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Electrolux EWM1000, Service Manual

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Electrolux EWM1000 Service Manual Download Page 30

SOI/DT 2002-07 eb

 30 

599 35 36-69 

6.5  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 

(some models may not feature it)

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

6.5.1  Pressure switch settings  

 

 

Full (mm) 

Refill (mm) 

Anti-boiling level  

55

±

 3 

35

±

 3 

1st level 

75

±

 3 

55

±

 3 

Anti-overflow

 

level  

390

±

 15 

240

±

50 

 
 

6.5.2   Water fill without wash load  

The table below shows the average water fill to reach the anti-boiling level and the first level without wash 
load: data are gathered with empty drain circuit (if the drain circuit has not been emptied the water quantity 
is reduced by about 0,7 litres). 
 
 
 

 

G19 tub 

Anti-boiling level (litres) 

3,5 (3,4

÷

3,7) 

1st level (litres) 

5,6 (5,4

÷

6) 

 

Summary of Contents for EWM1000

Page 1: ...S p A Spares Operations Italy Corso Lino Zanussi 30 Publication no I 33080 PORCIA PN ITALY 599 35 36 69 Fax 39 0434 394096 Edition 2002 07 24 EN Washing machines with EWM1000 electronic control system Technical and functional characteristics Production ESA Alcala de Henares ES ...

Page 2: ...SOI DT 2002 07 eb 2 599 35 36 69 ...

Page 3: ... movement 21 5 7 3 E55 Vigorous movement 21 5 7 4 E50 Vigorous movement 21 5 7 5 PWL_1 wool Delicate movement 21 5 7 6 PWL_4 hand wash Delicate movement 21 5 7 7 C0 Cotton Linen Synthetics Intermediate Synthetics Pre wash Spin 22 5 7 8 C1 Cotton Linen Wash Spin 22 5 7 9 C2 Cotton Linen Intermediate Spin 22 5 7 10 COT_CF Cotton Linen Final Spin 22 5 7 11 SYN_CF Synthetics Intermediate and Final Spi...

Page 4: ...ostics mode 39 7 2 Exiting diagnostics mode 39 7 3 Diagnostics phases 40 8 ALARMS 41 8 1 Displaying the alarms to the user 41 8 1 1 Displaying the alarms during normal operation 41 8 2 Reading the alarm codes 42 8 2 1 Displaying the alarm 42 8 2 2 Examples of alarm displays 42 8 2 3 Operation of alarms during diagnostics 43 8 3 Notes concerning certain alarm codes 43 8 4 Rapid reading of alarm cod...

Page 5: ...ppliances fitted with the EWM 1000 electronic control system and produced in Alcala de Henares Spain The following topics are described general characteristics control panel and washing programmes technical and functional characteristics access to the electronic control system For detailed information concerning diagnostics and alarms refer to the following manual EWM1000 electronic control system...

Page 6: ...th horizontal pushbuttons max 15 for version with vertical pushbuttons Programme selector 16 positions with main switch incorporated in the PCB Secondary selector 6 positions for horizontal version only incorporated in the PCB Buzzer incorporated in the PCB some models Serial port DAAS EAP communication protocol up to 38400 baud Power supply 220 240V 50 60 Hz configurable in the factory Type of wa...

Page 7: ...e selector power switch incorporated in the programme selector version with 6 position secondary selector some models 3 1 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 ...

Page 8: ...e Normal Maximum the initial and maximum temperatures that can be selected for a specific washing programme Spin Normal Minimum Maximum Options Normal Possible Bleach Economy energy label Stains Short Very short Reduced spin speed Night cycle Half load Easy iron Rinse hold Extra rinse Pre wash Programme phases Pre wash Wash Rinses Spin Economy Delayed start 3 1 2 Secondary selector S2 Certain mode...

Page 9: ...n with button 5 These LEDs can be configured too the END OF CYCLE indicator is featured on all models Indicators Pre wash Lights during selection mode if the programme includes the pre wash phase and during the execution of the pre wash Wash Lights during selection mode if the programme includes the wash phase and during the execution of the wash Pre wash Wash Lights during selection mode if the p...

Page 10: ...rpm 90 87 82 90E 67 60 60 60E 53 50 40E 44 40 40 30 30 Cotton cold 20 3 450 650 850 1000 60 60 60 50E 42 50 50 40 40 30 30 Synthetics cold 20 3 Max 900 40 40 30 30 Delicates cold 20 3 450 700 40 38 30 33 Wool cold 20 3 Max 1000 40 38 30 33 Hand wash cold 20 3 Max 1000 Soak 30 20 Rinses 3 Max 1000 Delicate rinses 3 Max 700 Softener 1 Max 1000 Drain Spin Max 1000 Delicate spin Max 700 Mini 30 2 Max ...

