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Summary of Contents for Electrolux WMD1050
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Page 1: Service Manual
SERVICE MANUAL Compact front loaded Washing Machines with EWM 1000 Compact front loaded Washing Mashines from Torsvik 599 518 544 EN with EWM 1000... -
Page 2: Table Of Contents
Table of Contents Panel, technical characteristics Program opions General characteristics Configuration Technical characteristics Operation principle Construction Rear of machine Front hatch Hatch locking switch Washing unit with outer drum Fast unbalance control system Water supply valve Drainage pump Heating element NTC-Thermistor Pressostat Motor... -
Page 3: Panel, Technical Characteristics
Panel Drawer Push button „start/hold“ Push button „short/very short“ Program cycle LEDs Push button „prewash“ Switch spin speed Push button ECO Program selector Push button „additional rinse“ Fassungsvermögen 3 kg Wasserdruck: 10 N/cm Gesamtanschlußwert 1700 W 100 N/cm Heizung 1400 W Gesamthöhe 67cm Laugenpumpe... -
Page 4: Program Opions
Program Options 015*0/4 ƒ$ ƒ$ ƒ$ &RWWRQ ƒ$ ƒ$ DPME ƒ$ ƒ$ 4ZOUIFUJD GBCSJDT ƒ$ ƒ$ DPME ƒ$ Ã Q %FMJDBUFT ƒ$ v ‡ Ã DPME ’ v ‡ 8PPM )BOE ƒ$ XBTIJOH ƒ$ ‡ DPME ƒ € 4PBL ‚... -
Page 5: General Characteristics
GENERAL CHARACTERISTICS The EWM 1000 electronic control system consists of a single PCB, which incorporates the power, control and display functions. The PCB is contained in a protective casing located behind the control panel support. Two basic versions of the PCB are produced: one with horizontal pushbuttons and one with vertical pushbuttons. -
Page 6: Configuration
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. Programme selector (S1) The selector features 16 positions and incorporates the ON/OFF switch. The various positions of the selector may be configured to perform different washing programmes;... -
Page 7: Pushbuttons And Leds
Pushbuttons and LEDs The functions of each button are defined by the configuration of the appliance. • Button 1: This pushbutton is connected to two LEDs (11 – 12) and, if used, may be configured for selection of one or two options; in the latter case, the two options cannot be selected at the same time. -
Page 8: Technical Characteristics
TECHNICAL CHARACTERISTICS Control system memory 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 9 EEPROM The EEPROM contains data of various types: Power failure, i.e. the information necessary to restart the appliance in the event of a power failure: Selected cycle and options Current phase and sub-phase Machine status, used to perform special cycles such as: Electrical test (used in the assembly line) Continuous cycles (used in the factory workshop) Machine configuration: the data contained in the EEPROM define the characteristics of the model and...
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Page 10: Operation Principle
OPERATION PRINCIPLE Traditional washing Operation Electronic module Detergent hatch Vent hose Level regulator Outer drum Hose water/detergent inlet Hose inlet valve/detergent hatch Inlet valve Water supply hose Pulley wheel Thermostat/NTC Heating element Drainage hose Motor Shock absorber Drainage pump Air chamber (air trap) Bottom hose The partides of soiling substances which are freed from the textile fibres by the chemical action of the detergent at the temperature of the washing water are re-moved by the flow of water through the fibres. -
Page 11: Construction
CONSTRUCTION Enclosure Upper frame Lower Frame - 11 -... -
Page 12: Rear Of Machine
Rear of machine Water supply hose Drainage pump Shock absorber Heating element, 1600 W. Belt Pressure chamber Motor Level regulator, Temperature sensor, NTC thermistor Rear counterweight - 12 - 11.2003 R.K. 599 518 544... -
Page 13: Front Hatch
Front hatch Hatch locking switch ELECTRICAL DIAGRAM - 13 -... -
Page 14: Washing Unit With Outer Drum
Washing unit with outer drum of CARBORAN® - 14 -... -
Page 15: Fast Unbalance Control System
“FUCS” (Fast Unbalance Control System) The control procedure for unbalanced loads is performed dynamically, before each spin cycle, as follows: An initial phase is performed in which the direction of rotation of the drum is alternated at 55 rpm. The phase begins at a speed of 55 rpm; the speed can never fall below this threshold, otherwise the check is repeated. -
Page 16: Water Supply Valve
Double water supply valve General characteristics Drainage pump Impeller Rotor Stator Pump housing 0-ring Function check - 16 -... -
Page 17: Heating Element
