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SOI/DT 2010-03 dmm

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599 72 84-41

11

TECHNICAL

CHARACTERISTICS

11.1 Electronic control system memory

11.1.1 General structure of the memory system

The system features a FLASH memory inside the micro-processor, which allows the recording of the
configuration data, the description of the cycle, the status of the appliance in the event of a power failure and
the alarms.

11.1.2 FLASH

This area of the memory contains the "firmware" code comprising the appliance functions:

Ö

Control of electric loads (motor, pump, solenoid valves, etc.)

Ö

Control of the sensors (pressure switches, motor speed, door status, etc.)

Ö

management of the user interface;

Ö

management of the serial port;

Ö

management of power failures and alarms;

Ö

Execution of the washing programme

Ö

Power failure, i.e. the information necessary to restart the appliance in the event of a power failure:

-

Selected cycle and options

-

Current phase and sub-phase

Ö

Appliance status, used to perform special cycles, such as:

-

Electrical test (used on the assembly line)

-

Continuous cycles (used in the factory workshop)

Ö

Appliance configuration: the data contained in this portion of the memory defines the characteristics of the
model and is interpreted by the function software. The variables are as follows:

-

Type of appliance (front-loader, top-loader, compact)

-

Type of door interlock (PTC or instantaneous)

-

Anti-flooding safety device

-

Transmission ratio between drum pulley and motor pulley

-

Structure of the washing group

-

Power supply frequency (50 or 60 Hz)

-

Type of PCB (horizontal or vertical buttons)

-

Detergent dispenser (3 or 4 compartments)

-

Final spin speed (600

÷

1,400 rpm)

Ö

Identification of the appliance:

-

Prod.

No.

-

ELC

-

Serial

Number

Ö

Configuration of the user interface:

-

Programmes on main selector

-

Function of secondary selector (where featured)

-

Number and functions of buttons

-

LED

functions

-

Buzzer

operation

External

asynchronous

serial port

FLASH RAM

μ

P

Power Fail and

appliance status

Appliance

configuration

Cycle

description

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Summary of Contents for TC2

Page 1: ...tions Italy Corso Lino Zanussi 30 Publication number I 33080 PORCIA PN 599 72 84 41 Fax 39 0434 394096 S O I Edition 03 2010 EN Washing machines Washer dryers with electronic control system EWM21xx EWM25xx Functional and technical characteristics ENV06 Styling TC 4 3 2 Time manager 1 2 ...

Page 2: ...SOI DT 2010 03 dmm 2 78 599 72 84 41 ...

Page 3: ...l characteristics WD 24 5 2 CONTROL PANEL 25 5 2 1 Styling TC2 TIME MANAGER 25 5 2 1 1 Control panel configuration 26 5 2 1 2 Programme selector S1 26 5 2 1 3 Programme configuration 26 5 2 1 4 Pushbuttons and LCD display 27 5 2 1 5 Time MANAGER 28 5 2 1 6 LCD display 29 5 2 2 Styling TC2 PROPORTIONAL 30 5 2 2 1 Control panel configuration 30 6 DEMO MODE SETTING 31 6 1 Exiting DEMO mode 31 7 DIAGN...

Page 4: ...pump 52 11 6 Circulation pump where featured 52 11 7 Heating 53 11 8 Temperature sensor 53 11 9 Universal motor EWM 21xx 54 11 9 1 Power supply to motor 54 11 10 Three phase asynchronous motor EWM 25xx 54 11 10 1 Power supply to motor 54 11 11 Anti foam control system 55 11 12 FUCS 56 12 DRYING CIRCUIT 58 12 1 Temperature control 59 12 2 Alarm Summary Table 60 13 DIAGRAMS 65 13 1 WM diagram with U...

Page 5: ...esentation Service Manual Publication no 599 37 47 13 for HEC washing machines Publication no 599 70 40 15 for HEC RIM ARCHED washer dryers Identification table between styling TC2 3 4 and functionality EWM 21xx 25xx EWM 21xx EWM 25xx Styling Washing type Motor Washing type Motor TC2 Traditional with ECO BALL Jet System Universal Traditional with ECO BALL Jet System Three phase asynchronous with I...

