Electrolux EWX11831 Service Manual
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Electrolux EWX11831 Service Manual

Uimc / emc14 inverter. series 7/8/9.
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SERIES 7
 ELECTROLUX HOME PRODUCTS
Customer Care - EMEA
Training and Operations Support
Technical Support
Edition: 06/2015 - Rev. 03
SERIES 8
Publication
number
599 77 23-65
EN
Technical and functional
SERVICE MANUAL
SERIES 9
Washing machines
with electronic control
system
EWX11831
EWX14931
UIMC / EMC14
Inverter
characteristics
NEW
COLLECTION
SERIES
7/8/9
WASHING

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Summary of Contents for Electrolux EWX11831

  • Page 1 SERVICE MANUAL WASHING SERIES 7 SERIES 8 SERIES 9 Washing machines  ELECTROLUX HOME PRODUCTS Customer Care - EMEA with electronic control Publication Training and Operations Support system number Technical Support EWX11831 599 77 23-65 EWX14931 UIMC / EMC14 Inverter Edition: 06/2015 - Rev.
  • Page 2 2/106 Technical Support - DMM 599 77 23-65 Rev. 03...

  • Page 3: Table Of Contents

    INDEX PURPOSE OF THIS MANUAL ........................6 WARNINGS ..............................7 SERIES 7 ..............................8 General characteristics ......................... 8 Control panel ............................9 3.2.1 Styling ............................... 9 3.2.2 Control panel configuration ......................10 3.2.2.1 Programme selector (S1) ......................10 3.2.2.2 Programme configuration ......................10 Pushbuttons –...
  • Page 4 13.15 Drum light (where featured) ........................ 67 ALARM SUMMARY TABLE ........................68 DIAGRAMS ..............................75 15.1 EWX11831 Diagram with THREE-PHASE ASYNCHRONOUS MOTOR ........... 75 15.1.1 Key to diagram ..........................76 15.2 EWX14931 Diagram with THREE-PHASE ASYNCHRONOUS MOTOR ........... 77 ACCESS ..............................78 16.1...
  • Page 5 16.3.3 Drum light ............................90 16.3.4 Bellow seal ............................. 91 16.3.5 Blade .............................. 92 16.3.6 Front panel ............................. 94 16.4 From the front panel, you can access ....................95 16.4.1 JET water jet ..........................95 16.4.2 Front counterweight ........................96 16.4.3 Shock absorber with/without weight sensor ...................

  • Page 6: 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 washing machines fitted with the EWX11831 and EWX14931 electronic control system (SERIES 7/8/9).

  • Page 7: Warnings

    For example: refer to the indications provided/illustrated in the <<metratester>> course at the address (http://electrolux.edvantage.net) on the Electrolux Learning Gateway portal.  On completing operations, check that the appliance has been restored to the same state of safety as when it came off the assembly line.

  • Page 8: Series 7

    3 SERIES 7 3.1 General characteristics The EWX11831 and EWX14931 electronic control system consists of two circuit boards plus the motor control system (inverter).  The control/display board, which is inserted in a plastic container fixed to the control panel...

  • Page 9: Control Panel

    3.2 Control panel 3.2.1 Styling  Max. 8 buttons  16 position programme selector  20 LEDs  Initial production LCD version Current production LCD version  Positioning of LEDs and buttons  Display board assembly, exploded view 1. Selector board protection 2.

  • Page 10: Control Panel Configuration

    3.2.2 Control panel configuration The washing programmes, the functions of the selector knob and the various buttons vary according to the model, since these are determined by the configuration of the appliance. 3.2.2.1 Programme selector (S1) The selector used is of the HI-FI type (the dial has no index and no reset position, the programme selected is indicated by the fact that the corresponding LED lights up).

