Electrolux EWM1100 Service Manual Download

Page: 48 / 59

2007-10 SOI/DT-mdm FCPD-dp Quality-fz

48/59

599 70 32-47

YES

E74

E74: NTC sensor wrongly positioned

E74

Tests to be performed:

Perform

phase 6

of the diagnostic cycle

and wait until the fill ends. Remain in this

phase for five minutes. Switch the

appliance off and measure the value of

the NTC sensor across contacts J9-8 and

J9-9 of the wiring connector

(fig. 4)

Is the value lower than 5 K

!!ATTENTION!!

DRAIN WATER FROM TUB BECAUSE

IT IS BOILING

Measure the value of the NTC sensor

(5.7÷6.3K

at 20°C) across contacts J9-

8 and J9-9 of the wiring connector

(fig.

4).

Is the value correct?

Is the sensor correctly positioned?

-see fig.17-

Position the sensor again into its seat

and restart the diagnostic cycle to check

for further alarm conditions.

Replace the sensor and restart the

diagnostic cycle to check for further

alarm conditions.

Replace the sensor and restart the

diagnostic cycle to check for further

alarm conditions.

Replace the circuit board and restart the

diagnostic cycle to check for further

alarm conditions.

J10

J2 J1

Fig.4

If there are traces of burning on the

circuit board, refer to page

Fig.17

Circuit
board

Summary of Contents for EWM1100

Page 1: ... PRODUCTS ITALY S p A Spares Operations Italy Corso Lino Zanussi 30 Publication number I 33080 PORCIA PN ITALY 599 70 32 47 Fax 39 0434 394096 Edition 2007 10 16 EN Washing machines Guide to diagnostics ENV06 of electronic controls EWM1100 ...

Page 2: ...2007 10 SOI DT mdm FCPD dp Quality fz 2 59 599 70 32 47 ...

Page 3: ... Door open 30 E42 Problems with door aperture 32 E44 Door closure sensing circuit faulty 34 E45 Problems with the sensing circuit of the triac that actions the door interlock 34 E51 Motor power triac short circuited 35 E52 No signal from the motor tachometric generator first part 36 E52 No signal from the motor tachometric generator second part 38 Procedure for checking the commutator motors 39 E5...

Page 4: ...2007 10 SOI DT mdm FCPD dp Quality fz 4 59 599 70 32 47 8 BASIC CIRCUIT DIAGRAM 56 8 1 1 Key to circuit diagram 57 9 CONNECTORS ON CIRCUIT BOARD 58 10 BURNING ON THE CIRCUIT BOARD EWM1100 59 ...

Page 5: ...gineers 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 page 6 7 and access the diagnostic cycle See page 8 2 Read the alarm code stored in memory page 11 and refer to the instructions for the corresponding alarm code page 14 15 3 Cancel the alarm stored in memory pa...

Page 6: ... DT mdm FCPD dp Quality fz 6 59 599 70 32 47 2 CONTROL PANELS OF FRONT LOADING APPLIANCES TC5 ELECTROLUX TC6 A5 AF1 A1 2 SMART ACTION A6 AF2 A2 1 C6 2 CF1 CF2 SMART CATALOGUE C6 1 Z5 SMART ZANUSSI Z6 AEG 07 SERIE5 ...

Page 7: ...2007 10 SOI DT mdm FCPD dp Quality fz 7 59 599 70 32 47 3 CONTROL PANELS OF TOP LOADING APPLIANCES TC5 ELECTROLUX TC6 A1 2 SMART ACTION A2 0 SMART CATALOGUE C1 2 ...

Page 8: ...he appliance on by turning the programme selector one position clockwise 4 Continue to hold down the buttons until the LEDs begin to flash at least 2 seconds 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 alarm codes 4 2 Exiting the diagnostic sy...

