Electrolux TC2 Service Manual
Washing machines & washer-dryers with electronic control system
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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
Edition: 2007-06-04
Publication no.
599 38 94-46
EN
Technical and functional
SERVICE MANUAL
Washing machines
&
Washer-dryers
with electronic control
system
EWM21xx
EWM25xx
characteristics
ENV06
Styling
TC 4 / 3 / 2
WASHING
TC2
TC3
TC4
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Table of Contents
Related Manuals for Electrolux TC2
Summary of Contents for Electrolux TC2
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Page 1: Service Manual
SERVICE MANUAL WASHING Washing machines & Washer-dryers © ELECTROLUX HOME PRODUCTS ITALY S.p.A. with electronic control Publication no. Spares Operations Italy system Corso Lino Zanussi, 30 I - 33080 PORCIA /PN 599 38 94-46 EWM21xx Fax +39 0434 394096 EWM25xx... - Page 2 2/75 SOI/DT 2007-06 dmm 599 38 94-46...
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Page 3: Table Of Contents
4.2.2.2 PROPORTIONAL........................21 TC2 ................................22 GENERAL CHARACTERISTICS......................22 CONTROL PANEL ..........................23 5.2.1 TC2 (TIME MANAGER) Styling.......................23 5.2.1.1 Configuration of the TC2 (TIME MANAGER) control panel .............24 5.2.2 Programme selector (S1) ........................24 5.2.3 Programme configuration ........................24 5.2.4 Buttons and LCD ..........................25 5.2.5 Time MANAGER ..........................26 5.2.5.1... - Page 4 11.1.2 FLASH .............................44 11.1.3 RAM..............................45 11.2 Door interlock ............................46 11.2.1 Voltmetric interlock with PTC......................46 11.2.1.1 Operating principle ........................46 11.2.2 Instantaneous door interlock ......................47 11.2.2.1 Operating principle ........................47 11.2.2.2 Conditions required for opening the door.................47 11.2.2.3 Automatic unlock ........................47 11.3 Water fill system..........................48 11.3.1 Flow meter ............................48 11.3.2...
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Page 5: Purpose Of This Manual
Publication no. 599 35 23-17 for NEXUS-P6000 washing machines • Publication no. 599 34 84-67 for washing machines produced in Spain • Publication no. 599 37 47-13 for HEC washing machines 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 ENV060 electronic control system consists of a single PCB, which incorporates the power, control and display (where the 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: Control Panel
CONTROL PANEL 3.2.1 Styling TC4 • max. 5 buttons • 15 or 21-position programme selector • LEDs 14 • Display • Disposition of LEDs and buttons 7/75 SOI/DT 2007-06 dmm 599 38 94-46... -
Page 8: Configuration Of Control Panel
3.2.2 Configuration of control panel The washing programmes, the functions of the selector knob and the various pushbuttons vary according to the 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 9: Pushbuttons - Leds And Display
Pressing button P2 sequentially, it is possible to choose one of the three levels and the lighting up of the corresponding LED confirms the selection. Daily Light Super quick The different washing options like: Prewash, Economy, etc. are set obligatory as programme. 3.2.6 Pushbuttons –... - Page 10 • LED wash phase indicators: The LEDs L13, L12, L16 are configurable and are used as indicators of the wash phases Indications Lights during selection mode if the programme includes the pre-wash phase, Pre-wash and during the execution of the pre-wash Lights during selection mode if the programme includes the wash phase, and Wash during the execution of the wash...
- Page 11 - The padlock: when is on, it indicates that all the buttons are disabled to prevent the children from modifying, starting or pausing the cycle. To disable this function it is necessary to push a key combination. - Wrong choice of an option is displayed by Err, when a function not compatible with the chosen programme is selected.