Page 6: ...e Traditional with Eco ball sphere Jet System Rinsing system Traditional with Eco ball sphere Jet System Motor Collector with tachometric generator Two pole asynchronous with three phase tachometric generator with Inverter Spin speed 600 1 600 rpm Anti unbalancing system FUCS for universal motors AGS for asynchronous motors with Inverter Water fill 1 solenoid valve with 1 inlet 2 or 3 outlets Dete...

Page 7: ...nerator with Inverter Spin speed 600 1 600 rpm Anti unbalancing system FUCS for universal motors AGS for asynchronous motors with Inverter Water fill 1 solenoid valve with 1 inlet 2 or 3 outlets Detergent dispenser 3 compartments pre wash stains wash conditioner 4 compartments pre wash wash conditioner bleach Control of water level in the tub Electronic analogue pressure switch Door safety interlo...

Page 8: ...SOI DT 2010 03 dmm 8 78 599 72 84 41 3 2 CONTROL PANEL 3 2 1 Styling TC4 WM WD max 5 buttons 15 or 21 position programme selector 14 LEDs LCD display Positioning of LEDs and buttons ...

Page 9: ...arameters that can be 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 Drying Temperature Normal Maximum the initial temperature is the maximum that can be selected for a specific washing programme Spin Norma...

Page 10: ...ton no 3 this button is configurable and is related to LED L14 it performs the super rinse function Button no 4 this button is configurable and has the function of START PAUSE inside there are two LEDs one red that flashes in the event of an alarm and one green that flashes when the appliance is in pause mode or in combination with the red one to indicate the alarm code Button no 5 this button is ...

Page 11: ...e End of cycle Lights when the programme has been completed and the door has been released Door locked Lights when the safety device stops the door opening and switches off when it is possible to open it Flashes when the device is about to unlock the door with door interlock with PTC which needs one or two minutes to open Child lock Lights when the child safety is on and all buttons are deactivate...

Page 12: ...nce operation simultaneously to the displaying of the code the START PAUSE button flashes Buzzer configurable The buzzer emits A beep when the programmes or an option are selected when the START PAUSE button is pressed to start or pause the cycle Three beeps when an option not compatible with the selected programme is chosen or when a button is pressed or a knob turned during a cycle A particular ...

Page 13: ...Hz configurable Washing type Traditional with Eco ball sphere Jet System Rinsing system Traditional with Eco ball sphere Jet System Motor Collector with tachometric generator Universal Two pole asynchronous with three phase tachometric generator with Inverter Spin speed 600 1 600 rpm Anti unbalancing system FUCS for universal motors AGS for asynchronous motors with Inverter Water fill 1 solenoid v...

Page 14: ...th three phase tachometric generator with Inverter Spin speed 600 1 600 rpm Anti unbalancing system FUCS for universal motors AGS for asynchronous motors with Inverter Water fill 1 solenoid valve with 1 inlet 2 or 3 outlets Detergent dispenser 3 compartments pre wash stains wash conditioner 4 compartments pre wash wash conditioner bleach Control of water level in the tub Electronic analogue pressu...

Page 15: ...T 2010 03 dmm 15 78 599 72 84 41 4 2 CONTROL PANEL 4 2 1 Styling TC3 TIME MANAGER max 8 buttons 15 or 21 position programme selector 18 LEDs LCD display Version WM Version WD Positioning of LEDs and buttons ...

Page 16: ...ance is switched off and the current programme is cancelled For each programme the compatible options and other parameters are defined 4 2 1 3 Programme configuration The table below lists the parameters that can be 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 Con...

Page 17: ...utton is configurable and is related to LED DL11 in washing machines Depending on the configuration of the appliance it can perform the function of Normal daily light quick super quick intensive economy pre wash easy iron bleach stains super rinse night cycle rinse hold half load reduced spin speed no spin In washer dryers it is related to LEDs DL11 DL13 and performs the function of automatic dryi...

