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Electrolux P6000 (Nexus) Series, Service Manual

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Electrolux P6000 (Nexus) Series Service Manual Download Page 73

SOI/DT 2002-05 eb

 73 

599 35 23-17  

8.9 Water 

distributor 

8.9.1 General 

characteristics 

The water distributor is used in models with MWM electronic control systems, and performs the following 
functions: 

ƒ

  It actions the levers in the detergent dispenser in order to duct water through the various compartments 

during the course of the washing cycle. 

ƒ

  Drawing power from the main PCB, it powers the following components:  

Ö

 

Cold water solenoid valve 

Ö

 

Circulation pump 

Ö

 

Drain pump 

 
 
 
 

 
1. PCB 
2. Water 

distributor 

3.  Detergent dispenser lever system 

 
 
 
The water distributor is actioned and controlled by the electronic control system. The motor of the distributor 
is powered via a triac on the main PCB. 
Before the motor is switched on, all the loads are disconnected from the power supply in order to reduce 
wear of the contacts. 
The motor is powered only for the time necessary to move the levers from one position to the next. 
During the washing programme, the distributor may perform several complete rotations in order to move to 
the positions necessary for the completion of the cycle. 
 

8.9.2 Operating 

principle 

 
 
 
 
 

1. Motor 

 

2. Gearwheel

 

3. Camme

 

4. Lever actioning arm

 

5. Brush contacts

 

6. Contact base

 

7. Casing

 

8. Cover

 

 
 
 
 
 
 
The motor (1), when powered, moves the camme (3) by means of the gears (2). The camme moves the arm 
that moves the lever actioning arm (4). 
The camme is fitted with brush contacts (5) which slide in contact with the copper tracks on the contact base 
(6). The contacts close in different ways (see diagram) depending on the position of the camme. 
The camme requires 15 seconds to perform one complete rotation. As the contact base is divided into 36 
sections, passage from one position to the next requires about 0.4 seconds. 
 
 

Summary of Contents for P6000 (Nexus) Series

Page 1: ...A Spares Operations Italy Corso Lino Zanussi 30 Publication number I 33080 PORCIA PN ITALY 599 35 23 17 Fax 39 0434 394096 Edition 2002 05 02 EN Washing machines Dryers P6000 Nexus Series Structural characteristics electrical components and accessibility Production ZP Porcia Italy ...

Page 2: ... 19 4 FRONT LOADING WASHING MACHINE 20 4 1 Traditional washing system 20 4 1 1 Recovery of detergent loss from the circulation hose 21 4 2 Drain circuit with ECO BALL ball valve 22 4 2 1 ECO BALL ball valve 22 4 2 2 Ball valve operating principle 23 4 3 JETSYSTEM washing system 24 4 3 1 JETSYSTEM hydraulic circuit first version 24 4 3 2 Jetsystem DIRECT SPRAY washing system 25 4 3 3 Circuit with h...

Page 3: ...2 Electrical symbols 61 8 2 3 Circuit diagrams 61 8 2 4 Checking for efficiency 61 8 3 Push button 62 8 3 1 General characteristics 62 8 3 2 Electrical symbol 62 8 3 3 Checking for efficiency 62 8 4 Door safety interlock traditional version 63 8 4 1 General characteristics 63 8 4 2 Electrical symbol 64 8 4 3 Circuit diagrams 64 8 4 4 Version with pneumatic device 64 8 4 5 Checking for efficiency 6...

Page 4: ...16 Bi metal thermostats 87 8 16 1 General characteristics 87 8 16 2 Operating principle 87 8 16 3 Electrical symbols 87 8 16 4 Manual reset thermostat 87 8 16 5 Checking for efficiency 87 8 17 Adjustable thermostat 88 8 17 1 General characteristics 88 8 17 2 Electrical symbol 88 8 17 3 Checking for efficiency 88 8 18 NTC temperature sensor 89 8 18 1 General characteristics 89 8 18 2 Electrical sym...

Page 5: ...rs 105 9 5 9 Damper 105 9 5 10 Drum pulley 105 9 5 11 Pressure chamber 105 9 6 Washing group Carboran inox 106 9 7 Drum and tub shells Carboran 106 9 7 1 Drum shaft bearings 106 9 7 2 Drum spider 106 9 7 3 Front counterweight Carboran tub 107 9 7 4 Rear counterweight Carboran tub 107 9 8 Components of stainless steel tubs 107 9 8 1 Tub spider 107 9 8 2 Drum shaft bearings 107 9 8 3 Tub support ban...

Page 6: ...heaters 116 9 12 7 Drying and safety thermostats 116 9 12 8 Temperature sensor Safety thermostat 116 9 12 9 Drying condenser 116 9 12 10 NTC sensor for control of drying times models with electronic control 116 10 TOOLS AND MATERIALS 117 10 1 Standard tools 117 10 2 Materials 118 ...

Page 7: ...e drum In addition spin tests without washing must be performed with care and for short periods only The front panel alone is not sufficient to maintain the balance of the appliance during spinning Certain metal components inside the appliance may have sharp edges Care should be taken to avoid cuts or abrasions Before laying the appliance on the floor always drain any water by removing the filter ...

Page 8: ...om the fabrics the dirt must not re deposit but must be held in suspension 4 Elimination of the dirt by means of draining and rinses 3 1 1 Results of the wash In order to obtain satisfactory washing results it is necessary to know the nature of the fibres the nature of the soiling the hardness of the water the products used for the wash detergent conditioners bleach etc and then to select the appr...

Page 9: ...Greater quantity of water Maximum temperature 40 C Minimum mechanical agitation short times Cellulose vegetable fibres Alkaline Base detergents Bleach if used Sodium hypochlorite NaClo High water temperature if OK for coloureds for linen if heavily soiled bleaching is preferable to washing at high temperatures Normal quantity of water Vigorous and prolonged mechanical action Spinning Artificial ch...