  • Page 11: Pushbuttons - Leds And Lcd

    Pushbuttons – LEDs and LCD 3.2.2.3 The functions of each button are defined by the configuration of the appliance.  Button no. 1: ON/OFF This button is always present, whatever the styling.  Press it to turn the appliance on, at the same time the buzzer will sound a tone (if enabled) and the LCD display lights up (the lighted symbols are the ones for the programme).
  • Page 12  Button no. 5: OPTION This button is related to LED (L2), and performs the option of:  Extra-rinse Press this button to enable/disable the option associated with it and turn the LED on/off respectively, at the same time the programme time is updated (on the three digit display).
  • Page 13  The information described below also appears on the LCD:  Programme phases: The three icons shown have the following meanings, respectively:  Wash/Prewash/Steam  Rinse  Spin They are lit during the setting phase to display which phases are included in the programme.
  • Page 14  End of cycle: End of the programme is indicated by a permanently lit zero (when the door can be opened).  Appliance stopping with water in the tub, at the end of Programmes with the RINSE HOLD option, this is displayed by a permanently lit zero. The LED indicating the door remains on and the LED of the START/PAUSE button is turned off.

  • Page 15: Buzzer

    3.2.2.4 Buzzer This comprises a multi-tone buzzer and sounds in the following cases:  When the machine is turned on and off it emits two different tunes.  When a button is pressed it emits a short “Click”.  When the cycle ends this is indicated by a special sequence of “three long beeps” repeated at intervals of 15”...

  • Page 16: Series 8

    4 SERIES 8 4.1 General characteristics The EWX11831 and EWX14931 electronic control system consists of two circuit boards, the motor control system (inverter) and in some appliances the weight sensor board.  The control/display board, which is inserted in a plastic container fixed to the control...

  • Page 17: Control Panel

    4.2 Control panel 4.2.1 Styling  Max. 9/10 buttons  16 position programme selector  20 LEDs   Positioning of LEDs and buttons  Display board assembly, exploded view 1. Selector board protection 2. Display board protection 3. LCD screen 4.

  • Page 18: Control Panel Configuration

    4.2.1.1 Control panel configuration The washing programmes, the functions of the selector knob and the various buttons vary according to the model, since these are determined by the configuration of the appliance. 4.2.1.2 Programme selector (S1) Description: see para. 3.2.2.1 on page 10 4.2.1.3 Programme configuration Description: see para.

  • Page 19: Pushbuttons - Leds And Lcd

    Pushbuttons – LEDs and LCD 4.2.1.4 The functions of each button are defined by the configuration of the appliance.  Button no. 1: ON/OFF Description: see Button no. 1 on page 11  Button no. 2: TEMPERATURE See description on page 11 The only difference with version 7 is the representation of the cold cycle, which is represented by the cold symbol and by two...
  • Page 20  Button no. 6: OPTION It is related to the part of the LCD display (see figure) showing: the graphic bar and the “Time save” option. Press the button and half or all of the graduated scale may light up, depending on the configuration of the button. The related symbol also lights up simultaneously.
  • Page 21  LCD The information described below also appears on the LCD:  Programme phases: The icons represented respectively mean: 1. Pre-wash 2. Wash 3. Rinse 4. Spin 5. Steam combined with the programme (where featured) 6. Rinse Hold 7. Excessive detergent They light up during the programme setting where featured and during their performance.

  • Page 22: Buzzer

     Selection incorrect: Description: see page 13  End of cycle: Description: see page 14  Alarm code: Description: see page 14  Extra-rinse: Appliances which do not feature the button and related LED for the Extra rinse option can enable/disable this option by pressing a key combination (which may be silk-screen printed on the control panel or described in the instruction manual).

  • Page 23: Weight Sensor (Where Featured)

    4.2.1.6 Weight sensor (where featured) Appliances fitted with the weight sensor (inserted inside a shock absorber) are designed - thanks to the LCD display - to inform the user of the weight of the laundry inside the drum while at the same time suggesting the quantity of detergent to pour into the dispenser provided.

  • Page 24: Series 9

    In the event of problems with the touch sensors (difficulty selecting/adjusting them), clean and dry the display and do not wear gloves when setting the chosen programme. The EWX11831 and EWX14931 electronic control system consists of two circuit boards, the motor control system (inverter) and in some appliances the weight sensor board.

  • Page 25: Control Panel

    5.2 Control panel 5.2.1 Styling  Max buttons 1  Max sensors 10  16 position programme selector  22 LEDs   Positioning of LEDs and buttons  Display board assembly, exploded view 1. Selector board protection 2. Seal 3.

