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Electrolux TC2 Service Manual

Condenser dryer with electronic control system
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Spares Operations Italy
Corso Lino Zanussi, 30
I - 33080 PORCIA /PN (ITALY)
Fax: + 39 0434 394096
Edition: 2006-10 25
electronic control system
Publication No.
599 38 46-21
Condenser dryer with
ENV 06
TC2 – TC3 – TC4 – TC6
PLY – Siewierz (PL)



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  Summary of Contents for Electrolux TC2

  • Page 1 Publication No. Spares Operations Italy ENV 06 Corso Lino Zanussi, 30 Stylings I - 33080 PORCIA /PN (ITALY) 599 38 46-21 TC2 – TC3 – TC4 – TC6 Production: Fax: + 39 0434 394096 PLY – Siewierz (PL) Edition: 2006-10 25...
  • Page 2 SOI/ADL 1/57 599 38 46-21...
  • Page 3: Table Of Contents

    Access to diagnostics ......................... 27 Exiting the diagnostics system ......................28 Selector positions for diagnostics on appliances with styling TC2 – TC3 – TC4 ....... 29 Selector positions for diagnostics on appliances with styling TC6 ............ 31 ALARMS ............................. 32 10.1...
  • Page 4 Selector pin ..........................42 12.2.6 Selector knob ..........................42 12.2.7 Button springing ......................... 42 12.2.8 Button and visor unit on models TC2..................42 12.3 Removal of both cover and rear panel gives access to: ..............43 12.3.1 Heater unit..........................43 12.3.2 Removal of the left-hand side panel gives access to: ...............
  • Page 5: Purpose Of This Manual

    1 Purpose of this Manual The purpose of this Service Manual is to provide service engineers who already have the basic knowledge necessary to repair dryers with information concerning condenser dryers with electronic control systems ENV 06 with anti-crease system CRM produced in the factory of Siewierz (Poland). The control system features two PCBs: a main one featuring an integrated selector and LCD display, supplied already mounted and tested by the building factory and a control board of the CRM system.
  • Page 6: General Characteristics

    Depth: 58 cm Volt: 220-240 Power supply 50/60 No. pushbuttons 7⇒ (TC2) 6⇒ (TC3) 5⇒ (TC5) 3⇒ (TC6) ⇒ 3 + 1 bicolour on start button (red green) ⇒ 9 + 1 bicolour on start button (red green) No. LEDs ⇒...
  • Page 7: Control Panel

    4 CONTROL PANEL 4.1 Stylings With LCD With LED 4.2 Programme selector The 15-position programme selector onTC2 – TC3 – TC4 models and 21/25 positions on TC6 models (with incorporated ON/OFF switch) is built into the board. The symbols represent the different possibilities of drying the various fabrics COTTON SYNTHETICS SILK and WOOL.
  • Page 8: Buttons

    4.3 Buttons 4.3.1 Buttons on stylings with and without LCD 1. Configurable button 2. Configurable button 3. Configurable button 4. Configurable button 5. Configurable button 6. START/PAUSE button 7. Delayed start button 8. LCD 9. Programme selector SOI/ADL 7/57 599 38 46-21...
  • Page 9: Symbols On Stylings With Lcd

    4.4 Symbols on stylings with LCD The various icons and writings represented on the LCD display are displayed depending on the programme and on the programme phase being executed. Delayed start Drying phase Cooling phase Anti-crease phase Child protection (key lock) Delicate Buzzer Time-to-end / Alarm code...
  • Page 10: Humidity Level (On Some Models)

    MAX (the programme is prolonged by 6 minutes) 4.6 Child protection (on some models) By pushing simultaneously for 5 seconds the buttons 4 and 5 on TC2 models 3 and 4 on TC3 models the child protection is activated, all buttons are disabled and no modification is allowed.
  • Page 11: No Buzzer Button

    4.8 No buzzer button Option to be selected when the dryer is in selection mode (set-up). Press this button to exclude the buzzer: the exclusion is signalled by the switching on of the LED or of the icon, depending on the models. To reactivate the option, press the button again. Even if the buzzer is excluded, the alarm acoustic signalling remains active.
  • Page 12: Delayed Start Button

    Pressing this button it is possible to select, during the programme selection phase, a delayed start. On TC2 and TC3 models, the time varies up to 12 hours; the time is displayed in the Display. Every time the button is pressed, the time displayed...
  • Page 13: Adjusting The Level Of Conductivity (On Some Models)

    1. Turn the programme selector to switch on the appliance. 2. In selection mode (set-up), simultaneously press buttons 3 (Delicate) and 6 (start/pause). On TC2 and TC3 models Hold the buttons down till “C0” appears on the first 2 digits and the buzzer sounds (about 5 seconds). •...
  • Page 14: Warning Leds

