SERVICE MANUAL DISHWASHERS - M
Contents
1. 1 Cold Rinse 2nd Cold Rinse Rinse Hot rinse Programme Type of Wash lt o o 2 E heating min heating min heating min Type of Wash heating min Type of Wash Drying min Type of Wash dum co lt o Wash time after Wash time after Wash time minutes Wash time minutes Wash time minutes Wash time minutes Temperature in C Wash time after Cycle time minutes o0 E E lt o Temperature in C oO oO E E lt b pum t i i i i Lr Lr 3 3 1 P C pr pair pwr intensive ec o an sec 5 cm Ct Norma Pw pers a feo s m T bs Tre Pwr i oec Pw Normal ctrl e ers a jeep s arf e esc N5 Normal 3Rinses e on sore e lec s on v 9 per REL N3 Delicate 2 6 Pw PTT ts Trt we i 15 5 E PA a iem I oio t E4 label Short se Mero S Dri o mm fate ew seno om 1 Auto 1 Automatic 50 65 rete Tae Pe Poe Ta Q6 s fem 95 Short30min epee EE Q6 Plateheating 0 Glassware 0 Set ett l EI ESI ECREXESEA2. Gch cents 26 8 1 2 Determipauon or a a buie e cer Med PERI obere 26 AUM PTO O es dns uu das tatu eu in 26 9 PAU EME NS EE 27 27 10 Diagnosics mode iust assists 29 10 4 Aceessing GIAGMOSTICS MOOS romeo denen 29 10 2 Reading the alarms and activating the individual 29 10 3 Cancelling alarm codes from memory Testing the 30 10 4 F UNC HOM al TSSTING 30 IL em 30 10 4 2 M LM d LAM 30 10 5 Options available to Service Engineers 31 10 5 1 Selecting the extra cold rinse nnns 31 1029 27 Disabiing bulse WaASMING
3. pcc HnM 8 4 4 2 Eee ISO TTIBSO 8 4 4 3 8 4 4 4 Se nce ee 8 Ao SLAY OSU acca conv cect stesso un em eu qur 9 46 Modifying a programme isese anaa e aaa a a AEn a E du cute coe Es Ada 10 4 6 1 Cancelling a programme TeSel esq anin ee en ioco TA 10 4 6 2 pz programe saei m 10 4 6 3 Interruption Of a programme 10 POW anda ceat ulcer Lh EDU 10 11 4 8 1 ACUVALING GISACTIVALING the o RUD Acto dab s 11 49 Seddence Oropa sistemi Sect aides um un cereus o 12 STRUCTURAL GHARAC TERISTICS 13 pU ELTE C C 13 5 2 Hydraulic and functional characteristics 13 Sara sus aches too Ec pL 14 ELECTRICAL COMPONENTS AND THEIR FUNCTIONS 2 15 6 1 EDV
4. Electrolux SERVICE MANUAL Distriparts DISHWASHERS Dishwasher with EDW 1503 electronic ELECTROLUX HOME PRODUCTS control system ITALY S p A Functionalities Spares Operations Italy Publication no Corso Lino Zanussi 30 DIVA 60 cm F I 33080 PORCIA PN ITALY Totally integrated with Prod N 911 936 Fax 39 0434 394096 EN Production ZM Solaro IT Edition 2003 01 20 SOI DT 2003 01 eb 1 599 35 64 85 SOI DT 2003 01 eb 2 599 35 64 85 5 BONA 5 6 Purpose of eee ele E ed 5 FS E 5 GENERAL CHARAG TE IRIS TICS areir a Sd an raa opu es Na afuera ipu 5 CONTROLFANE De ee ee 6 Soie MS Ail NERA 6 4 1 1 IN OFF BUTOR S 6 4 2 Programme Option buttons 51 56 6 4 2 1 Indicator LEDS EDTO LE D 12 ice rr per ek oneri ene ora ae Uus e te dide ag 7 4 2 2 osx te tM d i MA IM 7 4 59 fis ocellis ato deas esto 7 6151175 Tr HH I 8 4 4 1 Kc
5. Glassware 44 4 Sanitize This is a special option used to sanitize the dishes cutlery However it is NOT compatible with the Glassware programme During the final rinse the temperature is maintained at 68 C for 10 minutes 5 If used together with the SOAK option the system performs a special sanitizing programme which lasts approximately 46 minutes 1 hot rinse followed by 10 minutes at a constant temperature of 68 C SOI DT 2003 01 eb 8 599 35 64 85 4 5 Delayed start Proceed as follows to select the delayed start time Open the door and switch the appliance on by means of the SO button Press the button repeatedly to select the delayed start time which appears flashing on the display The time increases every hour to 19h 7 2 3 19 0 Select the programme and the possible options For some seconds the display shows the time to end of the cycle then the delay time Close the door to activate the delay time The display lights steady and the countdown starts the time decreases every hour 19 18 517 1 50 During the countdown till the programme starts it is possible to modify the delay time or cancel it After the delay time the programme starts automatically The display shows the time to end of the cycle FON The delayed start countdown can also be selected as follows Press button SO to switch on the appliance Select the programme
6. 64 85 10 3 Cancelling alarm codes from memory Testing the LEDs It is good practise to cancel the alarm codes after reading the alarm code or after effecting repairs to check whether it is repeated during the diagnostics test EEN To ao ane EPI T RN 1 Access diagnostics mode see 10 1 Press button 52 to cancel the alarms All the LEDs and the digits 788 flash for about 30 seconds The function terminates automatically and the machine enters selection mode LEDs LD1 LD6 on 10 4 Functional testing cycle This is an abbreviated washing programme which allows the Service Engineer to test all the functions that comprise a traditional washing cycle in effect the system simulates a normal cycle 10 4 1 Selecting the cycle N gt Access diagnostics mode see 10 1 Press button 53 to start the cycle The LEDs LD1 LD2 switch off while LD3 continues to flash while the LED of the current phase is steady The display shows the time to end The programme the programme behaves as in a normal cycle the PAUSE and CANCEL options are accessible 10 4 2 Cycle phases A Calibration of the turbidity sensor without water Detergent rinse aid ctrl dispenser Type of wash Water fill to level static dynamic Heating to 50 C Heating to 68 C Washing 14 minutes Washing 5 minutes 44 mi o The overall duration of the test cyc
7. F4 on the circuit board The absence of rinse aid causes the contact to close which lights the corresponding LED on the display board NEUTRAL Common Components SOI DT 2003 01 eb 21 D B5 599 35 64 85 6 10 Disactivating the rinse aid function Introduction of rinse aid may be disactivated by the user by pressing a combination of buttons In this case the Rinse aid LED if featured will also be disactivated m LD2 3 1 WVU JANI ANT 1 Cancel any cycles that may have been selected 2 Press 50 to switch the appliance on 3 Press buttons 52 53 simultaneously and hold down until LEDs LD1 LD2 and LD3 begin to flash 4 Press button 52 LEDs LD1 and LD3 switch off while LD2 continues to flash The condition of the function is indicated by the display rinse aid function is operative Od rinse aid function is inoperative 5 Press button 52 again to disactivate activate the rinse aid function 6 To store this setting in memory press button 0 and switch the appliance off alternatively wait for 60 seconds appliance in selection mode 6 11 Drain The drain pump PS is powered by triac TY3 o connector C1 and via the contacts of the MAIN BOARD ON OFF switch PU and the door switch IP At the end of the drain phase a control procedure is performed to check that the contact of the level pressure switch is open on EMPTY If this is the case the app