Page 9: ...an anti overflow level Maximum time 5 minutes Water ducted through conditioner compartment 6 Door safety interlock Wash solenoid if the water in the tub is below 1st level Heating element Door locked Water level 1st level Maximum time 10 minutes or up to 90 C 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 impuls...

Page 10: ...ª Irregular frequency of the electric network are displayed to the user but for their solution it is necessary the intervention of the Service The alarms are enabled during the execution of the washing programme with the exception of alarms associated with configuration and the power supply voltage frequency which are also displayed during the programme selection phase The door can normally be ope...

Page 11: ...TART PAUSE button with yellow and red light 0 5 seconds on 0 5 seconds off with a 2 5 second pause between the sequences button indicator START PAUSE with yellow light indicates the first digit of the alarm code family button indicator START PAUSE with red light indicates the second digit of the alarm code internal number of the family These two LEDs are featured in all models Other versions The a...

Page 12: ...arm display Example Alarm E43 problems with the door interlock Triac will display the following the sequence of four flashes of the START PAUSE button with red light indicates the first number E43 the sequence of three flashes of the START PAUSE button with green light indicates the second number E43 5 2 3 Operation of alarms during diagnostics All alarms are enabled during the components diagnost...

Page 13: ... button The alarm sequence continues as long as the two buttons are held down The alarm reading system is as described in paragraph 5 2 1 While the alarms are displayed the appliance continues to perform the cycle or if in the programme selection phase maintains the previously selected options in memory 5 4 Cancelling the last alarm It is good practice to cancel the last alarm after reading the al...

Page 14: ...door locked RESET 25 E32 Drain tube kinked clogged improperly positioned Drain filter clogged dirty Drain pump faulty Water circuit on pressure switch pressure switch Wiring main board Cycle is paused START RESET 26 E35 Water fill solenoid valve is faulty Leaks from water circuit on pressure switch Pressure switch faulty Wiring faulty PCB faulty Cycle stops Safety drain cycle Drain pump continues ...

Page 15: ...START RESET 50 E93 Incorrect configuration data PCB faulty Cycle interrupted OFF ON 51 E94 Incorrect configuration data PCB faulty Cycle interrupted OFF ON 51 E97 Faulty PCB Wrong configuration data Cycle interrupted RESET 51 EA1 Wiring faulty Circuit board faulty DSP sensor faulty Motor drive belt broken Drum positioning phase skipped ON OFF RESET 52 EA6 Basket cover open Motor faulty Wiring faul...

Page 16: ...mode until the mains frequency or voltage are restored 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 diagnostic procedure cannot be accessed and the rapid alarm display function cannot be used The complete alarm code can be read only when the abnormal situation has ceased Alarms E51 E52 During the diagnostic test...

Page 17: ...1 U3 2 OK No Replace or repair the wiring Yes Does the programme selector function correctly No Replace or repair the knob or knob spindle Yes Replace the circuit board and perform the diagnostic programme 6 1 2 Some of the LEDs of the circuit board light Do the keys move without hindrance in the housings in the control panel and correctly action the corresponding buttons No Solve the mechanical p...

Page 18: ...rcuit of the pressure switch efficient leaks blockage Fig 2 NO Check that the tap is open that the mains water pressure is sufficient and that the hoses are correctly connected and not kinked Do any or all the solenoids fail to function NO Replace the solenoid and restart the diagnostic cycle to check for further alarm conditions Is the ohmic resistance of the solenoid about 3 5 4 5 KΩ measure dir...

Page 19: ...0 SOI DT mdm FCPD dp Quality fz 19 59 599 70 32 47 E11 Fig 1 J9 J10 J7 J2 J1 U3 Fig 4 3500 4000 Ω 3500 4000 Ω 3500 4000 Ω 3500 4000 Ω 3500 4000 Ω 3500 4000 Ω Circuit board Fig 3 Fig 2 J9 J10 J7 J2 J1 U3 Fig 4 ...