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Page 12: Tc3
4 TC3 GENERAL CHARACTERISTICS The ENV060 electronic control system consists of a single PCB, which incorporates the power, control and display (where the LCD display is connected) functions 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 13: General Characteristics Wd
4.1.2 General characteristics WD Version (TIME MANAGER) Version (PROPORTIONAL) Number of buttons Max. 8 (5 options + 1 start/pause + 2 for time driven) Number of LEDs Max. 18 + LCD display 15-21 positions with main switch (incorporated in the PCB ) Programme selector Serial port DAAS-EAP communications protocol up to 115.200 baud... -
Page 14: Control Panel
4.2 CONTROL PANEL 4.2.1 TC3 (TIME MANAGER) Styling • max. 8 buttons • 15 or 21-position programme selector • 18 LEDs • LCD display Version WM Version WD • Disposition of LEDs and buttons 14/75 SOI/DT 2007-06 dmm 599 38 94-46... -
Page 15: Configuration Of The Tc3 (Time Manager) Control Panel
4.2.1.1 Configuration of the TC3 (TIME MANAGER) control panel The washing programmes, the functions of the selector knob and the various pushbuttons vary according to the 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. -
Page 16: 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 (DL1÷DL5). Depending on the configuration of the appliance it can be connected both to the temperature regulation and the spin speed regulation. -
Page 17: Time Manager
• Button no. 5: this button is configurable and is related to LED (DL15). Depending on the configuration of the appliance it can performs the function of: Normal, daily, light, quick, super quick, intensive, economy, prewash, easy-iron, bleach, stains, super rinse, night cycle, rinse hold, half load, spin reduction, no spin. -
Page 18: Lcd Display
Daily cycle indicated for quite dirty clothes. Normal cycle indicated for quite dirty clothes worn many times. Intensive cycle indicated for very dirty clothes which needs anti- stain treatments, soak and prewash. The levels are represented in the following table: COTTONS SYNTHETICS DELICATES... - Page 19 Padlock See page 11 Washing phases (both for washing machines and washer-dryers) Washing, rinses, drain and spin light in the selection mode if the programme includes these phases and during the phase execution. Drying phase It lights in the selection mode if the programme includes it and during the execution of the phase.
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Page 20: Tc3 (Proportional) Styling
4.2.2 TC3 (PROPORTIONAL) Styling • max. 8 buttons • 15 or 21-position programme selector • 18 LEDs • LCD display Version WM Version WD • Disposition of LEDs and buttons 20/75 SOI/DT 2007-06 dmm 599 38 94-46... -
Page 21: Configuration Of The Tc3 Control Panel
4.2.2.1 Configuration of the TC3 control panel Differences between “TC3 TIME MANAGER” and “TC3 PROPORTIONAL” The P3 button refers to three LEDs (DL11÷DL13). The P7-P8 buttons feature the function of “DELAYED START”. In the LCD display there is not a t-shirt, but it is replaced by circle composed by three arrows which start to move around when a programme with the “PROPORTIONAL”... -
Page 22: Tc2
The PCB is mounted on a casing fitted to the control panel. Version TC2 (TIME MANAGER) Version TC2 (PROPORTIONAL) Number of buttons Max. 8 (5 options + 1 start/pause + 2 for time driven) Number of LEDs Max. -
Page 23: Control Panel
CONTROL PANEL 5.2.1 TC2 (TIME MANAGER) Styling • max. 8 buttons • 15 or 21-position programme selector • 2 LEDs • LCD display • Disposition of LEDs and buttons 23/75 SOI/DT 2007-06 dmm 599 38 94-46... -
Page 24: Configuration Of The Tc2 (Time Manager) Control Panel
5.2.1.1 Configuration of the TC2 (TIME MANAGER) control panel The washing programmes, the functions of the selector knob and the various pushbuttons vary according to the model, since these are determined by the configuration of the appliance. 5.2.2 Programme selector (S1) The selector features 15-21 positions and incorporates the ON/OFF switch. -
Page 25: Buttons And Lcd
5.2.4 Buttons and LCD The functions of each button are defined by the configuration of the appliance. • Button no. 1: TEMPERATURE The temperature set by the programme is the base one, pressing the button it is possible to modify it from a max. -
Page 26: Time Manager
5.2.5 Time MANAGER The “Time MANAGER” has the function to modify the programme setting, according to the type of dirt so as to obtain a reduction or an increase of the washing time, displaying the dirt level through an icon, represented by a t-shirt and the time through the three digits positioned on the right of the LCD display. - Page 27 The levels are represented in the following table: 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 Padlock See page 11 Washing phases Pre-wash, wash, rinses, drain and spin light up in selection mode if the programme includes these phases and during...