8. Press S0 to switch the appliance off SOI DT 2003 01 eb 12 599 35 64 85 5 STRUCTURAL CHARACTERISTICS 5 1 Structure The appliance as a whole may be considered as consisting of four main assemblies BASE DOOR TUB HYDRAULIC SECTION The four assemblies are enclosed in a structure consisting of A lower front panel secured by two screws Two lateral panels secured by six screws 5 2 Hydraulic and functional characteristics Turbo fan Drying duct Fill tank condenser Counterweight Base Heater Ii Softener Sump Drain pump SOI DT 2003 01 eb 13 Wash pump 599 35 64 85 5 3 Hydraulic circuit ae LUTT 1 3 KEY 1 Anti overflow pressure switch 2 Sump assembly 3 Wash pump 4 Tube enclosed heating element 6 Steam condenser 6 Non return valve 7 Regeneration chamber 7 Drain hose 1 1 15 Drain pump 1 1 9 Anti flooding device 10 Level pressure switch Se SOI DT 2003 01 eb 14 599 35 64 85 6 ELECTRICAL COMPONENTS AND THEIR FUNCTIONS 6 1 EDW1503 Electronic control system The EDW1503 control system consists of a main circuit board and a control display board Both boards are housed in a plastic container 6 1 1 Functions of the circuit board DISPLAY BOARD ELECTRICAL LOADS MAIN CIRCUIT BOARD The circuit board receives signals relative to the cycle settings via the control display board The buttons and LE
9. Technical characteristics e Guide to diagnostics For more detailed information regarding the hydraulic circuits and the structural characteristics of the appliances refer to the Service Manual for presentation of the DIVA structure publication number 599 35 55 25 2 PRECAUTIONS Electrical appliances must be serviced only by qualified Service Engineers Always remove the plug from the power socket before touching internal components 3 GENERAL CHARACTERISTICS Power supply gt 230V 50 Hz limits 187 254 V Total power absorption gt 2300 W Mains water supply Pressure Min Max 5 80 N cm Capacity 12 place settings Dimensions width gt 59 6cm height gt 81 8 87 8 depth gt 55 5 Controls gt Horizontal Vertical ON OFF gt Two pole switch separate from the electronic board Selection of programmes options Button actioned min max 6 Display Display 2 5 digits and LEDs Washing system gt Combined Pulse Control of water level Pressure switch Software Water heating gt Tube enclosed heating element 2100 W Temperature control gt NTC temperature sensor Type of drying gt Active Turbo Safety devices Alarms Total protection hydraulic Software SOI DT 2003 01 eb 5 599 35 64 85 4 CONTROL PANEL 4 1 Control panel The configuration of the control panel depends on the following Number of programme selection buttons fro
10. by the contacts of the ON OFF switch PU and the door switch IP MAIN BOARD Some models feature a salt sensor whose reed contact SS is connected to connectors F1 F2 on the circuit board The absence of salt causes the contact to close which lights the corresponding LED on the display board DI NEUTRAL e e e 8 amp 6 13 Resin washing Washing of the resins contained in the softening system is performed at the beginning of each washing cycle In practise the solution of salty water regeneration water remains deposited in the resin container from the end of the last completed cycle until the subsequent cycle If the regeneration level is set to 10 washing of the resins is performed once at the beginning of the washing cycle and then again immediately after the regeneration process performed at the end of the washing phase The regeneration sequence is as follows Drain 30 seconds Water fill to correct level Drain 10 seconds Water fill 15 seconds Complete drain ococo SOI DT 2003 01 eb 23 599 35 64 85 6 14 Regeneration levels The counter for execution of the Ad Hoc regeneration process is governed by the electronic control system on the basis of the duration of the fill phases i e the quantity of water introduced and NOT on the number of cycles Regeneration can be set to one of 10 levels If regeneration is set to level 1 the procedure is not p
11. counter clockwise direction Seen from the impeller side and is fitted with a tachymetric generator In order to optimize the washing programmes two washing systems can be applied ctrl Washing at constant speed 2800 rpm maximum speed of the motor Pulse washing at 1600 2800 rpm This washing system is controlled by the electronic control system which actions the washing pump alternately at two speeds minimum and maximum speed for short periods MOTOR SPEED PERIOD OF OPERATION The ctrl and pw speeds are configurable For further details refer to the cycles tables relative to the specific model 6 8 1 Control of the washing pump The washing pump PL is powered by triac MAIN BOARD TY4 on the circuit board connector C3 by the door switch IP and by the ON OFF switch PU The main circuit board controls the speed of rotation according to the signal received from the tachymetric generator T connected to connectors E1 E2 1 T gt This signal is used for Control of the washing system ctrl or pw Control of the pump motor safety devices and the relative alarms Control of the dynamic fill Cammon Components SOI DT 2003 01 eb 20 599 35 64 85 6 9 Heating The heating element is enclosed in a protective tube and is used to heat the washing water but does not switch on during the drying phase The heating element is fitted to the outlet of the washin
12. ey oo COP WOUINSIMIOI GI VE 3 19 zh GI VE 4n 3 1 E VIA x i 5 j ze zz 599 35 64 85 SOI DT 2003 01 eb 11 2 Basic circuit diagram MAIN BOARD Common Components CO Capacitor NE Black DD Detergent Rinse aid RO Pink dispenser VI Lilac EC Fill solenoid AAIDA Anti flooding device Regeneration solenoid SEE P eel Beamer Beamer GA Suppressor MA Brown IP Door switch SOI DT 2003 01 eb MR General terminal block MV Fan motor PL Washing pump PS Drain pump PU Pushbutton array PR RL Level pressure switch 34 XS EASE TY2 TYI TY4 Bo ae G BEAMER Turbidity ST PA Anti overflow pressure TAC T Tachymetric generator switch TS Safety thermostat RR Heating element Main Board Main board SB Rinse aid sensor User Interface Display board SS Salt sensor Turbidity Turbidity sensor ST Temperature sensor 999 35 64 85 11 3 Table of programmes The table below lists the phases of the programmes for this type of appliance As these can be configured differently refer to the relative documentation for the specific cycles available for each model Programmes 2
