Electrolux EWM3500 Service Manual Download Page 8

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SOI/DT 2007-02 dmm

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599 38 61-92

3.2 CONTROL

PANEL

3.2.1 Styling

TC1

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max. 8 buttons

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15 or 21-position programme selector

•

LEDs

•

LCD

display

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Disposition of LEDs and buttons

Summary of Contents for EWM3500

Page 1: ... Spares Operations Italy Corso Lino Zanussi 30 Publication no I 33080 PORCIA PN 599 38 61 92 Fax 39 0434 394096 Edition 2007 02 13 EN Washing machines with electronic control system EWM3500 Technical and functional characteristics STYLING TC1 With cabinet ICON ...

Page 2: ...SOI DT 2007 02 dmm 2 66 599 38 61 92 ...

Page 3: ... 2 Volume 26 4 2 12 3 Time 27 4 2 12 4 Luminosity 28 4 2 12 5 Contrast 29 4 2 12 6 Resetting the settings 30 4 2 12 7 Delayed start 31 5 DIAGNOSTIC SYSTEM 32 5 1 Access to diagnostic mode 32 5 2 Exiting diagnostic mode 32 5 3 Diagnostic phases 33 5 3 1 Analysis of the LCD display during the diagnostic cycle 34 6 ALARMS 35 6 1 Displaying the alarms to the user 35 6 2 Reading the alarm codes 36 6 2 ...

Page 4: ...culation pump if featured 51 9 7 Heating 52 9 8 Temperature sensor 52 9 9 Three phase asynchronous motor 53 9 9 1 Power supply to motor 53 9 10 Anti foam control system 54 9 11 FUCS Fast Unbalance Control System 55 9 12 Table of alarm codes 57 10 Diagram with THREE PHASE ASYNCHRONOUS MOTOR 60 11 ACCESSIBILITY 62 11 1 To the electronic control system 62 11 1 1 Work top 62 11 1 2 Control panel 62 11...

Page 5: ... control panel and washing programmes technical and functional characteristics access to the electronic control system For detailed information concerning hydraulic circuit structural characteristics of the appliances and accessibility please refer to Service Manual Publication no 599 37 47 13 washing machines with HEC cabinet 2 PRECAUTIONS Electrical appliances must be serviced only by qualified ...

Page 6: ... During the delivery 2 2 During the reparation NEVER LAY DOWN THE APPLIANCE On the front side On the right side IT IS POSSIBLE TO LAY DOWN THE APPLIANCE On the left side On the rear side NEVER MOVE the appliance inclining it on the front side ...

Page 7: ... to 115 200 baud Power supply 220 240V 50 60 Hz configurable Type of washing Jet system Rinsing system Jet system Motor Two pole asynchronous with three phase tachometric generator with Inverter Spin speed 600 1800 g Anti unbalancing system FUCS Water fill 1 solenoid valve with 1 inlet 2 3 outlets Detergent drawer 3 compartments prewash stains wash conditioners 4 compartments prewash stains wash c...

Page 8: ...SOI DT 2007 02 dmm 8 66 599 38 61 92 3 2 CONTROL PANEL 3 2 1 Styling TC1 max 8 buttons 15 or 21 position programme selector LEDs 2 LCD display Disposition of LEDs and buttons ...

Page 9: ... 50 60 95 LANGUAGE VOLUME TIME SETTING LUMINOSITY CONTRAST 0 9 0 9 25 LANGUAGES 0 9 SETTING CANCELATION SPIN SELECTION 700 900 1000 1200 1400 1600 500 0 1800 PROGRAMME SELECTOR COTTON DELICATES SYNTHETICS WOOL HAND WASH LINGERIE MEMORIES BABY MINI 30 SILK COTTON ECO SYNTHETICS ECO SENSITIVE PLUS COTTON RINSES DELICATE RINSES DRAIN SOAK SPIN SHOES JEANS CHILD PROTECTION ON OFF LOGO MAIN INTERFACE O...

