Elektrolux EWM 1000 Serwisówka

8/9/2019 Elektrolux EWM 1000 Serwiswka

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SERVICE MANUAL

WASHING

Washing machines:


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Table of contents

1 INTRODUCTION........................................................................................................................................ 51.1 Purpose of this manual ....................................................................................................................... 51.2 Procedure ...........................................................................................................................................5

2 DIAGNOSTICS SYSTEM .......................................................................................................................... 62.1 ACCESS TO THE DIAGNOSTICS CYCLE version with horizontal pushbuttons ........................... 62.2 ACCESS TO THE DIAGNOSTICS CYCLE version with vertical pushbuttons ............................... 62.3 PHASES OF THE DIAGNOSTICS CYCLE........................................................................................7

3 ALARMS ....................................................................................................................................................83.1 Displaying user alarms ....................................................................................................................... 8

3.1.1 Alarm display during normal operation ...................................................................................... 83.2 Reading the alarms.............................................................................................................................9

3.2.1 Displaying the alarm.................................................................................................................... 93.2.2 Examples of alarm display........................................................................................................... 93.2.3 Status of alarms during the diagnostics cycle ............................................................................. 9

3.3 Rapid reading of alarms....................................................................................................................103.3.1 Version with horizontal pushbuttons..........................................................................................103.3.2 Version with vertical pushbuttons.............................................................................................. 10

3.4 CANCELLING THE LAST ALARM................................................................................................... 113.4.1 CANCELLING AN ALARM VERSION WITH HORIZONTAL PUSHBUTTONS..................... 11

3.5 CANCELLING AN ALARM VERSION WITH VERTICAL PUSHBUTTONS.................................. 113.6 TABLE OF ALARM CODES .............................................................................................................123.7 Notes concerning certain alarm codes ............................................................................................. 14

4 THE DIAGNOSTICS PROGRAMME CANNOT BE ACCESSED............................................................ 154.1.1 All LEDs on the circuit are board switched off........................................................................... 154.1.2 Some of the LEDs on the circuit board light. .............................................................................15

5 TROUBLESHOOTING ACCORDING TO ALARM CODES ....................................................................16E11: Difficulty in filling during wash phase........................................................................................... 16E13: Water leakage..............................................................................................................................18E21: Difficulties in draining...................................................................................................................20E23: Malfunction of drain pump triac....................................................................................................22E24: sensing circuit of the component (triac) that controls the drain pump faulty ........................... 22E33: Incongruence between closure of anti-boiling and 1st level contacts of pressure switch ........... 24E35: Water level too high .....................................................................................................................26E36: sensing circuit of anti-boiling pressure switch faulty................................................................27E37: sensing circuit of 1st level pressure switch faulty ....................................................................27E39: HV sensing circuit of anti-overflow pressure switch faulty ....................................................27E41: Door open (section 1: device with 3 contacts) .............................................................................28

E41: Problems with aperture of door (section 2 device with 4 connectors) ...................................... 30E42: Problems with aperture of the door (section 1 device with 3 contacts) .................................... 32E42: Problems with aperture of the door (section 2 device with 4 contacts) .................................... 34E43: Problems with the triac which actions the door interlock section 1...........................................36E43: Problems with the triac which actions the door interlock section 2...........................................38E44: Door closure sensing circuit faulty ........................................................................................... 40E45: Problems with the sensing circuit of the triac that actions the door interlock 40


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E97: Incongruence between selector version and configuration data ................................................. 55EA1: Drum positioning system (DSP) faulty (top-loaders only) ...........................................................56EB1: Incorrect mains frequency ........................................................................................................... 57EB2: Mains voltage too high.................................................................................................................57EB3: Mains voltage too low ..................................................................................................................57

6 ELEMENTARY DIAGRAM.......................................................................................................................586.1 With instantaneous door locking device ........................................................................................... 586.2 With PTC door locking device........................................................................................................... 59

6.2.1 Key to circuit diagram................................................................................................................607 CONNECTORS ON CIRCUIT BOARD.................................................................................................... 618 BURNING ON THE CIRCUIT BOARD .................................................................................................... 62

8.1 COMPONENTS SIDE (common) ..................................................................................................... 628.2 PUSHBUTTON LED SIDE (HORIZONTAL BUTTONS)................................................................638.3 PUSHBUTTON LED SIDE (VERTICAL BUTTONS) .....................................................................64


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1 INTRODUCTION

1.1 Purpose of this manual

The purpose of this Service Manual is to provide a simple and clear description of theprocedure to be followed by service engineers when confronted by problems identified bythe various alarm codes generated by appliances with the EWM1000 electronic controlsystem.

Depending on the configuration of the appliance, the alarm codes may be displayed

partially or completely to the user (the alarm codes are generally displayed partially).The diagnostics system can be used by service engineers for the following purposes:

To read the alarms

To cancel alarm conditions stored in memory

To test the operation of the appliance

1.2 Procedure

1. Identify the type of control system (i.e. with horizontal or vertical buttons) and accessthe diagnostics cycle (see page 6)

2. Read the alarm code stored in memory (page 9)and refer to the instructions for thecorresponding alarm code page 12-13.

3. Cancel the alarm stored in memory (page 11)

4. If access to the diagnostics cycle is not possible, refer to the section Access todiagnostics system impossible (page 15)

5. If the main PCB is replaced, check that there are no burned parts (see page 62 - 64)

6. After any repair, always check the operation of the appliance using the diagnosticscycle (page 6)

7. Cancel any alarms stored in memory during the diagnostics procedure (page11)


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2 DIAGNOSTICS SYSTEM

2.1 ACCESS TO THE DIAGNOSTICS CYCLE version with hor izontal pushbut tons

1. Switch off the appliance.2. Press and hold down the START/PAUSEbutton and any one of the OPTION buttonssimultaneously.