13. function to mix softened water with unsoftened water This function optimizes the consumption of salt thus preventing the possibility of corrosion of glass recipients due to excessively soft water When the BLENDING function is activated the percentage of unsoftened water introduced into the dishwasher is 15 The BLENDING function is activated using the selector knob located inside the tub on the left side in the vicinity of the steam venting grille Position of selector gt pos 1 blending ACTIVATED gt pos 2 blending DISACTIVATED SOI DT 2003 01 eb 24 599 35 64 85 6 14 3 Table of regeneration values Water introduced Aperture of Position of Hard fth between regeneration selector in Brene o Brie Level Display water regeneration cycles solenoid the tub litres 1 n F TH D dh 0 E 1 E 2 2L 15 1 20 1 9 gt 14 5 gt 8 3 3L 4 1 20 1 15 gt 20 9511 I N I N 5 5L 2 81 40 18 gt 22 6 6L 37 41 gt 50 23 gt 28 7 51560 29 gt 33 240 2 71 gt 80 40 gt 45 224 2 81 gt 90 46 50 5 factory set level Position of selector in tub 2 NIN rr e NIN I OJO NO e r 7 Drying ACTIV DRY TURBO DRY In these dishwashers the dishes are dried by means of a steam condensation process The drying system is based on the c
14. in order to optimize performance when 3 in 1 detergent tablets are used 5 variation of the duration of the programme and the temperatures required to dissolve the detergent tablets reduction of water exchange partial drain phases exclusion of introduction of rinse aid exclusion of regeneration resin washing 4 4 2 Extra rinse rinse This option may be selected temporarily by pressing the button if featured or in Service mode If this option is set by the service engineer it remains in memory until disactivated see relative section This option adds one cold rinse with pulse washing with a duration of about 5 minutes 44 3 1 2 load The 1 2 load option optimizes the washing cycle when only a small load is placed in the appliance e 1 2 load button When this button is pressed certain parameters of the selected washing cycle are modified Exclusion of Pre wash if featured Reduction of the washing temperature Reduction of the duration of the programme up to 36 minutes e Automatic 1 2 load When this button is not featured on the control panel certain programmes may feature automatic detection of the half load This system measures variations in the temperature during the initial heating phase The temperature and the duration of the wash are both reduced This option ts not available in the following cycles Intensive Short 30 minutes Soak Heating plates and
15. to FULL This system ensures that if the pressure switch re opens on EMPTY further water is introduced until it returns to FULL The water fill phase consists of the following sub phases 6 5 1 Static fill With the motor switched off the fill solenoid valve is energized and water is introduced into the appliance until the pressure switch signal switches to FULL 6 5 2 Dynamic fill The dynamic fill is obtained by switching on the washing pump whose rotation causes the pressure switch to switch to EMPTY Subsequently the fill solenoid valve is energized and water is introduced until the switch returns to FULL The speed of rotation of the motor determines the quantity of water introduced since the electronic control system switches on the washing pump at a variable speed which depends on the washing system that will be performed in the phases subsequent to the water fill gt In the case of ctrl washing at constant speed the speed of rotation increases gradually to 2800 rpm gt Inthe case of pw pulse washing the speed of rotation increases gradually to 1900 rpm N B Refer to the Table of Programmes for the definition of the washing system 6 5 3 Level stability control The hydraulic circuit operates with maximum efficiency when the pressure switch signal remains stable on FULL In practise the quantity of water circulating in the sump allows the motor to run without speed fluctuations caused by cavitation When the press
16. 66 N B The overall times for the programmes duration are approximate and do not take into consideration the extra rinse which may be selected as an option The various phases do not include the times for regeneration washing of the resins which being performed Ad Hoc are not carried out at every cycle see sections 6 12 and 6 13 ctrl Continuous washing at 2800 rpm PW gt Pulse washing at 1600 gt 2800 rpm a oO s BOR SEDED Type of Wash ms ms N NINININ NIN zx I P 24 SOI DT 2003 01 eb 35 599 35 64 85 11 4 Checking the efficiency of the components In order to facilitate the control procedure for the components to be tested a TEST PROCEDURE has been created which indicates the point to which the probes of the tester should be applied and the correct theoretical value for each component tested Remove the door and detach all the connectors from the main board Connect the probes of the tester to the appropriate points on the connector Compare the ohmic reading with the theoretical value TOPOL TIMI SMO WLM 9024909007 UUU replaced in the incorrect position back to front the appliance will not function The board will not accept any commands since the power supply will be disconnected Care should be taken relative to the position of connector A1 A2 if this connector is 11 5 Measurement po
17. Ds are also mounted on this board The board also powers all the electrical components solenoid valves washing pump detergent rinse aid dispenser drain pump heating element fan motor The board controls the temperature of the washing water via an NTC sensor as well as the speed of rotation of the washing pump according to the signal received from the tachymetric generator The circuit board monitors the status of the pressure switch and the rinse aid salt sensors 9 2 g 6 1 2 Memory the control system Power Fail and machine status Asynchronous Sunc EEPROM Configuration of external serial external the appliance port to the uP Description of the cycle The main circuit board features an EEPROM memory external to the microprocessor which stores in memory data relative to the configuration description of the cycle cycle status in case of a power failure and any alarm conditions The configuration data entered in the factory using a computer with a DAAS interface determine the functionalities of the appliance number and type of programmes options LEDs etc SOI DT 2003 01 eb 15 599 35 64 85 6 2 Specifications for actuators and sensors 6 2 1 Components TYPE OF ELECTRONIC TYPE OF COMPONENT POWER AVAILABLE CONTROL Wash pump Max 250W Triac Heating element Max 2100W Relay 6 2 2 Sensors 3m NTC Temperature sensor NTC COMPARATIVE VALUES C gt M 9 SOI D
18. T 2003 01 eb 16 599 35 64 85 6 3 Power supply and programme selection The main board is powered by the closure of USER INTERFACE contacts 1 5 and 2 4 of the ON OFF button PU The connectors used in this case are A2 neutral and 1 line The control display board user interface is powered at 5V by the main board making programme selection possible When the door is closed the main board detects the closure of the contacts of the switch IP across connectors B2 D1 and starts the washing programme The same switch powers the electrical components NEUTRAL Common Components When the door is opened the power loads are disconnected from the power supply and the cycle is paused 6 3 1 Beam on floor function certain models only USER INTERFACE Certain models feature a special device beamer installed between the door and the inner door and connected to terminals E6 E4 and E3 on the circuit board This device projects a beam of red light onto the floor and operates in the same way as the end of cycle LED MAIN BOARD E beam remains lit when the end of the cycle has been reached The beam lights intermittently to signal an alarm condition A2 Be Ep E4 Es NEUTRAL Common Components SOI DT 2003 01 eb 17 599 35 64 85 6 4 Fill circuit 6 4 1 Level and anti overflow pressure switch e The level of water introduced into the appliance is determined by the leve