    Display Conductivity Approximate value (μS/cm) < 300 Medium 300 - 600 High > 600 Normally, the appliance is factory-set to the highest level; however, certain models may be configured differently. Your local water supply company can give you information concerning the conductivity of the water in your area.
  • Page 15: Description Of Operation Of The Appliance

    5 Description of operation of the appliance When the selector is turned from OFF position to a drying programme, the icons relative to the drying phases light up and the START/PAUSE LED flashes with green light. During this phase the various options can be entered, and the corresponding LEDs will light. The lower right display shows the maximum time of drying cycle.
  • Page 16: Operation In Delayed Start Mode

    5.3 Operation in DELAYED START mode After selecting a drying cycle, press this button to enter the delayed start option (the selected time is indicated on the display). Every time the button is pressed the delay time increases, (for the first 2 hours the time increases of half an hour, then of an hour), the maximum time that can be selected is 20 hours.
  • Page 17: Structural And Functional Characteristics

    6 STRUCTURAL AND FUNCTIONAL CHARACTERISTICS 6.1 Drying circuit Version with canister in upper section Version with canister in lower section There are two air circuits inside the dryer: the first is a warm-air circuit, which is sealed within the appliance the second is an open cold-air circuit, which circulates air from the ambient through certain sections of the appliance.
  • Page 18: Structural Characteristics

    6.2 Structural characteristics Version with canister in upper section Version with canister in lower section 1 – Work top 1 – Work top 2 – Control panel support 2 – Control panel support 3 – Control panel 3 – Control panel 4 –...
  • Page 19: Drum

    6.3 Drum 1 – Front flange 2 – Drum housing 3 – Rear flange 4 – Drum lifters 5 - Plastic band The drum consists of two half-shells (front and rear) which are joined together by a wide plastic band (5). Separation of the drum into two parts allows the conductimetric sensor to determine the conductivity of the washing inside the drum.
  • Page 20: Hydraulic Circuit (Versions With Canister In Upper Section)

    6.5 Hydraulic circuit (versions with canister in upper section) 1 – Pump immersed in the sump 2 – Water fill hose to canister (Red) 3 – Overflow drain hose (Transparent) 4 – Canister The condensation water is ducted from the sump (1) to the tank (4) by the pump immersed in the sump via the hose (2).
  • Page 21: Electrical Components

    7 ELECTRICAL COMPONENTS 7.1 EDR2000 Electronic control The electronic control consists of a main electronic board fitted into a plastic container, fixed behind the control support. On models with LCD also the display board is mounted on this container. 1. Electronic board - casing 2.
  • Page 22: General Structure Of Board Memory

    7.1.2 General structure of board memory The system features an EEPROM, positioned externally to the microprocessor, which memorizes the configuration data, the description of the cycle, the status of the appliance in case of a power failure, and the alarms. μP Power Failure and machine status...
  • Page 23: Conductimetric Sensor

    7.2 Conductimetric sensor The conductimetric sensor consists of an electronic circuit (positioned inside the power board) and a section located externally to the board which consists of the wiring, two brushes (sensors positioned in contact with the tub shells) and the two tub shells themselves. The first brush positioned in contact with the front tub shell is Electronic circuit fitted to a hinged support on the duct, and is connected by the...
  • Page 24: Heater Unit

    7.4 Heater unit 1 – Filament heating element 2 - Ceramic supports 3 - Sheet metal casing 4 - TH1 Safety thermostat (automatic reset) 5 - TH2 Safety thermostat The heater unit consists of two wire heating elements with different powers. The two heating elements are fitted to ceramic supports, and the entire assembly is housed in a sheet metal casing.
  • Page 25: Motor

    7.6 Motor 1 – Fan (inclined blades for cold air circulation) 2 – Belt tensioner 3 – Motor 4 – Fan (straight blades for warm air circulation) The motor group consists of a belt tensioner (2), two fan blades (1 and 4) for circulating cold and warm air respectively, fitted to the motor shaft using bolts, and a single-phase asynchronous motor (3) featuring an overheating safety cut-out.
  • Page 26: Door Interlock

    7.8 Door interlock The door interlock is an electromechanical device which powers the electrical loads only when the door is correctly closed and the programme selector knob is turned (ON/OFF - closed). The interlock features a child safety device so that, in case of necessity, the door can be opened by pressing from inside the appliance.
  • Page 27: Electrical Circuit

    8 ELECTRICAL CIRCUIT SOI/ADL 26/57 599 38 46-21...
  • Page 28: Diagnostics System

    3. Wait until the LEDs light and the buzzer sounds, then simultaneously press the related buttons depending on the models. Important: this operation must be performed within 5 seconds! 4. Hold these buttons down until the LEDs begin to flash and the buzzer sounds. Styling TC2 Buttons 5-6 Styling TC3 Buttons 4-5...
  • Page 29: Exiting The Diagnostics System