Page 11: ...0 C x x x x x x x x x x x 50 C x x x x x x x x x x x 40 C x x x x x x x x x x 30 C x x x x x x x x x SINTHETICS Cold x x x x x x x x x 30 C x x x x MINI Programme Cold x x x x 40 C x x x x x x x 30 C x x x x x x x Delicates Cold x x x x x x x 40 C x x x x 30 C x x x x WOOL HAND WASH Cold x x x x SOAK RINSES x x x x x x x SOFTENER x x x x x DRAIN Compatibility with the PROGRAMMES SPIN x Rinse hold ...

Page 12: ...timized for small loads Very short Modifies the structure of COTTON SYNTHETICS and DELICATES programmes in order to obtain very short washing times optimized for small or slightly dirty loads Reduces the number of rinses one less Increases the water level in the remaining two rinses Economy Energy label Modifies the structure of COTTON 40 60 and SYNTHETICS 50 60 programmes in order to reduce energ...

Page 13: ...In COTTON cycles adds three rinses In SYNTHETICS cycles adds one rinse Delayed start time Adds a pause before the start of the programme The delay time is shown by the corresponding LEDs To start the cycle immediately after having selected a delayed start press START PAUSE cancel the delay time by pressing the appropriate button and then press START PAUSE again Examples of delay time buttons 4 3 1...

Page 14: ... 0 0 6 Last position Rinse hold Rinse hold Rinse hold Rinse hold Rinse hold 6 position selector with NO SPIN rpm 1 Max spin speed 600 700 800 900 1000 2 550 600 700 800 900 3 500 500 600 700 700 4 450 450 500 600 600 5 400 400 400 500 500 6 Last position 0 0 0 0 0 Button with 5 LEDs 1 Max spin speed 600 700 800 900 1000 2 550 600 700 800 900 3 500 500 600 700 700 4 450 450 500 500 500 5 Last value...

Page 15: ...Night cycle Easy iron No spin Half load Night cycle Easy iron No spin Extra rinse Half load Night cycle Easy iron No spin Normal Short 3 2 5 6 6 6 4 8 5 7 Eco Energy label 3 2 5 6 6 6 4 8 5 7 COTTON Very short 2 2 4 5 5 5 3 7 4 6 Normal Short 3 5 4 4 4 6 Eco Energy label 3 5 4 4 4 6 SYNTHETICS Very short 2 4 3 3 3 5 Normal 3 5 3 3 5 PROGRAMMES DELICATES Very short 2 4 2 2 4 4 5 Selecting DEMO mode...

Page 16: ...m Wash 22 Drain 20 No Mov 23 Cotton water fill P1 24 Movement 5 N 55 from full Refill P1 Qn1 25 Drain VAE 15 No Mov 26 Drain spin 5 C2 450 650 850 1000 rpm 1st rinse 27 Drain 20 No Mov 28 Cotton water fill P1 Qn2 29 Movement 5 N 55 from full Refill P1 Qne 30 Drain VAE 15 No Mov 31 Drain spin 5 C2 2nd rinse 32 Drain 20 No Mov 450 650 850 1000 rpm 33 Cotton water fill P1 34 Movement 30 35 Time water...

Page 17: ...1 Drain spin 5 C2 450 650 850 1000 rpm 1st rinse 22 Drain 20 No Mov 23 Cotton water fill P1 if C1 850 rpm P1 Qn2 if C1 850 rpm 24 Movement 5 N 55 from full Refill P1 Qne 25 Drain VAE 15 No Mov 26 Drain spin 5 C2 450 650 850 1000 rpm 2nd rinses 27 Drain 20 No Mov 28 Cotton water fill P1 29 Movement 30 30 Time water fill Qn3 31 Movement 8 N 55 from full Refill P1 32 Drain VAE 14 No Mov 33 Drain spin...

Page 18: ...ater fill P1 Qyr1 23 Movement 3 E55 from full Refill P1 24 Drain VAE No Mov 1st rinse 25 Drain 1 D55 26 Water fill P1 Qyr2 27 Movement 3 E 55 from full Refill P1 28 Drain VAE No Mov 29 Drain 1 D55 2nd rinse 30 Drain spin 4 C0 300 450 650 rpm 31 Water fill P1 32 Movement 30 33 Time water fill Qyr3 34 Movement 5 E55 from full Refill P1 35 Drain VAE 14 No Mov 36 Drain spin 4 5 SYN_CF max 900 rpm Rins...