3. Holding down both buttons, switch the appliance on by turning the programme selector one positionclockwise.

4. Continue to hold down the START/PAUSE button and the OPTION button until the LEDs begin to flash(at least 2 seconds).

IMPORTANT: The posi tion of the START/PAUSE button varies according to the model, and istherefore not always the same.

In the first position, the cycle tests the operation of the buttons and the relative LEDs. If the selector is

turned clockwise, the cycle performs the diagnostics for the various components and reads the alarmcodes.

2.2 ACCESS TO THE DIAGNOSTICS CYCLE version with vertical pushbuttons


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2.3 PHASES OF THE DIAGNOSTICS CYCLE

After accessing the diagnostics cycle, and irrespective of the type of control board fitted to the appliance(i.e. vertical or horizontal buttons) and the configuration of the selector, turn the programme selector

clockwiseto perform the diagnostics cycle for the various components and to read the alarms.All the alarms are enabled during the diagnostics cycle.

Position ofselector

Components activated Conditions of operation Function tested

1

- All the LEDs light in sequence- When a button is pressed, the

corresponding LED lights (andthe buzzer may sound)

Always enabledOperation of theuser interface

2- Door safety interlock- Washing solenoid valve

Door lockedWater level lower than anti-overflow levelMaximum time 5 minutes

Water ductedthrough washingcompartment

3- Door safety interlock- Pre-wash solenoid valve

Door lockedWater level lower than anti-overflow level

Maximum time 5 minutes

Water ductedthrough pre-wash(bleach)

compartment

4- Door safety interlock- Washing and pre-wash solenoid

valves

Door lockedWater level lower than anti-overflow levelMaximum time 5 minutes

Water ductedthrough conditionercompartment

6

- Door safety interlock- Wash solenoid (if the water in

the tub is below 1st level)- Heating element

Door lockedWater level > 1st level

Maximum time 10 minutes orup to 90C (*)

Heating

7

- Door safety interlock- Wash solenoid (if the water in

the tub is below 1st level)- Motor (55 rpm clockwise, 55

rpm anti-clockwise, impulse at250 rpm)

Door lockedWater level > 1st level

Check for leaksfrom the tub

8- Door safety interlock

- Drain pump- Motor up to 650 rpm then at

maximum spin speed

Door lockedWater level lower then anti-boiling level for spinning

Drain and spin,check forcongruence inclosure of pressureswitch levels

Only for top-loaders with drumpositioning system:

Door lockedWater level lower then anti Test for positioning


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3 ALARMS

3.1 Displaying user alarms

Operation of the alarms is configurable. Therefore, depending on the model, the alarms may bedisplayed partially or entirely to the user.

Normally, all alarms except those shown below are displayed to the user:- E61 (insufficient heating during the washing phase),- E83 (error in reading the selector position)- EA1 (error in positioning of the drum top-loaders only)

The alarms are enabled during the execution of the washing programme with the exception of the alarms

relative to the configuration and the power supply (voltage and frequency), which are also displayed duringthe programme selection phase.Except where specified, the door can generally be opened when an alarm condition occurs on condition that:

The water in the tub is lower than 1st level

The temperature of the water is lower than 40C

Certain alarms require a drain cycle (for reasons of safety) before the door can be opened:

Cooling water fill phase if the temperature is higher than 60C Drain until both contacts of the pressure switch (1st level and anti-boiling) close on EMPTY in a

maximum time of 5 minutes.

3.1.1 Alarm display during normal operation

The family of alarms is displayed to the user by a repeating sequence during whichthe END OF CYCLE LED flashes (0.4 seconds ON, 0.4 seconds OFF, with a pauseof 2.5 seconds between each sequence) This LED is featured on all models,although it may be configured in different positions. Configuration errors aredisplayed flashing of all the LEDs.

End of cyc le LED

ON/OFFTime

(seconds)Value

0.4 1

0.4

0.4 2

0 4

For example, if the user should forget to close the door, alarmcondition E41 will be displayed about 15 seconds after thecycle is started. The cycle is paused and the END OF CYCLE

LED flashes repeatedly in the sequence shown in the tableopposite.

The four flashes indicate the first two digits of alarm E41(alarms relative to the same function are grouped intofamilies).


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3.2 Reading the alarms

Proceed as follows to read the last alarm condition stored in the EEPROM on the

control board: Access diagnostics mode.

Irrespective of the type of control board and configuration, turn theprogramme selector clockwiseto the tenth position.

3.2.1 Displaying the alarm

The alarm is displayed by a repeated flashing sequence of the two LEDs (0.4seconds ON, 0.4 seconds OFF, with a pause of 2.5 seconds between eachsequence). The buzzer (if featured) sounds a series of beeps in synchronization

with the flashing of the LEDs. END OF CYCLEindicatorindicates the first digit of the alarm code (family)

START/PAUSEindicates the second digit of the alarm code (numberwithin the family).

These two LEDs are present on all models (though configured in differentpositions) and flash simultaneously.

Notes:

The first letter of the alarm code E (Error) is not displayed since it is the same for all alarm codes.

The alarm code families are expressed in hexadecimal form. In other words: A is represented by10flashes

B is represented by11flashes

...

F is represented by15flashes

Configuration errors are displayed by the flashing of all the LEDs (user interface not configured).

3.2.2 Examples of alarm display

Example: Alarm E43(problems with the door safety interlock triac) will be displayed as follows: four flashes of the END OF CYCLE LED indicate the first digit E43;

three flashes of the START/PAUSE LED indicate the second digit E43;

END OF CYCLE LED START/PAUSE LED

ON/OFFTime

(seconds)Value ON/OFF

Time(seconds)

Value

0.4 0.4

0.4 1 0.4 1

0.4 0.4

0.42

0.42

0 4 0 4


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3.3 Rapid reading of alarms

The last alarm can be displayed even if the programme selector is not in the tenth position (diagnostics) or ifthe appliance is in normal operating mode (e.g. while the washing programme is in operation):

3.3.1 Version with horizontal pushbuttons

Press START/PAUSEand any one of the option but tonssimultaneously for at least two seconds: the LEDs first switch off,and then display the flashing sequence corresponding to thealarm condition.