Page 10: ...h at 60 C Wash at 40 C Wash at 30 C Delicate hand wash DO NOT WASH BLEACH May be bleached in COLD water DO NOT BLEACH IRONING Hot iron max 200 C Medium iron max 150 C Cool iron max 110 C DO NOT IRON DRY CLEANING These symbols are used by the dry cleaner to identify the correct solvent and cleaning process for each garment to be dry cleaned DO NOT DRY CLEAN DRYING Can be dried in a tumble dryer DO ...

Page 11: ...The mechanical action of the appliance is produced by the combination of clockwise anti clockwise rotation of the drum which agitates the wash load in the washing solution This action tends to transfer the dirt from the fabrics to the washing solution water chemical products The mechanical action may be VIGOROUS or DELICATE Vigorous drum movement in alternating directions clockwise and anti clockw...

Page 12: ...he tap supplying the appliance ferrous residue will be deposited after only a few days This is one of the major obstacles to achieving a satisfactory washing result 3 6 2 Hardness of the water According to current conventions the hardness of the water refers to the concentration of calcium and magnesium ions In general a distinction is made between total hardness permanent hardness temporary hardn...

Page 13: ...abrics Increase of scale formation on the heating elements Hard water may cause the formation of incrustation on mechanical parts due to the presence of carbonates sulphates and alkaline terrous metal silicates This may also lead to a considerable reduction in the efficiency of the appliance since the reaction is endothermic in other words the increase in temperature favours the formation of carbo...

Page 14: ...facilitating the penetration of the washing solution into the fabrics to dissolve the dirt These agents disperse and emulsify the dirt and grease which are then held in suspension in the washing solution 3 SILICATES alkaline substances that improve the washing result protecting the fabrics or dishes and the appliance itself from corrosion Not aggressive to the skin 4 ANTI FOAM regulator the correc...

Page 15: ... dissociate the proteins improve the results of the wash considerably In addition enzymes vertically break down scale incrustations deposited on the appliance thus helping to detach the alkalis present in the detergent 2 STABILIZING AGENTS These are chemical products designed to control the uniformity of the bleach by stabilizing the washing solution 3 CMC CMC is used to hold the dirt in suspensio...

Page 16: ...tion it considerably reduces the capacity of the fabrics for absorption The hardness of the water not only reduces the washing power of the detergent but also reduces the softness resistance and whiteness of the fabrics washed When hardening agents such as Ca calcium and Mg magnesium react with certain components of the detergent the fabrics may become encrusted calcium and detergent deposits afte...

Page 17: ... treatment but always followed by a wash using detergent It may be used at all temperatures and during the wash together with detergent or poured directly onto the fabrics 3 7 6 Bleaching Bleaching is generally performed after the wash by hand or in a machine except in the case of wine tea or coffee stains etc Light sensitive stains tomato etc if appearing on the fabrics after the wash may disappe...

Page 18: ...CT temperature in the various phases of the washing cycle reduces the cohesion of the dirt facilitates the suspension of the dirt in the water facilitates the reaction of the alkalis swelling the fabrics so that the dirt is dissolved more easily High temperatures do not facilitate the removal of all types of dirt in fact blood egg yolk milk etc are more easily removed if washed in cold water if ho...

Page 19: ...ermediate spin if selected cotton linen only 2nd 3rd rinse 1 Water fill 2 Cold wash 3 Drain 4 Brief intermediate spin if selected cotton linen only Final rinse softener 1 Water fill to softener compartment 2 Cold wash Rinse hold 1 In cotton linen cycles the programme generally passes to the subsequent phase it stops with water in the tub rinse hold only if this function has been selected certain m...

Page 20: ...ombination of mechanical and chemical actions The solenoid valve ducts water through the detergent dispenser where it collects the detergent and passes into the tub The correct water level is controlled by one or more pressure switches The fabrics loaded into the drum are maintained in constant movement by the rotation of the drum The particles of dirt after being separated from the fibres of the ...

Page 21: ...er 2 Drum 3 Tube between the tub and the filter body 4 Drain filter 5 Circulation hose The water that passes through the re circulation circuit during the movement of the drum which acts as the impeller of a pump prevents detergent residue from depositing in the lower section of the hydraulic circuit filter body ...

Page 22: ...ssure chamber 22 Drain filter 23 Tub drain hose 24 Sphere eco ball 25 Door interlock 26 Porthole door 27 Door seal 28 Front counterweight 29 Drum 4 2 1 ECO BALL ball valve The Eco ball valve consists of a sphere contained inside the tube that connects the tub to the filter body Its purpose is to keep the washing water contained in the tub separate from the water in the drain circuit Advantages wit...

Page 23: ...ater from passing between the tub and the filter body To ensure correct operation of the system it is important to ensure that the drain hose is always correctly connected to the corresponding support on the rear panel at a height of at least 60 cm During the drain phases the suction effect created by the operation of the pump causes the sphere to move downwards thus allowing the water to flow thr...

Page 24: ...l is controlled by a pressure switch The water present in the bottom of the tub is circulated by a pump which ducts it to the fabrics through an aperture in the bellows seal or through an aperture in the upper section of the tub The mechanical action is provided by the bi directional rotation of the drum at low speed the wash load is continuously rotated inside the drum by three drum lifters 4 3 1...

Page 25: ... between filter body circulation pump 10 Circulation pump 11 Circulation tube 12 Door seal 13 Heating element 14 Thermostat 15 Drain pump 4 3 3 Circuit with heat exchanger certain older models only 1 Water fill solenoid 2 Detergent dispenser 3 Tube from detergent dispenser to tub 4 Tub 5 Drum 6 Drum lifter 7 Tube between tub and filter body 8 Filter body 9 Motor 10 Circulation pump 11 Circulation ...

Page 26: ...rsion large door 1 Water fill solenoid 2 Detergent dispenser 3 Tube from detergent dispenser to tub 4 Tub 5 Drum 6 Drain hose 7 Drain filter 8 Drain pump 9 Tube between tub and filter body 10 Circulation pump intake tube 11 Circulation pump 12 Circulation tube 13 Heating element ...