  • Page 26: Control Panel Configuration

    5.2.1.1 Control panel configuration The washing programmes, the functions of the selector knob and the various buttons vary according to the model, since these are determined by the configuration of the appliance. 5.2.1.2 Initial Start up The first time the appliance is turned on and after every diagnostic cycle, the language and time need to be set. 5.2.1.2.1 Set Language The first time the appliance is turned on or after a diagnostic cycle, the text line prompts you to turn the selector...

  • Page 27: Pushbuttons - Leds And Lcd

    Pushbuttons – LEDs and LCD 5.2.1.5 The functions of each button are defined by the configuration of the appliance.  Button no. 1: ON/OFF Description: see Button no. 1 on page 11 Unlike the other versions, in the SERIES 9, after pressing the ON/OFF button the LCD displays the time of day (for two seconds to allow the user to check it and if necessary update it) followed by the programme information.
  • Page 28 The settings described below not only have the symbols of the options, but they are also accompanied by a graphic bar within a frame. If the latter is lit, this means the option is enabled for the chosen programme. Otherwise it remains off. When all its segments are lit, it will start from scratch again the next time it is pressed.
  • Page 29  Sensor no. 7: START/PAUSE Touch the sensor with your finger to START or PAUSE the appliance. It is related to LED (L1), which flashes when the appliance is on pause, whereas it is lit continuously when the appliance is performing a washing cycle.
  • Page 30  The information described below also appears on the LCD:  Padlock: The icon lights up when the “child lock” is on. To indicate that all the sensors are disabled to prevent children from modifying, starting or pausing the cycle. A sensor combination needs to be pressed to activate/deactivate it.

  • Page 31: Buzzer

     End of cycle: Description: see page 14  Alarm code: Description: see page 14 5.2.1.6 Buzzer Description: see para. 3.2.2.4 on page 15 5.2.1.7 Weight sensor (where featured) Appliances fitted with the weight sensor (inserted inside a shock absorber) are designed - thanks to the LCD display - to inform the user of the weight of the laundry inside the drum while at the same time suggesting the quantity of detergent to pour into the dispenser provided.

  • Page 32: "Demo" Mode

    6 “DEMO” MODE A special cycle is designed to demonstrate the operation of these appliances in shops, without connecting them to the water mains. This way, any one of the programmes can be selected and, once the start button/sensor has been pressed/touched (START/PAUSE), the appliance will only perform some of the phases of the programme, skipping those which cannot be performed (water fill, drain, heating).

  • Page 33: Diagnostics System

    7 DIAGNOSTICS SYSTEM 7.1 Accessing diagnostics The operations listed below must be carried out within 7 seconds. Do not start the procedure with the buttons in the combination pressed 1. Switch on the appliance using the ON/OFF button. The first LED in the right hand row will light up. 2.

  • Page 34: Phases Of The Diagnostics Test

    7.3 Phases of the diagnostics test Irrespective of the type of circuit board and the configuration of the selector, after entering the diagnostic mode, turn the programme selector dial clockwise to perform the diagnostic cycle for the operation of the various components and to read any alarms.
  • Page 35 - Door safety interlock Door closed Drain, calibration - Drainage pump Water level lower of analogue - Motor up to 650 rpm then at than anti-boiling level pressure switch Drum speed in maximum spin speed (**) for spinning and spin rpm/10 ----- -----...

  • Page 36: Alarms

    8 ALARMS 8.1 Displaying user alarms When a problem occurs in the appliance and a “WARNING” or “ALARM” is triggered, this is shown in the three digit display (where the time left to the end of the cycle is shown), this information ceases to be displayed when the problem is repaired/solved.

  • Page 37: Rapid Reading Of Alarms

    8.3 Rapid reading of alarms The last alarm can even be displayed if the selector is not in the tenth diagnostic position or the machine is in normal operation (e.g. while a washing programme is in progress): → Press the START/PAUSE button and the nearest option button simultaneously (as if you were entering DIAGNOSTIC mode) for at least 2 seconds: the LCD display shows the last alarm.

  • Page 38: Operating Time Counter

    9 OPERATING TIME COUNTER Using a specific procedure, the operator can display the total operating time for the appliance, which is counted from the moment it is first switched on. The unit can count up to a maximum of 6,550 hours of operating time ...