Page 20: ... switch efficient leaks blockage fig 2 NO Check that the tap is open that the mains water pressure is sufficient and that the hoses are correctly connected and not kinked Do any or all the solenoids fail to function YES NO Replace the solenoid and restart the diagnostic cycle to check for further alarm conditions Is the ohmic resistance of the solenoid about 3 5 4 5 KΩ measure directly on the sole...

Page 21: ...2007 10 SOI DT mdm FCPD dp Quality fz 21 59 599 70 32 47 E13 Fig 1 J9 J10 J7 J2 J1 U3 Fig 4 3500 4000 Ω 3500 4000 Ω Circuit board 3500 4000 Ω 3500 4000 Ω Fig 2 Fig 3 ...

Page 22: ...pump and restart the diagnostic cycle to check for further alarm conditions Is the ohmic resistance of the pump about 155 200Ω measure directly on the pump see fig 5 YES Check and if necessary replace the wiring and restart the diagnostic cycle to check for further alarm conditions Is the pump impeller jammed or broken Is the hydraulic circuit of the pressure switch efficient i e not obstructed Re...

Page 23: ...2007 10 SOI DT mdm FCPD dp Quality fz 23 59 599 70 32 47 E21 Fig 1 J9 J10 J7 J2 J1 U3 Fig 4 fig 5 155 200Ω 155 200Ω Circuit board ...

Page 24: ...eplace the wiring and restart the diagnostic cycle to check for further alarm conditions Measure across connectors J7 1 J7 9 and the structure of the appliance fig 6 Is there current leakage Replace the main circuit board and restart the diagnostic cycle to check for further alarm conditions Replace the pump and restart the diagnostic cycle to check for further alarm conditions fig 5 J9 J10 J7 J2 ...

Page 25: ...Measure a close circuit across J10 1 J10 2 J10 3 and the connector on analogic pressure switch they are 3 independent connections see fig 7 Is the cable between main board and analogic pressure switch OK and connected correctly on both sides Reconnect and or replace the cable and restart the diagnostic cycle to check for further alarm conditions Replace the analogic pressure switch and restart the...

Page 26: ...f the analogic pressure switch E32 Tests to be performed NO Clean change the hoses and or air trap system and repeat completely the diagnostic cycle to check for further alarm conditions Select a washing cycle After few minutes did the machine fill with water and the motor is turning Check the draining system filter drain pump drain hose Is the machine draining correctly Clean the draining system ...

Page 27: ...tely the diagnostic cycle to check for further alarm conditions Replace the inlet valves and repeat completely the diagnostic cycle to check for further alarm conditions Get inside diagnostic cycle at step 8 After door lock is the machine also filling water Replace the analogic pressure switch and run the diagnostic cycle to check for further alarm conditions Is the cable between main board and an...

Page 28: ...easure across connector J7 2 and the machine structure and across connector J7 8 and the machine structure are there any current leakage see fig 6 Replace the analogic pressure switch and run again the diagnostic cycle to check for further alarm conditions Check replace the wiring and run the diagnostic cycle again to check for further alarm conditions E38 Pressure chamber blocked E38 The analogic...

Page 29: ... dp Quality fz 29 59 599 70 32 47 E3A E3A Problems with Sensing circuit of the heating element relay E3A Tests to be performed Replace the circuit board and run the diagnostic cycle again to check for further alarm conditions ...

Page 30: ...ween wires J1 3 and J1 1 the circuit must NOT be open measure the resistive value of the PTC between wires J1 3 and J1 2 the circuit must be OPEN Replace the door interlock and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions Replace the door locking device Does the appliance function ...

Page 31: ...2007 10 SOI DT mdm FCPD dp Quality fz 31 59 599 70 32 47 E41 fig 9 If there are traces of burning on the circuit board refer to page 59 J9 J10 J7 J2 J1 U3 Fig 4 Circuit board n Ω Ω ...