Page 27: ...id air generates a heat exchange and thus condenses the humidity The cooled dry air is ducted back to the fan again heated by the heating element and is then circulated back into the drum In cycles for SYNTHETIC fibres only one branch of the heating element is switched on half power In COTTON cycles both branches are powered full power The cooling water and condensation are drained off by the drai...

Page 28: ...ndenser 1 Fan 2 Fan motor 3 Drying heaters 4 Heating element casing 5 Duct 6 Door seal 7 Tub 8 Tube between tub and condenser 9 Drying condenser 10 Coupling 11 Water fill solenoid 12 Condenser fill hose and steam vent 13 Drain filter 14 Drain pump 5 3 1 HP version ...

Page 29: ...inet shell 4 Control panel support 5 Work top 6 Washing group 7 Suspension spring 8 Damper 9 Detergent dispenser 10 Drain filter body 1 Control panel 2 Front cabinet shell 3 Base 4 Main PCB 5 Tub 6 Pressure switch tubes 7 Pressure chamber 8 Tube between tub and filter body 9 Temperature sensor 10 Motor 11 Drive belt 12 Drum pulley 13 Rear counterweight 14 Cable clamp 15 Solenoid valve 16 Control p...

Page 30: ...net shells the filter body drain pump dampers and if featured the circulation pump and motor control system are all housed in the base 6 3 Control panel support 1 Timer 2 Adjustable thermostat 3 Push button 4 Detergent dispenser The control panel support in galvanized sheet metal is secured by a series of screws to the two cabinet shells Several components are fitted to the support timer adjustabl...

Page 31: ... of different versions that can be installed in any part of the home bathroom kitchen etc 32cm P66 42 45cm P61 52 54cm P65 57 60cm P62 without plinth 57 60cm RIM 57 60cm P63 with plinth 62 cm NEAT 6 4 1 Types of cabinet Types of cabinet and dimensions in cm HxWxD the height includes the 3cm top if featured P61soft 85x60x45 P63soft 85x60x57 P65soft 85x60x54 NEAT 85x60x62 P61 square 85x60x42 P63soft...

Page 32: ...SOI DT 2002 05 eb 32 599 35 23 17 P63 square P62 P65 soft P62 INPUT NEAT JETSY IZ RIM P63 soft large door ...

Page 33: ...ferently styled surrounds type of aperture various handles or button on control panel 6 5 1 Examples of porthole doors 1 Front surround 2 Door glass 3 Rear surround 4 Hinge 5 Masking plate 6 Handle 7 Hinge pin 8 Latch 9 Spring 10 Flange 6 5 1 1 Handle assembly 1 Front surround 2 Rear surround 3 Latch 4 Hinge pin 5 Latch spring 1 Handle 2 Hinge pin 3 Latch 4 Latch spring 5 Handle spring certain mod...

Page 34: ...ure On certain models the door can be opened by pressing a button on the control panel All models with the P66 32 cm cabinet are fitted with this feature 1 Door aperture button 2 Spring 3 Support 4 Wire 5 Lever 6 Door safety interlock 7 Latch aperture lever 8 Control panel support ...

Page 35: ...hor tabs and one or more screws The shape of the control panel depends on the styling and therefore the brand of the appliance Various types of control panels are available for each styling each fitted with a different number of buttons and knobs 6 6 1 Examples of control panels ALFA DELTA3 ELIPSE GAMMA MULTIPANEL AEG SIGMA ...

Page 36: ... springs The oscillation of the washing group is absorbed by the two dampers attached to the base Balancing of the washing group is provided by a front counterweight in cement and by a rear counterweight Some models are not fitted with the rear counterweight 6 7 1 Damper 1 Rubber vibration damper 2 Shaft 3 Shaft seals 4 Cylinder ...

Page 37: ...e G17 3 Kg 3 5 Kg 26 l G18 4 Kg 4 5 Kg 38 l G19 4 5 Kg 5 Kg 42 l G20 5 Kg 5 5 Kg 46 l G21 5 5 Kg 6 5 Kg 54 l STAINLESS STEEL not used for new models Load capacity cotton Type Rated Max Drum volume G10 4 Kg 4 5 Kg 38 l G11 4 5 Kg 5 Kg 42 l G12 5 Kg 5 5 Kg 46 l G13 5 5 Kg 6 5 Kg 54 l Spin speed Residual humidity Efficiency of spin 400 500 800 1000 1200 1400 1600 85 78 66 60 53 52 44 F E D C B B A CA...

Page 38: ...ont half shell 2 O ring 3 Rear half shell 4 Drum 5 Front counterweight 6 Counterweight anchor screw 7 Bellows seal 8 Ring securing the seal to the tub 9 Ring securing the seal to the cabinet 10 Rear counterweight 11 Washing group suspension springs 12 Damper 13 Damper hinge pin 14 Half shell anchor screws 6 7 3 1 Sup por t for bea ring s 1 Rear tub shell 2 Bearing support 3 Drum shaft 4 External b...

Page 39: ...nt flange 7 Front counterweight 8 Retaining ring 9 Ring securing the seal to the tub 10 Bellows seal 11 Ring securing the seal to the cabinet 12 Rear counterweight 13 Tub spider 14 Idle pulley 15 Motor Spider with two bearings Single bearing spider 1 Tub spider 2 Internal bearing 3 External bearing 4 Seal 1 Tub spider 2 Bearing 3 Seal 4 Ring ...

Page 40: ...crimped Three Carboran lifters are pressure fitted to the internal face of the drum The drum spider in aluminium alloy is secured to the edge of the drum by screws A brass bushing is pressure fitted to the drum shaft 1 Drum casing 2 Flange 3 Drum lifter 4 Drum spider 5 Screws 6 Drum shaft 7 Drum shaft bushing Drum spider ...