  • Page 39: Options

    10 OPTIONS 10.1 Compatibility between options OPTIONS Rinse hold Night cycle Pre-wash/Soak (*) Stains Super rinse Easy-iron Economy Cupboard Dry Daily Super Quick Sensitive Reduced spin speed No spin Aquasol Max steam Medium steam Minimum steam Selection Phases where Pre-wash selection/ Wash modification...

  • Page 40: Description Of Options

    10.2 Description of options  Rinse hold  During the cycle the intermediate rinses and spins are performed.  Stops the appliance with water in the tub before the final spin cycle.  Once the Rinse Hold has ended, the appliance rotates the drum every two minutes for up to a maximum of 18 hours, after which it stops.

  • Page 41: Generating Steam

     Super quick  Modifies the structure of the wash phase of the COTTONS – SYNTHETICS – DELICATES cycles by half a load.  Delayed start time  Adds a pause before the start of the programme. The delay time is shown on the three digit display ...

  • Page 42: Technical Characteristics

    12 TECHNICAL CHARACTERISTICS 12.1 Construction characteristics 1. Door 13. Washing unit 2. Front panel 14. Upper counterweight 3. Base board 15. Motor 4. Control panel 16. Heating 5. Re-circulation pump 17. Belt 6. Drainage pump 18. Inverter motor control board 7.

  • Page 43: Detergent Dispenser

    12.2 Detergent dispenser 12.2.1 Detergent dispenser with multi-way solenoid valves The water in the detergent dispenser is filled through a solenoid valve for cold water (with one inlet, and 2 or 3 outlets) and where featured one for the hot water (with one inlet and one outlet). The detergent dispenser has 4 compartments.

  • Page 44: Detergent Dispenser

    12.3 Detergent dispenser 12.3.1 Arranging the flap in the detergent dispenser The detergent dispenser is designed for use with: powder detergent or liquid detergent. A flap (indicated by the arrow) has been fitted inside compartment “b” where the detergent is introduced, which can be flipped up or down.

  • Page 45: Washing Unit

    12.4 Washing unit Load capacity (cottons) Type Drum Wash volume Max. 9 Kg 66 litres The washing unit is made up of: A back casing (1) and a front casing (2), welded together to form the welded tub. Inside this is the drum (5) (made of stainless steel) with the three blades (6) (in carboran) snap-fastened to the drum.

  • Page 46: Water Circuit

    Drum with three blades inside. 12.5 Water circuit 12.5.1 OKO version drain circuit 1. Ball lock ring 2. Ball 3. Pressure chamber 4. Filter body tub tube 5. Drain pipe 6. Drainage pump 7. Filter body 8. Filter or needle trap 9.

  • Page 47: New Filter Dial

    The circuit board can be programmed/updated using the Sidekick application. For further information, please refer to the instructions provided/illustrated in the course entitled << Sidekick Guide >> at the link (http://electrolux.edvantage.net) on the Electrolux Learning Gateway portal. To update/program the main board,...

  • Page 48: Electronic Control

    12.7 Electronic control The electronic control is made up of: 1. Main electronic circuit board 2. Control/display circuit board 3. INVERTER motor control board (not shown in the figure, positioned at the bottom right of the appliance seen from the rear). The control/display PCB contains: the selector dial, to select the washing programme, the LCD display, to display the programme information;...
  • Page 49 49/106 Technical Support - DMM 599 77 23-65 Rev. 03...

  • Page 50: Electrical Components

    13 ELECTRICAL COMPONENTS  When replacing any of the components, please refer to the code shown in the list of spare parts relating to the appliance being repaired. 13.1 Noise filter 13.1.1 General characteristics This device is connected to the electricity power line input of the appliance and avoids the emission of radio frequency disturbances in the power network.

  • Page 51: Drain Pump - Aqua Control

    13.3 Drain pump - Aqua control  When replacing the pump, please refer to the code shown in the list of spare parts relating to the appliance. 13.3.1 General characteristics 1. Wheel 2. Rotor 3. Stator The pump, which drains the water at the end of the various washing cycle phases, is centrifugal and is activated by a synchronous motor.

  • Page 52: Aqua Control (Where Featured)

    13.4 Aqua control (where featured) 13.4.1 General characteristics The aqua control is a sensor positioned in contact with the bottom of the machine. It detects any water leakage from inside the washing machine and feeds the drain pump (not only during normal operation but also when the appliance is turned off with the plug inserted into the power socket).

