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Electrolux EDR1000NEW Service Manual

Condenser dryer with electronic control system
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© ELECTROLUX ZANUSSI S.p.A.
Spares Operations Italy
Corso Lino Zanussi, 30
I - 33080 PORCIA /PN (ITALY)
Fax +39 0434 394096
Edition: 2003-12-04
SOI/DT 2003-12 dmm
electronic control system
Publication no.
599 36 20-08
EN
1
SERVICE MANUAL
DRYERS
Condenser dryer with
EDR1000NEW
(Nexus4)
Production:
ZP - Porcia (IT)
599 36 20-08

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  Summary of Contents for Electrolux EDR1000NEW

  • Page 1 SERVICE MANUAL DRYERS Condenser dryer with electronic control system © ELECTROLUX ZANUSSI S.p.A. Publication no. EDR1000NEW Spares Operations Italy Corso Lino Zanussi, 30 (Nexus4) I - 33080 PORCIA /PN (ITALY) 599 36 20-08 Fax +39 0434 394096 Production: ZP - Porcia (IT)
  • Page 2 SOI/DT 2003-12 dmm 2/50 599 36 20-08...
  • Page 3: Table Of Contents

    TABLE OF CONTENTS Purpose of this Manual........................5 IMPORTANT........................... 5 Safety ............................5 Installation..........................5 GENERAL CHARACTERISTICS ...................... 6 CONTROL PANEL .......................... 6 Four-pushbutton control panel ..................... 7 Five-pushbutton control panel...................... 7 Description of pushbuttons and LEDs................... 8 4.3.1 "NO BUZZER" pushbutton ....................8 4.3.2 "QUICK"...
  • Page 4 ALARMS............................ 27 10.1 Displaying the alarms to the user ....................27 10.1.1 Alarm display during normal operation ................27 10.2 Reading the alarm codes......................28 10.2.1 Displaying the alarm code ....................28 10.2.2 Example of display of alarm code ..................28 10.3 Rapid reading of the alarm codes ....................
  • Page 5: Purpose Of This Manual

    (mod. EDR1000NEW) produced in the factory in Porcia (Italy). The EDR1000NEW control system features a single PCB that incorporates the power and display functions and a maximum of 13 LEDs and 5 switches. This PCB can be used with conductimetric condenser models as well as vented dryers.
  • Page 6: General Characteristics

    3 GENERAL CHARACTERISTICS The EDR1000NEW control system consists of a single PCB which incorporates three functions: power, control display. This fitted conductimetric condenser dryers (i.e. those in which the steam is condensed inside the appliance). The PCB is inserted into a plastic casing, which is attached to the rear side of the control panel support.
  • Page 7: Four-Pushbutton Control Panel

    4.1 Four-pushbutton control panel The control panel - as well as the four pushbuttons - features ten LEDs and a programme selector. The options can be selected only after selecting a drying programme using the selector. In this situation, the phase LEDs light and LED L4 (start/pause) flashes.
  • Page 8: Description Of Pushbuttons And Leds

    4.3 Description of pushbuttons and LEDs 4.3.1 "NO BUZZER" pushbutton This option can be selected only when the dryer is in "selection" mode (set-up). Press this pushbutton to disactivate the buzzer function. The LED lights to indicate this selection. To re-activate the buzzer function, press the pushbutton again;...
  • Page 9: Cycle Phase" Leds

    4.3.6 "CYCLE PHASE" LEDs § Drying: lights during programme selection and when the dryer is performing the DRYING cycle. § Cooling: lights during programme selection if the programme selected includes a COOLING phase, and also when the dryer is performing the COOLING cycle. §...
  • Page 10: Options

    4.5 Options The table below lists the possible options for the drying programmes, their compatibility with other options and with the various cycles, and when they can be selected or modified. OPTIONS EXTRA-DRY CUPBOARD-DRY (EXTRA) CUPBOARD DRY (NORMAL) COTTON SLIGHTLY DAMP IRON-READY MACHINE IRONING EXTRA-DRY...
  • Page 11: Adjusting The Level Of Conductivity

    4.6 Adjusting the level of conductivity The conductivity of the water used to wash the fabrics varies from zone to zone. The conductimetric sensor is calibrated to a standard value: any major variations in the level of conductivity may affect the final drying result (i.e.
  • Page 12: Description Of Operation

    4.7 Description of operation 4.7.1 Selection phase When the selector is turned from OFF to a drying programme, the LEDs corresponding to the phases of the programme light, and the START/PAUSE LED begins to flash. During this phase ("selection" or "set-up" phase) the various options can be entered, and the corresponding LEDs will light.
  • Page 13: Operation In Delayed Start Mode

