AOS OVENS - Service Manual -
Contents
1. 24 APPENDIX E LAMBDA natn utri Ya manana manaa nunuzi 29 APPENDIX PARAMETER DESCRIPTIONS nn nn nnne nnn nnns 30 APPENDIX G GAS 6 33 APPENDIX WATER TREATMENT nine 39 APPENDIX CONNECTION HACCP nnne nnna 41 APPENDIX J RELAY DESCHIPTIONS 42 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 3 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 1 Programming the default parameters B Fig 1 Fig 2 Fig 3 Switch on the oven fig 1 Just after the switching on a lamp test will take place fig 2 At this point during the lamp test phase press the external service butt2. 1 or only cavity offset for lev ovens File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 18 43 Electrolux AOS 5 Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX A WATER BOILING POINT Height m Water boiling point C 0 100 00 300 98 90 500 98 30 800 97 50 1000 96 80 1500 95 00 2000 93 50 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional 19 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX CONTACTORS DIAGRAM Contactors used on 5061 AOS101E AOS102E _ 100 HOT AIR 100 HOT AIR File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 20 43 2 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX C CONNECTIONS ON MAIN BOARD Lote po F 04 HW Bott Ie te Rote 9 f tee E f En ft Fy 48 15 X16 T EF TE t Put a jumper to make a short in the not used connec
3. Electrolux AOS OVENS Service Manual 595889300 Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Big display Meaning of the number on the little display Prb3 Third meat probe temperature lev A Prb4 Fourth meat probe temperature lev A Prb5 Fifth meat probe temperature lev A Prb6 Sixth meat probe temperature lev A CEL1 First cavity temperature CEL2 Second cavity temperature boL1 First boiler probe boL2 Second boiler probe byP Bypass probe Prb Single point meat probe lev B HuM KS contactor is activated for 15 s and the lambda probe is fed and after a while the cavity humidity will be displayed If one of the probes is detecting the same temperature of the ntc probe PCB temperature the meanings are the following 1 Probe in short circuit 2 Probe not connected for example Prb on a lev A oven 3 Probe at the same temperature of the ntc probe f the led open door is switched on in parameter programming mode it means that the safety level probe of the boiler is detecting water e the led scale alarm is switched on in parameter programming mode it means that the working level probe of the boiler is detecting water 10 Selection of the language for the recipe menu lev A Starting from firmware release 2 30 on lev A ovens it is possible to select a language for the menu of the recipes To s
4. Pressing again these buttons the board temperature will be displayed 8 Working temperatures While the oven is working it is possible to see the temperature of the several probes pressing the service buttons See the following figures 17 Fig 16 Fig 17 Temperatura del boiler Temperatura del by pass Fig 18 Fig 19 Temperatura dello spillone Temperatura della scheda 9 Service utilities From firmware release 2 50 some useful utilities are present for troubleshooting and diagnostic of the oven These additional features be divided in 2 set utilities that can be activated with the oven switched utilities that can be activated with the oven in parameter programming 9 1 Utilities that can be activated with oven switched on With the oven switched on and not in a cooking phase pressing simultaneously the following buttons it is possible to activate the detergent rinser pumps and water valve of the cleaning system e Steam cycle combi cycle temperature buttons fig 20 activation of detergent pump e Steam cycle combi cycle time buttons fig 21 activation of rinser pump e Steam cycle combi cycle utility buttons fig 22 activation of water valve of the cleaning system File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 9 43 2 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training