The alarm sequence continues as long as the two buttons areheld down.

The alarm reading procedure is as described in paragraph 3.2.1.

While the alarms are displayed, the current cycle being

performed continues or, if the appliance is in the programmeselection phase, the options previously selected remain inmemory.

3.3.2 Version with vertical pushbuttons

Press buttons 3and 2for at least two seconds: theLEDs first switch off, and then display the flashingsequence corresponding to the alarm condition.

The alarm sequence continues as long as the two

buttons are held down. The alarm reading procedure is as described in

paragraph 3.2.1.

While the alarms are displayed, the current cyclebeing performed continues or, if the appliance is inthe programme selection phase, the optionspreviously selected remain in memory


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3.4 CANCELLING THE LAST ALARM

It is good practise to cancel the alarm condition stored in memory:

after reading the alarm, in order to check whether it occurs again during the diagnostics test.

after repairing the appliance, in order to check whether the alarm occurs again during testing.

3.4.1 CANCELLING AN ALARM VERSION WITH HORIZONTAL PUSHBUTTONS

1. Access alarm reading mode (tenth selector posit ion, see paragraph 3.2)2. Press and hold down START/PAUSEand any one of the option keyssimultaneously.3. Hold the START/PAUSE and OPTION button down until the LEDs begin to flash (about 5 seconds)

IMPORTANT: The posi tion of the START/PAUSE button varies according to the model, and istherefore not always the same.

3.5 CANCELLING AN ALARM VERSION WITH VERTICAL PUSHBUTTONS


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2002-03 SOI/DT-eb LPD/C&F-hd PLT/ASQ-apdv 14 599 35 16-00

3.7 Notes concerning certain alarm codes

Configuration alarms E93-E96: If these alarms are generated (when the appliance is switched on), operation of the appliance is blocked and all the LEDslight. The diagnostics procedure cannot be accessed; the only option is to switch the appliance OFF (by turning the selector to position 0).

Configuration alarm E94: For this alarm code, only the family for alarm 9 is displayed; the diagnostics procedure cannot be accessed, and the rapid alarmdisplay function cannot be used.

AlarmsEB1-EB2-EB3:In the event of problems with the mains power supply, the appliance remains in alarm mode until the mains frequency or voltage arerestored to the correct value or the appliance is switched off (by turning the programme selector to 0). The family of alarm B is displayed; the diagnostics

procedure cannot be accessed, and the rapid alarm display function cannot be used. The complete alarm code can be read only when the abnormal situationhas ceased.

AlarmsE51- E52:During the diagnostics test, all the alarms are displayed. Normally, when the programme selector is turned from one test phase to another,the appliance exits the 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 tachymetric generator on the motor): in these cases, the only option to exit the alarm condition is to switch the applianceOFF by turning the selector to position 0 (reset).


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4 THE DIAGNOSTICS PROGRAMME CANNOT BE ACCESSED

4.1.1 All LEDs on the circuit are board switched off.

Are the power cable and connection OK? No Replace or repair the power cable, check the

connector

Yes

Does the suppressor function correctly? No

Replace the suppressor

Yes

Is the wiring from the suppressor to the circuitboard (connectors J8.1-J8.2) OK?

No Replace or repair the wiring

Yes

Does the programme selector functioncorrectly?

No

Replace or repair the knob or knob spindle

Yes

Replace the circuit board and perform thediagnostics programme.

4.1.2 Some of the LEDs on the circuit board light.

Do the keys move without hindrance in theS l th h i l bl

Suppressor

Circuit board


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YES

Access the diagnostics cycle and duct water through all the compartments (phases 2,3,4)Is water ducted through all the compartments?

5 TROUBLESHOOTING ACCORDING TO ALARM CODES

E11: Difficulty in f illing during wash phase

E11 Maximum water fill time for each pressure switch level(this time is reset to zero each time the level is reached)

E11

Tests to be performed:

YES

YES

YES

YES

YES

NO

YES

Position the drain circuit correctly and restart thediagnostics cycle to check for further alarm

conditions.

NO Repair the hydraulic circuit of the pressureswitch and restart the diagnostics cycle to check

for further alarm conditions.

NO Replace the pressure switch and restart thediagnostics cycle to check for further alarm

conditions.

Replace the circuit board and restart the diagnostics cycle to check for further alarms

NO Replace or repair the wiring and restart thediagnostics cycle to check for further alarm

conditions.

Is the drain hose positionedcorrectly so as not to create the

siphon effect? (fig.16)

Is the hydraulic circuit of thepressure switch efficient(leaks/blockage)? Fig. 2

Does the pressure switch close thecontacts correctly after filling withwater up to door level? (contacts

closed between 11-14, 21-24, fig 3)

Is the wiring between the pressureswitch and the circuit board

connectors efficient? Measure theresistance of the heater across J2-1and J2-2 (closed circuit) and across

J2-2 and J6-1. (fig.1)

(about 27 at 1950W-230V)

NO Check that the tap is open, that the mainswater pressure is sufficient and that the hoses

are correctly connected and not kinked.Do any or all the solenoids fail to function?

NO

NORepair the hydraulic circuit and restart the

diagnostics cycle to check for further alarms.Is the hydraulic circuit efficient

(leaks)?


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E11

fig . 16

fig. 2

fig. 1


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YES

Access the diagnostics cycle and duct water through all the compartment (phases 2,3,4)Is water ducted through all the compartments?

E13: Water leakage

E13 Overall maximum water fill time exceeded (the sum of all the water fills between one drainphase and the next, to avoid exceeding the maximum volume)

E13


YES

YES

YES

YES

NO

YES

Position the drain circuit correctly and restart thediagnostics cycle to check for further alarm

conditions.

NO Repair the hydraulic circuit of the pressureswitch and restart the diagnostics cycle to check

for further alarm conditions.