Page 18: ...so perform the function of delayed start Button no 6 this button is configurable and has the function of START PAUSE inside there are two LEDs one red that flashes in the event of an alarm and one green that flashes when the appliance is in pause mode or in combination with the red one to indicate the alarm code DL16 Door locked Lights when the safety device stops the door opening and switches off...

Page 19: ...aphic of the LCD display for both versions after the COTTON programme has been selected as an example Time MANAGER 1 Time MANAGER2 The differences between the two versions of Time MANAGER Time MANAGER 1 Time MANAGER2 Super Refresh Refresh Super Quick super rapid cycle recommended for cottons and synthetics with light dirt level and for half load Quick rapid cycle recommended for clothes used just ...

Page 20: ...6 LCD display The following information appears on the LCD display The three digits with seven segments represent ª Duration of the washing and drying programme ª End of the programme ª Delayed start ª Wrong choice of an option ª Alarm code ª Duration of drying time For explanations please refer to the LCD display description on pages 11 and 12 ª Thermometer See page 11 represented as a symbol in ...

Page 21: ...SOI DT 2010 03 dmm 21 78 599 72 84 41 4 2 2 Styling TC3 PROPORTIONAL max 8 buttons 15 or 21 position programme selector 18 LEDs LCD display Version WM Version WD Positioning of LEDs and buttons ...

Page 22: ...quantity absorbed by the clothes that is to say with a few clothes the water absorption will be lower and consequently also the duration of the washing cycle while with more clothes and thus a heavier load the water absorption will be higher and the washing cycle accordingly longer When a PROPORTIONAL programme is selected the LCD displays the three digits which indicate the maximum time for the c...

Page 23: ...Hz configurable Washing type Traditional with Eco ball sphere Jet System Rinsing system Traditional with Eco ball sphere Jet System Motor Collector with tachometric generator Universal Two pole asynchronous with three phase tachometric generator with Inverter Spin speed 600 1 600 rpm Anti unbalancing system FUCS for universal motors AGS for asynchronous motors with Inverter Water fill 1 solenoid v...

Page 24: ...e tachometric generator with Inverter Spin speed 600 1 600 rpm Anti unbalancing system FUCS for universal motors AGS for asynchronous motors with Inverter Water fill 1 solenoid valve with 1 inlet 2 or 3 outlets Detergent dispenser 3 compartments pre wash stains wash conditioner 4 compartments pre wash wash conditioner bleach Control of water level in the tub Electronic analogue pressure switch Doo...

Page 25: ...DT 2010 03 dmm 25 78 599 72 84 41 5 2 CONTROL PANEL 5 2 1 Styling TC2 TIME MANAGER max 8 buttons 15 or 21 position programme selector 2 LEDs LCD display Version WM Version WD Positioning of LEDs and buttons ...

Page 26: ...kwise and anti clockwise In the first position the appliance is switched off and the current programme is cancelled For each programme the compatible options and other parameters are defined 5 2 1 3 Programme configuration The table below lists the parameters that can be used to define the washing programmes Types of fabric Cotton linen Synthetic fabrics Delicates Wool Hand wash Shoes Jeans Duvet ...

Page 27: ...utton The options available for this button are Pre wash it can also be configured as a programme Easy iron it can also be configured as a programme Intensive Button no 3 OPTIONS version WD Configurable button The options available for this button are Extra dry Wardrobe dry Iron dry Automatic drying Button no 4 OPTIONS Configurable button The options available for this button are Super rinse Quick...

Page 28: ... a graphic of the LCD display for both versions after the COTTON programme has been selected as an example Time MANAGER 1 Time MANAGER2 The differences between the two versions of Time MANAGER Time MANAGER 1 Time MANAGER2 Super Refresh Refresh Super Quick super rapid cycle recommended for cottons and synthetics with light dirt level and for half load Quick rapid cycle recommended for clothes used ...

Page 29: ...splay The following information appears on the LCD display The three digits with seven segments represent ª Duration of the washing and drying programme ª End of the programme ª Delayed start ª Wrong choice of an option ª Alarm code ª Duration of drying time For explanations please refer to the LCD display description See pages 11 and 12 ª Padlock See page 12 ª Washing phases Pre wash wash rinses ...