Page 10: ...priate language between a list of 25 languages Once the language has been chosen push OK 5 button twice The screen for the time setting is displayed The regulation is possible by pushing the 3 or 4 buttons respectively forward and backward If they are pushed in sequence the variation is of one minute while if they are pushed constantly the variation is of 10 minutes Push the OK 5 button to confirm...

Page 11: ...e used to define the washing programmes Types of fabric Cotton linen Synthetic fabrics Delicates Wool Hand wash Shoes Jeans Duvet Silk Special programmes Soak Miniprogramme Easy Iron Conditioner Rinses Delicate rinses Drain Delicate spin Spin Temperature Normal Maximum the initial temperature is the maximum that can be selected for a specific washing programme Spin Maximum Normal Minimum Spin redu...

Page 12: ...o the chosen temperature Button 2 SPIN The spin set by the programme is the base one Pushing button 2 the spin area is shown pushing it in sequence it is possible to modify the speed till zero to pass to NIGHT CYCLE and STOP WITH RINSE HOLD Buttons 3 4 OPTIONS Pushing buttons 3 or 4 it is possible to choose the options to combine with the chosen programme Pushing one of the buttons the time and op...

Page 13: ... selected options If the selected options are different the symbol dimensions will be proportionally reduced to the space available as represented in A two options B three options C four options Button 5 OK It modifies and confirms the changes Button 6 START PAUSE It has the START PAUSE option there are two LEDs one red which flashes in case of alarm and one green which flashes when the appliance ...

Page 14: ...r the whole duration of the programme Find below the different levels according to the soil degree ª Super quick super rapid cycle indicated for cottons and synthetics with light dirt level and for half load ª Quick cycle indicated for cottons and clothes used just once ª Light cycle indicated for cotton and synthetics for clothes slightly dirty or of daily use ª Daily cycle indicated for cotton s...

Page 15: ...er Four digits in the upper right side indicate the time to end of the cycle the four digits in the lower right side indicate the time at which the cycle terminates ª Water fill represented alternatively by a bubble movement and the name of the chosen programme ª Washing represented by a casual movement of bubbles ª Rinsing represented by a horizontal movement of bubbles like a wave ª Draining rep...

Page 16: ... duration of the programme could slightly vary thus causing the changing of the time to end proposed at the beginning of the cycle 4 2 6 Washing cycle in pause During the washing cycle the user can pause the washing programme pushing the button START PAUSE 6 The LCD display represents some information which button to push to continue the cycle START PAUSE 6 Some seconds after the symbol of cycle i...

Page 17: ...finished Simultaneously a melody starts to inform that the cycle is finished In the beginning it is quite frequent then it becomes less frequent for a max time of 3 minutes After some seconds the display shows that the open can be opened The user can deactivate the melody by turning the programme selector to position 0 zero 4 2 8 1 Stand by If the user does not push any button or does not turn the...

Page 18: ...ve with the lock symbol not crossed and the writing below is ON The user can continue to use the appliance because till button START PAUSE 6 is not pressed the Child Lock is not active Once the appliance has been locked this function remains active till the user unlocks it In this way the user can leave the washing machine with the door closed and the children do not get hurt nor can damage it Aft...

Page 19: ...appliance is new the memories are empty so the user needs to define them Select a programme Modify it if necessary Push buttons 3 or 4 scroll down the menu till SAVE FAVOURITE Push button OK 5 Choose which memory to use to memorize the personalized programme Push button OK 5 The writing SAVED appears If by mistake the user selects a position in which a programme has already been memorized the scre...

Page 20: ...u till WASH GUIDE Wait two second the writing changes to PUSH OK button 5 4 2 11 1 Temperature Guide The writing TEMP GUIDE appears Here the user can search for information about the temperatures to wash the clothes so as to select the best one Push button OK 5 The first description is shown Pushing buttons 3 or 4 all the descriptions for the various temperatures are displayed Waiting some seconds...