  • Page 53: Heating Element

    13.5 Heating element  When replacing the heating element, please refer to the code shown in the list of spare parts relating to the appliance.  It is strictly forbidden to tamper with the heating element in any way!!! (e.g. replace the NTC probe, etc...) 13.5.1 General characteristics 1.

  • Page 54: Temperature Probe

    13.6 Temperature probe  When replacing the heating element, please refer to the code shown in the list of spare parts relating to the appliance.  It is strictly forbidden to tamper with the heating element in any way!!! (e.g. replace the NTC probe, etc...) 13.6.1 General characteristics 1.

  • Page 55: Analogue Pressure Switch

    13.7 Analogue pressure switch 13.7.1 General characteristics The electronic pressure switch is an analogue device that controls the water level in the tub, used in models with electronic control system, and it is directly connected to the main PCB. 1. Small pipe 2.

  • Page 56: Shock Absorber With Weight Sensor (Where Featured)

    13.8 Shock absorber with weight sensor (where featured) 13.8.1 General characteristics 1. Plunger 2. Weight sensor 3. Piston 1. Main electronic circuit board 6. Weight sensor 56/106 Technical Support - DMM 599 77 23-65 Rev. 03...

  • Page 57: Operating Principle

    13.8.2 Operating principle 1. Plunger 2. Oscillating Coil 3. PCB 4. Spring 5. Piston The weight sensor incorporated into the shock absorber is made up of an oscillator (which generates a frequency) consisting of the circuit board (3) and coil (2). Fig.

  • Page 58: Door Safety Interlock

    13.9 Door safety interlock 13.9.1 General characteristics The instantaneous door interlock allows the door to be opened as soon as the drum stops, if the conditions described further are met. Main electronic circuit board Door safety interlock (with Door sensing switch) 2a.
  • Page 59 The second pulse (which is only sent if everything is in working order) moves the cam (4) to another position, which causes the pin (5) to return to its position and therefore release the interlock; the contacts of the main switch are simultaneously opened. ...

  • Page 60: General Characteristics & Power Supply To Motor

    13.10 Three-phase asynchronous motor – Inverter & Three-phase synchronous motor with permanent magnets 13.10.1 General characteristics & Power supply to motor Medium Performance MOTOR PM Three-phase power is fed by the inverter (13), which sends through connectors 5-6-7 the three phases to connectors 1-2-3 on the motor, where the windings (X-Y-Z) are connected.

  • Page 61: Operating Principle

    13.10.2 Operating principle The alternating current permanent magnets motor is a synchronous electric motor: the speed of rotation when stationary only depends on the frequency of power supply and it is independent of the load (torque at the axis). Like all electric motors, the permanent magnets motor consists of a stator and a rotor: both these components contribute to the production of torque by iteration between the respective magnetic fields.

  • Page 62: Inverter Uimc & Emc14

    13.11 Inverter UIMC & EMC14 13.11.1 General characteristics The EWX11831 and EWX14931 electronics use a new asynchronous motor, with 2 poles, three-phase, with high performance and low noise levels. “INVERTER” operating diagram = Phase = Neutral = “INVERTER” board T IT...

  • Page 63: Circulation Pump (Where Featured)

    13.12 Circulation pump (where featured) 13.12.1 General characteristics In models with Jetsystem washing, a synchronous circulation pump is fitted, which is designed to circulate water continuously, withdrawing it from the filter body and introducing it into the tub through the bellow seal. It is powered directly by the main circuit board via a TRIAC and is fitted with a thermal cut-out.

  • Page 64: Operating Principle

    This component introduces water into the detergent dispenser and is controlled electrically by the main circuit board via TRIAC. The level of water in the tub is controlled by the analogue pressure switch. 1. Water inlet 2. Solenoid valve body 3.

  • Page 65: Flowmeter (Where Featured)

    13.14 Flowmeter (where featured) 13.14.1 General characteristics Flowmeter 1. Main electronic circuit board 5. Flow sensor Some models of solenoid valves have a built-in flow sensor, which measures the quantity of water in litres that is loaded into the appliance. In the event of a sensor failure, the water level is controlled by the analogue pressure switch.