    IMPORTANT! The alarms remain active during component diagnostics testing. If an alarm should be displayed, turn the programme selector to the first position to exit the alarm situation, and then continue the testing cycle (if the alarm is not repeated). In order to check for correct operation of the floating switch and the pump, the sump is filled with approximately 0.7 litres of water.
  • Page 30: Selector Positions For Diagnostics On Appliances With Styling Tc2 - Tc3 - Tc4

    9.3 Selector positions for diagnostics on appliances with styling TC2 – TC3 – TC4 When the various functions of the diagnostics mode are entered, the display shows on the right lower side some writings (ex. C7 - C5 etc.). They refer only to the selector codification and they have no relevance for the test being executed.
  • Page 31 Conductimetric sensor. This check has a duration of 4 sec. The phase/warning Control of the Door closed LEDs flash during this period. If the result conductimetric sensor is correct at the end, the LEDs switch off; when the circuit is open if not, the LEDs flash continuously Floating switch Door closed...
  • Page 32: Selector Positions For Diagnostics On Appliances With Styling Tc6

    9.4 Selector positions for diagnostics on appliances with styling TC6 Operating Selector position Components activated Function checked conditions All LEDs and digits light up in sequence When a button is pressed, the Operation of the user Always active corresponding LED lights and the buzzer interface sounds Door closed.
  • Page 33: Alarms

    To read the last alarm code memorized in the EEPROM of the electronic board: Access diagnostics mode (see paragraph). Turn the programme selector knob clockwise to the tenth position on models TC2 TC3 TC4 and to the eighth position on models TC6, paying attention not to stop in other positions, because error 32 could occur).
  • Page 34: Cancelling The Last Alarm Memorized

    After effecting repairs to the appliance, to check whether it is repeated during testing. 1. Turn the programme selector knob to the clockwise to the tenth position on models TC2 TC3 TC4 and to the eighth position on models TC6.
  • Page 35: Table Of Alarms

    10.5 Table of alarms Reset Alarm Description Possible fault Action/machine status command No alarm. Canister fill pump triac faulty. Wiring faulty; Electronic board faulty. Cycle interrupted. Triac "sensing" circuit for the canister fill pump faulty Electronic board faulty. Cycle interrupted. Conductimetric sensor signal frequency too high.
  • Page 36 Heater unit faulty; Wiring faulty; NTC sensor Insufficient heating (maximum time exceeded). incorrectly calibrated/out of position; Electronic Cycle paused. Start board faulty. Heater unit faulty; Wiring faulty; Electronic board Power relay to heater unit faulty. Forced cooling cycle. faulty. Disconnects the power supply to the heater unit.
  • Page 37 Cycle interrupted. If a stable power supply is Problems with the power supply Power frequency to appliance out of limits. restored before the time-out has elapsed, the (incorrect/interference). Electronic board faulty. cycle resumes. Problems with the power supply Power voltage too high. Cycle interrupted (incorrect/interference).
  • Page 38: No Access To Diagnostics Programme

    11 NO ACCESS TO DIAGNOSTICS PROGRAMME 11.1 No LEDs on the display board light Power cable and connection OK? Replace or repair the power cable and perform the diagnostics programme I Does the suppressor (incorporated in the main Replace the terminal block + suppressor and terminal block) function correctly? perform the diagnostics programme Remove the connector from the main terminal...
  • Page 39: Some Of The Leds On The Display Board Light

    11.2 Some of the LEDs on the display board light Do the pushbuttons move freely and correctly Repair the mechanical problems action the various buttons? (control panel, pushbuttons, supports, spindle) If you press the buttons, are the cycle options Replace main board and perform the actually selected? diagnostics cycle Warning!
  • Page 40: Accessibility To Components

    12 ACCESSIBILITY TO COMPONENTS If an electric screwdriver is used, ensure that the screws are not tightened excessively! 12.1 Door 12.1.1 Door • To remove the door, remove the screws (1) which secure it to the hinge. 12.1.2 Fluff filter fitted inside door •...
  • Page 41: Work Top

    12.2 Work top The following components can be accessed from the work top: Front brush Control panel Control panel support Electronic main board CRM electronic board • To remove the work top, first remove the screws which secure the top to the rear edge of the appliance.
  • Page 42: Control Panel Support And Control Panel

    12.2.3 Control panel support and Control panel • Remove the canister and unscrew the screw which fixes the water fill nozzle. • Move forward and remove the water fill nozzle. • Remove the screws which secure the control panel to the canister housing. •...
  • Page 43: Main Electronic Board