Page 21: ... GUIDE Wait two seconds the writing changes to PUSH OK button 5 Push buttons 3 or 4 and scroll down the menu till SPIN GUIDE Push button OK 5 The first description is displayed Pushing buttons 3 or 4 all the descriptions for the various spin speeds are displayed Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 or START PAUSE 6 the main screen is displayed again Pushing button OK 5 t...

Page 22: ... menu till WASH GUIDE Wait two seconds the writing changes to PUSH OK button 5 Push buttons 3 or 4 and scroll down the menu till OPTIONS GUIDE Push button OK 5 The first description is displayed Pushing buttons 3 or 4 the other descriptions for the information relative to each option are displayed Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 or START PAUSE 6 the main screen is d...

Page 23: ...ds the writing changes to PUSH OK button 5 Push buttons 3 or 4 and scroll down the menu till STAIN GUIDE Push button OK 5 The first description is displayed Pushing buttons 3 or 4 the other descriptions for the information relative to each type of stain are displayed Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 or START PAUSE 6 the main screen is displayed again Pushing button O...

Page 24: ...nd the spin cycle are excluded ª the water fill solenoids and the drain pump are disabled ª LCD it displays all the programme phases rapidly ª alarms for safety reasons the following groups of alarms remain enabled E40 door closed E50 motor and E90 communication between the boards configuration Push buttons 3 or 4 and scroll down the menu till WASH GUIDE Wait two seconds the writing changes to PUS...

Page 25: ... under the flag symbol starts to flash now it is possible to scroll down the list of the available languages pushing buttons 3 or 4 in sequence Choose the language and push button OK 5 Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 the main screen is displayed again Pushing button OK 5 the language is selected again Pushing button START PAUSE 6 the washing cycle starts To access r...

Page 26: ...ain screen is displayed again Pushing button OK 5 the volume is selected again Pushing button START PAUSE 6 the washing cycle starts SOUND The appliance features three types of melodies one for the switching on one for the programme start and one for the end of the washing cycle and a series of beeps in case of alarm ª Every time the appliance is switched on programme start ª When the appliance is...

Page 27: ...l down the menu till TIME Push button OK 5 The digits under the clock symbol start to flash Now it is possible to insert the day time pushing buttons 3 or 4 in sequence To confirm push button OK 5 Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 the main screen is displayed again Pushing button OK 5 the time is selected again Pushing button START PAUSE 6 the washing cycle starts ...

Page 28: ...git under the sun symbol starts to flash Now it is possible to vary the luminosity level pushing buttons 3 or 4 in sequence Simultaneously the LCD display varies and also the digit changes from zero to nine Confirm the luminosity level with button OK 5 Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 the main screen is displayed again Pushing button OK 5 the luminosity is selected a...

Page 29: ... digit under the symbol starts to flash Now it is possible to vary the contrast level pushing buttons 3 or 4 in sequence Simultaneously the LCD display varies and also the digit changes from zero to nine Confirm the contrast level with button OK 5 Waiting some seconds or pushing buttons TEMPERATURE 1 or SPIN 2 the main screen is displayed again Pushing button OK 5 the contrast is selected again Pu...

Page 30: ... 3 or 4 and scroll down the menu till SETTINGS Wait two seconds the writing changes to PUSH OK button 5 Push button 3 or 4 and scroll down the menu till RESET SETTINGS Wait two seconds the writing changes to PUSH OK button 5 After pushing OK the user is asked to confirm the choice It is possible to confirm pushing OK 5 or to cancel with buttons 3 or 4 If the choice is confirmed the LCD display sho...

Page 31: ...he time increases or decreases respectively with button 3 and 4 by thirty minutes for the first two hours and sixty minutes till the twenty hours are reached the max time available for the delayed start Holding down the button the variation accelerates To cancel the time of the delayed start just reset the set time Set the time push OK button 5 The main screen with the chosen options and the time ...

Page 32: ...Continue to hold down the buttons till the display lights up and the DIAGNOSTIC TEST appears In the first position the operation of the buttons the relative LEDs and the LCD display are checked turning the selector knob clockwise the diagnostic cycle for the operation of the various components and the alarm reading is activated 5 2 Exiting diagnostic mode To exit the diagnostic cycle switch the ap...

