Electrolux TC2 Service Manual
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Electrolux TC2 Service Manual

Electrolux TC2 Service Manual

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© ELECTROLUX HOME PRODUCTS
ITALY S.p.A.
Spares Operations Italy
Corso Lino Zanussi, 30
I - 33080 PORCIA /PN
Fax +39 0434 394096
S.O.I.
Edition: 03-2010
with electronic control
Publication
number
599 72 84-41
EN
technical characteristics

SERVICE MANUAL

WASHING
Washing machines &
Washer-dryers
system
EWM21xx
EWM25xx
Functional and
ENV06
Styling
TC 4 / 3 / 2
Time manager 1-2
TC2
TC3
TC4

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Summary of Contents for Electrolux TC2

  • Page 1: Service Manual

    SERVICE MANUAL WASHING Washing machines & Washer-dryers © ELECTROLUX HOME PRODUCTS with electronic control ITALY S.p.A. system Publication Spares Operations Italy EWM21xx number Corso Lino Zanussi, 30 EWM25xx I - 33080 PORCIA /PN 599 72 84-41 Fax +39 0434 394096...
  • Page 2 2/78 SOI/DT 2010-03 dmm 599 72 84-41...

  • Page 3: Table Of Contents

    General characteristics WM....................... 23     5.1.2 General characteristics WD ....................... 24     CONTROL PANEL ........................... 25     5.2.1 Styling TC2 (TIME MANAGER)....................25     5.2.1.1 Control panel configuration ....................26     5.2.1.2 Programme selector (S1)....................26    ...
  • Page 4     TECHNICAL CHARACTERISTICS....................... 45     11.1 Electronic control system memory ....................45     11.1.1 General structure of the memory system..................45     11.1.2 FLASH ............................45     11.1.3 RAM............................46     11.2 Door safety interlock ........................47  ...

  • Page 5: Purpose Of This Manual

    Service Manual: • Publication no. 599 37 47-13 for HEC washing machines • Publication no. 599 70 40-15 for HEC RIM-ARCHED washer-dryers Identification table between styling (TC2/3/4) and functionality (EWM 21xx/25xx) EWM 21xx EWM 25xx Styling Washing type...

  • Page 6: Tc4

    3 TC4 GENERAL CHARACTERISTICS The ENV06 electronic control system consists of a single PCB, which incorporates the power, control and display (where the LCD display is connected) functions. The programme selector is incorporated in the board. The PCB is mounted on a casing fitted to the control panel.

  • Page 7: General Characteristics Wd

    3.1.2 General characteristics WD Version No. buttons maximum 5 (4 options + 1 start/pause) No. of LEDs maximum 14 + LCD display Programme selector 15-21 positions with main switch (incorporated in the PCB) Serial port DAAS-EAP communication protocol up to 115,200 baud 220/240V Power supply voltage 50/60 Hz (configurable)

  • Page 8: Control Panel

    CONTROL PANEL 3.2.1 Styling TC4 WM/WD • max. 5 buttons • 15 or 21-position programme selector • 14 LEDs • LCD display • Positioning of LEDs and buttons 8/78 SOI/DT 2010-03 dmm 599 72 84-41...

  • Page 9: Configuration Of Wm/Wd Control Panel

    3.2.2 Configuration of WM/WD control panel The washing programmes, the functions of the selector knob (where featured) and the various buttons vary according tot he model, since these are determined by the configuration of the appliance. 3.2.3 Programme selector (S1) The selector features 15-21 positions and incorporates the ON/OFF switch.

  • Page 10: Pushbuttons - Leds And Lcd Display

    Press button P2 in sequence to choose one of the three levels. The corresponding LED will light up to confirm the selection. Daily Light Super Quick The different washing options such as: Pre-wash, Economy, etc. are set compulsorily as a programme. 3.2.6 Pushbuttons –...
  • Page 11 • wash phase indicator LEDs: LEDs L13, L12, L16 are configurable and are used as indicators of the wash phases. Possible indications Lights during selection mode if the programme includes the pre-wash phase Pre-wash and during the performance of the pre-wash Lights during selection mode if the programme includes the wash phase and Wash during the performance of the wash...
  • Page 12 - The padlock: when it is lit, it indicates that all the buttons are disabled to prevent children from modifying, starting or pausing the cycle. To enable/disable this function, a key combination needs to be pressed. - Wrong choice of an option is displayed by <<Err>>, when a function not compatible with the chosen programme is selected.

