool Final Spin WF (final wool) g/’ FUCS IMP 450 FUCS 1000 9.3.13 Easy iron Impulse Cycle EI EASY_IRON_IMP g/’ FUCS FUCS FUCS...

  • Page 31: Control Of Water Level In Tub

    9.4 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 32: 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 33 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 34: 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 35: 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 36: 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 37: 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 38: 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 39: 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 40: Operating Principle Of Flow Meter

    (with consequent low water pressure). If this occurs, a warning will be displayed and the cycle will continue for five minutes, after which time an alarm will be signalled. The solenoid valve controlling residual condensed water operates during the drying phase on washer- dryers. The alarm is deactivated because the amount of water fill is very small.

  • Page 41: 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 42: 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 43: 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 44: 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 45: 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 46: 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 47 • 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 82-56 47/65...

  • Page 48: Drying Circuit

    DRYING CIRCUIT 1. Fan 2. Fan motor 3. Drying heater 4. Heater casing 5. Duct 6. Door seal 7. Tub 8. Tube from tub to condenser 9. Drying condenser 10. Coupling 11. Water fill solenoid 12. Condenser water intake and steam vent tube 13.

  • Page 49: Temperature Control

    11.1 Temperature control The drying temperature is controlled by an NTC sensor positioned on the duct. The heater casing features two safety thermostats (one of which is a manual-reset type). 1. Circuit board 2. Anti-boiling pressure switch AE1 3. Safety thermostat (auto-reset) 4.

  • Page 50: Demo Mode

    DEMO MODE A special demo cycle enables these appliances to be demonstrated in stores without the need for connection to the plumbing system. Any programme on the machine can be selected and, after the start button is pressed, the appliance performs certain phases in that programme (and not those that cannot be executed, such as water fill, draining and heating).

  • Page 51: Diagnostics Mode

    DIAGNOSTICS MODE 13.1 Accessing diagnostics mode Diagnostics mode, which can be accessed with a single procedure, allows the operator: To check the operation of components in the appliance To read / cancel alarms The diagnostic test cycles are available only if the main board can communicate properly with the display board and only if the appliance is configured correctly.
  • Page 52 Phases in the diagnostic test Parameters Selector position Components activated Operating conditions Function checked displayed (1) All the LEDs light up in sequence. When a button is pressed, the Operation of user corresponding LED lights up (and Always active Button coding interface the buzzer sounds, if programmed)

  • Page 53: Diagnostic Test Of Display Board And Leds

    13.3.1 Diagnostic test of display board and LEDs After accessing the diagnostics system, the display board is checked. All the LEDs and the display (if featured) light in sequence. When the buttons are pressed, the corresponding or nearby LED lights; the display shows the hexadecimal code corresponding to the code for the button pressed.

  • Page 54: Alarms

    ALARMS 14.1 Display of alarms to the user The alarm system is configured; that is, some or all of the alarms can be partially or totally displayed to the user, depending on the model involved. The following alarm families are displayed to the user: E10 –...

  • Page 55: Reading Alarms

    14.2 Reading alarms To read the last alarm stored in EEPROM on the main board: • Access diagnostics mode • Irrespective of the configuration of the circuit board and the type of selector, turn the programme selector clockwise to the tenth position. 14.2.1 Displaying an alarm Alarms are shown on the display (if installed) and by repeating sequences of...

  • Page 56: Behaviour Of Alarms During The Diagnostic Test

    14.2.3 Behaviour of alarms during the diagnostic test All alarms are operational during the diagnostic test on components. When the selector is turned to pass from one test phase to another, it exits any associated alarm condition and performs the next selected test (if the alarm does not recur).

  • Page 57: Table Of Alarm Codes

    14.6 Table of alarm codes Alarm Description Possible fault Action/machine status Reset Tap closed or water pressure too low; Drain tube improperly positioned; Water fill solenoid valve is defective; Leaks from water Poor water fill before wash cycle Cycle is paused with door locked Start circuit on pressure switch;...
  • Page 58 Alarm Description Possible fault Action/machine status Reset Cycle stops. Emergency drain Water fill solenoid valve is defective; Leaks from water circuit on procedure. Drain pump continues to Overflow pressure switch; Pressure switch defective; Wiring defective; Main OFF/reset operate (5 min. on, then 5 min. off, board defective.
  • Page 59 Alarm Description Possible fault Action/machine status Reset Fault in NTC sensor on drying duct (voltage out Drying NTC sensor (duct) defective; wiring defective; main circuit Heating is skipped Start of range = short-circuit, open circuit) board defective. NTC sensor for wash cycle improperly NTC sensor improperly positioned;...

  • Page 60: Accessing Components

    15 ACCESSING COMPONENTS Procedures for accessing specific components on the appliance are described in this section. For information on other procedures, see the general service manual for P6000 washing machines (599 35 23- The electrical components must be serviced by qualified personnel only Unplug the appliance before accessing internal components 15.1 Flow meter If the flow meter malfunctions, the entire...

  • Page 61: Turbidity Sensor

    15.3 Turbidity sensor Disconnect the connector. Loosen the clamps (shown by the arrows) and remove the tubes from the sensor unit. 15.3.1 Installing the turbidity sensor 1. Connection to recirculation pump. 2. End that is inserted into the bellows around the door. SOI/DT 2004-07 dmm 61/65 599 36 54-15...

  • Page 62: Basic Circuit Diagram Wd

    BASIC CIRCUIT DIAGRAM WD SOI/DT 2005-01 dmm 62/65 599 36 82-56...

  • Page 63: Key For Circuit Diagram Wd

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

  • Page 64: Basic Circuit Diagram Wm

    BASIC CIRCUIT DIAGRAM WM SOI/DT 2005-01 dmm 64/65 599 36 82-56...

  • Page 65: Key For Circuit Diagram Wm

    17.1 Key for circuit diagram WM Electrical components on appliance 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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