SERVICE MANUAL DISHWASHERS
Contents
1. 32 11 ELECTRIGAETIJNGTIONS 33 11 1 33 11 2 Basie 080 34 US CIC UNE CAG mmm 34 11 3 Table Of programmes c cscsecccccceesseeeeceeseceeccseueceeesaesseceeseeaaeeeeeeseaeeeesesaaeeceessaaaeeeeessaaseeeeessaaaes 35 11 4 Checking the efficiency of the components cccccsssececceeececceseeecseseeeeseeeecseuseeessageeseseneeesseaes 36 11 5 Measurement points on the board wiring 36 12 QUICK GUIDE TO THE SPECIAL FUNCTIONS 37 SOI DT 2003 01 eb 4 999 35 63 72 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 1500 1510 electronic control system These appliances are manufactured at Solaro Italy The EDW1500 1510 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 characteristi2. P M 9 4 3 4 s 9 4 3 5 BICI ORCI D T UU D m Tc 9 A 1611 711410 T E 10 4 4 1 Canceling a programme a a 10 4 4 2 554255 2 225 555 2 TUTUP 10 4 4 3 Interruption of a programme pause 10 AS e I II T EE 10 4 6 B zzer olhlycertalmanogels ve dee dte eal pie UDINE 11 4 6 1 Activating disactivaling the 2268 ca Dunk ict 11 47 Sequence of ODeratlO lS eoo iod ee Ee ea eee Fuels aue es Oda exe icu Rom bed eu EXE ox 12 5 STRUCTURAL CHARACTERISTICS Ran Oe e T Taanon 13 24 21 13 5 2 Hydraulic and functional characteristics esses 13 Dio AVEC CIC U Dm 14 6 ELECTRICAL COMPONENTS AND THEIR 15 6 1 EDW1500 1510 Electronic control system cccccccsseeecceeeeeeceeeeeecseseeeseeseeessaeeecsuseesssaseeessageeees 15 6 1 1 Beton OF thiexelteull DOSE aum vec ean diode
3. 2 Common Components N B The washing programmes always begin with a drain phase SOI DT 2003 01 eb 22 599 35 63 72 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 i e not at each washing cycle but rather at intervals determined by the level of regeneration selected 1 level 1 is selected regeneration is never performed and the SALT LED if featured always remains unlit v 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 UNO AS triac TY1 connector C9 on the circuit board and by the contacts of the ON OFF switch PU and the door switch IP 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 241 E Lu Common Components 6 13 Resin washing Washing of the resins contained in the softening system is perfo
4. 15 6 1 2 MEMORY an the control SY SUSI oe dude etae eese ic cries eaae pete 15 6 2 Specifications for actuators and SENSOMS cccccsssccccessececcesececcseuececseuececceueeeessedeeecseueeessseseeessageees 16 6 2 1 COmbOFPGLils d ea cbe recle ie er 16 6 2 2 EI E E dui Lou ini 16 6 3 Power supply and programme selection ccccceeccccceseeecceesceeceeuseeceeeceeseuueeessaseeecssueeesssuseessnaaeees 17 Veces er 18 6 4 1 Level and anti overflow pressure Switch vaa qup Dod ee ee 18 6 4 2 mE lm T Hr 18 6 4 3 Dvrisileerolel y ior 18 6 4 4 Intervention of the anti overflow system esssssessssssssesesee eene nennen nnnm nennen nnne nnns nnns nenne nnns 18 6 5 OonltroLor Water ll plas uideo inen Ree UE deer RT 19 6 5 1 pr Hr THER 19 6 5 2 TT REN EN 19 6 5 3 Bu e Te 19 66 Water EU ttem 19 6 6 1 eiut Re t Le o etri ix quas ne quce ue i a 19 6 6 2 Dynamic T x mem hg aga ss
5. 19 6 6 3 Power supply interruption during water fill ccccccsseecccecceeeeceecceeeeeeeceeaeceeseueueeeeeaueeeeeseaeceessaaeeeeesasaaes 19 6 7 Level stability during 0 en onde e aoo tim dicia eon nd Diei tien 23 20 0 9 12 11 a a iaa dk a 20 6 8 1 Control orihe Was 54 5485344 55558 e eeu dee e Pec cte odios 20 s uote m LET 21 6 9 1 Integrated detergent dispens E sessi ucc cir p qute 21 6 10 Disactivating the rinse aid function ua b Gai ee uie ce entre Eg PR c FG a aa 22 6 11 Wr me TT B 22 6 12 Rogeneralorn Ncc TQ TU 23 6 13 mista 23 6 14 mise sue c PO 24 6 14 1 Setting the regeneration level rione 24 0 142 TUNGO m RPM 24 6 14 3 Table of regeneration Values 222202 25 7 DIINO naa ERR 25 7 1 1 o mE 25 SOI DT 2003 01 eb 3 999 35 63 72 8 Automate Cyel E 26 ar rar
6. LDS 4806 109 1010 1011 1012 This is 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 T Press button 53 to start the cycle steady The display shows the time to end accessible SOI DT 2003 01 Access diagnostics mode see 10 1 30 mi o 5053 The LEDs 101 102 switch off while LD3 continues to flash while the LED of the current phase is The programme the programme behaves as in a normal cycle the PAUSE and CANCEL options are 999 35 63 72 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 e Extra 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 oo c 2 1 Access diagnostics mode see 10 1 2 Press buttons 1 S2 simultaneously 5