  • Page 13: Tc3

    4 TC3 GENERAL CHARACTERISTICS The ENV06 electronic control system consists of a single PCB, which incorporates the power, control and display functions where the LCD display is connected and the programme selector is incorporated in the board. The PCB is mounted on a casing fitted to the control panel. 4.1.1 General characteristics WM Version...

  • Page 14: General Characteristics Wd

    4.1.2 General characteristics WD Version (TIME MANAGER) Version (PROPORTIONAL) No. buttons maximum 8 (5 options + 1 start/pause + 2 for time driven) No. of LEDs maximum 18 + LCD display Programme selector 15-21 positions with main switch (incorporated in the PCB) Serial port DAAS-EAP communication protocol up to 115,200 baud 220/240V...

  • Page 15: Control Panel

    CONTROL PANEL 4.2.1 Styling TC3 (TIME MANAGER) • max. 8 buttons • 15 or 21-position programme selector • 18 LEDs • LCD display Version WM Version WD • Positioning of LEDs and buttons 15/78 SOI/DT 2010-03 dmm 599 72 84-41...

  • Page 16: Control Panel Configuration

    4.2.1.1 Control panel configuration The washing programmes, the functions of the selector knob (where featured) and the various buttons vary according tot he model, since these are determined by the configuration of the appliance. 4.2.1.2 Programme selector (S1) The selector features 15-21 positions and incorporates the ON/OFF switch. The various positions of the selector may be configured to perform different washing programmes (e.g.: water level, drum movement, no.

  • Page 17: Pushbuttons And Leds

    4.2.1.4 Pushbuttons and LEDs The functions of each button are defined by the configuration of the appliance. • Button no. 1: this button is configurable and is related to LEDs (DL16÷DL5). Depending on the configuration of the appliance, it can be connected both to the temperature regulation and the spin speed regulation.
  • Page 18 • Button no. 5: this button is configurable and is related to LED (DL15); depending on the configuration of the appliance, it can perform the function of: Normal, daily, light, quick, super quick, intensive, economy, pre-wash, easy- iron, bleach, stains, super rinse, night cycle, rinse hold, half-load, reduced spin speed, no spin.

  • Page 19: Time Manager

    4.2.1.5 Time MANAGER The “Time MANAGER” is used with the COTTON, SYNTHETICS and DELICATES programmes. It is split into: “Time MANAGER 1” and “Time MANAGER2” The difference between the two versions can be seen in the number of sectors in the T-shirt (there are more for the “Time MANAGER2”).

  • Page 20: Lcd Display

    The options for the “Time MANAGER” are summarised in the following tables: Time Manager 1 COTTONS SYNTHETICS DELICATES INTENSIVE ------------- ------------- NORMAL (basic programme) NORMAL (basic programme) NORMAL (basic programme) DAILY DAILY DAILY LIGHT LIGHT LIGHT QUICK ------------- ------------- SUPER QUICK SUPER QUICK SUPER QUICK Time Manager 2...

  • Page 21: Styling Tc3 (Proportional)

    4.2.2 Styling TC3 (PROPORTIONAL) • max. 8 buttons • 15 or 21-position programme selector • 18 LEDs • LCD display Version WM Version WD • Positioning of LEDs and buttons 21/78 SOI/DT 2010-03 dmm 599 72 84-41...

  • Page 22: Control Panel Configuration

    4.2.2.1 Control panel configuration Differences between “TC3 TIME MANAGER” and “TC3 PROPORTIONAL” The P3 button controls three LEDs (DL11÷DL13) The buttons P7-P8 perform the function of “DELAYED START” In the LCD display, the T-shirt is not represented, but it is replaced by a circle formed by three arrows, which start to move when a programme with the "PROPORTIONAL"...

  • Page 23: Tc2

    The PCB is mounted on a casing fitted to the control panel. 5.1.1 General characteristics WM Version TC2 (TIME MANAGER) Version TC2 (PROPORTIONAL) No. buttons maximum 8 (5 options + 1 start/pause + 2 for time driven) No. of LEDs...