  • Page 66: Operating Principle Of The Flowmeter

    13.14.2 Operating principle of the flowmeter The main components of the flowmeter are: Closed contact Open contact 1. Turbine (with magnet and counterweight mounted on the outside) Reed contact (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 contact (2), thus closing it.

  • Page 67: Drum Light (Where Featured)

    13.15 Drum light (where featured) The drum light consists of a high luminosity LED. When the appliance is in the selecting phase (START/PAUSE LED flashing), if the door is opened, the LED lights up and illuminates the inside of the drum. Vice versa, when the door is closed the LED is turned off.

  • Page 68: Alarm Summary Table

    14 ALARM SUMMARY TABLE Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code Tap closed or water flow too low Wrong drain pipe position Water load timeout expired Difficulties in water fill for Water inlet valve defective Cycle Paused with door START (load timeout for water...
  • Page 69 Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code Frequency of electronic Cycle blocked with door Electronic pressure Pressure sensor defective RESET pressure switch locked switch faulty Wiring or main Board defective out of limits Water inlet valve defective Frequency of electronic Air trap system leaking Electronic pressure...
  • Page 70 Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code High temperature on Heat Cycle blocked after 5 trials ON/OFF FCV Heating Sink (>88°C) or NTC of Over load condition, Motor Control board defective with door locked RESET FCV board open Dc bus voltage bellow the Cycle blocked after 5 trials...
  • Page 71 Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code Voltage value out of limit Input drying NTC defective Drying heating phases START Input drying NTC failure (open circuit or short Wiring or WD board defective skipped RESET circuit) Washing NTC sensor badly positioned, Washing NTC...
  • Page 72 Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code Wiring or main board defective Not drum position sensing Skip of the drum positioning START DSP system failure DSP sensor failure during motor activation phase RESET Main motor belt broken Not sufficient number of Wiring or main board defective START...
  • Page 73 Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code WSD board defective No communication START WSD board communication Wiring between MB and WSD, between motherboard and Cycle blocked ON/OFF alarm Main Board defective, UI defective, Weight defective, FCV WSD board RESET defective...
  • Page 74 Alarm Alarm Description Fault Condition Possible Fault Machine Action/Status Reset Key Code Incongruence between fan WD fan motor driving circuit motor status and the ON/OFF WD board defective Skip drying phase alarm driving circuit sensing RESET signal Power supply period START WD Power lower/higher than...

  • Page 75: Diagrams

    15 DIAGRAMS 15.1 EWX11831 Diagram with THREE-PHASE ASYNCHRONOUS MOTOR 75/106 Technical Support - DMM 599 77 23-65 Rev. 03...

  • Page 76: Key To Diagram

    15.1.1 Key to diagram Appliance electrical components PCB components Main electronic circuit board DRAIN_YTY Drain pump TRIAC Door safety interlock (with Door Sensing switch) DOOR_TY Door interlock TRIAC Door safety interlock (without Door sensing switch) DOOR_CLOSE_TY Door interlock TRIAC Electronic pressure switch REC PUMP_TY Circulation pump TRIAC switch NTC (washing)

  • Page 77: Ewx14931 Diagram With Three-Phase Asynchronous Motor

    15.2 EWX14931 Diagram with THREE-PHASE ASYNCHRONOUS MOTOR 77/106 Technical Support - DMM 599 77 23-65 Rev. 03...

  • Page 78: Access

    6. Detergent dispenser 7. Detergent fill pipe 8. Upper counterweight 16.2.1 EWX11831 Main board Remove the worktop (see relevant paragraph). Pull out the power supply cable from the hooks and from the connector. Unfasten the three screws securing it to the cabinet.
  • Page 79 Remove the main board. Release the hooks securing the connectors protection on one side then the other. Remove the connectors protection. Pull out the connectors positioned beside the board. Pull out the other connectors, taking care as they are retained by hooks. 79/106 Technical Support - DMM 599 77 23-65 Rev.

  • Page 80: Ewx14931 Main Board

    16.2.2 EWX14931 Main board To service the main board, use the antistatic kit a code 4055063-95/4. Remove the worktop (see relevant paragraph). Remove the power cable from the hooks that hold it close to the board. Slide off the connector. Unfasten the two screws securing it to the cabinet.
  • Page 81 Remember to use the anti-sliding kit. Unhook the three hooks that join the two casings on one side and on the other. Lift the lid. Release the three hooks that secure the board to the container and remove it (take care not to break the hooks). Remove the connectors.
  • Page 82 Board When reassembling. Once you have inserted the connectors, make sure the wiring is inside the box. So that when the lid is closed, the wiring is not crushed or cut by the two plastic parts. Fit the connectors into their proper slots and arrange the wiring as shown in the figure.