Page 32: ...d J1 1 the circuit must NOT be open measure the resistive value of the PTC between wires J1 3 and J1 2 the circuit must be OPEN Replace the door interlock and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions Replace the door locking device Does the appliance function correctly Is the d...

Page 33: ... OK To check the wiring with the door open measure the following wiring connectors fig 4 between wires J1 3 and J1 1 the circuit must NOT be open measure the resistive value of the PTC between wires J1 3 and J1 2 the circuit must be OPEN Replace the door interlock and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to che...

Page 34: ...45 E45 Problems with the sensing circuit of the triac that actions the door interlock E45 Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions If there are traces of burning on the circuit board refer to page 59 ...

Page 35: ...tor shield see fig 10 Is there current leakage Reconnect the connector J7 to the circuit board detach the connector from the motor and perform phase 8 of the diagnostic cycle Does E51 alarm appear again Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions E52 ...

Page 36: ...d restart the diagnostic cycle to check for further alarm conditions Replace the motor or the tachometric generator and restart the diagnostic cycle to check for further alarm conditions Measure across the same terminals of the wiring connector J7 7 and J7 8 and the structure of the appliance Is there any current leakage see fig 6 Check for the positioning of the tachometric generator Is it correc...

Page 37: ...2007 10 SOI DT mdm FCPD dp Quality fz 37 59 599 70 32 47 E52a fig 10 fig 12 fig 6 fig 11 J9 J10 J7 J2 J1 U3 Fig 4 Circuit board ...

Page 38: ... be as in 4 B Stator across J7 1 and J7 5 if present the value must be as in step 4 D stator range across J7 2 and J7 4 the value must be as in step 4 C rotor Are these values correct Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Check the motor as described on page 39 Is the motor OK The motor does not rotate at all NO Replace the motor and resta...

Page 39: ... 1 Check the connector blocks wiring and check for detached or bent terminals 2 Check for traces residue or deposits of water or detergent on the motor and identify the source 3 Check for windings or other parts that may be grounded or poorly insulated Use a tester with a minimum scale of 40 MΩ between each terminal and the casing this should read fig 10 4 Check each winding against the values sho...

Page 40: ...53 Problems with the Sensing circuit of the triac which powers the motor E53 Tests to be performed Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions If there are traces of burning on the circuit board refer to page 59 ...

Page 41: ...tor J7 2 J7 8 and the structure of the appliance see page 39 point 3 Is there any current leakage see fig 9 Detach the connector from the motor and measure across the terminals and the motor shield see fig 10 Is there any current leakage Replace the motor and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for fu...

Page 42: ...7 and 6 3 KΩ at 20 C Detach the connector and measure the value directly on the NTC sensor Is the value correct see fig 14 between 5 7and 6 3 KΩ at 20 C Replace the NTC temperature sensor and restart the diagnostic cycle to check for further alarm conditions Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the dia...

Page 43: ... Detach the connector and measure across the heating element and the ground contact see fig 15 Is the circuit open Replace the heating element and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions Detach the connector and measure directly on the NTC sensor see fig 14 Is the value correc...

Page 44: ... Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Detach the connector and measure across the heating element and the ground contact fig 15 Is the circuit open Replace the heating element and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for further alarm conditio...

Page 45: ...rent E68 Tests to be performed Circuit board Detach the connector and measure across the heating element and the ground contact see fig 15 Is the circuit open Replace the heating element and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions Replace the circuit board and restart the diag...

Page 46: ...W Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Measure the ohmic value directly on the terminals of the heating element detach the connectors see fig 13 Is the value correct 26 28Ω for 230V 1950W 28 31 for 240V 1950W Replace the heating element and restart the diagnostic cycle to check for further alarm conditions Check replace the wiring and res...

Page 47: ...k for further alarm conditions Measure across terminals J9 9 J9 8 of the connector and the structure of the appliance see fig 6 Is there any current leakage Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions Detach the connector and measure directly across the terminals of the NTC sensor and the structure of the appliance there must be water in the tub ...