  • Page 24: General Characteristics Wd

    5.1.2 General characteristics WD Version (TIME MANAGER) No. buttons maximum 8 (5 options + 1 start/pause + 2 for time driven) No. of LEDs maximum 18 + LCD display Programme selector 15-21 positions with main switch (incorporated in the PCB) Serial port DAAS-EAP communication protocol up to 115,200 baud 220/240V...

  • Page 25: Control Panel

    CONTROL PANEL 5.2.1 Styling TC2 (TIME MANAGER) • max. 8 buttons • 15 or 21-position programme selector • 2 LEDs • LCD display Version WM Version WD • Positioning of LEDs and buttons 25/78 SOI/DT 2010-03 dmm 599 72 84-41...

  • Page 26: Control Panel Configuration

    5.2.1.1 Control panel configuration The symbols displayed in the two WM and WD versions can have a symbolic representation and different positions. The washing programmes, the functions of the selector knob (where featured) and the various buttons vary according tot he model, since these are determined by the configuration of the appliance. 5.2.1.2 Programme selector (S1) The selector features 15-21 positions and incorporates the ON/OFF switch.

  • Page 27: Pushbuttons And Lcd Display

    5.2.1.4 Pushbuttons and LCD display The functions of each button are defined by the configuration of the appliance • Button no. 1: TEMPERATURE The default programme temperature is the basic one. Press the button to modify it from a maximum to a minimum depending on the programme.

  • Page 28: Time Manager

    5.2.1.5 Time MANAGER The “Time MANAGER” is used with the COTTON, SYNTHETICS and DELICATES programmes. It is split into: “Time MANAGER 1” and “Time MANAGER2” The difference between the two versions can be seen in the number of sectors in the T-shirt (there are more for the “Time MANAGER2”).

  • Page 29: Lcd Display

    The options for the “Time MANAGER” are summarised in the following tables: Time Manager 1 COTTONS SYNTHETICS DELICATES INTENSIVE ------------- ------------- NORMAL (basic programme) NORMAL (basic programme) NORMAL (basic programme) DAILY DAILY DAILY LIGHT LIGHT LIGHT QUICK ------------- ------------- SUPER QUICK SUPER QUICK SUPER QUICK Time Manager 2...

  • Page 30: Styling Tc2 (Proportional)

    5.2.2 Styling TC2 (PROPORTIONAL) • max. 8 buttons • 15 or -21-position programme selector • 2 LEDs • LCD display • Positioning of LEDs and buttons 5.2.2.1 Control panel configuration The description of the “PROPORTIONAL” operation is on page 22.

  • Page 31: Demo Mode Setting

    6 DEMO MODE SETTING Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional” 1. Switch off the appliance 2. Press the START/PAUSE button and the nearest option button simultaneously (as shown in the figure). 3. Holding down both buttons, switch the appliance on by turning the programme selector by three positions clockwise.

  • Page 32: Diagnostic Test Phases

    Diagnostic test phases Irrespective of the type of PCB and the configuration of the programme selector, after entering the diagnostic mode, turn the programme selector clockwise to perform the diagnostic cycle for the operation of the various components and to read any alarms (all alarms are enabled in the diagnostic cycle). Selector position Components activated Working conditions...

  • Page 33: Alarms

    START/PAUSE button in sequence (as shown in the figure). • To return to the last alarm, press the START/PAUSE button. Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional” 33/78...

  • Page 34: Displaying The Alarm

    8.2.1 Displaying the alarm The alarm is displayed by a repeated flashing sequence of the START / PAUSE button with red and green light (0.5 seconds on, 0.5 seconds off with a 2.5 second pause between the sequences). • START / PAUSE button indicator with red light → indicates the first digit of the alarm code (family) •...

  • Page 35: Rapid Reading Of Alarms

    • after repairing the appliance, to check whether it re-occurs during testing. Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional” 1. Select diagnostic mode and turn the programme selector to the tenth position (reading of alarms) 2.

  • Page 36: Operating Time Counter

    30 seconds per programme only whole hours of operation are counted (1 hr and 59 min = 1 hr) Reading of operating time Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional”...