Page 41: ...king length based on the belt mounted on the pulleys which is calculated according to the following parameters D diameter of drum pulley de diameter of motor pulley I centre line distance between the pulleys For a given working length the belts which consist of different materials have a different degree of elasticity This means that when not fitted to the appliance their lengths may be different ...

Page 42: ...ve of the shape of the detergent dispenser the operating principle remains the same The water is ducted through the intake nozzle to the distributor According to the position of the timer camme during the washing cycle the distributor ensures that the water is ducted through only one channel of the feed duct so that the detergent is removed from the appropriate compartment only 1 Duct 2 Water inta...

Page 43: ...arm 17 Camme 18 Timer 19 Detergent entry tube 20 Clip 21 Steam venting tube 1 Fill hose 2 Washer 3 Cable clamp 4 Extension hose 5 Water fill solenoid cold 6 Water fill solenoid hot certain models only 7 Dispenser nozzle 8 Water distributor 9 Dispenser duct 10 Detergent dispenser 11 Detergent drawer 12 Siphon for additives 13 Spring 14 Distributor pin 15 Eccentric lever regulation camme 16 Lever ar...

Page 44: ...onsist of 3 or 4 compartments 1 Fill hose 2 Washer 3 Cable clamp 4 Solenoid valve support 5 Water fill solenoid cold 6 Water fill solenoid hot certain models only 7 Tube 8 Dispenser nozzle 9 Dispenser duct 10 Detergent dispenser 11 Steam venting tube 12 Detergent drawer 13 Siphon for additives 14 Detergent entry tube 15 Clip Water duct with four compartments 2 or 3 way water inlet nozzle 3 or 4 co...

Page 45: ...ompartment d is used to contain the conditioner which is introduced at the beginning of the final rinse Water fill to pre wash and bleach compartment Pre wash solenoid valve In EWM1000 models with 4 compartment detergent dispensers water is ducted into compartments a and c though not at the same time If the user selects the pre wash option water is ducted through compartments a and c at the beginn...

Page 46: ...ater fill solenoid hot some EWM2000 models only 7 Tube 8 Dispenser nozzle 9 Dispenser duct 10 Detergent dispenser 11 Steam venting tube 12 Detergent drawer 13 Siphon for additives 14 Detergent entry tube 15 Clip Version EM2000 drawer with 3 4 compartments EWM1000 drawer with 3 compartments Version EM1000 drawer with 4 compartments Water duct with four compartments 2 or 3 way water inlet nozzle 3 o...

Page 47: ...oduced at the beginning of the final rinse The pre wash and wash solenoid valves are actioned simultaneously Water fill to pre wash and bleach compartment Pre wash solenoid valve In models EWM2000 with 4 compartment detergent dispensers water is ducted into compartment c by a special solenoid valve at the beginning of the first rinse Water fill to pre wash and bleach compartment Pre wash solenoid ...

Page 48: ...stems 1 Tub 2 Tube between tub and filter body 3 Filter body 4 Drain pump 5 Drain hose 6 Circulation tube 1 Tube between tub and filter body 2 Pressure chamber 3 Filter body 4 Washer 5 Cap 6 Drain filter 7 Washer OR 8 Drain pump 9 Pump cover 10 Drain hose 11 Circulation tube 6 9 1 1 Drain filter The drain filter features a fine mesh which traps all objects The filter mesh must be cleaned frequentl...

Page 49: ... 3 Filter body 4 Drain filter 5 Washer 6 Filter knob 7 Tube between tub and filter body 8 Ball 9 Pressure chamber 6 9 2 1 Drain filter This drain system is self cleaning the filter traps only objects of a certain size The drain tube is used to empty the drain circuit The pump impeller can be inspected after unscrewing the filter ...

Page 50: ... between tub and pump 4 Drain pump 5 Drain hose In these appliances the drain circuit is self cleaning the siphon on the tube between the tub and the pump traps objects coins hair clips etc that might jam the pump 1 Tube between tub and drain pump 2 Pressure chamber 3 Drain pump 4 Drain hose 5 Pump cover 6 Coupling 7 Circulation tube ...

Page 51: ...4 Drain pump 1 Tube between tub and filter body 2 Pressure chamber 3 Filter body 4 Washer 5 Cap 6 Drain filter 7 Washer OR 8 Drain pump 9 Pump cover 10 Drain hose 11 Circulation pump 12 Circulation tube 13 Pump cover 6 9 4 1 Drain filter The drain filter features a fine mesh which traps all objects The filter mesh must be cleaned frequently ...

Page 52: ...Washer 5 Filter knob 6 Drain pump 7 Pump cover 8 Circulation pump intake tube 9 Circulation pump 10 Pump cover 11 Circulation tube 12 Pressure chamber 6 9 5 1 Drain filter This drain system is self cleaning the filter traps only objects of a certain size The drain tube is used to empty the drain circuit The pump impeller can be inspected after unscrewing the filter ...

Page 53: ...lation pump 6 Circulation tube 7 Return tube 8 Drain pump 1 Tube between tub and filter body 2 Pressure chamber 3 Filter body 4 Washer 5 Cap 6 Drain filter 7 Washer OR 8 Drain pump 9 Pump cover 10 Drain hose 11 Circulation pump 12 Circulation tube 13 Pump cover 14 Heat exchanger Heating element 15 Cover 6 9 6 1 Drain filter The drain filter features a fine mesh which traps all objects The filter m...

Page 54: ...ump 1 Tube between tub and filter body 2 Pressure chamber 3 Filter body 4 Washer 5 Cap 6 Drain filter 7 Washer OR 8 Drain pump 9 Pump cover 10 Drain hose 11 Circulation pump 12 Circulation tube 13 Pump cover 14 Drain tube 6 9 7 1 Drain filter The drain filter features a fine mesh which traps all objects The filter mesh must be cleaned frequently ...

Page 55: ...cts the air from the condenser to the casing containing the heating elements The fan is actioned by a drive belt attached to the fan motor 1 Fan 2 Motor 3 Drive belt 1 Fan cover 2 Fan duct 3 Spacer 4 Bearings 5 Seeger rings 6 Spindle fastening 7 Pulley 8 Fan 9 Nut 7 1 1 1 Delivery of the fan Ö standard version 55 m3 of air hr Ö High Performance version approximately 80m3 of air hr ...