Page 33: ...ater level below anti flooding level Maximum time 5 minutes Water ducted through conditioner stains compartments Displays the water level in tub 6 Door interlock Wash solenoid if the level of water in the tub does not cover the heater Heating element Recirculation pump Door locked Water level above the heater Maximum time 10 minutes or up to 90 C Heating Recirculation Wash water temperature 7 Door...

Page 34: ...with different dimensions of all the display points Every time that during this test a button is pushed the test is interrupted and in the bottom centre the button codification in shown From position 2 to position 9 the display represents The temperature on the left lower side The drum speed in the centre The water level on the right In position 10 the reading alarm is shown ...

Page 35: ...arms displayed to the user are listed below ª E10 Water fill difficulty closed tap ª E20 Drain difficulty dirty filter ª E40 Door open They can be solved directly by the end user While the alarms listed below ª EF0 Water leakage Aqua Control System ª EH0 Voltage or frequency out of the normal values They are displayed to the user but for their solution it is necessary the intervention of the Servi...

Page 36: ...ure lower than 55 C Motor stopped Certain alarm conditions require that a drain phase be performed before the door can be opened for safety reasons Cooling water fill if the temperature is higher than 65 C Drain until the analogue pressure switch is on empty during a max 3 minute time 6 2 Reading the alarm codes It is possible to display the last three memorised alarms in the FLASH memory of the e...

Page 37: ...wn 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 flashing of all the LEDs user interface not configured 6 2 2 Examples of alarm 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 l...

Page 38: ... if in the programme selection phase maintains the previously selected options in memory 6 4 Cancelling the last alarm It is good practice to cancel the last alarm after reading the alarm code to check whether the alarm re occurs during diagnostics after repairing the appliance to check whether it re occurs during testing 1 Select diagnostic mode and turn the programme selector to the tenth positi...

Page 39: ...y The unit can count up to a maximum of 6550 hours of operating time Only the operating time of normal programmes and not diagnostic programmes is counted The actual operating time for the cycle is counted which does not include pauses delayed start time time of a stop with water in the drum and soaking phases The precision of the counter is 30 seconds per programme Only whole hours of operation a...

Page 40: ...50 650 850 1000 1200 1300 1400 1600 60 60 3 60 50E 42 50 50 40 42 30 30 Synthetic fabrics cold 20 3 Max 900 30 30 Mini Programme cold 20 3 Max 900 40 40 30 30 Delicates cold 20 3 450 700 40 38 30 33 Wool Hand wash cold 20 3 Max 1000 40 40 30 30 Shoes cold 20 3 Max 1000 60 60 50 50 40 40 30 30 Jeans cold 20 5 450 650 850 1000 1200 1300 1400 1600 Soak 30 20 Rinses 3 Max 1600 Conditioner 1 Max 1600 D...

Page 41: ...X 60 C X X X X X X X X X X X X X 50 C X X X X X X X X X X X X X 40 C X X X X X X X X X X X X X 30 C X X X X X X X X X X X Synthetic fabrics cold X X X X X X X X X X X 40 C X X X X X X X X X X X 30 C X X X X X X X X X X Delicates cold X X X X X X X X X X 40 C X X X 30 C X X X Wool Hand wash cold X X X 60 C X X X X X X X 50 C X X X X X X X 40 C X X X X X X X 30 C X X X X X X X Easy iron cold X X X X...

Page 42: ... X X Express 60 C X X X X 90 C X X X X X X X X X X X X X X X 60 C X X X X X X X X X X X X X X X 50 C X X X X X X X X X X X X X X X 40 C X X X X X X X X X X X X X X X 30 C X X X X X X X X X X X X X X Sensitive plus cold X X X X X X X X X X X X X X Rapid 30 C X X X 40 C X X X X X X X X 30 C X X X X X X X X Viscose cold X X X X X X X X Soak 30 C X Rinses X X X X X X Delicates Rinses X X X X Condition...