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Page 28: Tc2 (Proportional) Styling
15 or 21-position programme selector • LEDs 2 • LCD Display • Disposition of LEDs and buttons 5.2.5.2 Configuration of the TC2 (PROPORTIONAL) control panel The operation is the same as the one described at page 23. 28/75 SOI/DT 2007-06 dmm 599 38 94-46... -
Page 29: Demo Mode
6 DEMO MODE Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional” 1. Switch off the appliance. 2. Press and hold down START/PAUSE button and the nearest option button simultaneously (as represented in figure). 3. Holding down both buttons, switch the appliance on by turning the programme selector by three positions clockwise. -
Page 30: Diagnostics Phases
Diagnostics phases Irrespective of the type of PCB and the configuration of the programme selector it is possible, after entering diagnostics mode, to perform diagnostics on the operation of the various components and to read the alarms by turning the programme selector clockwise. All the alarms are enabled during the diagnostics cycle. Function Selector position Components actioned Operating conditions... - Page 31 - Reading/Cancellation of the last ----- ---- alarm (*) In most cases, this time is sufficient to check the heating. However, the time can be increased by repeating the phase without draining the water: pass for a moment to a different phase of the diagnostics cycle and then back to the heating control phase (if the temperature is higher than 80°C, heating does not take place).
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Page 32: Alarms
The last alarm is displayed. • To display the previous alarms, press sequentially the left button of the START/PAUSE button (as represented in figure). Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional” • To return to the last alarm press the START/PAUSE button. -
Page 33: 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). • button indicator START / PAUSE with red light → indicates the first digit of the alarm code (family) •... -
Page 34: Rapid Reading Of Alarm Codes
• 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 diagnostics mode and turn the programme selector to the tenth position (reading of alarms). -
Page 35: Operating Time Counter
The precision of the counter is 30 seconds per programme Only whole hours of operation are counted (1 hr and 59 min = 1 hr) 9.1.1 Reading of operating time Version TC3 Version TC2 Version TC4 “Time Manager” “Proportional” “Time Manager” “Proportional” 5. Switch off the appliance. -
Page 36: Washing Programmes And Options
10 WASHING PROGRAMMES AND OPTIONS 10.1 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) 67(*) (**) 55 (*) (**) 450/650/850/1000/1200/ Cotton 1300/1400/1800 50/40E 44(*) (**) cold... -
Page 37: Options (For Appliances Ewm 21Xx With Universal Motor)
10.2 Options (for appliances EWM 21xx with universal motor) The table below lists the possible options for the washing programmes, the compatibility of the various options and with the cycle, and when it is possible to select or modify the options. The options can be selected in three ways: using the programme selector: in this case, the options are configured as special programmes;... - Page 38 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...
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Page 39: Options (For Appliances Ewm 25Xx With Asynchronous Motor And Inverter)
10.3 Options (for appliances EWM 25xx with asynchronous motor and inverter) The table below lists the possible options for the washing programmes, the compatibility of the various options and with the cycle, and when it is possible to select or modify the options. The options can be selected in different ways: using the programme selector: in this case, the options are configured as special programmes;... - Page 40 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...
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Page 41: 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 in Pre-wash which selection or Wash modification Rinses... -
Page 42: 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 → Eliminates all spin phases and adds three rinses in COTTON cycles and two rinses in SYNTHETICS cycles. - Page 43 • 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 →...