    12.2.7 Button springing The button springing remains hooked to the main board support by means of the lateral clips. 12.2.8 Button and visor unit on models TC2 After removing the main board it is possible to remove the visor and button unit.
  • Page 44: Removal Of Both Cover And Rear Panel Gives Access To

    12.3 Removal of both cover and rear panel gives access to: 12.3.1 Heater unit • Unscrew the screws (1) which secure the rear cover (plastic) in the centre and release the hooks (2) which fix it externally. • Unscrew all perimetral screws which secure the rear cover to the rear panel.
  • Page 45: Removal Of The Left-Hand Side Panel Gives Access To

    12.3.2 Removal of the left-hand side panel gives access to: The floating microswitch The float The pump The door interlock The steamer • Remove the work top. • Remove the screws which secure the side panel and remove the panel (as described before). The sump is located in the rear section of the base, and contains the pump, the floating microswitch and the float.
  • Page 46: Float

    12.3.4 Float The float is located inside the sump. To remove the float, turn it 90° clockwise as shown in the figure. Lift and rotate it outwards, and remove it. To re-fit the float, repeat this procedure in reverse sequence. 12.3.5 Pump The pump, which ducts the water from the sump to the canister (in the upper section) is located next to the...
  • Page 47: Door Interlock

    12.3.6 Door interlock Remove the two screws which secure the interlock to the front panel and remove the interlock. SOI/ADL 46/57 599 38 46-21...
  • Page 48: Removal Of The Right-Hand Side Panel Gives Access To

    12.4 Removal of the right-hand side panel gives access to: The motor capacitor The starting capacitor The hot air circulation fan The cold air circulation fan The drum rotation motor The drive belt tensioner The belt tensioner spring The NTC sensor •...
  • Page 49: Ntc Sensor

    12.4.2 NTC Sensor Remove the sensor from the seal Detach the connector 12.4.3 Rear air duct cover (hot air circulation) Remove the motor wiring from the anchor securing the wiring to the duct cover. Remove the three screws which secure it to the base and remove.
  • Page 50: Drum Rotation Motor

    12.4.5 Drum rotation motor After removing the covers from the two ducts, it is possible to access the drum rotation motor. Remove the belt tensioner spring. Remove the screws which secure the front and rear motor support brackets, rotate upwards and remove. Rotate the entire motor block (motor + two fans) towards the interior of the dryer, lift and remove (after removing the drive belt from the fan...
  • Page 51: Removal Of The Front Panel Gives Access To

    12.5 Removal of the front panel gives access to: The capacitor (heat exchanger) The flap door The plinth The door microswitch 12.5.1 Capacitor (Heat exchanger) • To open the flap door, push the button. • Turn the two red retainers downwards. •...
  • Page 52: Plinth

    12.5.3 Plinth • To remove the plinth: remove the screw which secures it to the front panel, move it towards the centre of the dryer and extract it. 12.5.4 Door microswitch Removed the plinth you can access the microbox: • Remove the screw which secures the microbox support to the front panel;...
  • Page 53: Removal Of The Rear Panel Gives Access To

    12.6 Removal of the rear panel gives access to: The rear brush The drive belt The drum The duct The duct rollers The front and rear seals 12.6.1 Rear brush (conductimetric sensor) • Remove the screw which secures the drum spindle cover.
  • Page 54: Duct

    12.6.5 Duct • Remove the work top. • Remove the rear panel. • Remove the drum. • Unscrew the screws which secure it to the hinges and hinge hole masking plates. • Extract the duct. From the duct, it is possible to access the lamp-holder and the relevant wiring (models with drum light). 12.6.6 Duct rollers •...
  • Page 55: Reversibility Of The Door

    13 REVERSIBILITY OF THE DOOR fig. A Proceed as follows: 1. Remove the screws which secure the hinges to the cabinet (fig.A.1). Remove the door. 2. Remove the screws which secure the hinge hole masking plates (fig.A-2) and fit the plates to the holes to which the hinges were previously fitted (fig.A-1).
  • Page 56 fig. F 18. Remove the hinges by removing the hinge screws (fig.F-6). 19. Remove the hinge hole masking caps (fig.F-7). 20. Remove the masking cap from door latch hole (fig.F- 21. Remove the door latch (fig.F-9). fig. G 22. Press the hinge hole masking caps into position (fig.G- 23.
  • Page 57: Final Testing Of Door Closure

    14 FINAL TESTING OF DOOR CLOSURE In order to check that the door closes correctly (i.e. in compliance with safety standards) after reversing, proceed as follows: a. Make a loop using string, wire etc. (1). a. Loop the string around the door latch and close the door.

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