7. 120 L8 Intensive shor 59 68 s e 8 8 2 1087 N2 Normal maximum speed Cold 68 2 9 100 N5 Normal3Rinses Cod 5 3 E1 Energy label Axx Cold 50 162 E4 Energy label Short Cold 55 Lind imu te ete te tet 05 JShot30omn 65max 1 9 Q6 1 3 07 _ 4 73 models with turbidity meter only Programme Pre wash C Wash C 43 Options 4 3 1 3 in 1 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 in order to optimize performance when 3 in 1 detergent tablets are used variation of the duration of the programme and the temperatures required to dissolve the detergent tablets reduction of water exchange partial drain phases 4 exclusion of introduction of rinse aid exclusion of regeneration resin washing 4 3 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
8. This option adds one cold rinse with pulse washing with a duration of about 5 minutes SOI DT 2003 01 eb 8 599 35 63 72 4 3 3 1 2 load The 1 2 load option optimizes the washing cycle when only small load is placed in the appliance 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 5 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 is not available in the following cycles Intensive Short 30 minutes Soak Heating plates and Glassware 4 3 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 fused 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 4 3 5 Delayed start Proceed as follows to
9. gon E4 Energy label Short amp 50 2 1556 i2 4 Pwi 54 14 16 5 5 x 15 17 Es permet mue ew goon Auto 1 Automatic 50 65 8 4 688 cod 4 v 9 Pw 68 Q4 8 1 1 1 1 01 1 ctrl N A 2 1 1 1 6 1 1 19 1 1 1 1 1 G6 Piate heating 1 1 1 1 1 1 2 1 1 1 Qr Glassware se o 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 not include the times for regeneration washing of the resins which being performed Ad 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 SOI DT 2003 01 eb 35 599 35 63 72 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 5 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
10. LD2 LD3 and components 1 chin gt diagnostics SO On Off 9 0 m Cancel alarms 51 93 3 LD1 102 LD3 gt 22 stored in memory 50 flashing 51 S3 TT T LD1 LD2 LD3 gt LD3 description on page 30 capitolo 10 4 Lu flashing flashing 50 The cycle starts automatically gt s 53 S1 S2 Extra rinse gt mE LD3 gt 0 50 9 51 S3 E Disable buttons gt E LD3 gt A 50 9 LD1 gt description on page 31 capitolo 10 5 1 flashing Press 51 and press again 1A rinse m OA not activated LD2 description on page 31 capitolo 10 5 2 flashing gt Press S2 and press again 1P pulse wash PW activated OP continuous wash Ext In order to memorize the functions or exit diagnostics Te press key SO to switch the appliance off In most cases memorization exit take place automatically after 60 seconds in which case the appliance returns to pre selection mode 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 37 999 35 63 72
11. Turbidity Turbidity sensor ST Temperature sensor 999 35 63 72 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 st 1 Wash 1 Cold Rinse 2nd Cold Rinse Rinse Hot rinse Programmes 000 M o gl 8 8 2 8 584 8 8 5 elo o EE Lio Programme 5 5 o o 5 o 6 55 5 o scs 35 5 5 8 gi les F p olz o 5 E E 5 5 intensive 5 17 Wi 58 peu intensive ctrl 68 C 14 8 ps em o ps paris pee p intensive short 58 s pm pe 68 EA TNT Normal PW 7 Normal soc 8 af on or CNS 1 or ese at pa Delicate soc z ssc 12 Pw jemi 1 15 ose Tr npo Et Energy labe Axx ERKAGI aol ies pn e To n
12. result will probably be unsatisfactory Communication error between the Machine inoperative no selection microprocessor and the EEPROM possible CHEMIE Doane aul The fault occurs when switching Circuit board faulty FIODIGIIS WIBESOIWSTECODHSUESHOR on no selection possible configuration software incorrect Problems with the turbidity meter The programme continues as if a if featured Calibration Time out neay 27 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 15 stored in circuit board faulty Turbidity sensor faulty sensor wiring faulty circuit board faulty Motor winding interrupted short circuited motor jammed foreign bodies wiring to washing motor faulty motor capacitor faulty Tachymetric generator interrupted short circuited 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 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 po