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Page 44: Technical Characteristics
11 TECHNICAL CHARACTERISTICS 11.1 Control system memory 11.1.1 General structure of the memory system The system features an EEPROM memory module, fitted externally to the microprocessor, which serves to memorize the configuration data, the description of the cycle, the status of the appliance in the event of a power failure, and the alarms. -
Page 45: 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 46: Door Interlock
11.2 Door interlock There are two types of door interlock: • voltmetric with PTC • instantaneous 11.2.1 Voltmetric interlock with PTC 10 Suppressor 19 Door interlock 20 PCB ON/OFF = Main switch (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 on the PCB: after 2 –... -
Page 47: Instantaneous Door Interlock
11.2.2 Instantaneous door interlock • With this safety device it is possible to open the door immediately after the end of the cycle. Door interlock 10 Suppressor 20 PCB ON/OFF = Main switch (programme selector) 11.2.2.1 Operating principle When the ON/OFF switch closes and the appliance is switched on, power is applied to the bimetallic PTC switch (contact 4-2), but the door remains unlocked. -
Page 48: Water Fill System
11.3 Water fill system The electric valves are powered by the PCB by means of the triac and the control of the water level in the tub is carried out by the analogue pressure switch. Analogue pressure switch Prewash electric valve Wash electric valve Bleach electric valve 20 PCB... -
Page 49: Operating Principle Of Flow Meter
11.3.2 Operating principle of flow meter The main components of the flow sensor are: Contact closed Contact open 1. Turbine (with magnet and counterweight mounted on the outside) Reed switch (normally open) Magnet Counterweight Signal 0 Signal 1 Water entering the solenoid valve rotates the turbine (1) and magnet (3), which passes in front of the reed switch (2), thus closing it. -
Page 50: Analogue Pressure Switch Of Water Level Control In The Tub
11.4 Analogue pressure switch of water level control in the tub General features The electronic pressure switch is an analogue device that controls the water level in the tub, used in the models with electronic control and it is directly connected to the main PCB. ELECTRONIC PRESSURE SWITCH Electronic circuit Electric symbol... -
Page 51: Drain Pump
11.5 Drain pump 15 Drain pump 16 Thermal protector 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 actioned for a brief period or passes to the subsequent phase; for a pre-determined period (and eventually an alarm appears). -
Page 52: Heating
11.7 Heating NTC temperature sensor 13 Heating element (with thermal fuses) 14 PCB K1 Relay 1. Tubular casing 2. Thermal fuses 3. NTC Sensor 4. Connectors The heating element is powered by a relay (K1) of the electronic board and is provided with two thermal fuses, which interrupt if the temperature degree exceeds the values by which they are calibrated. -
Page 53: Universal Motor (Ewm 21Xx)
11.9 Universal motor (EWM 21xx) 11 Tachometric generator 12 Stator 13 Protector 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 of the contacts on the two relays (K2-K3), which modify the connection between the rotor and the stator. -
Page 54: Anti-Foam Control System
11.11 Anti-foam control system The anti-foam control procedure (if featured) is performed via the electronic pressure switch. Spin phase without foam Spin phase with little foam Spin Spin Anti-foam (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 55: Fucs" (Fast Unbalance Control System)
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 56 • 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. 56/75 SOI/DT 2007-06 dmm 599 38 94-46...
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Page 57: 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 58: Temperature Control
12.1 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 59: Table Of Alarm Codes
12.2 Table of alarm codes Alarm Possible fault Action/machine status Reset Tap closed or water pressure too low; Drain tube improperly positioned; Water fill solenoid valve is faulty; Leaks from water circuit on pressure switch; Pressure switch faulty; Wiring Cycle is paused with door locked. START/RESET faulty;... - Page 60 Alarm Possible fault Action/machine status Reset Cycle blocked, door locked (after 5 Motor faulty; wiring faulty; PCB faulty. RESET attempts). PCB faulty. Cycle blocked. RESET Cycle blocked, door locked (after 5 PCB faulty; current leakage from motor or from wiring. RESET attempts).