Page 19: ...fill P1 Qrd1 D55from full 20 Movement 5 D55 Refill P1 21 Drain VAE No Mov 2nd rinse 22 Drain 1 D55 23 Water fill P1 24 Movement 30 25 Time water fill Qrd2 26 Movement 3 D55 from full Refill P1 27 Drain VAE No Mov 28 Drain spin 3 8 DEL_CF 450 700 rpm Rinses Last rinse softener 29 Untangling 1 N55 SW W1D00102 Notes P1 time needed to 1st level water fill time water fills are changeable and calculated...

Page 20: ...1 Qwh 2 Cold wash 1 Refill P1 Qwh1 3 Heating T 20 33 38 4 Maintenance 14 Pwl_4 30 33 35 38 Wash 5 Drain VAE 14 No Mov 6 Water fill P1 No Mov 7 Time water fill Qwor1 8 Movement 3 Refill P1 1st rinse 9 Drain VAE 14 Pwl_4 10 Water fill P1 No Mov 11 Time water fill Qwor1 12 Movement 3 Pwl_4 Refill P1 2nd rinse 13 Drain VAE 14 No Mov 14 Water fill P1 No Mov 15 Movement 30 16 Time water fill Qwor2 17 Mo...

Page 21: ... 12 0 4 55 5 7 2 N55 Normal movement N 55 sec rpm 8 0 8 55 8 0 8 55 5 7 3 E55 Vigorous movement E 55 sec rpm 3 0 10 55 3 0 10 55 5 7 4 E50 Vigorous movement E 55 sec rpm 3 0 10 50 3 0 10 50 5 7 5 PWL_1 wool Delicate movement PWL_1 sec rpm 40 0 1 35 40 0 1 35 5 7 6 PWL_4 hand wash Delicate movement PWL_4 sec rpm 57 0 1 35 57 0 1 35 ...

Page 22: ...5 AF 850 10 AF 850 60 no 5 7 9 C2 Cotton Linen Intermediate Spin C2 intermediate rpm sec AF FUCS x no FUCS imp x no FUCS x no 450 30 AF 650 20 AF 850 10 AF 1000 60 no 5 7 10 COT_CF Cotton Linen Final Spin COT_CF cotton final rpm sec AF FUCS x no FUCS imp x no FUCS x no 450 30 AF 650 15 AF 850 5 AF 1000 95 no 1000 75 no 1000 110 no 5 7 11 SYN_CF Synthetics Intermediate and Final Spin SYN_CF interme...

Page 23: ...FUCS imp x no FUCS x no 450 10 AF 650 10 AF 850 10 AF 1000 10 no 1000 10 no 1000 20 no 5 7 15 Easy iron Impulse Spin Cycle EASY_IRON_IMP rpm sec AF FUCS x no 450 0 no FUCS x no 650 0 AF FUCS x no 800 0 AF FUCS x no 900 0 AF 5 7 16 CSR Intermediate Spin for Cotton Linen with Extra rinse option CSR rpm sec AF FUCS x no FUCS imp x no FUCS x no 450 120 AF Notes AF indicates if antifoam function is act...

Page 24: ... not energy label 1 0 Qc Cooling water fill 3 5 Qs Stains compartment water fill 1 0 Qk Water fill for short cycle rinses 12 0 Qn1 Normal water fill for 1st rinse 4 5 Qn2 Normal water fill for other rinses 6 5 Qn3 Normal water fill for last rinse 9 5 Qne Normal water fill for rinse of energy label cycle 4 5 Qsr1 Water fill for extra rinse and night cycle if no spin has been previously performed 8 ...

Page 25: ... fill P1 Qwe Refill water A Movement for 5 minutes B Movement for 35 minutes T1 Heating up to 53 C 1 1st rinse 2 2nd rinse 3 3rd rinse C1 C1 wash spin C2 C2 intermediate spin CF CF final spin 5 10 Profiles of COTTON 60 cycles Cycle A Economy or energy label B Normal consumer C Short Daily D Very short ...

Page 26: ... Ö Execution of the washing programme In normal production appliances the ROM cannot be modified 6 1 3 RAM The RAM Random Access Memory contains the variables i e all the dynamic information used during execution of the programme Ö Motor speed Ö Water temperature Ö Alarms Ö Cycle selected Ö Machine status The RAM is cancelled when the power supply is disconnected power failure or appliance switche...