13. 1 LEDs LD2 LD3 switch 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 101 1L 2L 6 Tostore this setting in memory press button SO 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 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 1590 The BLENDING function is activated using the selector knob located inside the
14. a a 26 8 1 1 Calculating ihe degree Ol SOmNING eee eee 26 8 1 2 16 OAC reat eel rad ce aed atts ies 26 9 2 sAULOMIATIC Programe 425255805058 26 9 27 imde uti 27 10 Diagnostics mode 29 10 1 Accessing diagnostics mode sssessesssssesssseeeseene nennen nenne nena nennt hann n nnns enar nnns 29 10 2 Reading the alarms and activating the individual 29 10 3 Cancelling alarm codes from memory Testing the 8 30 10 4 miUlsreiieizibis culpe HM 30 TOA 10 6 6 RE E 30 10 5 Options available to Service Engineers a a 31 10 5 1 Selecting the extra cold rinse option 0 0 ceeeccccccccsseeseeceeeeeeseeseeeceeeeeeeeseececeeessueaeeeeeeeessaueaeeeeeeesssaaaneeeeees 31 10 5 2 1 ite eni vaca E eacus ade Ak aed 32 10 6 1006
15. any cycles that may have been selected 2 Press 50 to switch the appliance 3 Press buttons 52 53 simultaneously and hold down until LEDs LD1 LD2 and LD3 begin to flash eo 0 B se 4 Press button S2 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 S2 again to disactivate activate the rinse aid function 6 Tostore this setting in memory press button SO 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 connector C1 and 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 appliance proceeds to the subsequent phase 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 it is still closed on FULL alarm i20 is generated failure to drain The time out for each of these two phases is 120 seconds d
16. 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 l Turbo fan Drying duct Fill tank condenser Counterweight Base Heater Ie Softener Wash pump Sump Drain pump SOI DT 2003 01 eb 13 599 35 63 72 5 3 Hydraulic circuit 11 11 12 Sump assembly 13 Wash pump 14 Tube enclosed heating element 15 Drain pump 16 Non return valve 8 Salt Reservoir 18 Drying duct fan 19 Anti flooding device 10 Level pressure switch SOI DT 2003 01 eb 14 999 35 63 72 6 ELECTRICAL COMPONENTS AND THEIR FUNCTIONS 6 1 EDW1500 1510 Electronic control system The EDW1500 control system consists of a main circuit board and a control display board Both boards are housed in a plastic container Version with horizontal buttons Version with vertical buttons POOOOE gt 6 1 1 Functions of the circuit board ELECTRICAL LOADS MAIN CIRCUIT BOARD The circuit board receives signals relative to the cycle settings via the control display board The buttons and LEDs are also mounted on this board The board also powers all the electrical components solenoid valves washing pump detergent rinse aid dispe
17. select the delayed start time Close 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 up to 19h 7 22 3 19 O oelect the programme and the possible options For some seconds the display shows the time to end of the cycle then the delay time 3 seconds after the last selection the delay time is activated The display lights steady and the countdown starts the time decreases every hour 19 18 17 1 gt 0 During the countdown till the programme starts it is possible to modify the delay time or cancel it the programme starts automatically The display shows the time to end of the cycle FR EO ENA GOD The delayed start countdown can also be selected as follows Press button 50 to switch on the appliance Select the programme and the possible options Within 3 seconds press sequentially the button to select the delay time 3 seconds after the selection the delay time and the countdown start with the same modalities previously described pude SOI DT 2003 01 eb 9 599 35 63 72 4 4 Modifying programme 4 4 1 Cancelling a programme reset RS EI cancel a programme that has already started proceed as follows 1 Open the door carefully and press buttons S2 S3 together for approximately 2 seconds the