Page 56: ...Heater element casing Heater element casing 2 Drying heaters 700 700W Drying heaters 700 700W Drying heaters 700 400 W Drying heaters 1000 1000W 3 NTC sensor for control of drying temperature Manual reset thermostat normally closed opens at 140 C NTC sensor for control of drying temperature 4 Drying thermostat normally closed opens at 106 C re closes at 90 C Full power thermostat only for applianc...

Page 57: ...mid air and the jet of cold water This condenses the humidity contained in the air Therefore the fan receives cold dry air which is then re circulated and again heated The cooling water and the condensation run down to the bottom of the tub to be discharged by the drain pump Type A condenser Type B condenser 1 Solenoid valve 2 Tube from solenoid valve to coupling 3 Coupling 4 Steam venting tube wa...

Page 58: ... the user can select automatic drying cycles In this case the drying time is determined according to the desired degree of humidity The electronic control system utilizes an NTC sensor fitted to the drying condenser to calculate the drying time Type A condenser 1 Drying condenser 2 NTC temperature sensor Type B condenser 1 Drying condenser 2 NTC temperature sensor ...

Page 59: ...nser This ensures that there is always water inside the siphon on the hose between the detergent dispenser and the tub thus preventing steam from being expelled from the tub and the detergent dispenser during drying 7 4 Duct 1 Duct 2 Screw 3 Bellows seal 4 Wire clamp The front duct directs the hot air coming from the heating elements directly to the interior of the drum passing through the bellows...

Page 60: ...J These consist of two components an electromechanical timer and a control PCB The control board is fitted to the base of the appliance and performs the following functions controls the washing programmes and the various options powers the timer motor powers and controls the drum rotation motor All the other components of the appliance are powered by the electromechanical timer Electronic control ...

Page 61: ...3 Circuit diagrams 8 2 4 Checking for efficiency THE APPLIANCE GENERATES RADIOFREQUENCY DISTURBANCE check the efficiency of the earth circuit THE APPLIANCE IS INOPERATIVE Use an ohmmeter to check that the component is not faulty across 1 3 about 0 Ω across 2 4 about 0 Ω THE ELECTRICAL SAFETY CUT OUTS INTERVENE use an ohmmeter capacitance meter to check that the component is not short circuited acr...

Page 62: ...lly closed switch Normally open switch Deviator 8 3 3 Checking for efficiency DOES NOT POWER THE APPLIANCE OR DOES NOT PERFORM THE SPECIFIC FUNCTION Use a tester to check for correct closure or aperture of the various contacts Press the button and check for switching of the contacts IMPOSSIBLE TO ACTION THE BUTTON Check that the spindle is not broken and that there are no other mechanical problems...

Page 63: ...rture levers when aperture is effected using the pushbutton The door closed pilot lamp may also be fitted using a special support 1 P T C 2 Bi metal strips 3 Contact in rest position 4 Contact closed The PTC is a ceramic resistor whose internal resistance increases with the temperature In this device the PTC is used to heat the bi metal strips The temperature deforms the two strips from A to B thu...

Page 64: ...ded blocking the lever in position 8 4 5 Checking for efficiency THE DOOR DOES NOT OPEN AT THE END OF THE CYCLE Operate the washing machine so that the door delay device is powered for about 30 seconds Switch off the appliance The door should be released within about 2 minutes If not the door interlock is faulty THE APPLIANCE DOES NOT START AND OR THE PORTHOLE DOOR IS NOT LOCKED Operate the applia...

Page 65: ...cts of the main switch are closed thus powering all the electrical components At the end of the programme the PCB sends two signals at an interval of 200 msec duration 20 msec the first signal moves the camme by another position though the latch is not released the second signal which is sent only if the system functions correctly moves the camme by a further position which causes the latch to ret...

Page 66: ...rves as a current limiter i e overheating cut out in the following cases If the triac on the main PCB is short circuited If the START PAUSE button is pressed repeatedly more than 10 times 8 5 3 Electrical symbol 8 5 4 Circuit diagram 1 Main switch 2 Solenoid valve 3 PTC protective solenoid valve cut out 4 Bi metal PTC 6 Connector ...

Page 67: ...us types of solenoid valve may be fitted solenoid valves with one inlet and one outlet solenoid valves with one inlet and two or three outlets In this case each section of the solenoid valve is controlled by a coil Cold water solenoid valve The cold water solenoid valve is fitted to all models and has a nominal delivery of about 6 5 9 5 litres per minute The water pressure must be between 3 and 10...

Page 68: ...brates noise from the coil but does not introduce water check the hydraulic circuit that supplies the solenoid valve tap turned off insufficient mains water pressure fill hose kinked or obstructed Solenoid valve jammed mechanically Replace the solenoid valve 2 The solenoid valve does not vibrate Check the coil winding 3500 4500 ohm if faulty replace the solenoid valve Solenoid valve jammed mechani...

Page 69: ...aches a pre determined level the membrane causes the contact strip to trip rapid action which switches the contact from empty to full Two regulation screws are fitted to the cover one for the level the other for the differential i e the point at which the strip returns to the empty position when the level of water in the tub decreases 8 7 2 Pressure switch hydraulic circuit 1 Pressure switches 2 T...

Page 70: ...n the diaphragm is reduced The diaphragm is pushed downwards by the counterspring until the switch resets i e returns to the empty position 8 7 4 Electrical symbol 1 Common contact 2 Contact closed on empty 4 Contact closed on full 8 7 5 Circuit diagram 11 21 31 Common contact 12 22 32 Empty contact 14 24 34 Full contact 8 7 6 Checking for efficiency Correct operation of the pressure switch depend...

