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Electrolux washing machine Service Manual
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Electrolux washing machine Service Manual

Washing machines with ewm 1000 plus electronic control system and “full smd” display board with sensor
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See also: Service Manual , User Manual
This Manual updates and replaces Service Manual 599 35 93-18
 ELECTROLUX HOME PRODUCTS
ITALY S.p.A.
Spares Operations Italy
Corso Lino Zanussi, 30
I - 33080 PORCIA /PN
Fax +39 0434 394096
Edition: 2005-01-27
SOI/DT 2005-01 dmm
Publication no.
599 36 86-11
EN
1

SERVICE MANUAL

Washing machines with
EWM 1000 PLUS
electronic control system
and
"Full SMD" display board
With sensor
Production ZP (Porcia-Italy)
WASHING
599 36 86 11

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Summary of Contents for Electrolux washing machine

  • Page 1: Service Manual

    SERVICE MANUAL WASHING This Manual updates and replaces Service Manual 599 35 93-18 Washing machines with EWM 1000 PLUS electronic control system  ELECTROLUX HOME PRODUCTS “Full SMD” display board ITALY S.p.A. Publication no. Spares Operations Italy Corso Lino Zanussi, 30...
  • Page 2 SOI/DT 2005-01 dmm 599 36 86 11...

  • Page 3: Table Of Contents

    CONTENTS Purpose of this manual ..........................5 PRECAUTIONS ............................5 GENERAL CHARACTERISTICS....................... 5 CONTROL PANEL............................. 6 Control/display board.......................... 7 4.1.1 Version with display........................7 4.1.2 Versions without display ......................7 Washing programmes......................... 8 4.2.1 Configuration of the programmes....................8 Programme selector ........................... 8 Start/Pause ............................
  • Page 4 TECHNICAL CHARACTERISTICS......................24 EWM1000 Plus Electronic control ....................24 7.1.1 Functions of the circuit board ....................24 7.1.2 Memory in the control system....................24 Power supply and programme selection ..................25 Door interlock............................ 25 7.3.1 Voltmetric interlock with PTC..................... 25 7.3.2 Instantaneous door interlock .....................

  • 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 EWM 1000 plus electronic control system and produced in Porcia (Italy). The electronic control system plus EWM1000 plus consists of a main electronic board and one control/display board, “Full SMD”...

  • Page 6: Control Panel

    4 CONTROL PANEL The configuration of the control panel depends on the following: Type of control/display board (with or without display) Design of the control panel and position of the programme selector (right or left of the buttons) Number and configuration of the buttons (max. 8) ON/OFF switch: incorporated in the programme selector or with separated button Version with left selector and incorporated ON/OFF button Version with left selector and button ON/OFF switch...

  • Page 7: Control/Display Board

    4.1 Control/display board 4.1.1 Version with display 3 digits 28 LEDs 8 buttons 4.1.2 Versions without display 21 LEDs 6 buttons ⇒ 14 LEDs ⇒ 6 buttons SOI/DT 2005-01 dmm 599 36 86 11...

  • Page 8: Washing Programmes

    4.2 Washing programmes 4.2.1 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 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 9: Washing Programmes And Options

    5 WASHING PROGRAMMES AND OPTIONS 5.1 Programmes The washing programmes can be configured. The basic programmes are listed in the table below. Programme Temperature (°C) Number of rinses Final spin (rpm) 50 (*)(**) 450/650/850/1000/1200/ Cotton 1300/1400/1600 50/40E 44 (*) cold 60/50E 42 (*) Synthetic...
  • Page 10 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 OPTIONS 90°C...

  • Page 11: Description Of Options

    5.2 Description of options 5.2.1 Night cycle Eliminates all spin phases and adds three rinses in COTTON cycles and two rinses 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 12: Sensitive

    5.2.9 Sensitive Adds a rinse in the COTTON – SYNTHETIC FABRICS. During the cotton cycles the movements pass from vigorous to normal. Eliminates the intermediate spins except from the last two which are reduced. 5.2.10 Extra rinse Adds two rinses in the COTTON, SYNTHETICS and DELICATES cycles. Eliminates the intermediate spin cycles, with the exception of the last rinse, which is reduced to 450 rpm.

  • Page 13: Time Reduction (Quick)

    5.2.17 Time reduction (Quick) Modifies the structure of the COTTON - SYNTHETICS– DELICATES programmes to obtain washing time very short (optimization for small or lightly-soiled loads). Reduces the no. of rinses (one rinse less). Increases the water level of the other two rinses. Corresponds to the SHORT- VERY SHORT cycles on the basis of the configuration of the appliance.

  • Page 14: Display (Some Models)

    5.4 Display (some models) The display shows the following information: three flashing digits, when the appliance is switched on. the duration of the washing programme, which appears after selecting it. This time corresponds to that necessary for the maximum load for every type of programme. After starting the programme, the time diminishes (and updates) by every minute.