18. 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 wiring faulty 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 SOI DT 2003 01 eb 27 599 35 63 72 No flashes Type of of end of yp to the Description of the alarm condition Machine status Possible causes alarm cycle LED user and 5 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 Heating element faulty intervention of safety thermostats open wiring faulty NTC sensor poor thermal contact insufficient water circulating in the hi faulty circui Overheating The cycle stops and the drain tub washing Pu er stripped circuit Temperature higher than 78 C pump starts The programme continues to the end without heating the washing NTC sensor short circuited or open NTC sensor faulty wiring short circuited open
19. 4 Electrolux SERVICE MANUAL Distriparts DISHWASHERS Dishwasher with EDW 1500 1510 electronic control system ELECTROLUX ITALIA S p A Publication no Functionalities Spares Operations Italy Corso Lino Zanussi 30 DIVA 60 33080 PORCIA PN ITALY 599 35 63 72 Prod N 911 916 xxx F S Free standing Fax 39 0434 394096 EN Prod N 911 926 xxx B I Partially integrated Production Edition 2010 01 28 ZM Solaro IT SOI DT 2003 01 eb 1 999 35 63 72 SOI DT 2003 01 eb 2 999 35 63 72 CONTENTS 1 Purpose OF MIS cda R E Mis Ga bd 5 2 PRECAUTION S eee ee eee E 5 3 GENERAL CRARAG I ERIS HCS vomsaseaterunesamtaacccantasaiasa EURO a 5 4 C NTROLGRANEI 6 M EO um 6 4 1 1 ON OFF 45225 0 0454 rm 7 4 1 2 Programme Option buttons 91 96 7 4 1 3 28 2 EBrAGEDILUTECEEc 7 4 1 4 BE E N E 8 22 NV ashing PrOOramimes 8 2 2 RUNE an 8 4 3 1 EBD gcc 8 4 3 2 52 DERE 8 4 3 3 PANO A
20. INTERFACE contacts 1 5 and 2 4 of the ON OFF button PU The connectors used in this case are A2 neutral and B1 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 zT LLI Common Components When the door is opened the power loads are disconnected from the power supply and the cycle is paused SOI DT 2003 01 eb 17 999 35 63 72 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 level pressure switch A e 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 c EMPTY if the contacts are closed 1 2 gt FULL if the cont
21. LED corresponding to the cycle being executed begins to flash 2 After about two seconds all the LEDs and the display switch off the programme is now cancelled and the appliance returns to the selection mode 4 4 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 modify a programme that has already started first cancel it see corresponding parag and then perform the new selections Or 1 Press the button of the new programme for about 6 seconds the LED of the current programme begins to flash 2 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 4 3 Interruption of a programme pause Proceed as follows to interrupt a programme that has already started 1 Press SO to switch the appliance off 2 To re start the cycle press SO again The programme starts from the point at which it was interrupted If you open the door the cycle interrupts re closing it 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
22. T Y6 connector D3 on the circuit board and by the contacts of the ON OFF switch PU and the door B 03 switch IP The drying time is variable and pre defined for each washing cycle NEUTRAL 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 25 999 35 63 72 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 single 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 MAIN BOARD 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 acertain current whose intensity is proportional to the quantity of light received i e inversely proportional to the level of tur