19. V 1503 Electronic 15 6 1 1 Furictons of Ihe circuit DOSE en Da 15 6 1 2 Memo AN ING CONMOUSVSIOM E 15 6 2 Specifications for actuators and 16 6 2 1 PERO LEES HEN 16 6 2 2 SEE a e cd ee I EL LL M E uem Rd CI uM 16 6 3 Power supply and programme 17 6 3 1 Beam on floor function certain models 17 or taat ec E E m TET 18 6 4 1 Level and anti overflow pressure 8 18 6 4 2 PMS iS Te ste as eundcm E cts sai Au ter 18 6 4 3 M P 18 6 4 4 Intervention of the anti overflow 18 05 Control Of Water Till MAS sc hare tates 19 6 5 1 PEE 19 6 5 2 PER 19 6 5 3 Leyel Stability Control 19 tec 19 6 6 1 State MIHIM 19 6 6 2 EY Rei TIM TING hepa ee ese eee eee 19 6 6 3 Power supply interruption during water 19 Gf EeVelstabillby auririd
20. Washing Sunc ve eae a 20 Boor cc 20 6 8 1 Control of the washing nn sns nnne asi sna ss sna inse saa ss sas nnne ans 20 0 92 a 21 6 9 1 Integrated 21 6 10 Disactivating the rinse aid 22 6 11 p ROTEN teen ttc cane are AH RH M A ore MEME 22 6 12 Regeneration pe cS ave epe 23 6 13 E 23 6 14 Regeneron EVES 24 6 14 1 Setting the regeneration level iride et ofertar 24 614 7 3Bl nding MANIC 24 6 14 3 of regeneration 25 SOI DT 2003 01 eb 3 599 35 64 85 7 1 4 Aen iecur 25 8 Ptole dns essc is am Mesum ME A I Me nM 26 NGI LTS INS eh te cise estne a relents wae str ru Ep cU M eel 26 8 1 1 Calculating tne degree of
21. and the possible options Press sequentially the button to select the delay time Close the door to activate the delay time with the same procedure previously described pp e SOI DT 2003 01 eb 9 599 35 64 85 4 6 Modifying programme 4 6 1 Cancelling a programme reset To cancel a programme that has already started proceed as follows 1 Open the door carefully Press buttons S2 S3 together for approximately 2 seconds the LED corresponding to the cycle being executed begins to flash or gt if featured the button Cancel for about 3 seconds the LED of the button for selecting the programme lights 3 After about two seconds the display switches off the programme is now cancelled and the appliance returns to the selection mode programme LEDs are on 4 6 2 Modifying a programme 1 Until a cycle has actually started digit with flashing light the settings selected can be modified at any time by pressing the appropriate buttons 2 To modify a programme that has already started first cancel it see corresponding parag and then perform the new selections 3 Open the door carefully 4 Press the button of the new programme for about 6 seconds the LED of the current programme begins to flash 5 After about 6 seconds the LED of the old programme switches off and the LED of the new one lights the possible options are deleted and have to be selected again 4 6 3 Interruption of a programme pause Proc
22. casi 32 10 6 EXITING eragnostoS mania muti acc tv d vaL ES 32 11 ELECTRICAL FUNCTIONS ie eae eed 33 11 1 Electricalcircuit ene 33 1 2 tte 34 11 2 1 a Utd D ons E ea 34 11 3 Table OE 35 11 4 Checking the efficiency of the components 36 11 5 Measurement points on the board wiring emnes 36 12 QUICK GUIDE TO THE SPECIAL F NGCT IONS n PapsrutibdssssuiiUuCese 37 SOI DT 2003 01 eb 4 599 35 64 85 1 Purpose of this manual The purpose of this Service Manual is to provide Service Engineers who already have the basic knowledge necessary to repair household dishwashers with technical information regarding dishwashers featuring the EDW 1503 electronic control system These appliances are manufactured at Solaro Italy The EDW1503 control system consists of a main circuit board and a control display board Both boards are housed in a single plastic container This system is used in free standing and partially integrated versions with DIVA 60 cm structures This Manual describes e General characteristics e Control panel and programmes e
23. d 8 2 Automatic Programme The table below shows the variations in the programme phases according to the type of soiling and the size of the load Programme gc 68C C Cold pe C Cold 68 C 24 min SOI DT 2003 01 eb 26 599 35 64 85 9 Alarms In the event that an abnormal situation should occur which might affect the correct operation of the appliance the circuit board causes safety system to intervene In most cases this interrupts the washing cycle The last three alarm conditions are stored in memory Using a special procedure available only to Service Engineers it is possible to read all the alarms stored in memory However only four current alarm conditions are displayed to the user The alarms are displayed by the display and with a series of beeps from the buzzer only certain models Table of alarms Toe Displayed Ha Display to the Description of the alarm condition Machine status Possible causes user Water fill time out The pressure switch does not close on FULL after 90 sec static fill or never closes on FULL during the initial 60 sec of the dynamic fill at 2800 rpm Tap closed water mains pressure too low solenoid wiring faulty hydraulic circuit of pressure switch obstructed level pressure switch wiring faulty circuit board faulty The drain pump switches on then the cycle stops Drain circuit obstructed blocked drain pump interrupted or jammed forei
24. e time until LEDs LD1 LD2 and LD3 begin to flash Press button 53 LEDs LD1 and LD2 switch off while LD3 continues to flash The condition of the buzzer is indicated by the display buzzer on 0b buzzer off Press button 53 again to disactivate activate the buzzer To store this operation in memory press button SO and switch the appliance off or wait 60 seconds the appliance is in selection mode programme LEDs are on SOI DT 2003 01 eb 11 599 35 64 85 4 9 Sequence of operations Open the door to access the controls Press 50 to switch the appliance on Select the desired programme The display shows the time to end or the programme no flashing SELECTING THE CYCLE Select the possible delayed start or the desired option if featured Close the door to start the cycle The digits light steady The time to end decreases every minute and is updated after every cycle phase not visible from the user To interrupt a current programme Switch the appliance off with SO or open the door To start it again press SO and close the door To cancel a current programme Press 52 53 simultaneously for about 2 seconds l O gt O L LL gt lt At the end of the programme The buzzer sounds at intervals The END OF CYCLE LED lights The display shows 0