Page 30: ...1 position programme selector 2 LEDs LCD display Positioning of LEDs and buttons 5 2 2 1 Control panel configuration The description of the PROPORTIONAL operation is on page 22 For the description of the operation of the pushbuttons and the symbols displayed on the LCD please see pages 26 29 ...

Page 31: ...sing diagnostics Version TC4 Version TC3 Time Manager Proportional Version TC2 Time Manager Proportional 1 Switch off the appliance 2 Press the START PAUSE button and the nearest option button simultaneously as shown in the figure 3 Holding down both buttons switch the appliance on by turning the programme selector by one position clockwise 4 Hold the buttons down until the LEDs and symbols begin ...

Page 32: ...ins compartment Displays the water level in the tub 6 Door safety interlock Wash solenoid valve if the water level in the tub does not cover the heating element Heating element Circulation pump Door locked Water level above the heating element Maximum time 10 mins or up to 90 C Heating Circulation Wash water temperature 7 Door safety interlock Wash solenoid valve if the water level in the tub does...

Page 33: ... power supply voltage frequency which are also displayed during the programme selection phase The door can normally be opened except where specified when an alarm condition has occurred on the condition that The level of the water in the tub is below a certain level The water temperature is lower than 55 C The motor has stopped Certain alarm conditions require that a drain phase be performed befor...

Page 34: ...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 LEDs user interface not configured 8 2 2 Example of alarm display Let us take alarm E43 problem with the door safety TRIAC as an example the following will be displayed the sequence of four flashes of the START PAUSE button with the red l...

Page 35: ...y returns to its normal operation The alarm reading system is as described in para 8 2 While the alarm is being displayed the appliance continues to perform the cycle or if in the programme selection phase it maintains the previously selected options in memory 8 4 Deleting the last alarm It is good practice to cancel the alarms stored after reading the alarm codes to check whether the alarm re occ...

Page 36: ...earest option button simultaneously as shown in the figure 3 Holding down both buttons switch the appliance on by turning the programme selector by five positions clockwise 4 Hold down the buttons until the hours of operation appear on the display or LCD display at least 5 seconds 9 2 Display of total operating time This time is displayed with a sequence of two digits at a time the first two digit...

Page 37: ...50 650 850 1000 1200 1300 1400 1600 1800 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 Max 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 Max 1200 Soak 30 20 Rinses 3 Max 1600 1800 Conditioner 1 Max 1600 1800 Drain Spin Max...

Page 38: ... X X X 60 C 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 40 C 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 Synthetic fabrics 900 0 cold X X X X X X 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 30 C X X X X X X X X X X Delicates 700 0 cold X X X X X X X X X X X X X X X X X 40 C X X X X X 30 C X X X X X Wool Hand Wash 1000 0 cold X X X X X X X X X X X X 60 C X...

Page 39: ... X X X X X X 40 C X X X X X X X 30 C X X X X X X X Curtains 700 0 cold 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 X Automatic 1600 0 cold X X X X X X X X X X X X X X X X X X X Soak 0 0 30 C X X X X Rinses 1600 0 X X X X X X X X X X Delicate rinses 700 0 X X X X X X X X Conditioner 1...

Page 40: ...d X X X X X 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 50 C 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 30 C X X X X X X X X X X X X Synthetic fabrics 900 0 cold X 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 30 C X X X X X X X X X X Delicates 700 0 cold X X X X X X X X X X X X X X 40 C X X X X X 30 C X X X X X Wool Hand Wash 1000 0 cold X X X X X X...

Page 41: ...X X X X X X X X X X Express 1200 0 60 C X X X X X X X X X Sensitive plus 1800 0 60 C X X X X X X X X X X X X X X Rapid 900 0 30 C X X X X X X X X 90 C 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 50 C 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 30 C X X X X X X X X X X X X Cotton Proportional 1800 0 cold X 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 ...