NO Replace the pressure switch and restart thediagnostics cycle to check for further alarm

conditions.

Replace the circuit board and restart the diagnostics cycle to check for further alarms

NO Replace or repair the wiring and restart the

diagnostics cycle to check for further alarmconditions.

Is the drain hose positionedcorrectly so as not to create the

siphon effect? (fig.16)

Is the hydraulic circuit of thepressure switch efficient(leaks/blockage)? fig.2

Does the pressure switch close thecontacts correctly after filling withwater up to door level? (contacts

closed between 11-14, 21-24, fig 3)

Re-connect the wiring to thepressure switch. Is the wiring

efficient? Measure the resistance of

the heater across J2-1 and J2-2(closed circuit) and across J2-2 and

J6-1. (fig.1)

(about 27 at 1950W-230V)

NO Check that the tap is open, that the mainswater pressure is sufficient and that the hoses

are correctly connected and not kinked.Do any or all the solenoids fail to function?

YES

NO R l th l id d t t th di tiI th h i i t f th l id b t 3 5

NO

NORepair the hydraulic circuit and restart the

diagnostics cycle to check for further alarms.Is the hydraulic circuit efficient

(leaks)?


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E13

fig . 16

fig. 2

fig. 1


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NO NO NO

YES

NO

NO

NO

E21: Difficulties in drainingE21

Maximum drain time exceeded (measured for each phase of the cycle)E21


YES

YES

NO Clean the filter and restart the diagnostics cycle

to check for further alarm conditions.Is the drain filter clean?

NODisconnect and check the drain system.Is the drain system OK? (drain hose and

domestic hydraulic circuit) -fig.16

Does the drainpump function? (in

the diagnosticscycle, select phase2fill and phase 8drain) (noise from

the pump)

Is the ohmic resistanceof the pump about

155-200? (measuredirectly on the

connector on thecircuit board side

across J3-4 and J3-1 -fig. 1-

Replace the pumpand restart the

diagnostics cycle tocheck for furtheralarm conditions.

Is the ohmicresistance of thepump about 155-

200? (measuredirectly on the

pump)-see fig.5-

Check and if necessary replace the wiring andrestart the diagnostics cycle to check for further

alarm conditions.

Is the pumpimpeller jammed or

broken?

Is the hydraulic circuit of the pressure switch

efficient? (i.e. not obstructed)

Replace the circuit board and restart thediagnostics cycle to check for further alarm

conditions.

Repair the hydraulic circuit of the pressure

switch and restart the diagnostics cycle to checkfor further alarm conditions.

Clean or replace the drain pump and restart the diagnostics cycle to checkfor further alarm conditions.

After draining the water, do the pressureswitch contacts open correctly? (between 11-14

Replace the pressure switch and restart thediagnostics cycle to check for further alarm

YES

YES YES


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E21

fig . 16

fig . 15

fig. 5


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E23

fig. 9

fig. 5


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NO

YES

NO NO

YES

NO

YES

YES

YES

NO

E33: Incongruence between contact closure of anti-boiling and 1st level contacts ofpressure switch

E33The anti-boiling contact is open while the 1st level contact is closed, or other incongruence

between the pressure switch levels for more than 3 seconds

E33


Replace the connector. Start thediagnostics cycle and select phase 6

(water fill to 1st level followed by heating).Two clicks should be heard from the

pressure switch. Measure directly on thepressure switch.

DO NOT DETACH THE TUBE.Is the circuit between contacts 11-24 and

21-24 closed? - fig. 3 -

Replace the pressureswitch and restart thediagnostics cycle to

check for further alarmconditions.

Replace the heatingelement and restart

the diagnosticscycle to check for

further alarm

conditions.

Measure the ohmic resistance of the

heating element () across terminals J2-1and J6-1 on the wiring connector.

-see fig.1-.Is the resistance correct?

(2628for 230V/1950W,

2831for 240V/1950W)

Replace the heating

This fault may be caused by the heatingelement which, if the insulation becomesdetached, may send unusual signals tothe circuit board Generally this fault

Replace the wiring andrestart the diagnostics

cycle to check for furtheralarm conditions.

Check the wiring between terminals J2-1and J2-2 of the connector (circuit board

side) -see fig.1-.Is the circuit closed?

Replace the pressureswitch and restart the

diagnostics cycle to checkfor further alarm

Drain the water from the tub. Is the circuitbetween contacts 11 14 and 21 24 of

the pressure switch open?- fig. 3a -

Measure the ohmicresistance directly on theterminals of the heating

element (detach theconnectors) -see fig.13-.Is the resistance correct?

2628for 230V/1950W2831for 240V/1950W


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E33

fig. 1

fig . 15 fig. 13


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NO NO NO

YES

NO

NO

YES

NO

YES

YES

E35: Water level too high

E35 The anti-overflow safety pressure switch is on FULL for more than 15 seconds(if featured)

E35


Replace the fillsolenoid and

restart thediagnostics cycle to

check for furtheralarm conditions.

Start thediagnosticscycle from

phase 8. Afterclosing the door,does the waterfill continue?

Is the wiring OK?Measure across J2-3and J2-6 for closedcircuit if connectedacross 31-32 of the

pressure switch(open circuit if

connected across 31-34 of the pressure

switch)

Do the contacts ofthe pressureswitch close

correctly? Withoutwater, contact 31-32 closed (31-34,if featured, open).

Replace the circuitboard and restartthe diagnostics

cycle to check forfurther alarmconditions.

Replace thepressure switchand restart the

diagnosticscycle to check

for further alarmconditions.

YES

Does theappliance fill withwater even when

switched off?

Repair or replacethe wiring and

restart thediagnostics cycle to


Start the diagnostics cycle from phase 2andfill with water up to the porthole door. Does thepressure switch close the 1st level contacts?

-

Yes

Replace the pressure switch and restart thediagnostics cycle to check for further alarm

conditions.