  • Page 15: Washing Programmes

    6 WASHING PROGRAMMES 6.1 Base programmes for Cotton / Linen: cold-30-40-60-90° (without options) Time/ Heat. Phase Function Movement Notes °C control Delay Delayed start Delay time No Mov VAE + 2”+ Drain No mov 6” pause Water fill P1 + QPW1 (*) D55 from full Cold wash 5’...

  • Page 16: Cotton / Linen Cycles: 90 Eco, 60 - 40/50 "Energy Label" (Without Options)

    6.2 Cotton / Linen Cycles: 90 Eco, 60 - 40/50 “energy label” (without options) Heat. Time/ Phase Function Movement Notes °C Control Delay Delayed start Delay time No Mov VAE + 2”+ Drain No Mov 6” pause Water fill P1 + QPW1 (*) D55 from full Cold wash 5’...

  • Page 17: Base Programmes For Synthetics Cycles: Cold - 30- 40 - 50 - 60° (Without Options)

    6.3 Base programmes for Synthetics Cycles: cold - 30- 40 – 50 - 60° (without options) Time/ Heat. Phase Function Movement Notes °C control Delay Delayed start Delay time No Mov VAE + 2”+ Drain No mov 6” pause Water fill P1 + QPW1 (*) D 55 from full Cold wash...

  • Page 18: Delicates Cycles: Cold - 30° - 40° (Without Options)

    6.4 Delicates Cycles: cold – 30° - 40° (without options) Time/ Heat. Phase Function Movement Notes °C control Delay Delayed start Delay time No Mov VAE + 2”+ Drain No mov 6” pause Water fill P1 + QPW1 (*) D55 from full Cold wash 5’...

  • Page 19: Wool Cycles: Cold - 30° - 40

    6.5 Wool Cycles: cold - 30° - 40° Time/ Heat. Phase Function Movement Notes °C control Delay Delayed start Delay time No Mov VAE + 2”+ Drain No mov 6” pause Wool water fill P1 + Qwo (*) Cold wash 1’...

  • Page 20: Drum Movements At Low Speed And During Spin

    6.7 Drum movements at low speed and during spin 6.7.1 D55 Delicate movement 6.7.2 N55 Normal movement N 55 6.7.3 E55 Vigorous movement E 55 6.7.4 PWL_1 (wool) Delicate movement PWL_1 6.7.5 PWL_4 (hand wash) Delicate movement PWL_4 SOI/DT 2005-01 dmm 599 36 86 11...

  • Page 21: Cotton/Linen, Synthetics - C0 Intermediate Synthetics Prewash Spin

    6.7.6 Cotton/Linen, Synthetics – C0 Intermediate Synthetics Prewash Spin C0 (Prewash) sec. FUCS FUCS FUCS 6.7.7 C1 Cotton/Linen Wash Spin C1 (wash) FUCS FUCS imp FUCS 6.7.8 C2 Cotton/Linen Intermediate Spin C2 (intermediate) FUCS FUCS imp FUCS 1000 6.7.9 COT_CF Cotton/Linen Final Spin COT_CF (cotton final) FUCS FUCS imp...

  • Page 22: Del_ Cf Delicates Final Spin

    6.7.11 DEL_ CF Delicates Final Spin CF (delicates final) FUCS FUCS imp FUCS 6.7.12 WOOL_CF Hand Wash and Wool Final Spin CF (wool final) FUCS FUCS imp FUCS 1000 6.7.13 Easy iron Impulse Cycle EASY_IRON_IMP FUCS FUCS FUCS FUCS 6.7.14 Intermediate Spin for Cotton/Linen CSR with Super-rinse option FUCS FUCS imp FUCS...

  • Page 23: Control Of Water Level In Tub

    6.8 Control of water level in tub The water fill is carried out in two phases: • level fill: is controlled by the closure of 1 level pressure switch in full position • time fill: the duration is calculated by the electronic to fill the set quantity. The different levels are determined by the model configuration and depend on the type of tub used.

  • Page 24: Technical Characteristics

    7 TECHNICAL CHARACTERISTICS 7.1 EWM1000 Plus Electronic control The EWM1000 Plus electronic control consists of a main PCB (1) and a control/display board (2). 7.1.1 Functions of the circuit board PROGRAMM DISPLAY BOARD µP Buzzer SELECTOR LEDs Buttons Display ELECTRICAL µP SENSORS LOADS...

  • Page 25: Power Supply And Programme Selection

    7.2 Power supply and programme selection The main board (3) is powered by the interference suppressor (1) and by the closure of the contacts of the main switch (2). The affected connectors are J6-2 (neutral) and J10-1 (line). The control/display board (4) is powered at 5V by the main board: through the programme selector (5) it is possible to select the programme.