5. 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service ON OFF button led is the only lit up led The exit from this stand by state takes place with an action from the user pressing of a button of the user interface or opening the oven door NB To check the correct water installation make sure the rotating wash arm does not turn below 100 rpm 120 rpm max 12 Cycles utilities important parameters Hot air cycle Only the cavity heating elements burners are working The maximum temperature is 300 C if the set point is over 250 C the maximum working time that can be set is given by parameter dutM If ona lev A oven a humidity value is set the lambda probe will control only the cavity flap Steam cycle The maximum set point temperature is 100 C 130 C from firmware 2 6 Boiler heating elements burners are controlled with the lambda probe lev A ovens or with the by pass probe lev B ovens for a set point of 100 C for set point lower than 100 C the boiler is controlled with the cavity probe Combi cycle Boiler and cavity heating elements burners are working Cavity heating elements burners are controlled with the cavity probe boiler heating elements burners are controlled by the lambda probe lev A ovens or by the by pass probe lev B ovens The maximum set point is 250 C From firmware 2 6 for a set point
6. AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 8 43 Electrolux AOS 5 Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training 8 Service EIND Error in reading the of the recipes EDES Error in reading the description of a recipe ERAM Communication error with the RAM nFIP Communication error of recipe display DOOR Open door from firmware 2 6 only the led on the control panel switches on FILL Safety level probe of the boiler out of water PrEH Preheating phase of the boiler from firmware 2 90 it indicates the preheating phase of the cavity if the warning message appears on temperature display OPEN boiler drain activated COOL Cavity cooling phase dEt low level of detergent rAl low level of rinser request for a cleaning cycle manual or automatic parameter FCLn is set to a value different from da 0 LOAD end of pre heating phase of the cavity if nothing is done the cavity is maintained at the pre heating set point Strt push START button 7 Firmware version In order to check the version of the firmware switch on the oven and wait for the lamp test and the end of the start up phase 4 lines on the temperature display When on the temperature display the actual cavity temperature appears pressing the three service buttons together on the display temperature the firmware version will appear
7. UPPER CAVITY BURNER Parameters GAS Injector hPa StcA hAcA FucA G20 7 00 Red 0 25 80 35 100 G25 8 00 Red 0 25 80 26 100 LPG2 G30 5 50 Red 0 07 0 00 23 26 100 LPG1 5 70 Red 0 15 0 08 23 26 100 LOWER CAVITY BURNER GAS Injector SEESET Parameters hPa StcA hAcA FucA G20 7 00 Red 0 25 80 35 100 G25 8 00 Red 0 25 80 26 100 LPG2 G30 5 50 Red 0 07 0 00 23 26 100 LPG1 5 70 Red 0 15 0 08 23 26 100 BOILER BURNER GAS Injector PEL Soe _ G20 8 00 Blue 0 42 45 100 G25 8 50 Blue 0 42 45 100 G30 6 15 Blue 0 15 30 37 72 LPG 6 15 Blue 0 30 37 72 LPG conversion for cavity burner for AOS201G For LPG installations put the 0 21 flow reducer flange between cavity burner fan and cavity burner Change the PWM parameters Then change the injector with the 5 70 one and calibrate the offset in the range 0 15 0 08 hPa so as to eliminate possible whistles noises row LPG1 After you have found the best working condition cool down and verify ignitions with cold burner If the previous setting does not eliminate whistles or noise change the 5 790 injector with the 5 50 one and use the calibrations of LPG2 G30 row calibrate the offset in the range 0 07 0 00 hPa so as 10 eliminate possible
8. lower than 100 C to obtain the required steam the humidifier is used not the boiler Regeneration cycle In this cycle boiler and cavity heating elements burners work alternatively during the first rising parameter it defines the boiler working time e parameter rlGc it defines the cavity working time till the set point is reached After the set point is reached boiler and cavity works in parallel to maintain temperature and humidity DELTA COOKING cycle This cooking cycle is used with the meat probe and hot air steam or combi cycle For this cycle it is set a Delta temperature let s call it D and not a cavity set point The cavity will be thermostatically controlled to have in any moment a cavity temperature that is D over the meat probe temperature COOL The cavity cooling mode takes place with the fan running and water injection from the temperature of 180 parameter trMA to the temperature of 40 parameter trMn Passing from a cooking cycle to a steam cycle an automatic cooling phase will take place if the cavity temperature is over 3 C parameter dSAc from the set point of the steam cycle Boiler automatic drain The automatic boiler drain takes place each 2 hours of working of the boiler heating elements burners parameter dbon and if the water temperature is lower than 50 9 parameter tcdb Then the boiler is automatically filled Board cooling The cooling fan is activated starting from the temperat