Reconnect the wiring to the pressure switch. Isthe wiring efficient?

Measure across connector J2-1 and J2-2(circuit closed) - fig.1-

Repair and/or replace the wiring and restartthe diagnostics cycle to check for further alarm

conditions.


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E35

Tub empty Water at 1st level

E36 E36: sensing circuit o f anti-boiling pressure switch faulty E36


Replace the circuit board and restart the diagnostics cycle to check for further alarm conditions.

fig. 1


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NO

Is the door correctlyclosed?

YES

YES

NO

E41: Door open (section 1: device with 3 contacts)E41

Maximum time exceeded (PTC = 15 seconds, instantaneous, 3 attempts every 2 seconds)E41


YES

Detach the connectors andeffect measurement on the

component (fig 6):- across connectors 3 and 5,

the circuit must NOT beopen (the resistive valueshould be measurable);

- across connectors 4 and 5,

the circuit must be OPEN(the numbers are printed on

the component).Is the door safety interlock

OK?

3 ContactsTraditional door interlock

- fig. 6 -

To check the wiring (with the dooropen), measure the following

wiring connectors:- between wires J2-4 and J6-2, the

circuit must NOT be open(measure the resistive value of the

PTC);- between wires J6-2 and J2-1, the

circuit must be OPEN.

- between connector J2-1 (PCBside) and the wire to connector 4of the door interlock (fig. 7), the

circuit must be CLOSED.Is the system OK?

Replace the doorinterlock and

restart thediagnostics cycle

to check for

further alarmconditions.

Check/replace the wiring andrestart the diagnostics cycle to


NO Close the door correctlyand restart the diagnosticscycle to check for further

alarm conditions.

Does the doorinter-lock

have 3or4connectors?

4 Connectors(Instantaneous door

interlock)-fig. 8, see page 30 -

YES

fig. 6


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E41a

fig. 6

fig. 7


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NONO

YES

YES

NO

E41: Problems with aperture of door (section 2 device with 4 connectors)E41

Maximum time exceeded (255 seconds for version with PTC / 5 impulses for instantaneous)E41


Detach the connectors fromthe door locking device andmeasure the following on

the component:- between connectors 3 and4 the circuit must NOT be

open (measure the resistivevalue of the PTC).

- between connectors 2 and

4 the circuit must NOT beopen (measure the resistive

value of the PTC).- between connectors 4 and5 the circuit must be OPEN(the numbers are marked on

the component.Is the door lock OK?

(fig. 8)

4 ConnectionsInstantaneous door locking

device- fig 8 -


wiring contacts (fig. 1):- between wires J2-5 and J6-2, the



circuit must NOT be open

(measure the resistive value of thePTC).

- between wires J2-1 and J6-2, thecircuit must be OPEN.

- between J2-1 and the wire toconnector 5 on the door lock there

must be a short-circuit.Is the system OK?

Replace the doorlocking deviceand restart the

diagnostics cycleto check for




Is the door locking device securelyanchored to the latch?

Replace the door latch or thedoor

YES

fig. 8


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E41b

fig. 8

fig. 7


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NO

YES

YES

NO

E42: Problems with aperture of the door (section 1 device with 3 contacts)E42







the circuit must be OPEN(the numbers are printed onthe component).

Is the door safety interlockOK?

3 ConnectionsTraditional door locking

device.- fig. 6 -


wiring connectors (fig. 1):- between wires J2-4 and J6-2, the



circuit must be OPEN.

- between connector J2-1 (PCBside) and the wire to connector 4of the door interlock (fig. 7), the

circuit must be CLOSED).Is the system OK?



to check for




Does the doorinterlock have

3or 4connectors?



YES

fig. 6


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NONO

YES

YES

NO

E42: Problems with aperture of the door (section 2 device with 4 contacts)E42










(fig. 8)


device- fig 8 -









must be a short-circuit.Is the system OK?






Is the door locking device securelyanchored to the latch? Replace the door latch or the

door

YES

fig. 8

E42b


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E42b

fig. 8

fig. 7


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NO

YES

YES

NO

YES

E43E43: Problems with the triac which actions the door interlock section 1

- device with 3 contactsE43






the circuit must be OPEN(the numbers are printed onthe component).

Is the door safety interlockOK?

3 ConnectorsTraditional door locking

device.- fig. 6 -

To check the wiring (with the dooropen), measure the followingwiring connectors (fig. 1):

- between wires J2-4 and J6-2, thecircuit must NOT be open

(measure the resistive value of thePTC);

- between wires J6-2 and J2-1, thecircuit must be OPEN (measure

the resistive value of the PTC).- between connector J2-1 (boardside) and the wire to connector 4of the door interlock (fig. 7), the

circuit must be CLOSED).Is the system OK?



to check for




Replace the circuit board and restartthe diagnostics cycle to check for

further alarm conditions.

Does the doorinter-lock

have 3or 4connectors?



fig. 6

E43a


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E43a

fig. 6

fig. 7


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NONO

YES

YESYES

E43E43: Problems with the triac which actions the door interlock section 2

- device with 4 contactsE43









(fig. 8)


device- fig 8 -









must be a short-circuit (fig. 7).Is the system OK?








fig. 8

E43b


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fig. 8

fig. 7


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E44 E44: Door closure sensing circuit faulty E44


E45 E45: Problems with the sensing circuit of the triac that actions the door interlock E45



conditions.


conditions.


41/64

NO

NO

NO

E51: Motor power triac short-circuited

E51 Intervention of the safety system for short-circuiting of the triac (after 5 attempts during thecycle, immediately if detected at the start or during diagnostics)

E51


YES

YES

YES

Measure between all theterminals of wiring connectorJ1 and the structure of the

appliancesee fig. 1 and 9

Is there current leakage?

Detach the connector fromthe motor and measure

across the terminals of themotor and the body of the

machine see fig. 10.Is there current leakage?

Detach connector J1 from thecircuit board and perform

phase 8of the diagnosticscycle.