25. eed as follows to interrupt a programme that has already started 1 Open the door carefully and press 50 to switch the appliance off 2 Tore start the cycle press 50 again and close the door The programme starts after a brief delay from the point at which it was interrupted Important If the appliance is switched off or if the door is opened for more than 30 seconds during the drying phase the cycle is considered to have been terminated after the regeneration phase when the appliance is switched on again it returns to programme selection mode 47 Power failure The Power Failure function maintains the information relative to the cycle status even in the even of a power outage when the power supply is restored the cycle resumes from the point at which it was interrupted If the power failure occurs during the drying phase the cycle is considered to have been terminated after the regeneration phase SOI DT 2003 01 eb 10 599 35 64 85 4 8 Buzzer The buzzer sounds to indicate the end of cycle and in the event of an alarm condition The buzzer sounds three times at the end of the cycle but switches off immediately if the door is opened If the user prefers to switch off the buzzer it is necessary to press a combination of buttons 4 8 1 Activating disactivating the buzzer 1 Cancel any cycles that have been selected dishwasher in selection mode 2 Press 80 to switch the appliance on 3 Press buttons S2 and 3 at the sam
26. erformed and the Salt LED remains unlit 6 14 1 Setting the regeneration level S LD1 102 LD3 1 Cancel any cycles that may have been selected 2 Press key S0 to switch the appliance on 3 Press buttons 52 53 simultaneously and hold down until LEDs LD1 LD2 and LD3 begin to flash 4 Press button 51 LEDs LD2 LD3 switch off while LD1 continues to flash The regeneration level is shown by the display 5L 5 Press button 51 sequentially to modify the level of regeneration Each time the button is pressed the regeneration level increases by 1 level If S1 is pressed after the 10 level has been reached the setting returns to level 1 5L 6L 7L 10L 1L 2L 6 store this setting in memory press button 0 and switch the appliance off alternatively wait for 60 seconds selection mode 6 14 2 Blending function This function is performed inside the fill tank during the water fill phase which depending on the position of the selector automatically blends the softened water with the unsoftened water present in the appliance In practice the softened water is introduced into the appliance through the softening system while the unsoftened water flows via an open by pass duct directly through the steam venting ring If the level of regeneration is set to between 1 and 4 it is advisable to activate the BLENDING
27. f the counters are stored in memory when the door is re closed or when the power supply is restored the water fill resumes from the point at which it was interrupted the new counter values are added to those previously memorized SOI DT 2003 01 eb 19 599 35 64 85 6 7 Level stability during washing Once the fill phase has been completed the cycle proceeds to the washing phase The washing phase is carried out using cold or heated water and the status of the pressure switch is monitored constantly to ensure that the hydraulic system functions correctly Water replenishment cycles may be performed if necessary If the pressure switch returns to EMPTY during the washing phase the fill solenoid is energized for maximum time equivalent to T S x 3 maximum allowable total fill time If this time is exceeded the washing cycle is completed but no further supplementary fills are performed In this situation alarm condition F 0 is stored in memory This alarm code is not displayed to the user but can be accessed by the Service Engineer using a specific procedure 6 8 Washing system The appliance features the classic washing system in which the mechanical washing action is obtained by the rotation of the washing pump which by ducting water into the hydraulic circuit actions the two spray arms simultaneously The washing pump is actioned by an asynchronous motor with a start up capacitor 3uF 450VL The washing pump rotates in a
28. g pump and connected to the duct which feeds the upper spray arm MAIN BOARD X The heating element RR is powered by relay RL1 on the circuit board connector A1 by the ON OFF switch PU and by the level pressure switch RL which must be set to FULL contact closed on 1 3 NEUTRAL Two safety thermostats are fitted to the heating element automatic reset thermostat which intervenes at 98 C a thermostat with a thermal fuse 206 C The temperature of the water is controlled by the main circuit board via an NTC sensor ST which is connected to connectors G5 G6 6 9 1 Integrated detergent dispenser The detergent dispenser is a plastic container consisting of two separate sections The first A contains the detergent the second B contains the Rinse aid The dispenser is of the single coil type and uses a single electrical coil connected to a mechanical system for both functions When the coil is energized it actions the mechanism via a series of levers to introduce detergent in a determined sequence first detergent then rinse aid The coil of the detergent dispenser DD is powered by the circuit board via triac TY5 connector D7 at certain points during the cycle thus ensuring correct dosage The circuit is closed by the contacts of the ON OFF switch PU and the door switch IP Some models feature a rinse aid sensor whose reed contact SB is connected to connectors F3
29. gn bodies level pressure switch blocked on FULL 1 3 hydraulic circuit of pressure switch obstructed wiring faulty circuit board faulty Water leakage from the tub sump and various connections pump upper spray arm duct etc Floating sensor blocked mechanically Microswitch faulty Fill solenoid blocked mechanically Circuit board faulty solenoid triac short circuited Water drain time out The pressure switch does not return to EMPTY after two drain phases lasting 120 seconds The drain pump switches on then the cycle stops The cycle is interrupted and the drain pump switches on Intervention of Anti flooding system the drain pump switches on Water fill to level if necessary SOI DT 2003 01 eb Motor triac short circuited the washing pump runs uncontrolled at maximum speed disactivation of the other actuators cycle interrupted The washing motor runs at maximum speed and the alarm is displayed 27 Circuit board faulty If inside the appliance there is no water at all correct drain but this alarm is displayed check the heater possible dispersion and the anti interference suppressor 599 35 64 85 Toperof Displayed Hass Display to the Description of the alarm condition Machine status Possible causes user Heating element faulty intervention of safety thermostats open wiring faulty NTC sensor poor thermal contact insufficient water circulating in the tub washing pump faul