Page 48: ...alue of the NTC sensor 5 7 6 3KΩ at 20 C across contacts J9 8 and J9 9 of the wiring connector fig 4 Is the value correct Is the sensor correctly positioned see fig 17 Position the sensor again into its seat and restart the diagnostic cycle to check for further alarm conditions Replace the sensor and restart the diagnostic cycle to check for further alarm conditions Replace the sensor and restart ...

Page 49: ...the appliance OFF selector position 0 Do any LEDs light Switch the appliance on and turn the programme selector to every position Wait 10 seconds at each position before passing to the next one Does alarm E82 reappear Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Replace the circuit board and restart the diagnostic cycle to check for further alarm...

Page 50: ...d in configuration data or configuration error E83 Switch the appliance on and turn the programme selector to every position Wait 10 seconds at each position before passing to the next one Does alarm E83 reappear Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions NO Restart the diagnostic cycle to check for further alarm conditions YES ...

Page 51: ...uence between selector version and configuration data E97 Difference between the configuration data for the programmes and those for recognition of the selector E97 Possible configuration error Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Possible configuration error Replace the circuit board and restart the diagnostic cycle to check for further ...

Page 52: ...irectly on the sensor circuit closed when on the normal section of the pulley fig 18 circuit open when on the ferrite plate fig 19 Is the sensor efficient Replace the positioning sensor and restart the diagnostic cycle to check for further alarm conditions YES Replace the connector and measure across J12 1 and J12 3 on the wiring connector when the drum is rotated the circuit should open and close...

Page 53: ...rect see page 39 Step 4 phase A YES Check replace the wiring and restart the diagnostic cycle to check for further alarm conditions Replace the motor or the tachometric generator and restart the diagnostic cycle to check for further alarm conditions Measure across the same terminals of the wiring connector J7 7 and J7 8 and the structure of the appliance Is there any leakage see fig 6 Check for th...

Page 54: ...re interference in the power line or is the mains voltage outside the correct limits Replace the circuit board and restart the diagnostic cycle to check for further alarm conditions Have the user check and if necessary repair the domestic power supply circuit Important The appliance remains in alarm mode until the frequency returns to the correct value or the appliance is switched off programme se...

Page 55: ... cycle The machine has detected long draining phases during the cycle Es More then 20 seconds during draining after rinsing phase Check clean the drain filter Overdosing of detergent The system has detected an over foaming during draining phases Advice Customer to use the right quantity of detergent and verify that drain filter and drain system are clean Load too unbalanced The machine has detecte...

Page 56: ...2007 10 SOI DT mdm FCPD dp Quality fz 56 59 599 70 32 47 8 BASIC CIRCUIT DIAGRAM ...

Page 57: ...ut motor 10 Tachometric generator motor 11 Interference filter 12 Door lock unit 13 Heating element with thermal fuses 14 Motor with half field 15 Motor without half field 16 Circuit board 17 Drum sensor position DSP DOOR_TY Door interlock Triac DRAIN_TY Drain pump Triac K1 Heating element relay K2 Motor relay clockwise rotation K3 Motor relay anti clockwise rotation K4 Motor relay half field powe...

Page 58: ... J10 3 Analogic pressure switch signal J9 1 Washing solenoid triac J9 3 Solenoids line J9 4 Solenoids line J9 6 Pre wash solenoid triac J9 8 NTC temperature sensor J9 9 NTC temperature sensor J7 1 Drain pump line J7 2 Motor stator field J7 3 Motor stator full field J7 4 Motor rotor J7 5 Motor rotor J7 6 Motor triac J7 7 Motor tachometric generator J7 8 Motor tachometric generator J7 9 Drain pump t...

Page 59: ...gures 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 1 Power supply 2 Motor 3 Heating element 4 Drain pump 5 Door safety interlock 6 Tachometric generator motor 7 Water fill solenoids 8 NTC te...

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Electrolux EWM1100, Service Manual

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