Is alarm E51 still displayed?

Replace the circuit board andrestart the diagnostics cycle to


Replace the motor and

restart the diagnostics cycleto check for further alarm

conditions.

Check/replace the wiring and

restart the diagnostics cycle tocheck for further alarm

conditions.

fig. 10

E52 will probably bedisplayed: replace the

connector and restart thediagnostics cycle to


If there are traces ofburning on the circuit

board, refer to pages 62-64


42/64

YES YES

NO

YESYES

NO

NO NO

NO

E52: No signal from the motor tachymetric generator (section 1)

E52 Cycle blocked after 5 attempts during the cycle or immediately if detected at the start or duringdiagnostics

E52


Perform phase 7 ofthe diagnostics cycle(the drum rotates at

50 rpm clockwise and250 rpm anti-

clockwise). Does themotor rotatecorrectly?

The motor protectioncircuit-breaker hasprobably tripped.

Before replacing themotor, check the

following

that the hydrauliccircuit of the pressureswitch is OK (minorleaks from the tubemay cause greaterthan normal waterfills, and the motor

may overheat)

that the bearingsare OK and the drumrotates without friction

that the mainsvoltage is correct (if

the voltage is too low,though not lower than

the EB3 alarmthreshold, the motor

might not start)

Check/replace thewiring and restart thediagnostics cycle to


Replace themotor or thetachymetric

generator and


to check forfurther alarmconditions.

Measure across thesame terminals of the

wiring connector(J5-3 and J5-4) andthe structure of the

Is the positioning ofthe tachymetric

generator correct?- see fig.12 -

Replace themotor/

tachymetricgenerator and

restart the

Does themotor rotate

for a fewmoments and

then stop?

The motor does not rotate at all

- see page 44 -

NO

Measure across theterminals of the wiringconnector (J5-3 andJ5-4). Are the values

() of the tachymetricgenerator correct?(refer to page 45

- step 4, phase A ).

Detach theconnector from themotor and measure

() the coil of thetachymetric

generator-see fig.11-Is the value

correct?(refer to page 45

- step 4, phase A)

E52a


43/64

E52a

fig. 10fig. 11

fi 12

fig. 9

E52: No signal from the tachymetric generator (section 2)


44/64

YES

YES

E52: No signal from the tachymetric generator (section 2)

E52 Cycle blocked after 5 attempts during the cycle or immediately if detected at the start or duringdiagnostics

E52


To check the wiring, measure (-fig.11) across the following terminals of

the circuit board connector (fig.1) andcompare with the correct values

(see page 45: step 4 motorparameters)- across J1-1 and J1-2, the value must

be as in step 4 - B (Stator)- across J1-1 and J1-3, if present, the

value must be as in step 4 - E(stator range).

- across J1-4 and J1-5, the valuemust be as in step 4-D (rotor).Are these values correct?



Check the motoras described on

page45.

Is the motor OK?

The motor does not rotate at all

NO

Replace the motorand restart the

diagnostics cycleto check for furtheralarm conditions.

NO

Check/replacethe wiring and


to check forfurther alarmconditions.

fig. 11

If there are traces ofburning on the

circuit board, referto pages 62-64

Procedure for checking commutator motors


45/64

Procedure for checking commutator motors

1) Check the connector blocks (wiring)

and check for detached or bentterminals.

2) Check for traces, residue or depositsof water or detergent on the motor andidentify the source.

3) Check for windings or other parts thatmay be grounded or poorly insulated.

Use a tester with a minimum scale of40 M: between each terminal and the

casing, this should read (fig. 10)

4) Check each winding against the valuesshown in the table below (fig. 11).

Terminals onmotor

terminal blockChecks

SOLEMotor

[ ]

F.H.P.Motor

[]

CE.SE.T.Motor

[]

171 196

A 3 - 4Winding of tachymetric

generator469 540

126 147 64 73

B 5 - 10Stator winding (full

range)1.0 2.2 1.0 3.0 1.0 2.0

C 6 - 7 Overheating breaker 0 0 0

D 8 - 9 Rotor winding 1.5 3.0 1.5 3.0 1.5 3.0

E 1 - 10Stator winding (halfrange, presence of

terminal 1)0.5 1.0 0.5 1.5 0.5 1.0

N.B.: When checking the rotor winding, the measurement must be effected over the entire surface, rotatingthe spindle very slowly and checking for short-circuits between visible plates. Also check the brushesfor wear.

P= motor overload breakerR= rotor S= statorT= tachymetric generator

E53 E53


46/64

E53 E53: Problems with the sensing circuit of the triac which powers the motor E53



conditions.

If there are traces ofburning on the circuit

board, refer to pages 62-64


47/64

NO

NO

E54: Motor relay contacts stickingE54

Voltage in the motor circuit even when the motor should be inoperativeE54


YES

Replace the circuit board and restart thediagnostics cycle to check for further

alarm conditions.

Measure between all terminals of wiringconnector J1 (fig.1) and the structure of

the appliancesee page 45, step 3

Is there any current leakage?- see fig. 9 -

Detach the connector from the motor andmeasure across the terminals of themotor and the body of the machine

- see fig. 10 -Is there any current leakage?

Replace the motor and restart thediagnostics cycle to check for further

alarm conditions.

Check/replace the wiring and restart thediagnostics cycle to check for further

alarm conditions.

YES

If there are traces of burning on the circuitboard, refer to pages 62-64

fig. 10

fi 9

E61: Insufficient heating during washingE61 E61


48/64

YES

NO NO

NO

NONO

YES

g g gE61

Maximum heating time exceededE61


Measure the resistancedirectly on the terminals of

the heating element (detachthe connectors).

- see fig.13 -Is the value correct?

(2628for 230V/1950W,

2831for 240V/1950W)

Measure the value of theNTC sensor acrossJ5 1 and J5 2 of the

Start the diagnostics cycleand fill with water up to the

level of the door to close thepressure switch contact.Measure the value of the

heating element () acrossterminals J6-1 e J2-1 of the

wiring connector

-see fig.1-.Is the value correct?