30. h correspond to the type of alarm see section 9 1 flashing 2 The last 3 alarms can be displayed by pressing 51 When pressed from the 4 to the 10 time the individual components actioned gt LD1 S1 3 s bed 2 2 gt EBD dd gt 52 gt description on page 29 section 10 3 Y 50 On Off 9 9 All the LEDs flash for 30 seconds LD3 53 gt on page 29 section 10 4 flashing The cycle starts automatically LD1 flashing description on page 29 section 10 5 1 Press key S2 and press again the end of cycle LED lights then switches off LED lit function activated LD2 description on page 29 section 10 5 2 fashin key S2 and press again the end of cycle LED lights then switches off 9 LED lit function activated In order to memorize the functions or exit diagnostics mode press key SO to switch the appliance off In most cases memorization exit take place automatically after 60 seconds in To activate the functions available to the user no cycles must be selected i e the appliance must be in pre selection mode SOI DT 2003 01 eb 3 599 35 64 85
31. hen the programme is updated it can decrease by more minutes at a time or stop for longer The end of cycle 0 The possible delayed start time in hours max 19h the time decreases every hour The selected regeneration level during the regulation A possible alarm code in case of failure The condition of the special functions no rinse aid and The condition of the functions that the Service can select 4 3 Washing programmes The number and type of washing programmes depends on the configuration of the appliance Possible options Programme Wash C N Rinses 1 intensive 55 68 3 9 122 I2 Intensive maximum speed 5 68 3 9 9 9 120 I9 _Intensive short 50 6 3 9 9 2 pe e e 302 N2 Normal maximumspeed Cod 68 2 9 9 9 100 209 1 Energy label Axx Cold 162 E4 Energy label Short Cold E E EN ae ee E ee ee INE Fas sensim Sme 1 e e e 3 Q6 1 30 07 Glassware 45 2 73 models with turbidity meter only SOI DT 2003 01 eb 7 599 35 64 85 4 4 Options 441 3in1 Tablet This option can be selected by pressing the corresponding button and remains in memory until the same button is pressed again This option modifies the phases of the programme
32. ints on the board wiring connector PROBE LIST OF COMPONENTS CONTACTS CORRECT VALUES NOTES POWER CABLE amp with ON OFF key t ON OFF SWITCH pressed RR HEATING ELEMENT a connected in series TS SAFETY THERMOSTAT A1 lt gt 2100W PR LEVEL PRESSURE SWITCH B1 C5 a FULL 1 3j PA ANTI FLOODING PRESSURE Mam oa gt loo FULL 1 3 DOOR MICROSWITCH B2 D1 00 Door closed mE INTEGRATED DISPENSER D5 D7 1 5000 8 INFINITE with Rinse ad INFINITE salt 4850 5 25 C TACHYMETRIC SENSOR ao 2102 48 MV FAN MOTOR 11 03 gt 77500 8 REGENERATION SOLENOID C11ec9 gt 6Ko 8 1 DUM CE C11 C7 3 800 Q 8 connected in series C11 500 8 start up winding PL WASH MOTOR To the two motor wires blue red 180 8 PS DRAIN MOTOR C11 e C1 3 180 Q 8 Note Measurement points L and N refer to the pins of the plug fitted to the power cable SOI DT 2003 01 eb 36 599 35 64 85 12 QUICK GUIDE TO THE SPECIAL FUNCTIONS The table below briefly describes how each of the special functions available to the user and to the Service Engineer can be used o a a m ii U IBB E 800 e LD12 i S1 52 S3 54 55 56 Activatio
33. ircuited circuit board faulty memory the cycle continues The cycle continues until the next phase without supplementary fills and without heating The error is cancelled on completion of a drain phase Ge pe Dishes upside down central filter clogged excessive foam leaks from the sump pressure switch coupling pressure switch faulty false contacts Water replenishment Time out 3 times during the T S Time out If it is not possible to access diagnostics mode switch the appliance off and then on again to check that this is not caused by a temporary fault Before replacing the circuit board check that it is correctly powered by controlling the following Continuity of the power cable Correct operation of the suppressor Closure of the door switch contacts Continuity of the wiring between connectors 2 1 on the circuit board and the suppressor SOI DT 2003 01 eb 28 599 35 64 85 10 Diagnostics mode Options A single procedure can be used by Service Engineers to access the diagnostics system After accessing diagnostics mode the Engineer can read cancel the alarms check for correct operation of the various components of the appliance start the diagnostics cycle and select the options available to Service Engineers 10 1 Accessing diagnostics mode E AE ATE SOA O EPA E a m LD1 LD2 LD3 Switch off the appliance Press buttons 51 53 simultaneously and hold down Press
34. irculation of the hot air produced during the hot rinse in which the steam circulates inside the condenser of the fill tank The condenser is a condensation chamber filled with water cold wall contact between the hot air and the cold wall results in the condensation process Depending on the type of appliance one of two drying systems is used ACTIVE DRY drying TURBO DRY drying 7 1 4 Turbo dry drying Certain models feature a forced air drying MAIN BOARD system The steam is drawn in by the fan located inside the upper duct and routed towards the condenser in the fill tank from which it returns to the tub through the steam venting ring The fan motor MV is powered by triac TY6 connector D3 on the circuit board and by the contacts of the ON OFF switch PU and the door switch IP The drying time is variable and pre defined for each washing cycle lt c LLI Common Components In some programmes the fan remains in operation for about 20 minutes after the end of the cycle if the door is opened the fan switches off SOI DT 2003 01 eb 25 599 35 64 85 8 Automatic cycle 8 1 Turbidity sensor Certain models which feature the turbidity sensor may also feature a special automatic programme which optimizes the cycle according to the size of the load and the degree of soiling This sensor is positioned externally to the sump in direct contact with the water A sing