Page 71: ...inciple 1 Air intake tube 2 Membrane 3 Coil 4 Electronic circuit oscillator 5 Core 6 Spring 7 Calibration spring 8 Connector The pressure switch is connected via tube to the pressure chamber When water is introduced into the tub this creates a pressure inside the hydraulic circuit that causes the membrane to change position This movement of the membrane modifies the position of the core inside the...

Page 72: ...systems Version for EWM2000 control systems 8 8 5 Checking for efficiency In the event of a fault in the pressure switch the operation of the appliance is immediately interrupted Where possible always read the alarm code Possible alarm codes caused by faults in the pressure switch MWM 1 5 E30 E32 E33 E36 EWM2000 E31 E32 E33 E34 E35 ...

Page 73: ...from the power supply in order to reduce wear of the contacts The motor is powered only for the time necessary to move the levers from one position to the next During the washing programme the distributor may perform several complete rotations in order to move to the positions necessary for the completion of the cycle 8 9 2 Operating principle 1 Motor 2 Gearwheel 3 Camme 4 Lever actioning arm 5 Br...

Page 74: ...SOI DT 2002 05 eb 74 599 35 23 17 A Pre wash B Wash C Bleach D Conditioner Contact base Position of lever 8 9 3 Electrical symbol 8 9 4 Contact closure diagram ...

Page 75: ... torque of single phase asynchronous motors is very low This is offset by adding a start up circuit which is phase shifted by 90 with respect to the running circuit This 90 current phase shift is provided by a capacitor which is connected in series to the start up winding This generates a rotary field that is sufficient to create the starting torque The stator consists of four windings Ö two high ...

Page 76: ...verse rotation is required the switching contact of the timer reverses the connection of the capacitor between the two windings thus reversing the direction of rotation Motor stopped Clockwise rotation Counter clockwise rotation 8 10 3 Electrical symbols Motor Capacitor 8 10 4 Circuit diagrams Motor with traditional connection Motor with suppressor connection A B Low speed windings C Common low sp...

Page 77: ...he windings If correct check the capacitor INOPERATIVE AT HIGH SPEED measure the resistance of the windings If correct check the capacitor INOPERATIVE AT HIGH SPEED AND LOW SPEED measure the resistance of the windings If correct check the capacitor IRREGULAR OPERATION motor overheating cut out operate the appliance until the problem occurs then measure the resistance of the windings POWER LINE CUT...

Page 78: ...2 Stator winding 3 Brush 4 Commutator 5 Rotor winding 6 Motor drive shaft 7 Pulley 8 Bearing 9 Tachymetric generator coil 10 Magnet 11 Spring 8 11 2 Operating principle The stator winding is connected in series to the rotor winding i e they are energized in series Each section of the rotor winding is connected to a pair of commutator plates also called commutators The electrical contact between th...

Page 79: ... A1 and A2 anodes takes place in the presence of the appropriate signals received by the gate G 8 11 2 2 Direction of motor rotation The direction of rotation of the motor depends on the way in which the rotor and stator are connected together This connection is performed by two of the timer contacts or by the relays on the PCB Clockwise rotation Counter clockwise rotation EC Electronic control sy...

Page 80: ...achymetric generator consisting of a magnet fitted to the shaft and a coil generates a voltage that depends on the speed of the rotor which is transmitted to the electronic control system All electronic control systems feature a system of protection which may be more or less refined to prevent operation of the motor in the event of a fault in the tachymetric generator M Electronic control system P...

Page 81: ...be checked SOLE motor Ω F H P motor Ω CE SE T motor Ω 171 196 3 4 Tachymetric generator winding 469 540 126 147 64 73 5 10 Stator winding full range 1 0 2 2 1 0 3 0 1 0 2 0 6 7 Overload cut out 0 0 0 8 9 Rotor winding 1 5 3 0 1 5 3 0 1 5 3 0 1 10 Stator winding half range if terminal 1 is present 0 5 1 0 0 5 1 5 0 5 1 0 excluding the resistance of the brushes Notes When checking the rotor winding ...

Page 82: ...s fitted only to certain models with electronic control and serves to convert the alternating current generated by the triac on the main PCB into direct current used to power the drum rotation motor 8 12 2 Electrical symbol 8 12 3 Circuit diagram L1 1 2 mH R1 68 KΩ R2 R3 100 Ω D1 25A 400 600V C1 C2 47nF ...

Page 83: ...el tubular casing Typical power ratings 1500W 1950W 2500W 3000W some models may be fitted with heating elements with different power ratings 1 Tubular casing 2 Connector 3 Filament heating element 4 Insulation 8 13 1 1 Version with NTC sensor In certain models with electronic control systems or hybrid timers the temperature sensor is fitted to the heating element 1 Heating element 2 NTC sensor ...

Page 84: ...OES NOT HEAT check that the heating element is not broken measure the resistance across the two terminals INTERVENTION OF ELECTRICAL SAFETY CUT OUTS use an ohmmeter to check that the heating element is not connected to mass and check for current leakage 40 MΩ WATER LEAKS check that the seal is correctly positioned and fitted VIBRATION OR METALLIC NOISE WHEN THE DRUM ROTATES check that the heating ...

Page 85: ...close contact with the heat exchanger The thermostat normally closed is calibrated to intervene at a temperature of 220 C and is connected in series to the heating element The external casing protects the heat exchanger unit 8 14 2 Electrical symbol 8 14 3 Checking for efficiency DOES NOT HEAT check that the heating element is not broken measure the resistance across the two terminals check that t...

Page 86: ...ing synthetic fabrics only one element is switched on half power to ensure delicate drying Typical electrical power ratings depending on the model 1000 1000W 700 700W 700 400W 550 550W 8 15 2 Electrical symbol 8 15 3 Checking for efficiency DOES NOT HEAT check that the heating element is not broken measure the resistance across the two terminals INTERVENTION OF ELECTRICAL SAFETY CUT OUTS use an oh...