  • Page 37: Washing Programmes And Options

    WASHING PROGRAMMES AND OPTIONS 10.1 Possible programmes The washing programmes can be configured. The basic programmes are listed in the table below. Programme No. rinses Final spin (rpm) Temperature (°C) 67(*) (**) 55 (*) (**) 450/650/850/1000/1200/ Cotton 1300/1400/1600/1800 50/40E 44(*) (**) cold 60/50E...

  • Page 38: Options (For Ewm 21Xx Appliances With Universal Motor)

    10.2 Options (for EWM 21xx appliances with universal motor) The following table contains the possible washing programme options, their compatibility with one another and with the cycle and when they can be selected or modified. The options can be selected in various ways: using the programme selector: in this case, the options are configured as special programmes.
  • Page 39 OPTIONS Phases Spin speed Temp. Max. Min. 40°C X X X Sport X X X X 30°C X X X cold X X X Shirts 30°C X X X X Mixed 1600 40°C X X X X X X X X X X X X X X 90°C X X X...

  • Page 40: Options (For Ewm 25Xx Appliances With Asynchronous Motor And Inverter)

    10.3 Options (for EWM 25xx appliances with asynchronous motor and inverter) The following table contains the possible washing programme options, their compatibility with one another and with the cycle and when they can be selected or modified. The options can be selected in various ways: using the programme selector: in this case, the options are configured as special programmes.
  • Page 41 OPTIONS Phases Spin speed Temp. Max. Min. X X X X X X X 30°C X X X cold X X X Shirts 30°C X X X X Mixed 1800 40°C X X X X X X X X X X X X X X 90°C X X X...

  • Page 42: Compatibility Between Options

    10.3.1 Compatibility between Options OPTIONS Rinse hold Night cycle Pre-wash (*) (*) Stains Bleach (*) (*) Extra rinse Easy-iron Economy Intensive Normal Daily Light Quick Super Quick Sensitive Reduced spin speed No spin Half-load Selection Phases Pre-wash where selection / Wash modification Rinses...

  • Page 43: Description Of Options

    10.4 Description of options • Rinse hold → Stops the appliance with water in the tub before the final spin cycle. → To drain the water, reset the programme and then select a drain or spin cycle. • Night cycle →...
  • Page 44 • Reduced spin speed → reduces the speed of all spins as shown in the table Maximum spin speed (rpm) 900 1000 1100 1200 1300 1400 1550 Reduction for COTTON (rpm) Reduction for ALL OTHER CYCLES (rpm) • No spin →...

  • Page 45: Technical Characteristics

    TECHNICAL CHARACTERISTICS 11.1 Electronic control system memory 11.1.1 General structure of the memory system The system features a FLASH memory inside the micro-processor, which allows the recording of the configuration data, the description of the cycle, the status of the appliance in the event of a power failure and the alarms.

  • Page 46: Ram

    Washing cycle tables: each washing cycle consists of a series of phases (steps); the steps are the basic instructions which comprise the description of the cycle, which is common to all appliances having the same characteristics. Water fill Motor movement Reset Heating Drain...

  • Page 47: Door Safety Interlock

    11.2 Door safety interlock There are two types of door interlock: • volumetric with PTC • instantaneous 11.2.1 Volumetric interlock with PTC 10 Anti-disturbance filter 19 Door safety interlock 20 PCB ON/OFF = Main switch (incorporated in the programme selector) 11.2.1.1 Operating principle When the washing programme is started by pressing the start/pause button, the bi-metal PTC (contacts 3-5) is powered by the triac (Door_TY) on the PCB: after 2-4 seconds, this closes the switch (5-4) which powers...

  • Page 48: Instantaneous Door Interlock

    11.2.2 Instantaneous door interlock • With this safety device, the door can be opened immediately after the end of the cycle. Door safety interlock 20 Anti-disturbance filter 20 PCB ON/OFF = Main switch (incorporated in the programme selector) 11.2.2.1 Operating principle •...

  • Page 49: Water Fill System

    11.3 Water fill system The solenoid valves are powered by the PCB by means of the triac and the water level in the tub is controlled by the analogue pressure switch. Analogue pressure switch Pre-wash solenoid valve Wash solenoid valve Bleach solenoid valve 20 PCB 11.3.1 Flowmeter...