(2628for 230V/1950W,

2831for 240V/1950W)

Replace the heatingelement and restart the


conditions.

Check/replace the wiring andrestart the diagnostics cycle

to check for further alarmconditions. Otherwise, start a

normal cycle and feel thetemperature directly on the

door.

Detach the connector andmeasure the value directly

on the NTC sensorReplace the NTC

t t d

Replace the pressureswitch and restart the


conditions.

Measure across contacts11- 14 and across 21-24 of

the pressure switch.- fig. 3 -

Are both contacts closed?

YES

E61


49/64

fig. 3

fig. 13 fig. 14

E62: Overheating during washingE62 E62


50/64

NO

YES

NO

NO

YES

NO

YES

YES

E62The temperature of the NTC sensor exceeds 88C for more than 5 minutes

E62


Measure the NTC sensor

across terminals J4-1 andJ4-2 of the circuit boardconnector.

Is the value correct?

(between 5.7 and 6.3 Kat20C)

Start the diagnostics cycleand fill with water up to the

level of the door to close thepressure switch contact.Measure between wiringconnector J2-2 (fig.1) and

the structure of theappliance.

- see fig. 9 -Is the circuit open?

Detach the connector andmeasure across the heating

element and the groundcontact.

- see fig. 15 -Is the circuit open?

Replace the heatingelement and restart the


conditions.

Check/replace the wiringand restart the diagnosticscycle to check for further

alarm conditions.Measurement across J2-2

and the structure of the

appliance may be repeatedafter replacing the heating

element connectors.

Detach the connector and

measure directly on theNTC sensor- see fig. 14 -


(between 5.7 and 6.3 Kat20C)

Replace the NTC sensorand restart the diagnosticscycle to check for further

alarm conditions.

Replace the circuit boardand restart the diagnosticscycle to check for further

alarm conditions.

Check/replace the wiringand restart the diagnosticscycle to check for further

alarm conditions.

E62


51/64

fig. 15fig. 14

E66 E66: The contacts of the heating element power relay are always closed E66


52/64

YES

NO

YES

NO

g p y y


Measure across connector J2-2 on the circuitboard and the structure of the appliance

(Fig. 1 and 9)Is there any current leakage?


alarm conditions.

Detach the connector and measure across theheating element and the ground contact.- fig. 15 -

Is the circuit open?

Replace the heating element and restartthe diagnostics cycle to check for further

alarm conditions.

Check/replace the wiring and restart thediagnostics cycle to check for further alarm

conditions.


fig. 9

fig . 15

E71: NTC washing sensor faultyE71

V lt t ithi li it ( h t i it d )E71


53/64

YES

NONO

YES

YES

YES

NO

NO

Voltage not within limits (short-circuited or open)


fig. 14

Perform phase 6of the diagnostics cycleand wait until the fill ends. Switch the

appliance off and measure the value ofthe NTC sensor across contacts J5-1

and J5-2 of the wiring connector (fig. 1).Is the value correct?

(between 5.7 and 6.3 Kat 20C)

Detach the connectorand measure the NTC

sensor directly.- see fig. 14 -


(5.7 - 6.3 Kat 20C)

Replace the NTCsensor and restart thediagnostics cycle to


Measure across terminals J5-1 and J5-2of the connector and the structure of the

appliance - see fig. 9 -Is there any current leakage?

Check/replace the wiring and restart the diagnosticscycle to check for further alarm conditions.

Detach the connector and measure directlyacross the terminals of the NTC sensor andthe structure of the appliance (there must

be water in the tub).Is there any leakage?

Replace the NTC sensor and restart thediagnostics cycle to check for further

alarm conditions.


alarm conditions.

Check/replace the wiring and restart thediagnostics cycle to check for further

alarm conditions.


E82: Error in reading the RESET/OFF posi tion of the programme selector

E82 Reading of position 0 of the selector when the appliance is switched on or configuration E82


54/64

YES

NONO

YES

NO

E82 Reading of position 0 of the selector when the appliance is switched on, or configurationerror

E82


E83: Error in reading the programme selector codeE83

Code for the position of the selector not included in configuration data or configuration errorE83


Switch the appliance OFF(selector position 0).Do any LEDs light?

Switch the appliance on andturn the programme selector

to every position. Wait 10seconds at each positionbefore passing to the next

one. Does alarm E82reappear?


alarm conditions.


alarm conditions.

Restart the diagnosticscycle to check for further

alarm conditions.

Switch the appliance on andturn the programme selector

to every position. Wait 10seconds at each position

before passing to the nextone. Does alarm E83

reappear?

Restart the diagnosticscycle to check for further

alarm conditions.

E93: Incorrect machine conf igurationE93

Incongruence in configuration values when switching onE93


55/64

Incongruence in configuration values when switching on


E94: Incorrect configuration o f washing cycle

E94 Incongruence in configuration values when switching on E94


E95: Communications error between microprocessor and the programme memorystored in the board (EEPROM)E95

Error detected during reading or writing of the EEPROM

E95


E96: Incongruence between control panel version and configuration data

E96 Difference between the configuration data and the data that identify the type of control panelwhen the appliance is switched on (vertical or horizontal buttons)

E96


Possible configuration errorReplace the circuit board and restart the diagnostics cycle to check for further alarm conditions.


Replace the circuit board and restart the diagnostics cycle to check for further alarm conditions.


EA1: Drum positioning system (DSP) faulty (top-loaders only)

EA1 No signal or discontinuous signal from the sensor for more than 10 seconds during actioning EA1


56/64

NO

NO

NO

No signal or discontinuous signal from the sensor for more than 10 seconds during actioningof the motor to position the drum


YES

Is the drive belt OK? Is the pulley OK? Is the ferrite platepositioned correctly?