Page 87: ...ts original position at a pre determined reset temperature 1 Steel capsule 2 Bi metal disk 3 Contact 4 Spring 5 High temperature lever 6 Low temperature lever 8 16 3 Electrical symbols Normally closed Normally open Manual reset 8 16 4 Manual reset thermostat In certain applications such as washer dryers manual reset safety thermostats are fitted In this case the bi metal element after tripping as ...

Page 88: ...lary tube expands against the membrane The movement of the membrane actions a device that opens or closes the contacts The spindle can be used to adjust the temperature at which switching of the contacts occurs 0 90 C 1 Bulb 2 Capillary 3 Regulation screw 4 Membrane 5 Rocker arm 6 Contact 8 17 2 Electrical symbol 8 17 3 Checking for efficiency 1 Use a tester to check that when cold the contacts ar...

Page 89: ...nnects the heating element Two types of sensor are produced their shapes are different but their characteristics are identical NTC sensors are used in electronic washer dryers to control the temperature and to calculate the drying time 1 Plastic casing 2 Metal capsule 3 NTC resistor 4 Terminals 1 NTC resistor 2 Metal capsule 3 Terminals 4 Plastic casing RESISTANCE Ω TEMPERATURE ºC Rated value Maxi...

Page 90: ...wise movements until the blockage is removed These pumps have a delivery of about 22 25 litres per minute and a maximum head of 90 cm 8 19 2 Electrical symbol 8 19 3 Checking for efficiency 1 Check that the impeller is not jammed and check for slippage 2 Check the resistance of the stator winding which should be approximately 150 200 Ω Important If caused to run empty i e disconnected from the hyd...

Page 91: ...els only 8 20 2 Electrical symbol 8 20 3 Checking for efficiency NO RE CIRCULATION POOR WASHING RESULTS 1 Check that the impeller is not jammed and check for slippage 2 Check the resistance of the stator winding which should be approximately 150 200 Ω WATER IN THE BASE AND ON THE FLOOR Check the seals on the duct thermostat holes Important If caused to run empty i e disconnected from the hydraulic...

Page 92: ...two parts 1 cotton linen drying both drying heaters are switched on alternately full power 2 drying synthetic fabrics only one of the drying heaters is switched on half power The drying phase which depends on the timer code generally lasts up to 120 minutes the last 10 12 minutes are dedicated to the cooling phase Important Do not attempt to turn the timer counter clockwise 8 21 2 Circuit diagram ...

Page 93: ... is of the squirrel cage type The velocity of the shaft is approximately 2 800 rpm at a voltage of 220 240V 50Hz 1 Rotor 2 Stator 3 Cooling fan 4 Pulley 8 22 2 Electrical symbol 8 22 3 Checking for efficiency FAN INOPERATIVE Check that the rotor is not jammed Check the pulley for slippage Measure the resistance of the stator EXCESSIVE NOISE Check for friction of the rotor Check the bearings Check ...

Page 94: ...l produced is accompanied by a wiring diagram and a basic circuit diagram 8 23 1 Wiring diagram An example of a wiring diagram is shown below The wiring diagram may be used to check for correct connection of the wiring connectors to the various electrical components ...

Page 95: ...n Part number Description 999 124 11 05 00 4 wiring 999 124 34 04 00 9 earth wiring 999 124 90 12 31 9 power cable 2000x3x1 5 999 124 93 31 50 3 wiring FLAT CABLE 999 124 96 35 10 1 wiring 999 132 02 00 00 7 wiring 999 132 02 01 01 3 wiring 999 132 02 02 01 1 wiring 999 132 02 03 00 1 wiring 999 132 02 11 20 2 wiring In order to identify the correct spare part use the wiring diagram to identify th...

Page 96: ...ic circuit diagram is shown below The circuit diagram should be used to check the appliance for correct operation in the diagnostics phase in conjunction with the timer diagram if present Wire Timer connector Internal connection to timer or component Timer motor Slow camme Fast camme ...

Page 97: ...fitted to the cabinet a Remove the work top b Unscrew the water fill hose from the solenoid valve c Detach the wiring connector d Detach the solenoid valve from the support 4 e Remove the hose clamp and detach the solenoid valve from the hose 9 1 4 Solenoid valve version fitted to detergent dispenser a Remove the work top b Unscrew the water fill hose from the extension solenoid valve c Lift the r...

Page 98: ...nsure that the knobs flanges are positioned correctly 9 2 2 Control panel versions for square cabinets a Remove the work top b Extract the detergent drawer 8 c Remove the screws which secure the control panel to the control panel support 9 d For models on which the knobs are external to the control panel release the knob cover by pressing the hole gently with a small screwdriver and turning the kn...

Page 99: ...the camme from the cross member 9 2 5 Detergent dispenser lever mechanism feeler arm a Remove the camme b Use a cross head screwdriver to turn the latch 90 c Detach the latch from the cross member and remove the feeler arm 9 2 6 Push button a Remove the control panel b Using a screwdriver widen the pushbutton anchor pin and remove the pushbutton c Remove the pushbutton Using pliers close the ancho...

Page 100: ...ard a Remove the control panel b Release the PCB casing from the control panel or remove the screws For further details refer to the specific Service Manuals for the various types of electronic control systems 9 3 3 Control panel input version a Remove the top 18 b Remove the detergent drawer c Remove the screws 19 d Detach the wiring connectors from the PCB 20 e Use a screwdriver to release the t...

Page 101: ...secure the door delay device to the front panel c Remove the door delay device 32 d Remove the cover from the door delay device e In models with button actioned aperture standard on P66 32cm models detach the wire which controls door aperture f Detach the wiring connectors 33 9 4 4 Bellows seal a Detach the retaining ring and the seal from the front panel b Remove the clamp and pull out the circul...

Page 102: ...abinet shell special care must be taken when moving the appliance When the shell is removed never lay the appliance on its sides or on its back since this might damage the internal structure 9 5 1 Motor a Remove the rear cabinet shell b Detach the wiring connectors c Remove the rear screws which secure the motor and loosen the front screws 38 d Loosen the motor from the supports 39 e Remove the fr...