  • Page 50: Operating Principle Of The Flowmeter

    11.3.2 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) 2 – Reed contact (normally open) 3 - Magnet 4 - Counterweight Signal 0 Signal 1 Water entering the solenoid valve rotates the turbine (1) and magnet (3), which passes in front of the Reed...

  • Page 51: Analogue Pressure Switch Of Water Level Control In The Tub

    11.4 Analogue pressure switch of water level control in the tub General characteristics The electronic pressure switch is an analogue device that controls the water level in the tub, used in the models with electronic control system and it is directly connected to the main PCB. ELECTRONIC PRESSURE SWITCH Electronic circuit Electrical symbol...

  • Page 52: Drain Pump

    11.5 Drain pump 15 Drain pump 16 Overload cut-out 20 PCB The PCB powers the drain pump via a triac as follows: until the electronic pressure switch closes on empty, after which the pump is actuated for a brief period or passes to the subsequent phase for a pre-determined period (and possibly an alarm is displayed) 11.6 Circulation pump (where featured)

  • Page 53: Heating

    11.7 Heating NTC temperature sensor Heating element (with thermal fuses) 20 PCB K1 Relay 1. Tubular casing 2. Thermal fuses 3. NTC probe 4. Connectors The heating element is powered by a relay (K1) of the PCB and it is fitted with two thermal fuses, which interrupt if the temperature degree exceeds the values to which they are calibrated.

  • Page 54: Universal Motor (Ewm 21Xx)

    11.9 Universal motor (EWM 21xx) 11 Tachometric generator 12 Stator 13 Thermal cut-out 14 Rotor 20 PCB 11.9.1 Power supply to motor The PCB powers the motor via a triac; the direction of rotation is reversed by switching the contacts on the two relays (K2-K3), which modify the connection between the rotor and the stator.

  • Page 55: Anti-Foam Control System

    11.11 Anti-foam control system The anti-foam control procedure is performed via the electronic pressure switch. Spin phase without foam Spin phase with little foam Spin Anti-foam Spin ( Electronic level ) 450 rpm pulses 450 rpm pulses FUCS FUCS • Spin with little foam: if the contact of the electronic pressure switch closes on "full", the spin phase is interrupted;...

  • Page 56: Fucs

    11.12 “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 57 • Balancing in the longest available time interval Phase Unbalancing index Time-out (sec.) • Unbalancing after all phases In this case the spin (or pulse) is not performed. 57/78 SOI/DT 2010-03 dmm 599 72 84-41...

  • Page 58: Drying Circuit

    DRYING CIRCUIT 1. Fan 2. Fan motor 3. Heating element casing 4. Conduit 5. Bellow seal 6. Tub-condenser sleeve 7. Drying condenser 8. Solenoid valve 9. Condensation intake tube and steam vent tube 10. Solenoid valve-air break tube 11. Coupling (Air-break) 12.

  • Page 59: Temperature Control

    12.1 Temperature control The drying temperature is controlled by an NTC sensor positioned on the duct; the heating element casing features two safety thermostats (one of which is a manual-reset type). 8. Washing heating element 9. PCB - WD 10. Safety thermostat (auto-reset) 11.

  • Page 60: Alarm Summary Table

    12.2 Alarm Summary Table Alarm Description Possible fault Machine status/action Reset No alarm ---------------- ---------------- ---------------- Tap closed or water pressure too low; Drain tube improperly positioned; Water fill solenoid valve faulty; Leaks from water circuit on Water fill difficulty during washing Cycle is paused with door locked START/RESET pressure switch;...
  • Page 61 Alarm Description Possible fault Machine status/action Reset Wiring faulty; Door safety interlock faulty; Door open (after 15 sec.) Cycle paused START/RESET Main circuit board faulty. Wiring faulty; Door safety interlock faulty; Problems with door lock Electrical current leak between heating element and ground; Main Cycle paused START/RESET PCB faulty.
  • Page 62 Alarm Description Possible fault Machine status/action Reset Overheating during washing Wiring faulty; NTC sensor for wash cycle faulty; Heating element Safety drain cycle (temperature higher than 88°C for RESET faulty; Main PCB faulty. Cycle stops with door open more than 5 min.) Heating element power relay faulty Safety drain cycle (incongruence between sensing and...
  • Page 63 Alarm Description Possible fault Machine status/action Reset ON/OFF Clock faulty Display board ---------------- RESET Communication error between main Faulty wiring between main PCB and Inverter; Inverter PCB faulty; PCB and Inverter board Cycle blocked ON/OFF Main PCB faulty. Cycle stops with door locked Solenoid valve blocked with Wiring faulty;...
  • Page 64 Alarm Description Possible fault Machine status/action Reset Incongruence between safety relay Safety drain cycle (in the main PCB) and safety sensing Wiring faulty; Main PCB faulty RESET Cycle stops with door open circuit Safety sensing circuit faulty (wrong Safety drain cycle Main circuit board faulty RESET input voltage to micro-processor)