Page 27: ...drawer 3 or 4 compartments Final spin speed 600 1400 rpm Ö Identification of the appliance Prod N ELC Serial number Ö Configuration of the user interface Programmes of main selector Function of secondary selector if featured Number and functions of buttons Functions of the LEDs Operation of the buzzer Ö Washing cycle tables Each washing cycle consists of a series of phases steps the steps are the ...

Page 28: ...rogramme is started by pressing the START PAUSE button the bimetal PTC contacts 3 5 is powered by the triac on the PCB after 2 4 seconds this closes the switch 5 4 which powers the electrical components of the appliance only if the door is closed The door interlock prevents the door opening while the appliance is in operation At the end of the washing programme the PCB disconnects the device from ...

Page 29: ...he components in the appliance At the end of the programme the PCB transmits two 20 msec signals at an interval of 200 msec the first signal causes the cam turn one more position however without releasing the pawl the second signal which is transmitted only if the system functions correctly causes the cam turn one further position In this way the pawl retracts to its housing and the door interlock...

Page 30: ... may not feature it 6 5 1 Pressure switch settings Full mm Refill mm Anti boiling level 55 3 35 3 1st level 75 3 55 3 Anti overflow level 390 15 240 50 6 5 2 Water fill without wash load The table below shows the average water fill to reach the anti boiling level and the first level without wash load data are gathered with empty drain circuit if the drain circuit has not been emptied the water qua...

Page 31: ...ime T1 T2 Volume Volume of the tub between the two levels anti boiling and 1st level T1 T2 The time that elapses between the closure of the anti boiling and 1st level contacts on FULL Water fill diagram ELT solenoid valve P1 1st level AB anti boiling level rpm drum rotation speed Water in water fill Phase A The phase during which the initial fill takes place 1 Water fill until the anti boiling pre...

Page 32: ...am venting hose some models 9 Detergent drawer 10 Siphon for additives 11 Detergent intake tub 12 Coupling clamps Version with three compartments Version with four compartments 4 compartment duct Two way water intake nozzle 3 compartment detergent drawer 4 compartment duct with fork Two way water intake nozzle 4 compartment detergent drawer 3 4 compartments 2 way solenoid valve ...

Page 33: ...els compartment b contains the detergent which is introduced at the beginning of the washing phase Water fill to softener compartment pre wash wash solenoids In all models compartment d contains the softener which is introduced at the beginning of the final rinse Water fill to pre wash and bleach compartments pre wash solenoid In models with four compartments water is ducted through compartments a...

Page 34: ...h closes on EMPTY after which the pump is actioned for a brief period or passes to the subsequent phase 6 9 Anti overflow device 1 PCB 8 Drain pump 9 Anti overflow pressure switch HV1_S Anti overflow level sensor The third pressure switch level if featured is used as an anti overflow safety device if the pressure switch contact should open in the FULL position the PCB actions the drain pump until ...

Page 35: ...powered by a relay on the PCB via the contacts of the pressure switch when closed on FULL The temperature is controlled by the PCB by means of a NTC temperature sensor 6 10 1 Heating element 1 Heating element 1950W 2 NTC sensor 6 10 2 NTC temperature sensor 1 NTC resistor 2 Metallic capsule 3 Terminals 4 Plastic casing RESISTANCE Ω TEMPERATURE ºC Nominal value Maximum value Minimum value 20 60 80 ...

Page 36: ...e microprocessor depending on the software configuration may perform the anti foam control procedure if featured and the anti unbalancing control procedure 6 12 Anti foam control system The anti foam control procedure if featured is performed via the anti boiling pressure switch AB Spin phase without foam Spin phase with little foam Spin with little foam if the contact of AB pressure switch closes...

Page 37: ... wash load is achieved the appliance performs a 470 rpm spin pulse preceded by 5 seconds at 100 rpm and followed by phase 1 otherwise after a maximum of 60 seconds the cycle passes directly to phase 1 Phase 1 The first phase has a different pre set unbalancing threshold if correct balancing is achieved the appliance performs the spin cycle preceded by 5 seconds at 100 rpm If not after a maximum of...