23. The display indicates the status of the function extra rinse not selected extra rinse active se 3 Press button 51 to activate and disactivate this function 0 extra rinse not selected extra rinse selected 4 store the operation in memory press key SO and switch the appliance off alternatively wait for 60 seconds appliance in selection mode SOI DT 2003 01 31 999 35 63 72 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 continuous 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 2 1 Access diagnostics mode see 10 1 2 Press buttons 52 53 simultaneously The display indicates the status of the function continuous washing Ctrl pulse washing PW active 2 3 Press button 52 to activate and disactivate this function continuous washing Ctrl pulse washing PW active 4 store 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 mo
24. acts 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 MAUN BOARD 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 NEUTRAL t o a 8 c o amp is switched off the drain pump is disactivated If the door is opened the appliance SOI DT 2003 01 eb 18 599 35 63 72 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 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 15 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
25. ain 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 triac T Y5 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 F4 on the circuit board The absence of rinse aid causes the contact to close which lights the corresponding LED on the display board lt 2 222 Common Components SOI DT 2003 01 eb 21 999 35 63 72 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 LD1 LD2 103 1 Cancel
26. bidity 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 The quantity of dishes in the load full load or 1 2 temperature load is determined during the initial heating 1 2 load phase during washing by controlling the rate at which the temperature of the water increases NTC sensor connector G5 threshold 5 Full load when the inclination of the curve is below a certain threshold which is memorized P full load as standard Half load when the inclination of the curve is above the standard threshold 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 phases o Cold no 682 C 24 min SOI DT 2003 01 eb 26 599 35 63 72 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 condit
27. cs e Control panel and programmes e 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 230 V 50 Hz limits 187 254 V Total power absorption 5 2300 W Mains water supply gt Pressure Min Max 5 80 N cm Capacity 12 place settings Dimensions width gt 59 6 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 gt Button actioned min 3 max 6 Display gt Display 2 5 digits and LEDs Washing system gt Combined Pulse Control of water level gt 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 gt Total protection hydraulic Software SOI DT 2003 01 eb 5 599 35 63 72 4 4 1 Control panel The configuration of the control panel depends on the follow
28. de cm 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 32 599 35 63 72 11 ELECTRICAL FUNCTIONS 11 1 Electrical circuit diagram BL MA SMAI COP OLN GI VE JN CO meds 599 35 63 72 SOI DT 2003 01 11 2 Basic circuit diagram 11 2 1 Key to circuit diagram AR Orange Bl White BL Blue CE Light blue GI VE Yellow Green MA Brown SOI DT 2003 01 eb NEUTRAL NE Black RO Pink VI Lilac AAIDA Anti flooding device Beamer Beamer 4 5 COMMON COMPONENTS CO Capacitor DD Detergent Rinse aid dispenser EC Fill solenoid ER Regeneration solenoid GA Suppressor IP Door switch MV Fan motor PL Washing pump PS Drain pump PU Pushbutton array 34 MAIN BOARD WASH DRAIN MR General terminal block PR RL Level pressure switch Turbidity ST PA Anti overflow pressure Tachymetric generator switch TS Safety thermostat RR Heating element Main Board Main board SB Rinse aid sensor User Interface Display board SS Salt sensor
29. eds 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 4 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 63 72 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 washing 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 athermostat with a thermal fuse 206 C The temperature of the water is controlled by the m