Page 42: ...ad Rinse hold X 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 X Stains X 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 X Extra 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 X X X X X X X Economy X X X X X X X X X X X Intensive X X X X X X X X X X X X Normal X X X X X X X X X X X X Daily X X X X X X X X X X X X Li...

Page 43: ...tains Adds a 5 minute motor movement phase after heating to 40 C Ducts water to the pre wash stains compartment 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 the first rinse in COTTON cycles Economy Energy label Modifies the structure of the COTTON 40 60 SYN...

Page 44: ...ICATES cycles by half a load Sensitive Adds one rinse in the COTTON SYNTHETIC FABRICS cycles During the cotton cycles the movements pass from energetic to normal The intermediate spin cycles are reduced Delayed start time Adds a pause before the start of the programme The delay time is displayed on the corresponding LEDs starting from a 2 hour until a 20 hour delay 30 60 90 2h 3h 20h 0h To start t...

Page 45: ...Current phase and sub phase Ö Appliance status used to perform special cycles such as Electrical test used on the assembly line Continuous cycles used in the factory workshop Ö Appliance configuration the data contained in this portion of the memory defines the characteristics of the model and is interpreted by the function software The variables are as follows Type of appliance front loader top l...

Page 46: ...f range operation of the motor Structure of the washing group Control parameters for the FUCS anti unbalancing system Water fill algorithm Alarm control system Sensor parameters flowmeter etc 11 1 3 RAM This memory contains the variables that is to say all the dynamic information used during running of the programme Ö Motor speed Ö Temperature of the water Ö Alarms Ö Cycle selected Ö Machine statu...

Page 47: ...the washing programme is started by pressing the start pause button the bi metal PTC contacts 3 5 is powered by the triac Door_TY 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 the door from being opened while the appliance is in operation ª At the end of the washing programme ...

Page 48: ...y closes the main switch contacts 4 5 thus supplying power to all the appliance components When the programme ends the PCB 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 11 2 2 2 Door open condi...

Page 49: ...h solenoid valve 6 Wash solenoid valve 7 Bleach solenoid valve 20 PCB 11 3 1 Flowmeter Some models of solenoid valves have a built in flow sensor which measures the quantity of water in litres that is loaded into the appliance In the event of a sensor failure the water level is controlled by the analogue pressure switch Solenoid valve exploded view PCB Turbine 1 PCB 4 Diffuser 2 Turbine 5 Double f...

Page 50: ...f the solenoid valve The solenoid valve may jam open without being actuated which will cause flooding if the pressure switch controlling the water level does not trip If this occurs the electronic control system which continuously monitors the flow sensor will lock the door start the drain pump and display an ALARM simultaneously Low water pressure If the flow sensor does not generate a signal dur...

Page 51: ... Electrical symbol The pressure switch is connected via a tube to the pressure chamber When water is introduced into the tub this creates a pressure inside the hydraulic circuit that causes the membrane to change position This in turn modifies the position of the core inside the coil thus changing the inductance and the frequency of the oscillating circuit The PCB recognises how much water has bee...

Page 52: ...e electronic pressure switch closes on empty after which the pump is actuated for a brief period or passes to the subsequent phase for a pre determined period and possibly an alarm is displayed 11 6 Circulation pump where featured On jetsystem models the main PCB powers the circulation pump directly through a triac 17 Drain pump 18 Overload cut out 20 PCB ...

Page 53: ...hich they are calibrated WARNING When replacing the heating element do so with one with the same characteristics so as not to compromise the safety of the appliance Do not remove switch the NTC sensors between heating elements 11 8 Temperature sensor The temperature is controlled by the PCB by means of an NTC temperature sensor incorporated in the heating element 1 NTC heating element 2 Metal caps...

Page 54: ... 24 Motor X Y X Motor windings 11 10 1 Power supply to motor Three phase power is fed by the inverter 4 which sends through the connectors 5 6 7 the three phases to connectors 1 2 3 on the motor nodes U W V where the windings Y X Z are connected The phase shift between the phases is 120 and peak amplitude is 310V It is possible to get an idea of the efficiency of the motor by measuring the resista...