35. key S0 to switch the appliance on still holding down buttons 51 53 until LEDs LD1 LD2 and LD3 begin to flash ae aa 10 2 Reading the alarms and activating the individual components 1 Access diagnostics mode see 10 1 2 Press button 1 to start the function LEDs LD2 and LD3 switch off LD1 continues to flash The first alarm stored in memory is displayed 0 for the codification see the summary table of the alarms pages 27 28 3 Press S1 to display the other two alarms and to activate the electrical components The display shows after the first three alarms the number corresponding to the activated function 4 Allthe positions can be repeated by pressing sequentially S1 1 B 9 Reading ofthe last alarm occurred 2 9 Reading ofthe last alarm but one occurred 3 D 9 Reading of the last alarm but two occured 4 H 9 Activation of the solenoid regeneration 8 5 9 Activationofdrainpump gt SSS 6 1 9 Waterfil solenoid to level 8 1 B Weshngpumpat280g 9 1 9 Detergentirinse aid dispenser O Z o Z o 10 iQ 9 Dyigfan ftubo dry S The components are powered when the door is closed open the door to select a different component then re close the door If button 51 is not pressed for 60 seconds the system automatically exits diagnostics mode SOI DT 2003 01 eb 29 599 35
36. l pressure switch A The anti overflow pressure switch B ensures that the level of water does not exceed the safety threshold causing overflow from the door 6 4 2 Fill system The water fill solenoid valve is powered by triac MAIN BOARD TY2 on the electronic board connector C7 by the door switch IP and by the anti flooding microswitch DA The level of water in the sump is monitored by the pressure switch RL The electronic board constantly monitors the status of the pressure switch via a sensing line connected to connector C5 NEUTRAL Common Components gt EMPTY ifthe contacts are closed on 1 2 c FULL if the contacts are closed on 1 3 6 4 3 Anti flooding device Intervention of the anti flooding device causes the contacts of the microswitch DA to open thus disconnecting the solenoid valve from the power supply 6 4 4 Intervention of the anti overflow system If the anti overflow pressure switch PA should intervene the closure of the contact on FULL 1 3 powers the drain pump PS The pump remains in operation until the contact returns to EMPTY 1 2 MAIN BOARD NEUTRAL o a 8 c o amp SOI DT 2003 01 eb 18 599 35 64 85 6 5 Control of water fill phase The quantity of water necessary to carry out the washing cycle is determined exclusively by the closure of the electrical contact of the pressure switch which changes from EMPTY
37. le container houses the NTC sensor for control of the washing temperature and the infra red opto electronic sensor which controls the turbidity of the water and therefore the degree of soiling that it contains 8 1 1 Calculating the degree of soiling Measurement of the level of turbidity is performed during the cold pre wash The photoemitting diode which is powered by the circuit board connector G7 transmits a beam of light to the photoreceiver The circuit of the photoreceiver connector G8 on the circuit board G6 is the common contact is traversed by a certain current whose intensity is proportional to the quantity of light received i e inversely proportional to the level of turbidity The microprocessor measures the signal present in the circuit and can thus determine the most appropriate cycle according to the quantity of soiling present in the water Common Components Turbidity ST 8 1 2 Determination of the load temperature The quantity of dishes in the load full load or 1 2 1 2 load load is determined during the initial heating phase during washing by controlling the rate at which the temperature of the water increases threshold NTC sensor connector G5 e Full load when the inclination of the curve is i ei full load below a certain threshold which is memorized as standard Half load when the inclination of the curve is above the standard threshol
38. le is about 50 minutes At the beginning of the subsequent programme i e after the test cycle the resins are washed SOI DT 2003 01 eb 30 599 35 64 85 10 5 Options available to Service Engineers In particular circumstances i e if the user reports unsatisfactory washing results a special procedure available only to Service Engineers can be used to select two supplementary options designed to improve performance xtra cold rinse e Disabling of pulse washing PW replaced by continuous washing Ctrl 10 5 1 Selecting the extra cold rinse option Using the procedure described below it is possible to add a supplementary cold rinse in all the washing programmes This improves the quality of the rinse in case of necessity jam 1 Access diagnostics mode see 10 1 2 Press buttons 51 52 simultaneously The display indicates the status of the function extra rinse not selected extra rinse active Press button 51 to activate and disactivate this function OA extra rinse not selected extra rinse selected To store the operation in memory press key S0 and switch the appliance off alternatively wait for 60 seconds appliance in selection mode A Ew SOI DT 2003 01 eb 31 599 35 64 85 10 5 2 Disabling pulse washing Certain programmes use the pulse washing system PW Using the procedure described below the Service Engineer can modify this system so that Ctrl continuou
39. liance proceeds to the subsequent phase d rr Lr 2 If as a result of a problem in the drain phase the pressure switch contact remains closed on FULL i e if there is water in the hydraulic circuit the drain phase is repeated On completion of this second drain phase the status of the pressure switch is again checked If itis still closed on FULL alarm i20 is generated failure to drain The time out for each of these two phases is 120 seconds Common Components N B The washing programmes always begin with a drain phase SOI DT 2003 01 eb 22 599 35 64 85 6 12 Regeneration system Regeneration of the softening system whose duration is approximately 4 minutes is normally performed at the beginning of the drying phase Each time regeneration is performed the regeneration solenoid 4 is energized the chamber is completely emptied about 230 cc of water Regeneration is controlled by the electronic control system Ad Hoc i e not at each washing cycle but rather at intervals determined by the level of regeneration selected If level 1 is selected regeneration is never performed and the SALT LED if featured always remains unlit If level 10 is selected regeneration is performed twice during each cycle first at the end of the washing phase and then at the beginning of the drying phase The regeneration solenoid ER is powered by triac TY1 connector C9 on the circuit board and
40. m a minimum of 3 to a maximum of 6 Number of LEDs max 9 7 LD1 LD2 LD3 LD4 LD5 LD6 i 010 E EE e LD11 LD 50 51 52 3 54 55 56 bL mon ni m 4 1 1 ON OFF button 50 The ON OFF button is featured on all models in the range and is used to switch the appliance on and off Switching off does not cancel the programme being executed 4 2 Programme Option buttons 51 56 The functions of the various buttons depend exclusively on the software configuration of each appliance which can feature from 3 to 6 buttons Also the selection of the washing programmes changes according to the configuration of each appliance The buttons 51 52 53 are always featured because perform special functions MODELS WITH DIRECT SELECTION MODELS WITH SEQUENTIAL SELECTION o V2 o 7 O0 Wo L3ini LCANCEL n Jog S og owo o Jkr eoo 0 To each button corresponds a specific programme In these versions one or two buttons are featured to select the programmes Open the door and switch the appliance 50 1 Open the door and switch the appliance on 50 All programme LEDs light to indicate the selection The display shows phase except 3 1 if disabled 2 Press button gt to select with an increasing Press a button to select a programme order The relative LED remain