30. epend on the configuration software of each appliance Washing lights when the washing phase is performed during the selection if featured JV Drying lights when the drying phase is performed and during the selection if featured End of cycle lights when the programmes ended Salt indicates that the salt reservoir is empty If the level of regeneration 15 set to 1 regeneration this LED remains unlit at all times Rinse aid indicates that the rinse aid reservoir is empty SOI DT 2003 01 eb 7 999 35 63 72 4 1 4 Display The display which consists of 2 5 digits can indicate The 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 when 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 02002 4090 4 2 Washing programmes The number and type of washing programmes depends on the configuration of the appliance Possible options Ee LLL eS I2 Intensive maximum speed 5 68 3
31. hing time to end The indicator LEDs of the phase of the cycle light Within 3 seconds after the programme selection it is possible to set the eventual option or the delayed start if available Automatically 3 seconds after the last pressure of a button the cycle starts On the display the time to end lights steady and the LED of the current phase is on E ENS ee MODELS WITH SEQUENTIAL SELECTION In these versions two buttons are used to select the programmes Close the door and switch the appliance on SO The display shows Press button gt to select with an increasing 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 following programme is selected increasingly 12 22 3 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 Within 3 seconds after the programme selection it is possible to set the possible option or the delayed start if available 5 Automatically 3 seconds after the last pressure of a button the cycle starts The digits and the LED indicating the current phase are FEN ES FEL 4 1 3 Indicator LEDs LD7 LD12 The functionalities of the LEDs d
32. ing Typology of the electronic board horizontal buttons vertical buttons Number of programme selection buttons from a minimum of to a maximum of 6 Number of LEDs max 13 Position of the ON OFF button right or left Version EDW1500 with horizontal buttons Version EDW1510 Version EDW1500 with vertical buttons Key 50 51 56 LD1 LD6 LD7 LD12 SOI DT 2003 01 eb ON OFF button Programme option selection buttons Programme Option indicator LEDs Indicator LEDs phases warnings washing drying end of cycle salt rinse aid 6 599 35 63 72 4 11 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 The corresponding pilot lamp LO lights to indicate that the appliance is powered 4 1 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 S1 S2 S3 are always featured because perform special functions MODELS WITH DIRECT SELECTION To each button corresponds a specific programme Close the door and switch the appliance on SO Press a button to select a programme The relative LED lights The display shows the flas
33. ions are displayed to the user The alarms are displayed by the display and with a series of beeps from the buzzer only certain models 9 1 Table of alarms No flashes of end of cycle LED and beeps Displayed to the user Type of alarm Description of the alarm condition 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 rom Water drain time out The pressure switch does not return to EMPTY after two drain phases lasting 120 seconds Intervention of Anti flooding system the drain pump switches on Motor triac short circuited the washing pump runs uncontrolled at maximum speed Machine status The drain pump switches on then the cycle stops The drain pump switches on then the cycle stops The cycle is interrupted and the drain pump switches on Water fill to level if necessary disactivation of the other actuators cycle interrupted The washing motor runs at maximum speed and the alarm is displayed Possible causes Tap closed water mains pressure too low fill solenoid wiring faulty hydraulic circuit of pressure switch obstructed level pressure switch wiring faulty circuit board faulty solenoid triac short circuited Drain circuit obstructed blocked drain pump interrupted or jammed foreign bodies level pressure switch blocked on FULL