  • Page 83: Solenoid Valve

    16.2.3 Solenoid valve Remove the worktop (see relevant paragraph). Disconnect the connectors. Pull out the pipes which connect the solenoid valve to the detergent dispenser. Unscrew the water fill pipe from the solenoid valve. Push the two retainers indicated by the arrows towards the inside of the appliance.

  • Page 84: Display Board/Light Diffuser/Button Springs/Buttons Assembly

    Remove the four screws which secure the crosspiece to the cabinet. Remove the screws which secure the crosspiece to the detergent dispenser. Release the anchor tab which secures the detergent dispenser to the crosspiece. Raise both sides of the control panel so as to pull out the hooks which secure it to the front panel.
  • Page 85  Buttons spring Disconnect it from the control panel and remove it from the two side pins.  Light diffuser Unhook the three hooks that fasten it to the control panel.  Buttons The buttons have a number printed on them. See the figure for numbers. ...
  • Page 86 Thread the dial onto the selector pin. Insert the display board in its seat in the control panel. Insert the dial cover. SERIES 8 and 9 if the two earth wires connecting the front panel have been disconnected, reconnect them to the fastons of the control panel crosspiece. 86/106 Technical Support - DMM 599 77 23-65 Rev.

  • Page 87: Analogue Pressure Switch

    16.2.6 Analogue pressure switch Remove the worktop (see relevant paragraph). Remove the connector. Pull out the small pipe which connects it to the pressure chamber. Tighten the two tabs which secure it to the cabinet and remove it. 16.2.7 Detergent dispenser Remove the worktop (see relevant paragraph).

  • Page 88: Detergent Fill Pipe

    Remove the detergent dispenser. 16.2.8 Detergent fill pipe Remove the worktop (see relevant paragraph). Remove the control panel (see relevant paragraph). Remove the detergent tray (see relevant paragraph). Pull out the pipe from the detergent dispenser after breaking/loosening the clamp between the detergent dispenser and the detergent loading pipe. When reassembling, use a new clamp with the same characteristics.

  • Page 89: Door Safety Interlock

    16.3.2 Door safety interlock Remove the iron ring securing the bellow seal to the unit. Remove the part of the bellow seal concerned from the unit. Unfasten the two screws securing the door safety interlock to the front panel. Take the device and move it to the left. Turn it towards the inside (right-hand side of the flange).

  • Page 90: Drum Light

    Remove the small rod from the pin (after removal, it stays in the vertical position). Pull out the wiring protection from the door safety interlock. Disconnect the connector. To reassemble the door safety interlock, repeat the same tasks in reverse order. Make sure the small rod is correctly positioned with respect to the door safety interlock (see photo at the top of the page).

  • Page 91: Bellow Seal

    Take out the hook securing it to the bellow seal. Take the lamp out of its seat. 16.3.4 Bellow seal Remove the iron ring securing the bellow seal to the unit. Release the bellows seal from the front panel. Take the drum light out of its seat (see related paragraph). Take the circulation pipe out of its seat in the bellow seal after breaking the clamp (when reassembling, use a new clamp with the same characteristics and size 20.5).

  • Page 92: Blade

    16.3.5 Blade This blade is secured to the drum with slides and secured with blades carved into the drum. To remove it from the drum: Insert a flat-tip screwdriver into hole 6 (see figure). Place the screwdriver with the handle tilted towards the right. Push the left-hand tab downwards.
  • Page 93 Before securing the new blade insert a screwdriver beneath the tabs and raise them a little. Position the new blade inside the drum guides. Push it towards the back. Insert the flathead screwdriver at a right angle to the blade (hole 6), so as to position it at the centre of the two tub tabs.

  • Page 94: Front Panel

    16.3.6 Front panel Remove the worktop (see relevant paragraph). Remove the control panel (see relevant paragraph). Remove the iron ring and remove the door bellow seal from the front panel. Unfasten the screws securing the door safety interlock. Open the filter flap and remove it. Loosen the two screws that secure the plinth to the front.