Page 43: ...ight cycle Pre wash Stains Bleach Extra rinse Easy iron Economy Intensive Normal Daily Light Super Quick Reduced spin speed No spin Half load Rinse hold Rinse hold X X X X X X X X X X X X X Night cycle X X X X X X X X X X X X Pre wash X X X X X X X X X X X X X X Stains X X X X X X X X X X X X X X Bleach X X X X X X X X X X X X X Super rinse X X X X X X X X X X X X X X X X Easy iron X X X X X X X X...

Page 44: ...k time from 30min to 10 hours This option cannot be selected for WOOL and HAND WASH cycles Stains Adds a 5 minute motor movement phase after heating to 40 C Ducts water to the pre wash stains compartment in order to introduce the special stain removal product This option cannot be selected for DELICATES WOOL and HAND WASH cycles Bleach Ducts water through the bleach compartment at the beginning of...

Page 45: ... cycle Intensive Performs a specific intensive cycle Daily Modifies the structure of the COTTON SYNTHETICS DELICATES cycles to obtain a good washing performance with a short time Light Modifies the structure of the wash phase of the COTTON SYNTHETICS DELICATES cycles in a short time Short Modifies the structure of the COTTON SYNTHETICS DELICATES cycles to obtain very short washing times optimized ...

Page 46: ...ent phase and sub phase Ö Machine status used to perform special cycles such as Electrical test used in the assembly line Continuous cycles used in the factory workshop Ö Machine configuration the data contained in the EEPROM define the characteristics of the model and are interpreted by the function software The variables are as follows Type of appliance front loader top loader compact Type of do...

Page 47: ...for half range operation of the motor Structure of the washing group Control parameters for the FUCS anti unbalancing system Water fill control algorithm Alarm control system Sensor parameters flowmeter etc 9 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 ...

Page 48: ...rogramme is started by pressing the START PAUSE button the bi metal 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 ª The door interlock prevents aperture of the door while the appliance is in operation ª At the end of the washing programme the PCB disconnects the int...

Page 49: ...witch contacts 4 5 thus applying power to all components on the appliance ª When the programme ends the main board sends two additional 20 msec pulses 200 msec apart the first pulse does not unlock the door the second pulse which is sent only if the appliance is operating properly unlocks the door lock device and simultaneously opens the contacts on the main switch 9 2 2 2 Conditions required for ...

Page 50: ...the water level in the tub used in the models with electronic control and it is directly connected to the main PCB ELECTRONIC PRESSURE SWITCH Electronic pressure switch Electric symbol The pressure switch is connected by a hose to the pressure chamber When the tub is filled with water the pressure created inside the hydraulic circuit expands the diaphragm This in turn modifies the position of the ...

Page 51: ...il the electronic pressure switch closes on empty after which the pump is actioned for a brief period or passes to the subsequent phase for a pre determined period and eventually an alarm appears 9 6 Recirculation pump if featured On jetsystem models the main board powers the recirculation pump through a triac 17 Drain pump 18 Thermal protector 20 PCB ...

Page 52: ...ure degree exceeds the values by which they are calibrated WARNING In case of replacement of the heater replace it with one with the same characteristics in order not to compromise the safety of the appliance 9 8 Temperature sensor The temperature is controlled by the PCB by means of a NTC temperature sensor incorporated in the heating element 1 NTC resistor 2 Metallic capsule 3 Terminals 4 Plasti...

Page 53: ...3 on the motor nodes V W U where the windings Y X Z are connected The phase shift between the phases is 120 and peak amplitude is 310V The condition of the motor can be determined by measuring the resistance of the windings Winding y ohm 5 4 7 contacts 2 3 Winding x ohm 5 4 7 contacts 1 2 Winding z ohm 5 4 7 contacts 1 3 Winding T tachometric ohm 121 7 contacts 4 5 The electrical components must b...