34. 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 soeed which depends on the washing system that will be performed in the phases subsequent to the water fill Inthe case of 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 pressure 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 i
35. ishment cycles may be performed if necessary If the pressure switch returns to EMPTY during the washing phase the fill solenoid is energized for a 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 450VL The washing pump rotates in a 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 gt Washing at constant speed 2800 rpm maximum speed of the motor pw 5 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 PWiPuses 280m ossee The ctrl and pw spe
36. nser 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 0 44 6 1 2 Memory in the control system Power Fail and machine status EEPROM Configuration of external the appliance Asynchronous external serial port Synchronous serial Internal serial p 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 15 999 35 63 72 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 6 2 2 Sensors Temperature sensor NTC COMPARATIVE VALUES Temperature Nominal value C SOI DT 2003 01 eb 16 599 35 63 72 6 3 Power supply and programme selection The main board is powered by the closure of USER
37. returns to programme selection mode 4 5 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 63 72 4 6 Buzzer only certain models Normally this series of appliances does not feature the buzzer but some models do 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 6 1 Activating disactivating the buzzer 1 Cancel any cycles that have been selected 2 Press 50 to switch the appliance 3 Press buttons S2 and S3 at the same time until LEDs LD1 LD2 and LD3 begin to flash se Press button 53 LEDs LD1 and LD2 switch off while LD3 continues to flash The condition of the buzzer is indicated by the display 1b buzzer on Ob buzzer off Press button S3 again to disactivate activate the buzzer To store this operation in memory press b
38. rmed 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 SOI DT 2003 01 eb 23 599 35 63 72 6 14 Regeneration levels The counter for execution of the Ad Hoc regeneration process 15 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 performed and the Salt LED remains unlit 6 14 1 Setting the regeneration level e 1 Cancel any cycles that may have been selected 2 Press key SO to switch the appliance on 3 Press buttons S2 S3 simultaneously and hold down until LEDs LD1 LD2 and LD3 begin to flash o LSL 8 se oe 4 Press button
39. s the maximum time allowed for the entire fill phase within which the pressure switch signal must stabilize on FULL e 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 f 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 of 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 63 72 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 replen
40. special functions available to the user and to the Service Engineer can be used Activation of the ETG aaa ee LD1 1 G1 LD4 54 O i LD1 LD2 LD3 LD4 LD5 Q 88 11 9 88 tf OLD6OLD9 LD2 2 LD5 1 85 1029 O LD9 18 O LD10 S0 lu m Starting the function Keys Led s Keys S1 52 LD1 Select regeneration ilashin 2 SO On Off 9 50 LD1 LD2 LD3 0 9 aid S S3 flashing 50 c LD1 LD2 LD3 Disactivate buzzer gt gt 53 flashing Led s description on page 24 6 14 55 51 LD1 2L Liv 1L 8L 4L 5L 6L flashing description on page 22 chapter 6 10 LD2 Se flashing Press 52 and press again 1d rinse aid activated Od not activated S3 3 08 flashing description on page 11 capitolo 4 6 1 Press S3 and press again 1b buzzer activated Ob not activated description on page 29 capitolo 10 2 gt Press button 51 0 4 5 6 7 8 9 10 AL 19 AL2 AL3 5 DD MV LD1 flashing description on page 30 capitolo 10 3 S2 3 e descripti itolo 10 3 flashing All the LEDs and digits flash for 30 sec Display of alarms 81 S3 LD1