Heating Element General characteristics NTC-Thermistor (Temperature control) Table with resistance at different temperatures (3%) Temperature °C Resistance kOhm - 17 -... -
Page 18: Control Pressure Switch For Water Level In The Tub
Control pressure switch for water level in the tub Control of the water level is performed by a three-level pressure switch which functions as follows: • contact 11-14: anti-boiling safety level • contact 21-24: first level • contact 31-32: anti-overflow safety level (not all models) Pressure switch settings Full (mm) Reset (mm) -
Page 19: Motor
- 19 -... -
Page 20: Pressostat
SERVICE/ACCESSIBILITY Top plate Remove the 4 screws (A) at the rear edge of the plate. Draw the top plate backward Accessibility: Supply valve Level regulator, Pressostat Interference filter - 20 - 11.2003 R.K. 599 518 544... -
Page 21: Panel
Top panel Remove the two rear screws, push the top panel towards the rear and release from the cabinet. Control panel Remove the top panel. Remove the detergent drawer. Remove the screw which secure the front of the control panel to the support. Remove the upper screws. -
Page 22: Electronic Board
Electronic control board 1. PCB assembly + casing 2. Cover for connectors 3. Spindle of programme selector knob 4. Cover for connectors 5. Spindle of secondary selector knob 6. Pushbutton support panel 7. Pushbutton 8. LED diffuser a. Remove the control panel. b. -
Page 23: Hatch
Hatch Removal: Re-assembly: - 23 -... -
Page 24: Hatch Hinge
Hatch hinge Re-assembly: Note - 24 -... -
Page 25: Rear Ot Machine
Rear of machine Accessibility: Belt and pulley Electronic circuit board for speed control of motor Motor Removal of heating element Temperature sensor, NTC thermistor Removal of drainage pump Rubber bottom, (pin trap) Rear counterweight Pressure chamber - 25 -... -
Page 26: Drum Unit
Drurn unit Shock absorbers Removal of shock absorbers: Replacement: - 26 -... -
Page 27: Outer Drum With Drum Bearing
Outer drum with drum bearing - 27 -... -
Page 28: Diagnostics System
DIAGNOSTICS SYSTEM Access to diagnostics mode 1. Switch off the appliance. 2. Press and hold down START/PAUSE and any one of the option buttons simultaneously. 3. Holding down both buttons, switch the appliance on by turning the programme selector one position to the right (clockwise). -
Page 29: Diagnostics Phases
Diagnostics phases Irrespective of the type of PCB (i.e. with horizontal or vertical buttons) 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. -
Page 30: Alarms
ALARMS User alarm display Control of the alarm system can be configured; according to the model, therefore, some or all of the alarms may be displayed to the user. Normally, all alarms are displayed for the used, with the exception of: ♦... -
Page 31: Reading The Alarm Codes
Reading the alarm codes In order to read the last alarm code memorized in the EEPROM on the PCB: • Enter diagnostics mode. • Irrespective of the type of PCB and configuration, turn the programme selector clockwise to the tenth position. Displaying the alarm The alarm is displayed by a repeated flashing sequence of the two LEDs (0.4 seconds lit, 0.4 seconds off, with an interval of 2.5 seconds between sequences). -
Page 32: Rapid Reading Of Alarm Codes
Rapid reading of alarm codes The last alarm code can be displayed even if the programme selector is not in the tenth position (diagnostics) or if the appliance is in normal operating mode (e.g. during the execution of the washing programme): →... -
Page 33: Alarm Codes
Table of alarm codes Alarm Description Possible fault Action/machine status Reset Tap closed or mains pressure insufficient; drain hose incorrectly positioned; water fill solenoid faulty; leaks from the hydraulic Difficulties in water fill for washing Cycle paused Start circuit of the pressure switch; pressure switch faulty; wiring faulty;... - Page 34 Alarm Description Possible fault Action/machine status Reset NTC sensor faulty; heating element faulty; wiring faulty; PCB Insufficient heating during washing The heating phase is skipped faulty. NTC sensor faulty; heating element faulty; wiring faulty; PCB Safety drain cycle – Cycle stopped Overheating during washing faulty.
- Page 36 Key to circuit diagram Components in the appliance Components of the PCB 1. Electronic board DOOR_TY Interlock triac 2. Suppressor DRAIN_TY Drain pump triac 3. Door interlock Heating element relay 4. 1st level pressure switch Motor relay (clockwise rotation) 5. Anti-boiling pressure switch Motor relay (counter-clockwise rotation) 6.
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