Page 55: ...he 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 switches 5 times to full five spin interruptions If this occurs the spin phase is skipped and a one minute drain cycle is performed with the motor stationary and in the case of a w...

Page 56: ...repeated until the wash load is completely balanced ª Correct balancing of the wash load is achieved at a speed of 115 rpm after which the spin cycle begins The Unbalancing Control function takes place in different phases each phase is characterised by ª an unbalancing index 0 1 2 3 ª an unbalancing threshold value e g 850 350 650 1100 rpm ª a time out max time Ending of the FUCS balancing phase T...

Page 57: ...84 41 Balancing in the longest available time interval Phase Unbalancing index Time out sec 1 0 60 2 1 120 3 2 60 4 3 90 5 1 120 6 2 90 7 3 90 Unbalancing after all phases In this case the spin or pulse is not performed 1 2 3 4 5 6 7 ...

Page 58: ...e types of drying can be selected extra dry wardrobe dry iron dry Time controlled cycle The drying time is selected by the user max 130 minutes for cotton and synthetic fabrics Cooling a cooling cycle is performed at the end of every drying cycle Anti crease after the cooling phase a 10 minute anti crease phase is performed The drying heating elements are powered directly by the main PCB via two r...

Page 59: ...it board 1 Drying temperature control NTC sensor 2 Auto reset safety thermostat 3 Manual reset safety thermostat 150 C 4 Drying heating element NTC sensor heating element at 25 C 5000Ω Manual reset safety thermostat Normally closed opens at 150 5 C Auto reset safety thermostat Normally closed Opens at 110 3 C Closes at 94 5 Power 920 920 W Power supply voltage 230V 240 Heating unit Resistance 56 5...

Page 60: ...sure switch faulty Main PCB faulty Cycle paused START RESET E23 Faulty triac for drain pump Wiring faulty Drain pump faulty Main PCB faulty Safety drain cycle Cycle stops with door open RESET E24 Malfunction in sensing circuit on triac for drain pump wrong input voltage to micro processor Main circuit board faulty Safety drain cycle Cycle stops with door unlocked RESET E31 Malfunction in electroni...

Page 61: ...rter is drawing too much current 15A Wiring faulty on inverter for motor Inverter PCB faulty Motor faulty Cycle stops with door locked after 5 attempts RESET E58 Inverter is drawing too much current 4 5A Motor malfunction overload Wiring faulty on inverter faulty Motor faulty Inverter PCB faulty Cycle stops with door locked after 5 attempts RESET E59 No signal from tachometric generator for 3 seco...

Page 62: ...ioned or faulty Main WD PCB faulty The heating phase is skipped START RESET E74 NTC sensor for wash cycle improperly positioned Wiring faulty NTC sensor for wash cycle improperly positioned NTC Sensor faulty Main PCB faulty Heating phase is skipped START RESET E82 Error in selector reset position Main PCB faulty Incorrect configuration data RESET E83 Error in reading selector Main PCB faulty Incor...

Page 63: ...open RESET Ed6 No communication between main PCB and display board INPUT Wiring faulty between main PCB and programme display board Display board faulty Main PCB faulty ON OFF Ed7 No communication between main PCB and remote display board Wiring faulty between main PCB and remote control board Remote control board faulty Main PCB faulty EF1 Drain filter clogged drain phase too long Drain hose bloc...

Page 64: ...congruence between safety relay in the main PCB and safety sensing circuit Wiring faulty Main PCB faulty Safety drain cycle Cycle stops with door open RESET EHF Safety sensing circuit faulty wrong input voltage to micro processor Main circuit board faulty Safety drain cycle Cycle stops with door open RESET ...

Page 65: ...SOI DT 2010 03 dmm 65 78 599 72 84 41 13 DIAGRAMS 13 1 WM diagram with UNIVERSAL MOTOR EWM 21xx ...

Page 66: ...tor motor 13 Overheating cut out motor 14 Rotor motor 15 Drain pump 16 Thermal cut out drain pump 17 Circulation pump 18 Thermal cut out circulation pump 19 Door safety interlock with PTC 20 PCB 21 Motor with half range 22 Motor without range DOOR_TY Door interlock Triac DRAIN_TY Drain pump Triac REC TY Circulation pump Triac K1 Heating element relay K2 Motor relay clockwise rotation K3 Motor rela...