Page 54: ...se is interrupted the drain pump continues to operate and when the contact returns to EMPTY the spin phase is resumed Spin with excessive foam in the tub critical situation The control system detects whether the electronic pressure switch commutates 5 times to FULL In this case the spin phase is skipped and a one minute drain cycle is performed with the motor switched off in the case of a washing ...

Page 55: ...ompletely balanced ª Correct balancing of the load occurs at 115 RPM After this speed is reached the spin cycle begins The unbalance control procedure may be performed in a number of phases Each phase involves ª an unbalancing rating 0 1 2 3 ª an unbalancing threshold ex 350 650 850 1200g ª a timeout Conclusion of the FUCS procedure The FUCS procedure is considered to be concluded when ª The speed...

Page 56: ...ng in the longest interval of time available Phase Unbalance rating Time out sec 1 0 60 2 1 120 3 2 60 4 3 90 5 1 120 6 2 60 7 3 90 An example of unbalancing after all FUCS phases have been performed In this case the spin or pulse operation is skipped 1 2 3 4 5 6 7 ...

Page 57: ...itch pressure switch Wiring main board Cycle is paused START RESET 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 to operate 5 min on then 5 min off etc RESET E38 Water circuit on pressure switches Pressure switches Motor belt broken Heating phase is skipped ON O...

Page 58: ...RESET E61 NTC sensor faulty heating element faulty wiring faulty PCB faulty The heating phase is skipped START RESET E62 NTC sensor faulty heating element faulty wiring faulty PCB faulty Safety drain cycle Cycle stopped with door open RESET E66 PCB faulty Safety drain cycle Cycle stopped with door open RESET E68 Earth leakage between heater and earth Cycle blocked with door open RESET E71 Faulty N...

Page 59: ... Cycle stopped with door open RESET EC1 Solenoid valve faulty blocked PCB faulty Cycle interrupted with door closed Drain pump functions always 5 min then it stops for 5 min etc RESET EC3 Wiring faulty Weight sensor faulty PCB faulty START RESET EF1 Drain tube blocked kinked too high Drain filter dirty blocked Warning displayed at the end of cycle specific LED START RESET EF2 Excessive detergent d...

Page 60: ...SOI DT 2007 02 dmm 60 66 599 38 61 92 10 Diagram with THREE PHASE ASYNCHRONOUS MOTOR ...

Page 61: ...d valve for bleach 8 Heating element with thermofuses 9 Door interlock instantaneous 10 Suppressor 15 Drain pump 16 Thermal cut out drain pump 17 Recirculation pump 18 Thermal cut out recirculation pump 19 Door interlock with PTC 20 PCB 23 Inverter 24 Three phase motor DOOR_TY Door interlock Triac DRAIN_TY Drain pump Triac REC TY Recirculation pump Triac K1 Heating element relay ON OFF Main switch...

Page 62: ...panel towards the rear and release from the cabinet 11 1 2 Control panel b Press the drawer lock c Extract d Remove the screw which secures the control panel to the dispenser e Remove the clamp which secures the wiring to the board casing f Release the wiring from the clamp under the dispenser After releasing the wiring from the fixing hooks d f e b c ...

Page 63: ...ch secure the cross member to the control panel k Release the hook which secures the control panel to the cross member l Turn and insert a protection between the control panel and the surface which you lean it on to avoid damaging it m To extract the board remove the screws which secure it to the control panel n To remove the button springing system release the two hooks which secure it to the mai...

Page 64: ... interlock a Remove the ring that secures the bellow gasket to the cabinet b Remove the bellow gasket c Remove the screw which secures the door interlock to the front side d Push inside the hook e Push it upwards f Extract the door interlock f c d e ...

Page 65: ...liance because it is locked To empty the drain circuit b Remove the cap in the filter knob after positioning a vessel to collect the water c Turn the cap left to align the two references the arrow in the cap and the reference point in the filter body so as to allow extracting the filter d Extract the filter r d New drain filter c ...

Page 66: ...SOI DT 2007 02 dmm 66 66 599 38 61 92 11 4 Inverter board a Release the hook b Push the hook inside extract it c Push the wing which secures the board the cabinet a b ...

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