    4.7.4 Operation in DELAYED START mode This function is possible only on appliances with five-button control panels. The delay time option is configurable; therefore, certain dryers can be set to 1 -2-3 hours, some to 2-4-6 hours, the others to 3-6-9 hours. The delay time must be entered before pressing START/PAUSE.
  • Page 14: Demo Mode

    5 DEMO mode This is a demonstration function that can be used by the retailer to demonstrate the operation of the appliance to customers. The duration is about five minutes. When the appliance is in DEMO mode, the heating elements are not powered and the various phases are of abbreviated duration;...
  • Page 15: 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 In the sealed warm-air circuit, the air circulates inside the appliance:...
  • Page 16: 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 17: 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 18: 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 19: Electrical Components

    ELECTRICAL COMPONENTS 7.1 Electronic board The electronic board is housed inside a plastic casing and secured behind the control panel support. The board is available in two basic versions: one with four pushbuttons, the other with five. 1. Electronic board - casing 2.
  • Page 20: 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. Power Failure and µP machine status...
  • Page 21: 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 22: 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 23: 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 24: Electrical Circuit

    8 ELECTRICAL CIRCUIT 1. Suppressor Main switch (incorporated in selector) 2. Door interlock microswitch Floating microswitch 3. Drum light (certain models only) Heat exchanger microswitch 4. Heater unit 10. NTC 5. Drum rotation motor 11. Conductimetric sensor 6. Pump 12. Electronic board 8.1 Electrical operation The circuit diagram shows all the components of the dryer and their connections to the electronic board.
  • Page 25: Diagnostics System

    9 DIAGNOSTICS SYSTEM In diagnostics mode, it is possible to check the operation of the appliance and to read the alarm codes. 9.1 Access to diagnostics 1. The appliance must be switched OFF. 2. Press START/PAUSE and any one of the option buttons simultaneously. 3.
  • Page 26 Selector Operating Components activated Function checked position conditions Ø All the LEDs light in sequence. Operation of the user Ø When a button is pressed, the corresponding LED Always activated. interface. lights and the buzzer sounds. Ø For models with the canister in the lower section: If Door closed.
  • Page 27: Alarms

    10 ALARMS 10.1 Displaying the alarms to the user Operation of the alarms is configurable according to the model. Some or all of the alarms may be displayed to the user. Normally, all alarms except E44, E52, E63, E94, EB2 are displayed to the user. When an alarm condition occurs, the drying cycle may be interrupted or paused;...
  • Page 28: Reading The Alarm Codes

    10.2 Reading the alarm codes To read the last alarm code memorized in the EEPROM of the electronic board, proceed as follows: • Access diagnostics mode (see paragraph 9.1) • Turn the programme selector knob clockwise to the eleventh position. 10.2.1 Displaying the alarm code The alarm code is displayed by a repeated sequence of flashing of the ANTI-CREASE/END OF CYCLE LED (0.4 seconds on, 0.4...
  • Page 29: Rapid Reading Of The Alarm Codes

    10.3 Rapid reading of the alarm codes The last alarm code memorized can be displayed even if the appliance is in normal operating mode (e.g. while the drying programme is being performed): ð Press START/PAUSE and any one of the option buttons simultaneously for at least two seconds. The LEDs switch off, then display the flashing sequence that identifies the alarm code.
  • Page 30: Table Of Alarms

    10.6 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 31 Reset Alarm Description Possible fault Action/machine status command Error in the communication between electronic Wiring faulty. Electronic board faulty. Cycle interrupted board and control/display board Control/display board faulty. Incongruency in the communication between the Electronic board not compatible with the display Cycle interrupted electronic board and the display board.
  • Page 32: No Access To Diagnostics Programme

    11 NO ACCESS TO DIAGNOSTICS PROGRAMME 11.1 No LEDs on the electronic board light Replace or repair the power cable and perform Power cable and connection OK? the diagnostics programme Does the suppressor (incorporated in the main Replace the terminal block + suppressor and terminal block) function correctly? perform the diagnostics programme.
  • Page 33: Tables Of Drying Cycles

    The tables contain a description of the main drying cycles of EDR1000new/EDR2000 electronic boards without any options selected. In some cycles, the "degree of humidity" variable is indicated: this function is not featured on the EDR1000new board, and should not thus be taken into consideration 12.1 Key...
  • Page 34 As shown in the diagram below: Motor Heating elements Ø D1 is the delay time before the heater unit is switched on after commencement of direct motor rotation. Ø D2 is the interval between the moment at which the heater unit switches off and the moment at which the motor is paused before reversing the direction of rotation.
  • Page 35: Cotton Cycles