Page 67: ...SOI DT 2010 03 dmm 67 78 599 72 84 41 13 2 WM diagram with THREE PHASE ASYNCHRONOUS MOTOR EWM 25xx ...

Page 68: ...ing element with thermal fuses 9 Door safety interlock instantaneous 10 Anti disturbance filter 15 Drain pump 16 Thermal cut out drain pump 17 Circulation pump 18 Thermal cut out circulation pump 19 Door safety interlock with PTC 20 PCB 23 Inverter 24 Three phase motor DOOR_TY Door interlock Triac DRAIN_TY Drain pump Triac REC TY Circulation pump Triac K1 Heating element relay ON OFF Main switch p...

Page 69: ...SOI DT 2010 03 dmm 69 78 599 72 84 41 13 3 WD diagram with UNIVERSAL MOTOR EWM 21xx ...

Page 70: ...19 Stator motor 20 Overheating cut out motor 21 Rotor motor 22 Drain pump 23 Thermal cut out drain pump 24 Circulation pump 25 Thermal cut out circulation pump 26 Door safety interlock with PTC 27 Main circuit board 28 Motor with half range 29 Motor without half range DOOR_TY Door interlock Triac DRAIN_TY Drain pump Triac REC TY Circulation pump Triac K1 Relay K2 Motor relay clockwise rotation K3 ...

Page 71: ...SOI DT 2010 03 dmm 71 78 599 72 84 41 13 4 WD diagram with THREE PHASE ASYNCHRONOUS MOTOR EWM 25xx ...

Page 72: ...sturbance filter 18 Tachometric generator motor 22 Drain pump 23 Thermal cut out drain pump 24 Circulation pump 25 Thermal cut out circulation pump 26 Door safety interlock with PTC 27 Main circuit board 30 Inverter 31 Single phase motor DOOR_TY Door interlock Triac DRAIN_TY Drain pump Triac REC TY Circulation pump Triac K1 Relay K2 Motor relay clockwise rotation K3 Motor relay anti clockwise rota...

Page 73: ...rds to remove it 14 2 Control panel b Press the drawer lock c Extract it d Remove the screw which secures the control panel to the dispenser e Cut the clamp which secures the wiring to the PCB casing use a new clamp when re assembling it f Release the wiring from the clamp g Release the clamp from the crosspiece h loosen the screws which secure the crosspiece to the cabinet b c d e f g h h e ...

Page 74: ...e control panel to the crosspiece b Release the hook c Lift the control panel up and extract it d Rotate the control panel e Detach the connector indicated by the arrow f Arrange the wiring as shown in the figure g Extract the control panel h Rotate the control panel a a b d ...

Page 75: ...ntrol panel c Before mounting the new PCB extract the knob by pressing the hooks indicated by the arrows as shown in the figure While re assembling repeat the same operations in the reverse order and take care to position the knob correctly While remounting the worktop please take care not to position it as shown in fig A but rather as shown in fig B A B ...

Page 76: ...anel unscrew the four screws situated above the top and the two rear screws 15 2 Control panel b Extract the detergent dispenser c Loosen the two screws which secure the control panel to the dispenser d Loosen the three screws which secure the crosspiece to the cabinet and to the conveyor e Release the wiring supports from the crosspiece ...

Page 77: ...rol panel g Loosen the two screws which secure the control panel to the crosspiece h Release the hooks which secure the control panel to the cabinet one on the right and the other on the left i Release the hook which secures the crosspiece to the conveyor j Extract the crosspiece from the control panel lift up and rotate the control panel k Cut the two clamps which secure the wiring of the microdo...

Page 78: ...ector from the board m To extract the board remove the screws release the hooks which secure it to the control panel Warning the screws which secure the board in place could be cross head or Torx screws T20 While reassembling repeat the same operations in the reverse order replacing the old clamps with new ones ...

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