Electrolux EDW 1000 Service Manual
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Electrolux EDW 1000 Service Manual

Electrolux EDW 1000 Service Manual

Free-standing / built-in
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ELECTROLUX ZANUSSI S.p.A.
Corso Lino Zanussi,30
I - 33080 PORCIA /PN (ITALY)
Tel +39 0434 394850
Fax +39 0434 394096
TSE-P
Edition: 16.02.2001
TSE-P 02.01 LF
Publication no.
599 34 60-32
EN/SERVICE/LF
1/35
SERVICE MANUAL
DISHWASHERS
DISHWASHERS
EDW 1000
(Mini_Tronic)
45 cm
Free-standing / Built-in
(FUNCTIONALITIES)
599 34 60-32

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  • Page 1 SERVICE MANUAL DISHWASHERS DISHWASHERS EDW 1000 (Mini_Tronic) Publication no. ELECTROLUX ZANUSSI S.p.A. Corso Lino Zanussi,30 I - 33080 PORCIA /PN (ITALY) 599 34 60-32 45 cm Tel +39 0434 394850 Free-standing / Built-in Fax +39 0434 394096 EN/SERVICE/LF (FUNCTIONALITIES) TSE-P Edition: 16.02.2001...
  • Page 2 2/35 TSE-P 02.01 LF 599 34 60-32...

  • Page 3: Table Of Contents

    CONTENTS INTRODUCTION General characteristics Field of application Electronic module Aesthetic characteristics Structural characteristics FUNCTIONAL CHARACTERISTICS Control panel Supplementary options Power failure Selection of programmes Selection of programmes with Delayed Start option SPECIFICATIONS FOR ACTUATORS AND SENSORS Components Sensors OPERATION OF THE MOTOR Wash Motor Washing/Drain functions Washing system...

  • Page 4: General Characteristics

    GENERAL GENERAL CHARACTERISTICS Power supply 220 - 240 V / 50 Hz (limits 187÷254 V) Total power absorbtion 2300 W (2100 W heating element) Water supply Min. / Max. Pressure: 5 ÷ 80 N/cm² Load capacity 12 Place settings Consumption (BIO AAB programme): Water 14 litres Energy...

  • Page 5: Aesthetic Characteristics

    AESTHETIC CHARACTERISTICS Control panel – VERTICAL version VARIANTS ON key on right ON key on left Control panel – HORIZONTAL version VARIANTS ON key on right ON key on left 5/35 TSE-P 02.01 LF 599 34 60-32...

  • Page 6: Structural Characteristics

    STRUCTURAL CHARACTERISTICS Structure: MODULAR 45 cm Functionality: EVOLUTION Version: FREE-STANDING / BUILT-IN Controls: KEYS LAYOUT OF CONTROLS [S0] - ON/OFF key [S1] … [S3] - PROGRAMME SELECTION keys [S4] … [S6] - PROGRAMME SELECTION and/or OPTION keys [LD1] … [LD3] - “PROGRAMME” INDICATOR LEDS [LD4] [LD5] [LD12] - “PROGRAMME”...

  • Page 7: Functional Characteristics

    FUNCTIONAL CHARACTERISTICS CONTROL PANEL ON/OFF KEY [S0] Switches the dishwasher ON and OFF. When the LED [LD0] lights, this means that the appliance is switched on. PROGRAMME AND OPTION KEYS [S1 S2 S3 S4 S5 S6] 2.1.1 Used to select a washing programme and the desired options (if featured). Each key corresponds to a specific programme or option (Delay, ½...

  • Page 8: Supplementary Options

    2.2 SUPPLEMENTARY OPTIONS (factory-set) 2.2.1 POSSIBLE OPTIONS: «DELAY» & «1/2 LOAD» (if featured) Only one option can be selected at a time («DELAY» or «1/2 LOAD»), never both. If featured, the option may be associated with keys [S4] or [S5] or [S6]. 2.2.1.1 «DELAYED START»...