    12.2 Cotton cycles (No options selected) HEATING ELEMENTS Maximum Temp: Motor movements Phase Type of cycle Degree of humidity 1400W 1000W/600W Pump time (°C) DIR P2 Function D1 D2 D3 D4 Function D3 D4 EXTRA CUPBOARD DRY EXTRA CUPBOARD DRY CUPBOARD DRY Drying 1 210'...
  • Page 36: Synthetics Cycles

    12.4 SYNTHETICS cycles (No options selected) Heating elements Motor movements Degree of Maximum Temp: 1400W 1000W/600W Phase Type of cycle Pump humidity time (°C) DIR P2 Function Function EXTRA CUPBOARD Drying 1 150' 2" 240" 2" 15" SYNC DIR +1" -1" --- SYNC DIR +2"...
  • Page 37: Baby Cycle

    12.6 BABY cycle (No options selected) Heating elements Degree of Maximum Temp. Motor movements Phase 1400W 1000W/600W Pump humidity time (°C) DIR P2 Function Function Drying 1 CUPBOARD 150' 6" 90" 6" 8" SYNC DIR +2" -2" NO HEAT Level If selected humidity is "+"...
  • Page 38: Accessibility Of Components

    13 ACCESSIBILITY OF COMPONENTS If an electric screwdriver is used, ensure that the screws are not tightened excessively! 13.1 Door a. To remove the door, remove the screws which secure it to the hinge. 13.1.1 Fluff filter fitted inside door a.
  • Page 39: Control Panel Support Assembly

    13.2.2 Control panel support assembly a. In models with the canister in the upper section: remove the canister and remove the screws which secure the control panel to the canister support. b. Remove the screws which secure the control panel support to the cabinet.
  • Page 40: Canister Container (Models With Canister In Upper Section)

    13.2.7 Canister container (models with canister in upper section) a. Remove the screws which secure the canister container to the control panel and to the rear panel. b. Detach all the anchor tabs which secure it to the control panel support. 13.3 Removal of the cover and rear panel gives access to: 13.3.1 Heater unit a.
  • Page 41: Removal Of The Left-Hand Side Panel Gives Access To

    13.4 Removal of the left-hand side panel gives access to: The floating microswitch The float The pump (models with canister in upper section) The door interlock a. Remove the work top. b. Remove the screws which secure the side panel and remove the panel (see above).
  • Page 42: Float

    13.4.2 Float g. The float is located inside the sump. h. To remove the float, turn it 90° clockwise as shown in the figure. Lift the float and rotate outwards, and remove the float. To replace the float, repeat this procedure in reverse sequence. 13.4.3 Pump (models with canister in upper section) The pump, which ducts the water from the sump to the canister (in the upper section) is located next to the sump containing the float.
  • Page 43: Door Interlock

    13.5 Door interlock a. Remove the two screws which secure the interlock to the front panel and remove the interlock. 13.6 Removal of the right-hand side panel gives access to: The motor capacitor The hot air circulation fan The cold air circulation fan The drum rotation motor The drive belt tensioner The belt tensioner spring...
  • Page 44: Rear Air Duct Cover (Hot Air Circulation)

    13.6.3 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. 13.6.4 Rear air duct cover (cold air circulation) k.
  • Page 45: Removal Of The Front Panel Gives Access To

    13.7 Removal of the front panel gives access to: 13.7.1 The front panel a. Remove the screws which secure the panel to the front panel. b. Pull the sealing ring from its seat. c. To access the aperture button, remove the screws from inside the panel and release the three upper anchor tabs.
  • Page 46: Removal Of The Rear Panel Gives Access To

    13.9 Removal of the rear panel gives access to: The rear brush The drive belt The drum The air duct The idle pulley The front and rear seals 13.9.1 Rear brush (conductimetric sensor) a. Remove the screw which secures the drum spindle cover. b.
  • Page 47: Duct Rollers

    13.9.6 Duct rollers a. Remove the work top b. Remove the rear panel cover c. Remove the rear panel d. Remove the drum e. Remove the screws which secure them to the duct (2) 13.9.7 Front and rear seals a. Remove the work top. b.
  • Page 48: Reversibility Of The Door

    14 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 49 fig. F 18. Remove the hinges by removing the hinge screws (fig.F- 19. Remove the hinge hole masking caps (fig.F-7). 20. Remove the masking cap from door latch hole (fig.F-8). 21. Remove the door latch (fig.F-9). fig. G 22. Press the hinge hole masking caps into position (fig.G-7). 23.
  • Page 50: Final Testing Of Door Closure

    15 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). b. Loop the string around the door latch and close the door. Check the door aperture safety system as follows: c.