Page 103: ...ction 9 2 7 for removal of the adjustable thermostat 42 Re assembling the NTC sensors version with long bulb The sensor must be replaced with the groove in the connector base facing downwards 43 9 5 4 Heating element a Remove the rear cabinet shell b Detach the drive belt from the pulleys c Detach the wiring connectors 42 d Remove the screw which secures the heating element flange e Push the nut o...

Page 104: ... rear j Press down the lower anchor tab which secures the dispenser to the front cross member 47 b k Lower the washing group and pull the dispenser out 9 5 6 Removing the duct from the dispenser a Remove the dispenser b Remove the lever regulation pin if present by pressing the two anchor tabs 48 c Release the clamp and the anchor tabs for the duct from the lower part of the dispenser 49 From insi...

Page 105: ... the same time remove the pin using pliers 52 c Remove the damper from the support When re assembling Ö Check that the pin is not damaged if so replace it Ö Check that the anchor tabs protrude correctly 9 5 10 Drum pulley a Remove the rear tub shell b Detach the drive belt from the pulley c Block the pulley in position and remove the screw d Remove the pulley 9 5 11 Pressure chamber a Remove the r...

Page 106: ...embly It is advisable to replace the sealing ring between the two tub shells whenever the tub is opened Connect the hoses to the tub in the correct positions 9 7 1 Drum shaft bearings If it is necessary to replace the bearings the engineer may replace the rear tub shell complete with bearings and sealing ring replace the bearings and the sealing ring only In the latter case a Remove the tub and th...

Page 107: ... to the tub c Push the drum shaft inwards as far as possible d Insert a small chisel between one of the lifters and the tub near the fixing holes and tap gently with a hammer If the lifter is secured by two screws use two chisels The chisels should be as thin as possible in order to avoid deformation of the edge of the tub e Use the chisel s to lever the lifter off the tub spider f Repeat this pro...

Page 108: ...ws seal to the tub flange b Position the counterweight on the flange ensuring that the reference points on the counterweight are in alignment with those on the bellows seal 59 c After replacing the drum position the flange counterweight assembly on the tub ensuring that the reference point on the counterweight is aligned with the indent in the support band 60 d Fit the retaining ring with the scre...

Page 109: ...ll the drum lifter towards the door of the appliance and detach from the drum 63 Re assembly G10 G11 G12 G18 G19 tubs a Check that the anchor tabs are parallel with the drum band b Insert the new lifter into the drum and push towards the rear of the appliance c Detach the hose connecting the tub to the filter body d Tighten the screw through the hole in the tub to secure the lifter to the drum 64 ...

Page 110: ...or silicone oil Check that the pump is correctly housed in its seat in the filter body 9 10 2 Drain pump models with P66 32cm cabinet Access to the pump is from the base of the appliance a Slightly raise the clamp and remove the pump from the base 67 b Detach the drain hose and the hose between the pump and the tub c Detach the wiring connectors 9 10 3 Drain pump models with RIM and P63 soft BD ca...

Page 111: ...rom the heat exchanger f Detach the wiring connector g Detach the thermostat bulb if present When re assembling ensure that the O ring is fitted to the filter body coupling hose or to the heat exchanger Lubricate with vaseline to facilitate insertion 9 10 6 Circulation pump New Jet version Access to the pump is from the base of the appliance a Remove the two screws which secure the pump to the bas...

Page 112: ...h the circulation pump without detaching the hoses c Disconnect the heat exchanger from the filter body Re assembly Ensure that the two seals O rings are correctly positioned on the heat exchanger Lubricate with vaseline to facilitate insertion 9 10 11 Base a Remove the rear cabinet shell b Remove the pins which secure the dampers to the base c Cut the fixing ties and detach the wiring d Release t...

Page 113: ...binet shell n Lift the cross member and slide the front cabinet shell from the base When re assembling a Replace the front cabinet shell and check that it is correctly inserted into the guides in the base b Place the appliance in the upright position taking care not to damage the structure c Replace the screws which secure the upper cross member to the front cabinet shell d Remove the screws which...

Page 114: ...ge and the metal ring b Replace the seal ensuring that the reference mark on the seal is aligned with the hole for the screw which secures the duct to the front panel 83 c Re connect the circulation hose if featured with the hose clamp 79 d When replacing the wire hose clamp ensure that it is correctly positioned in the groove in the seal then proceed as shown in the figure 84 e Lubricate the seal...

Page 115: ... on the coupling between the fan and the heating elements 89 Ö High Performance version remove the screw from the heating element casing 90 d Detach the fan from the drying condenser and from the cross member 91 e Detach the wiring connector from the motor and remove the fan assembly Re assembly For the High Performance version replace the sealing ring OR between the heating element casing and the...

Page 116: ...tioned in the support inside the casing 9 12 7 Drying and safety thermostats a Remove the heating element casing from the appliance b Remove the screws which secure the thermostat to the casing and remove the thermostat 9 12 8 Temperature sensor Safety thermostat a Remove the work top b Detach the connectors c Remove the screws which secure the component to the casing and remove the thermostat sen...

Page 117: ...f socket screws 7 8 10 13 15 17mm 4 Insulated scissors 5 Allen keys 5 6 mm 6 A battery operated power screwdriver may also be used 7 Torx screwdriver T30 T50 8 Torx T20H insert to unscrew Torx T20 screws with central pin also available as a tool under part number 5024880100 8 9 Adjustable wrench 10 Standard pliers 11 Narrow tipper pliers curved 12 Narrow tipped pliers straight 13 Cutter ...

Page 118: ...to detach the support band from stainless steel tubs When replacing the bearings use spacers of the appropriate diameter 10 2 Materials Ö soap and water Ö silicone oil Ö vaseline Ö thread anchoring liquid for screws Ö grease for drum shaft seal part number 5026 24 16 00 6 Ö grease for detergent dispenser distributor part number 5022 18 11 00 8 Ö plastic wiring ties ...

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