  • Page 95: From The Front Panel, You Can Access

    16.4 From the front panel, you can access 1. The JET water circuit 2. The front counterweight 3. The shock absorbers with/without weight sensor 4. The drain water circuit 5. The pressure chamber 6. The tub suspension springs 7. The shock absorber pins 16.4.1 JET water jet Jet pipe (1).

  • Page 96: Front Counterweight

    If the catch (1) securing the circulation pump to the screw accidentally breaks. Secure the pump to the screw and secure the latter using a screw, screwing the latter into the slot (2). Size of the screw 3.5x19 Code 5024 79 51- 00/2 When reassembling, make sure the seal is in its seat in order to avoid water leaks.

  • Page 97: Drain Water Circuit

    16.4.4 Drain water circuit  Tub drain pipe Remove the worktop (see relevant paragraph). Remove the control panel (see relevant paragraph). Remove the iron ring securing the bellow seal to the front panel. Unfasten the screws securing the door safety interlock (see related paragraph).
  • Page 98 Make a note of the latch and hook with which it is secured to the tub. If the hook securing the chamber to the welded tub is broken. Use the eyelet (indicated by the red arrow). Use a screw Code 405 50 33-52/8 (AF/2P 5x16 TE/SP must have a maximum length of 16 mm and without a tip to avoid perforating the tub), secure the chamber to the tub as shown by the arrow in the photo.

  • Page 99: Tub Suspension Springs

    16.4.6 Tub suspension springs  Left spring Attach the spring as shown in the figure: the shortest leg towards the crosspiece, whereas the longest leg towards the welded tub.  Right spring The instructions provided for the left spring also apply to the right spring. When reattaching the springs (after repair work which required their removal), make sure that the bushings shown in the figure are featured on both ends.

  • Page 100: Shock Absorber Pin

    16.4.7 Shock absorber pin There is a bushing on either end of the shock absorber. It has a wider profile on one end to avoid it becoming dislodged when the pin is inserted (see the two figures below). When positioning the shock absorber inside the fastening (situated at the bottom of the cabinet or in the tub), take care when positioning the bushing, so as to insert the pin from the part of the bushing with the widest profile.

  • Page 101: Accessing The Rear Part

    16.5 Accessing the rear part 16.5.1 Back panel Loosen the screws that fix it to the cabinet. 16.6 From the back panel, you can access 1. Belt 2. Plastic pulley 3. Inverter 4. Motor 5. Heating 6. Water control 7. Rear shock absorber 8.

  • Page 102: Plastic Pulley

    16.6.2 Plastic pulley Remove the back panel (see relevant chapter). Remove the belt (see relevant chapter). Insert a retainer to secure the pulley in place. Unfasten the screw securing the pulley to the drum shaft. Tighten the screw at a torque of 60 Nm. 16.6.3 Inverter Remove the back panel (see relevant chapter).

  • Page 103: Motor

    Carefully remove the connectors (they are blocked by anti-sliding hooks). CAUTION: Position the wiring carefully when re-assembling the UIMC / EMC14 (Inverter) and set it out as shown in the figure, inside the two rails cut into the UIMC / EMC14 lid (indicated by the arrows). This is to avoid any wire being squashed/pressed against the cabinet with the risk of current leakage.

  • Page 104: Shock Absorbers

    16.6.7 Shock absorbers Remove the back panel (see relevant chapter). To take the pins out of their seats, push the locking tooth and at the same time remove it with pliers. Perform the same operations for the other pin. Take the shock absorber out. 16.6.8 Welded tub assembly Remove the worktop (see relevant paragraph).

  • Page 105: Main Drain Pipe

    16.6.11 Main drain pipe Arrange the drain pipe as shown in the figures. 16.6.12 Power supply cable clamp Squeeze it using a pair of pliers while at the same time pulling it out into the cabinet. 105/106 Technical Support - DMM 599 77 23-65 Rev.
  • Page 106 Revision Date Description Written by Approved by: XX – 0X/201X 11/2013 Document creation Pag. 60-In first row has been corrected from EWM10 to EWX11 XX – 0X/201X 01/2014 Pag. 60 the text was modified between attention box and the box where there are graphics Pag.

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