41. n of the function Starting the function 2 Keys Led s Keys Led s 51 S2 Select regeneration 50 On Off Disactivate rinse S0 On Off aid a S2 S3 S0 On Off LD1 LD2 LD3 USER LD1 LD2 flashing flashing LD1 LD2 LD3 description on page 23 section 6 15 L1 L2 N of flashes 1 2 Example level 3 3 flashes 5 sec pause repeated for 1 minute LD1 flashing and in sequence up to LD2 description on page 21 section 6 11 gt 52 gt key S2 and press again the end of cycle LED lights then switches off flashing is LED lit function activated LD3 description on page 10 section 4 6 1 Disactivate buzzer 2 gt gt 53 gt flashin key S3 and press again the end of cycle LED lights then switches off 52 63 flashing 9 LED lit function activated Display of alarms and components diagnostics S1 S3 D 50 On Off LD1 LD2 LD3 3 flashing LD1 LD2 LD3 S1 S3 Test cycle 2 gt flashin S0 On Off 9 LD1 LD2 LD3 pot el Extra rinse 2 Sucre 50 On Off 9 51 S1 S3 S2 3 Disable buttons 9 LDI LD2 LD3 2 50 On Off 52 v N TT Z 2 TT o 2 0 v flashing Exit Memorize which case the appliance returns to pre selection mode description on page 28 section 10 2 The end of cycle LED emits a series of flashes whic
42. s washing is used in all those programme which normally use the PW system This intensifies the washing action even in delicate programmes Disactivation activation mode 1 Access diagnostics mode see 10 1 2 Press buttons 52 53 simultaneously The display indicates the status of the function continuous washing Ctrl 1P pulse washing PW active 3 Press button 52 to activate and disactivate this function continuous washing Ctrl 1P pulse washing PW active 4 Tostore the operation in memory press key SO and switch the appliance off or wait for 60 seconds appliance in selection mode 10 6 Exiting diagnostics mode o 1 exit the diagnostics cycle press key SO and switch the appliance off Or 2 wait 60 seconds the appliance returns to programme selection mode SOI DT 2003 01 eb 32 599 35 64 85 11 ELECTRICAL FUNCTIONS 11 1 Electrical circuit diagram A yl D cle EE RIT olo T 2 i L 19 7 3 1 Map L7 ED ED KD 7654321 654321 7 5 3 1 UR ot wed 8 0 pei ERSTE n os ae LU z c p 5 9 J J J J J l c 4 Ps 3 E 2 J J g uU ru ru
43. s on while the other LEDs relative to the programme buttons flash switch off If featured The display shows the flashing time to end The display shows the last selected flashing Set the possible option or the delayed start if programme Every time the button is pressed the available following programme is selected increasingly 7 Close the door to start the cycle e 22 3 The digits light steady Press button lt to select with a decreasing order The LEDs relative to the programme buttons light if featured The display shows the last selected flashing programme Every time the button is pressed the previous programme is selected 7 6 5 Set the possible option or the delayed start if available Close the door to start the cycle The digits light steady SOI DT 2003 01 eb 6 599 35 64 85 4 2 1 Indicator LEDs 1010 1042 The functionalities of the LEDs depend on the configuration software of each appliance Salt indicates that the salt reservoir is empty If the level of regeneration is set to 1 no regeneration this LED remains unlit at all times Rinse aid indicates that the rinse aid reservoir is empty End of cycle lights when the programmes has terminated 4 2 2 Display The display which consists of 2 5 digits can indicate gt indicative time to end of the programme in minute The countdown is carried out every minute and updated at the end of each programme phase w
44. ty impeller stripped circuit board faulty Heating Time out The programme continues to the the check takes place every 3 minutes end without heating the washing the temperature must increase by a result will probably be certain amount at each step unsatisfactory The programme continues to the end without heating the washing NTC sensor faulty wiring short circuited open result will probably be circuit board faulty unsatisfactory Communication error between the Machine inoperative no selection 1 microprocessor the EEPROM possible l The fault occurs when switching Circuit board faulty 91 90 WIEN no selection possible configuration software incorrect n NO Problems with the turbidity meter catia 2 Turbidity sensor faulty sensor wiring faulty circuit LI NTC sensor short circuited or open if featured Calibration Time out board faulty detected The heating element is switched Problems with the washing motor no off If the fault persists after the signal from the tachymetric generator Time out the washing pump washing pump powered but no signal operates at maximum speed and from the generator the alarm code is stored in Motor winding interrupted short circuited motor jammed foreign bodies wiring to washing motor faulty motor capacitor faulty Tachymetric generator interrupted short c
45. ure switch signals FULL the fill solenoid valve switches off 6 6 Water fill time The aperture of the solenoid valve has a pre set overall duration which is subdivided into the various sub phases of the fill 6 6 1 Static fill time T S max 90 seconds This is the maximum time within which the pressure switch must switch to FULL If the FULL signal is not received from the pressure switch within this time the electronic control system interrupts the washing cycle and the appliance enters alarm condition 1 0 6 6 2 Dynamic fill time T D T S x 3 This is the maximum time allowed for the entire fill phase within which the pressure switch signal must stabilize on FULL e f the pressure switch signal does not stabilize on FULL within this period T S x 3 the electronic control system switches off the fill solenoid and the heating element if switched on and then allows the washing cycle to proceed until it is completed In this situation the alarm condition F 0 is not displayed to the user but may be accessed by the Service Engineer using a specific procedure e lf during a 2800 rpm dynamic fill the pressure switch never closes on FULL during the initial 60 seconds the electronic control system interrupts the washing cycle and the appliance enters alarm condition 1 0 6 6 3 Power supply interruption during water fill If the water fill phase is interrupted by opening the door or due to a power failure the contents o
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