  • Page 65: Diagrams

    13 DIAGRAMS 13.1 WM diagram with UNIVERSAL MOTOR EWM 21xx 65/78 SOI/DT 2010-03 dmm 599 72 84-41...
  • Page 66 • Key to WM diagram with UNIVERSAL MOTOR EWM 21xx Appliance electrical components PCB components 1. Display board DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Circulation pump Triac 4. NTC temperature sensor Heating element relay 5.

  • Page 67: Wm Diagram With Three-Phase Asynchronous Motor Ewm 25Xx

    13.2 WM diagram with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx 67/78 SOI/DT 2010-03 dmm 599 72 84-41...
  • Page 68 • Key to WM diagram with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx Appliance electrical components PCB components 1. Display board DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Circulation pump Triac 4. NTC temperature sensor Heating element relay 5.

  • Page 69: Wd Diagram With Universal Motor Ewm 21Xx

    13.3 WD diagram with UNIVERSAL MOTOR EWM 21xx 69/78 SOI/DT 2010-03 dmm 599 72 84-41...
  • Page 70 • Key to WD diagram with UNIVERSAL MOTOR EWM 21xx Appliance electrical components PCB components 1. Display board or LCD DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Circulation pump Triac 4. NTC temperature sensor (washing) Relay 5.

  • Page 71: Wd Diagram With Three-Phase Asynchronous Motor Ewm 25Xx

    13.4 WD diagram with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx 71/78 SOI/DT 2010-03 dmm 599 72 84-41...
  • Page 72 • Key to WD diagram with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx Appliance electrical components PCB components 1. Display board or LCD DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Circulation pump Triac 4. NTC temperature sensor (washing) Relay 5.

  • Page 73: Access To The Wm Electronic Control System (Hc Cabinet)

    14 ACCESS TO THE WM ELECTRONIC CONTROL SYSTEM (HC cabinet) 14.1 Worktop Remove the two rear screws securing it to the cabinet and push the top panel backwards to remove it. 14.2 Control panel Press the drawer lock. Extract it. d.
  • Page 74 a. Loosen the screws which secure the control panel to the crosspiece. b. Release the hook. c. Lift the control panel up and extract it. d. Rotate the control panel. e. Detach the connector indicated by the arrow. Arrange the wiring as shown in the figure. g.
  • Page 75 a. Position it as shown in the figure. b. Remove the screws and release the hooks which secure the PCB casing to the control panel. c. Before mounting the new PCB, extract the knob, by pressing the hooks indicated by the arrows as shown in the figure. While re-assembling, repeat the same operations in the reverse order and take care to position the knob correctly.

  • Page 76: Access To The Wm/Wd Electronic Control System (Nexus Cabinet)

    15 ACCESS TO THE WM/WD ELECTRONIC CONTROL SYSTEM (NEXUS cabinet) 15.1 Worktop To remove the sheet panel, unscrew the four screws situated above the top and the two rear screws. 15.2 Control panel Extract the detergent dispenser. c. Loosen the two screws which secure the control panel to the dispenser.
  • Page 77 Loosen the screw which secures the PCB (which controls the WD section) to the bracket, extract it and position it so that it can facilitate the removal of the control panel. g. Loosen the two screws which secure the control panel to the crosspiece.
  • Page 78 Should problems arise with the wiring of the microdoor, detach the connector from the board. m. To extract the board, remove the screws, release the hooks which secure it to the control panel. Warning: the screws which secure the board in place could be cross head or Torx screws (T20).

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