  • Page 26: Instantaneous Door Interlock

    7.3.2 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 27: Control Pressure Switch For Water Level In The Tub

    7.4 Control pressure switch for water level in the tub 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: first level • contact 31-32: anti-overflow safety level (not all models) 7.4.1 Pressure switch settings...

  • Page 28: Water Fill System

    7.6 Water fill system The solenoid valves are powered by the PCB via two or three triacs. The status of the pressure switch (empty/full) is detected by two “sensing” lines”. Anti-boiling level 1st level Pre-wash solenoid 5. Wash solenoid 6. Bleach solenoid (some models) 7.

  • Page 29: Drain Pump

    7.7 Drain pump 1. PCB 2. Anti-boiling pressure switch 8. Drain pump AB_S Anti-boiling level sensor 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 30: Water Control

    Water Control The Water 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 31: Heating

    7.10 Heating Anti-boiling pressure switch 1st level pressure switch Heating element NTC temperature sensor Relay AB_S Anti-boiling level sensor L1_S 1st level sensor The heating element is powered by a relay on the PCB via the contacts of the pressure switch when closed on FULL.

  • Page 32: Motor

    7.11 Motor 1. PCB 2. Motor 3. Anti-boiling/anti-foam pressure switch M = rotor P = motor safety cut-out S = stator T = tachometric generator AB_S Anti-boiling/anti- foam level sensor 7.12 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 33: Fucs" (Fast Unbalance Control System)

    7.14 “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 34 • 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 86 11...

  • Page 35: Demo Mode

    8 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 36: Diagnostics System

    9 DIAGNOSTICS SYSTEM 9.1 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 37 Diagnostics phases Displayed Selector position Components actioned Operating conditions Function checked parameters (1) 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 38: Display Board Diagnostics

    9.3.1 Display board diagnostics After entering the diagnostics system, the display board is checked: all LEDs and the display light in sequence (if featured). Pressing all buttons, the corresponding LEDs switch on or those closer; the display shows the hexadecimal code corresponding to the button codification.

  • Page 39: Programme Selector

    9.3.2 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. Closure of selector contacts Display Selector position...

  • Page 40: Alarms

    10 ALARMS 10.1 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. Normally all the alarms are displayed to the user except for: E61 (insufficient heating during the washing phase), E83 (error in the reading of the selector) The alarms are active during the execution of the washing programme;...

  • Page 41: Reading The Alarm Codes

    10.2 Reading the alarm codes In order to read the last alarm code memorized in the EEPROM on the PCB: • Enter diagnostics mode • Irrespective of the type of PCB and configuration, turn the programme selector clockwise to the tenth position. 10.2.1 Displaying the alarm The alarm is displayed by a repeated flashing sequence of the two LEDs (0.4 seconds lit, 0.4 seconds off, with an interval of 2.5 seconds between...

  • Page 42: Operation Of Alarms During Diagnostics

    10.2.3 Operation of alarms during diagnostics All alarms are enabled during the components diagnostics phase. Moving the selector to pass from one control phase to the other, the appliance exits the alarm condition and performs the selected phase (if the alarm does not occur again).

  • Page 43: Table Of Alarm Codes

    10.6 Table of alarm codes 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 Start the pressure switch;...
  • Page 44 Alarm Description Possible fault Action/machine status Reset Safety drain cycle – Cycle stopped Overheating during washing NTC sensor faulty; heating element faulty; wiring faulty; PCB faulty. with door open Safety drain cycle – Cycle stopped Heating element power relay faulty PCB faulty;...

  • Page 45: Operating Time Counter

    11 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 46: Basic Circuit Diagram

    12 BASIC CIRCUIT DIAGRAM 12.1 Diagram (without aqua control) SOI/DT 2005 01 dmm 46/49 599 36 86 11...

  • Page 47: Key To Circuit Diagram

    12.1.1 Key to circuit diagram Components in the appliance Components of the PCB 1. Electronic board 2. Suppressor BELV_TY Bleach solenoid Triac 3. ON/OFF switch DOOR_TY Door interlock Triac 4. ON/OFF pilot lamp DRAIN_TY Drain pump Triac 5. Door interlock Heating element relay 6.

  • Page 48: Diagram (With Aqua Control)

    12.2 Diagram (with aqua control) SOI/DT 2005 01 dmm 48/49 599 36 86 11...

  • Page 49: Key To Circuit Diagram

    12.2.1 Key to circuit diagram Components in the appliance Components of the PCB Electronic board Suppressor BELV_TY Bleach solenoid Triac Drain pump DOOR_TY Door interlock Triac Aqua control DRAIN_TY Drain pump Triac Anti-boiling pressure switch Heating element relay Door interlock Motor relay: clockwise rotation Heating element Motor relay: anti-clockwise rotation...

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Ewm 1000 plus

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