- Page 61 Alarm Possible fault Action/machine status Reset PCB faulty. Cycle interrupted. RESET Faulty PCB (Wrong configuration data). Cycle interrupted. RESET Incompatibility between main board and Inverter. Cycle interrupted. OFF/ON Display board. Cycle interrupted. ON/OFF RESET Display board. Cycle interrupted. ON/OFF RESET Display board.
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Page 62: Diagram Wm With Universal Motor Ewm 21Xx
12.3 Diagram WM with UNIVERSAL MOTOR EWM 21xx 62/75 SOI/DT 2007-06 dmm 599 38 94-46... - Page 63 • Key to diagram WM with UNIVERSAL MOTOR EWM 21xx Electrical components on appliance Components on main board 1. Display board DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Recirculation pump Triac 4. NTC temperature sensor Heating element relay 5.
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Page 64: Diagram Wm With Three-Phase Asynchronous Motor Ewm 25Xx
12.4 Diagram WM with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx 64/75 SOI/DT 2007-06 dmm 599 38 94-46... - Page 65 • Key to diagram WM with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx Electrical components on appliance Components on main board 1. Display board DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Recirculation pump Triac 4.
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Page 66: Diagram Wd With Universal Motor Ewm 21Xx
12.5 Diagram WD with UNIVERSAL MOTOR EWM 21xx 66/75 SOI/DT 2007-06 dmm 599 38 94-46... - Page 67 • Key to diagram WD with UNIVERSAL MOTOR EWM 21xx Electrical components on appliance Components on main board 1. Display board or LCD DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogic pressure switch REC-TY Recirculation pump Triac 4.
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Page 68: Diagram Wd With Three-Phase Asynchronous Motor Ewm 25Xx
12.6 Diagram WD with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx 68/75 SOI/DT 2007-06 dmm 599 38 94-46... - Page 69 • Key to diagram WD with THREE-PHASE ASYNCHRONOUS MOTOR EWM 25xx Electrical components on appliance Components on main board 1. Display board or LCD DOOR_TY Door interlock Triac 2. Flowmeter DRAIN_TY Drain pump Triac 3. Analogue pressure switch REC-TY Recirculation pump Triac 4.
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Page 70: Accessibility To The Electronic Control System
13 ACCESSIBILITY TO THE ELECTRONIC CONTROL SYSTEM 13.1.1 Work top 13.1.2 Top panel Remove the two rear screws, push the top panel towards the rear and release from the cabinet. 13.1.3 Control panel Press the drawer lock. Extract. d. Remove the screw which secures the control panel to the dispenser. e. - Page 71 c. Loosen the screws which secure the control panel to the cross- member. d. Release the hook. e. Lift the control panel up and extract it. Rotate the control panel. g. Detach the connector indicated by the arrow. Place the wiring (see fig.). g.
- Page 72 a. Place it as shown in figure. b. Remove the screws and release the hooks which secure the board casing to the control panel. c. Before mounting the new board extract the knob pressing the hooks indicated by the arrows as represented in figure. While re-assembling repeat the same operations in reverse order and pay attention to position correctly the knob.
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Page 73: Accessibility To The Electronic Control System Wm/Wd (Nexus Cabinet)
14 ACCESSIBILITY TO THE ELECTRONIC CONTROL SYSTEM WM/WD (NEXUS cabinet) 14.1.1 Work top To remove the steel plate panel, remove the four screws placed above the top and the two rear screws. 14.1.2 Control panel Extract the detergent drawer. c. Remove the 2 screws which secure the control panel to the dispenser. - Page 74 h. Remove the screw which secures the PCB (which controls the WD section) to the bracket, extract it and position it so as it does not interfere with the disassembling of the control panel. g. Remove the 2 screws which secure the control panel to the cross- member.
- Page 75 If problems with the door microswitch wiring should arise, detach the connector from the board. m. To extract the board unscrew the screws, release the hooks which fits it to the control panel. Attention: the screws which fit the board can be cross or torx (T20) screws.