41. ssible 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 V Correct operation of the suppressor Closure of the door switch contacts Continuity of the wiring between connectors A2 B1 on the circuit board and the suppressor SOI DT 2003 01 eb 28 599 35 63 72 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 LD1 LD2 LD3 1 Switch off the appliance 2 Press buttons 51 53 simultaneously and hold down 3 Press key SO to switch the appliance on still holding down buttons 51 53 until LEDs LD1 LD2 and LD3 begin to flash 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 102 and LD3 switch off LD1 continues to flash The first alarm stored in memory is displayed ixO for the codification see the summar
42. 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 63 72 6 14 3 Table of regeneration values Water introduced between regeneration cycles Aperture of Position of regeneration selector in solenoid the tub Hardness of the water litres sec m GH o e 0 1 058 054 2 L 190 240 1 9514 558 5 factory set level Position of selector in tub 2 7 Drying In these dishwashers the dishes are dried by means of a steam condensation process The drying system is based on the circulation 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 1 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
43. utton SO and switch the appliance off or wait 60 seconds the appliance is in selection mode SOI DT 2003 01 eb 11 999 35 63 72 4 7 Sequence of operations Close the door Press SO to switch the appliance on The pilot lamp LO lights Select the desired programme The display shows the time to end or the programme no flashing The phase LEDs light SELECTING THE CYCLE Within 3 seconds select the possible delayed start or the desired option if featured Automatically 3 seconds after the last pressure of a button the cycle starts The digits and the current phase LED light steady The time to end decreases every minute and is updated after every cycle phase The LED indicates the current phase 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 LLI O LLI L LL Z k 2 O LLI gt lt LLI At the end of the programme The buzzer sounds at intervals The END OF CYCLE LED lights The display shows 0 Press 50 to switch the appliance off SOI DT 2003 01 eb 12 999 35 63 72 5 STRUCTURAL CHARACTERISTICS 5 1 Structure The appliance as a whole may be considered as consisting of four
44. with the theoretical value 2 SMO OGOOGO WIth replaced in the incorrect position back to front the appliance will not function The board will Care should be taken relative to the position of connector A1 A2 if this connector is not accept any commands since the power supply will be disconnected PROBE LIST OF COMPONENTS CONTACTS CORRECT VALUES NOTES ee 2 2 2199 With ON OFF key ON OFF SWITCH pressed connected in series 2100W EMPTY 1 2 PR LEVEL PRESSURE SWITCH 1 C5 Fon FULL 1 3 PA ANTI FLOODING PRESSURE C1 lt A2 1 2 SWITCH FULL 1 3 IP DOOR MICROSWITCH B2 lt gt D1 00 Door closed DD DB INTEGRATED DISPENSER D5 07 1 500 Q 8 with Rinse aid SS SALT SENSOR without salt T at 25 C GT TACHYMETRIC SENSOR aoe te 2100 8 MV FAN MOTOR DiceD3 5 7500 87 ER REGENERATION SOLENOID Di C9 5 6 8 AND OM NC EGE D1 o C7 3 800 8 connected in series C118 500 8 start up winding wires blue red 4800 8 auxiliary winding PS DRAIN MOTOR C11 C1 3 1800 8 Note Measurement points L and N refer to the pins of the plug fitted to the power cable SOI DT 2003 01 36 599 35 63 72 12 QUICK GUIDE THE SPECIAL FUNCTIONS The table below briefly describes how each of the
45. y 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 All the positions can be repeated by pressing sequentially 51 Activation S1 Activated function H gt Reading of the last alarm occurred gt Reading of the last alarm but one occurred gt Reading of the last alarm but two occurred B REE 7177 7177 B gt Water filsoienoid to level 5 0 The components are powered when the door is closed open the door to select a different component then re close the door If button S1 is not pressed for 60 seconds the system automatically exits diagnostics mode o2 o8 qi 2 8 2008 10 A SOI DT 2003 01 eb 29 599 35 63 72 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 LD29 xipe 109 1011 1012 EENH 10 4 Functional testing cycle Access diagnostics mode see 10 1 Press button 52 to cancel the alarms All the LEDs and the digits 188 flash for about 30 seconds The function terminates automatically and the machine enters pre selection mode 04 1 5 107
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