Page 38: ...UCS phase 2 FUCS phase 3 with spin pulse FUCS phase 1 FUCS phase 2 FUCS phase 3 Normal spin Balancing after the third phase Reduced speed spin FUCS phase 0 FUCS phase 1 FUCS phase 2 FUCS phase 3 with spin pulse FUCS phase 1 FUCS phase 2 FUCS phase 3 Reduced speed spin Unbalancing after the third phase FUCS phase 0 FUCS phase 1 FUCS phase 2 FUCS phase 3 FUCS phase 1 FUCS phase 2 FUCS phase 3 No spi...

Page 39: ...ption buttons until the LED begins to flash at least 2 seconds Important The START PAUSE button can be configured according to the styling of the model Therefore it is not always in the position shown in the picture In the first selector position the operation of the buttons and the relative LEDs is checked turning the selector knob clockwise activates the diagnostics cycle for the operation of th...

Page 40: ...through pre wash compartment bleach 4 Door interlock Pre wash and wash solenoids Door locked Water level below anti flooding level Maximum time 5 minutes Water ducted through softener compartment 6 Door interlock Wash solenoid if the level of water in the tub is below 1st level Heating element Door locked Water level above 1st level Maximum time 10 minutes or up to 90 C Heating 7 Door interlock Wa...

Page 41: ...re is in excess of 60 C Drain until closure of both pressure switch contacts 1st level and anti boiling safety system on EMPTY within a maximum of 5 minutes 8 1 1 Displaying the alarms during normal operation The type of alarm condition is displayed to the user by the repeated flashing of the END OF CYCLE LED 0 4 seconds lit 0 4 seconds off with an interval of 2 5 seconds between sequences This LE...

Page 42: ...e featured on all models though they are configured differently and flash simultaneously Notes The first letter of the alarm code E Error is not displayed since this letter is common to all alarm codes The alarm code families are shown in hexadecimal in other words A is represented by 10 flashes B is represented by 11 flashes F is represented by 15 flashes Configuration errors are shown by the fla...

Page 43: ...he alarm condition and performs the phase selected This does not take place in the case of alarms E51 power triac on motor short circuited and E52 no signal from the tachometric generator on the motor in these cases the only option to exit the alarm condition is to switch the appliance OFF by turning the selector to position 0 reset 8 4 Rapid reading of alarm codes The last alarm code can be displ...

Page 44: ... with door open OFF E35 Water overflow flooding Water fill solenoid faulty leakage from pressure switch hydraulic circuit pressure switch faulty wiring faulty PCB faulty Cycle blocked Safety drain cycle Drain pump always in operation 5 minutes on 5 minutes off etc OFF E36 Fault in sensing circuit of anti boiling pressure switch PCB faulty Cycle blocked door locked OFF E37 1st level sensing circuit...

Page 45: ...ector Incorrect configuration data PCB faulty Cycle cancelled E93 Incorrect configuration of appliance Incorrect configuration data PCB faulty Cycle interrupted OFF E94 Incorrect configuration of washing cycle Incorrect configuration data PCB faulty Cycle interrupted OFF E95 Communications error between microprocessor and EEPROM PCB faulty Cycle interrupted OFF E96 Incongruency between hardware ve...

Page 46: ...SOI DT 2002 07 eb 46 599 35 36 69 9 BASIC CIRCUIT DIAGRAM 9 1 Version with instantaneous door interlock ...

Page 47: ...SOI DT 2002 07 eb 47 599 35 36 69 9 2 Version with door interlock with PTC ...

Page 48: ...enerator motor 11 Rotor motor 12 Drain pump 13 Pre wash solenoid valve 14 Wash solenoid valve 15 NTC temperature sensor 16 Door locked pilot lamp some models DOOR_TY Interlock triac DRAIN_TY Drain pump triac K1 Heating element relay K2 Motor relay clockwise rotation K3 Motor relay counter clockwise rotation K4 Motor relay half field power models with spin speed over 1200 rpm MOTOR_TY Motor triac O...

Page 49: ...r 7 Tub 10 1 2 Control panel a Remove the top panel b Remove the detergent drawer c Remove the screws which secure the front of the control panel to the support cross member d Remove the upper screws and release the anchor tabs from the support e Remove the control panel by releasing it from the lower right hand guide To facilitate its release loosen the screws which secure it to the cabinet and r...

Page 50: ...ctors f Remove the spindles from the selectors Make sure that the position of the selectors is as shown in the picture i e CANCEL OFF for the programme selector last clockwise position for the secondary selector Use pliers to remove the spindle of the second selector if featured this operation may damage the plastic board casing it is therefore advisable to use a new spindle for the new board g Re...

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