  • Page 9: Selection Of Programmes

    SELECTION OF PROGRAMMES 2.4.1 SELECTING THE CYCLE (with the door closed) ® Switch the dishwasher ON by pressing [S0]; the “POWER ON” pilot lamp lights [LD0]. The SALT and RINSE-AID LEDs [LD13 LD14] may light. ® Press the key for the desired programme [S1 S2 S3 ..]. The LED corresponding to the selected programme lights [LD1 LD2 LD3 ...
  • Page 10 SELECTING A PROGRAMME WITH THE DELAYED START OPTION 2.5.1 PROGRAMME SELECTION (with the door closed) ® Press [S0] to switch the dishwasher on; the “POWER ON” LED [LD0] lights. ® Perform the procedure for selection of the programme / options as described in paragraph (2.4.1).

  • Page 11: Specifications For Actuators And Sensors

    SPECIFICATIONS FOR ACTUATORS AND SENSORS COMPONENTS TYPE OF COMPONENT POWER AVAILABLE TYPE OF CONTROL Max 250W Wash pump Triac & relay Max 100W Drain pump Triac & relay Max 2100W Washing heater Relay Max 10W Water fill solenoid Triac Max 10W Regeneration solenoid Triac Max 10W...

  • Page 12: Wash Motor

    OPERATION OF THE WASH / DRAIN MOTOR WASH MOTOR CHARACTERISTICS This dishwasher is fitted with a single-phase variable-speed asynchronous motor. A tachimetric sensor, fitted to the interior of the motor, constantly monitors the speed of the motor, which is transmitted to the electronic control system. MEASURING THE SPEED OF THE MOTOR The operation of the motor during the washing cycle is controlled by the electronic control system, which operates the motor at different speeds (fixed or variable).

  • Page 13: Washing System

    WASHING SYSTEM This appliance features the conventional washing system, in which the mechanical action is obtained by the rotation of the single motor. This drives the water into the hydraulic circuit and actions the two spray arms simultaneously. DEFINITION OF THE WASHING SYSTEM In order to optimize the washing programmes, this appliance offers two different washing systems;...