(fig. 19)

Replace the belt/pulley and restartthe diagnostics cycle to check for


If there are traces of burning on thecircuit board, refer to pages 62-64

Remove the connector and measure directly on the sensor:- circuit closed when on the normal section of the pulley-

(fig. 18) circuit open when on the ferrite plate (fig. 17). Isthe sensor efficient?

Replace the positioning sensor andrestart the diagnostics cycle to

check for further alarm conditions.

YES

YES

Replace the connector and measure across J5-5 and J4-1on the wiring connector: when the drum is rotated, the circuitshould open and close. Check for leakage to ground across

the same terminals.Is the wiring OK?

Check/replace the wiring and restartthe diagnostics cycle to check for


Start the diagnostics cycle (phase 9). If alarm EA1reappears, replace the circuit board and restart the

diagnostics cycle to check for further alarm conditions.

fig . 18 fig. 17

fig. 19

EB1: Incorrect mains frequencyEB1

The power supply frequency is not within the configured limitsEB1


57/64

YES

NO

NO

YES

The power supply frequency is not within the configured limits


EB2: Mains voltage too highEB2

Mains voltage higher than configured voltage (for more than 10 seconds)EB2


EB3: Mains voltage too lowEB3

Mains voltage lower than configured voltageEB3


Is there interference in the power line, or is themains frequency outside the correct limits?


conditions.

Have the user check and if necessary repairthe domestic power supply circuit.

Important!The appliance remains in alarm mode until the frequency returns to the correct value or the appliance isswitched off (programme selector on 0). Only the family of the alarm is displayed, and the diagnosticscycle cannot be started. The complete alarm can be read only when the alarm condition has ceased.

Is there interference in the power line, or is themains voltage outside the correct limits?


conditions.

Have the user check and if necessary repairthe domestic power supply circuit.

Important!The appliance remains in alarm mode until the frequency returns to the correct value or the appliance isswitched off (programme selector on 0). Only the family of the alarm is displayed, and the diagnosticscycle cannot be started. The complete alarm can be read only when the alarm condition has ceased.

6 ELEMENTARY DIAGRAM


58/64


6.1 With instantaneous door locking device

6.2 With PTC door lock ing device


59/64


6.2.1 Key to circui t diagram


60/64


Electrical components appliance Components of electronic circui t board

1. Circuit board2. Suppressor3. Main switch (on programme selector)4. Door safety interlock5. 1st level pressure switch6. Anti-boiling pressure switch7. Anti-overflow pressure switch (certain models only)8. Heating element9. Stator (motor)10. Overload circuit-breaker (motor)11. Tachymetric generator (motor)12. Rotor (motor)13. Drain pump14. Pre-wash solenoid valve15. Washing solenoid valve16. Door closed lamp (certain models only)17. Drum positioning system (DSP) (top-loaders certain models only)

DOOR_TY Triac for door safety interlockDRAIN_TY Triac for drain pumpK1 Heating element relayK2 Motor relay: clockwise rotationK3 Motor relay: anti-clockwise rotationK4 Motor relay: half-range power (certain models only)MOTOR_TY Motor triacON/OFF Main switch (programme selector)PWELW_TY Triac for pre-wash solenoid valveSerial interface Asynchronous serial interfaceWELV_TY Triac for washing solenoid valve

7 CONNECTORS ON CIRCUIT BOARD


61/64


J6 J2 J1 J3 J4 J5 J7J6-1: Heating element

(relay)J6-2: Door safetyinterlock (line)

J8J8-1 lineJ8-2 line (neutral)

J2-1 Door safety interlock

(line-sensing)J2-2 1st level(sensing)J2-3 (Anti-overflow

pressure switch)J2-4 Door safety interlock

(triac)J2-5 (Door safety

interlock)J2-6 (Anti-overflow

pressure switch)

J1-1 Motor (triac)

J1-2 Motor (stator fullrange)J1-3 Motor (stator - 1/2

range)J1-4 Motor (rotor)J1-5 Motor (rotor)

J3-1 Drain pump (line)

J3-2 Solenoids (line)J3-3 (line)J3-4 Drain pump (triac)J3-5 Pre-wash solenoid

(triac)J3-6 Washing solenoid

(triac)J3-7 Solenoids (line)J3-8 (Not used)

J4-1 Door closed pilot

lampJ4-2 Door closed pilotlamp

J5-1 NTC temperature

sensorJ5-2 NTC temperaturesensor

J5-3 Motor (tachymetricgenerator)

J5-4 Motor (tachymetricgenerator)

J5-5 (DSP drumpositioning system)

Serial interface:

J7-1 ASY_INJ7-2 ASY_OUTJ7-3 5VJ7-4 GND

Rear v iew

Front view

8 BURNING ON THE CIRCUIT BOARDIn case of burning on the main circuit board, check that the problem is not caused by another electrical component (short-circuits, poor insulation, water leakage). Refer

f f f


62/64


to the figures below in order to identify the component that might have caused the burning according to the position of the burned area.The circuit board shown below is the version with the greatest number of components: other boards may not feature all these components (relay K4 and buzzer).

8.1 COMPONENTS SIDE (common)

1. NTC washing temperature sensor2. Drain pump

3. Power supply4. Motor

5. Heating element6. Door safety interlock

7. Water fill solenoids8. Tachymetric generator (motor)9. Drum positioning system (top-loaders)

8.2 PUSHBUTTON LED SIDE (HORIZONTAL BUTTONS)


63/64


1. ---2. Drain pump3. Power supply4. Motor

5. Heating element6. Door safety interlock7. Water fill solenoids8. Tachymetric generator (motor)9. Drum positioning system (top-loaders)

8.3 PUSHBUTTON LED SIDE (VERTICAL BUTTONS)


64/64


1. ---2. Drain pump3. Power supply

4. Motor

5. Heating element6. Door safety interlock7. Water fill solenoids

8. Tachymetric generator (motor)9. Drum positioning system (top-loaders)

Documents

Elektrolux EWM 1000 Serwisówka