  • Page 14: Hydraulic Circuit

    4.5 5. HYDRAULIC CIRCUIT Anti-flooding device 11. Sump Anti-overflow device 12. Pressure switch Fill solenoid 13. Connector siphon for anti-overflow device Air-Break 14. Cutting valve sump Intake valve for regeneration chamber 15. Wash motor Regeneration chamber 16. Drain motor Vent valve 2 regeneration chamber 17.
  • Page 15 WATER FILL - FUNCTIONAL SYSTEM For dishwashers fitted with motors with tachimetric sensors (1.5 New Generation models), the electronic control system is designed to control the water fill by identifying the signals received from the pressure switch (which thus acts as a pressure sensor). The tachimetric sensor which signals the speed of the motor to the electronic control system is independent of the water fill level control function.
  • Page 16 WATER FILL CONTROL The quantity of water necessary to perform the washing cycle is determined exclusively by the closure of the contact on the pressure switch, which switches from "EMPTY" to "FULL". In order to assure that the hydraulic circuit is correctly balanced, this system ensures that, if the pressure switch re-opens on "EMPTY", the water is replenished until the pressure switch returns to "FULL".
  • Page 17 5.2.6 WATER FILL TIME During the entire duration of the fill phase (i.e. from sub-phase 5.2.1 to sub-phase 5.2.4), the solenoid valve may remain in the open position for a maximum overall time of 4 minutes. Within this period, the system detects whether the pressure switch signal has stabilized on "FULL".
  • Page 18 CONTROL OF DRAIN CYCLE When the washing cycle ends, the appliances passes to the drain phase. In this phase, in order to ensure that the hydraulic circuit is empty before the start of the subsequent phase (water fill), a control procedure is carried out at the end of the drain phase to check that the contact of the pressure switch is open on "EMPTY".
  • Page 19 SPECIAL REGENERATION CYCLE With the new water softening system, the “special regeneration” process is controlled electronically, and is subdivided into 5 levels as follows: REGENERATION VALUES FILL LEVEL INDICATION WASHING CYCLE WATER HARDNESS PHASES Led [ LD1 ] DEFINITION AUTONOMY REGENERATION Nº...
  • Page 20 «ACTIVE» DRYING SYSTEM The “Active Plus” drying system features a close integrated circuit with bidirectional convective movement ; air is drawn in from the exterior thus allowing the circulation of the inner warm air. DEFINITION OF THE SYSTEM The drying system is based on the natural circulation of the hot air produced during the hot rinse cycle, in which the steam (humid hot air) circulates slowly through two ducts, this activating the process of condensation.
  • Page 21 SAFETY FEATURES - CONTROLS - ALARMS Dishwashers with electronic control systems include a number of safety features which protect the components whether the appliance is switched off or in operation DEFINITION In the event of a fault that might affect the operation of the appliance, the electronic control system activates a specific safety device;...
  • Page 22 DISPLAYING ALARM CONDITIONS STORED IN MEMORY This procedure can be performed by service engineers only in order to check for any alarm conditions stored in the memory of the electronic control system. The procedure is accessed by pressing a combination of keys, and enables the service engineer to identify the fault (whether currently existing or occurring previously).
  • Page 23 DESCRIPTION OF SAFETY FEATURES AND ALARMS 7.4.1 WATER FILL TIME-OUT ALARM [A L 5] Led [LD9] This Time-out is activated only during the water fill phases. Ä The control system definitively switches off the fill solenoid valve. Ä Counting of time “T” starts when the solenoid valve opens and ends when the signal from the pressure switch stabilizes on “full”.
  • Page 24 7.4.3 ANTI-FLOODING CONTROL SYSTEM ALARM [A L 4] Leds [LD9] + [LD10] This control system is operative during the washing phases only, and not in the water fill phases, in which case is it connected to the safety device (see paragraph 7.4.1 “Water Fill Time-out”). Ä...
  • Page 25 7.4.6 MOTOR INOPERATIVE ALARM [A L 7] Leds [LD10] + [LD11] This control system is operative during the entire washing cycle. Ä Jamming of the motor is detected by the tachimetric sensor; this also makes it possible to check for a faulty tachimetric sensor using the following procedure. Ä...
  • Page 26 SUPPLEMENTARY SAFETY FEATURES 7.5.1 ANTI-PRESSURE SURGE Pressure surge sometimes occurs during the hot wash phases when operation of the motor is resumed after the cycle has been interrupted. Ä This phenomenon may result in excessive noise, rattling of the dishes and slight leakage of water from the door seal.
  • Page 27 ELECTRICAL FUNCTIONS CIRCUIT DIAGRAM TSE-P 02.01 LF 27/35 599 34 60-32...
  • Page 28 BASIC ELECTRICAL DIAGRAM TSE-P 02.01 LF 28/35 599 34 60-32...
  • Page 29 Plant Resin wash (option) Temperature Time after temperature Washing type Drain Resin wash (option) Temperature Time after temperature Temperature Time after temperature Washing type Drain Time Washing type Drain Time Washing type Drain Temperature Time after temperature Washing type Drain Regeneration (option) Drying time...
  • Page 30 SERVICING COMPONENT DIAGNOSTICS This test is used by service engineers only to check the efficiency of the main electrical components. To access the test procedure, it is necessary to press a combination of keys. Correct operation of the components to be tested can be checked rapidly. The component diagnostics procedure consists of 7 sequential phases:.
  • Page 31 FUNCTIONAL TESTING CYCLE The functional testing cycle is an abbreviated washing programme for use by service engineers only. The testing cycle enables the engineer to check all the functions which make up a traditional washing cycle (in effect, the test simulates a normal cycle). To access the test procedure, it is necessary to press a combination of keys.
  • Page 32 CHECKING THE EFFICIENCY OF THE COMPONENTS In order to facilitate testing of the components, a TEST PROCEDURE has been created showing the contacts to which the probes of the tester should be connected and the theoretical reading for each component. 9.3.1 PROCEDURE (after removing the door) Remove the modular connector from the control board, connect the probes of the tester to the...
  • Page 33 9.3.2 COMPONENT CONNECTION DIAGRAM TSE-P 02.01 LF 33/35 599 34 60-32...
  • Page 34 9.4 TABLE OF ALARM CODES In order to facilitate identification of an ALARM CONDITION indicated on the control panel and which causes one of the safety features to intervene, the possible causes for each alarm condition are listed in the table below together with suggested solutions. Note: The control board is unlikely to be the cause of an alarm condition, and...

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