9. whistles noises row LPG1 After you have found the best working condition cool down and verify ignitions with cold burner File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 35 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service AOS102G CAVITY BURNER OFFSET Parameters hPa StcA hAcA G20 7 00 Red 0 17 0 10 45 43 100 GAS Injector Aerator G25 8 50 Red 0 17 0 10 45 43 100 G30 5 70 Red 0 25 0 18 60 43 100 LPG 5 70 Red 0 10 0 02 60 43 100 BOILER BURNER GAS Injector Aerator OFFSET parameters hPa Stbo hAbo Fubo G20 7 00 Red 0 43 50 100 G25 8 50 Red 0 43 50 100 G30 5 70 Red 0 15 35 45 78 LPG 5 70 Red 0 35 45 78 LPG conversion for cavity burner for AOS102G For LPG installations put the 25 flow reducer flange between cavity burner fan and cavity burner Change the PWM parameters Then change the injector with the 5 70 one and calibrate the offset in the range 0 10 0 02 hPa so as to eliminate possible whistles noise After you have found the best working condition cool down and verify ignitions with cold burner File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 36 43 4 Electrolux Electrolux Prof
10. 4 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service CONTENTS PROJECT REF AUTHORS CONTRIBUTION BY DOCUMENT HISTORY AOS OVENS Service Manual This document contains the information about parameters that can be read and or modified by means of user interface service utilities AOS ovens A Canova D Vadori F Fingolo F Ornella S Gant Rel Date File Author Note 005 06 04 2004 AOS service manual ENG 005 A Canova New features from firmware 2 7 2 1 gas ovens added appendix B C D 006 05 07 2004 AOS service manual ENG 006 A Canova New calibrations for AOS061G and AOS101G updated appendix C D added appendix E F G 007 18 02 2005 AOS service manual ENG 007 A Canova Updated appendix D calibration of AOSO061G and added appendix H I 008 13 06 2005 AOS service manual ENG 008 A Canova Updated calibrations for AOS101G AOS201G AOS102G AOS202G firmware 2 80 009 14 09 2006 AOS service manual ENG 009 A Canova Firmware 2 90 new value for hAcA for AOS201G G20 for Stbo for AOS101G G25 new procedure for param programming updated appendix D F added appendix J File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 1 43
11. 7 do17 RL 18 do18 RL 19 do19 RL 20 do20 RL 21 do21 RL 22 do22 RL 23 4023 RL 24 do24 FAN MOTOR POWER SUPPLY HALF FULL SPEED FAN MOTOR COOLING FAN S LAMBDA SWITCHING FEEDER N A CAVITY VENT VALVE CAVITY IGNITION DEVICE RESET BOILER IGNITION DEVICE RESET CAVITY IGNITION DEVICE POWER SUPPLY BOILER IGNITION DEVICE POWER SUPPLY CAVITY UMIDIFIER SOLENOID VALVE STEAM CONDENSER SOLENOID VALVE CAVITY LAMPS BOILER SLOW WATER FILLING BOILER FAST WATER FILLING BOILER AUTOMATIC DRAIN VALVE N A N A N A N A DETERGENT PUMP RINSE PUMP WATER SOLENOID VALVE CLEANING SYSTEM N A File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 43 43
12. CHED 9 9 2 UTILITIES THAT CAN BE ACTIVATED IN PARAMETER PROGRAMMING seen nnn nnne 10 10 SELECTION OF THE LANGUAGE FOR THE RECIPE MENU LEV A NARAR RARAARAN 11 11 CYCLE LEV A OVENS NASA WA NASA 11 12 CYCLES UTILITIES IMPORTANT 12 13 GAS SYSTEM 13 TIA NGASA C era eee 14 13 2 OFFSET PRESSURE CALIBRATION 16 13 3 USE OF MANOMETER FOR OFFSET PRESSURE MEASURE 16 14 CHANGE OF THE MICROPROCESSOR 18 APPENDIX A WATER 19 APPENDIX B CONTACTORS 20 APPENDIX C CONNECTIONS ON MAIN 21 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 2 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX D
13. Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service INDEX 1 PROGRAMMING THE DEFAULT 4 2 ADVANCED 5 3 55 CALIBRATION ONLY FOR LEV B OVENS 6 4 LAMBDA PROBE CALIBRATION ONLY FOR LEV OVENS 7 5 OFFSET CALIBRATION ONLY FOR LEV A OVENS 8 6 ERROR CODES So CER DE SRM 8 6 1 5 AUA YA 8 6 2 WARNINGS D oua VE LN 8 7 FIRMWARE VERSION 5 9 8 WORKING TEMPERATURES waa awana wanawa anaua nanunua aana RR DANN E ARR R DAR RR DAR RR DANN R DARAN wanawa 9 9 SERVICE UTILITIES E 9 9 1 UTILITIES THAT BE ACTIVATED WITH OVEN SWIT
14. Prm Print frequency O no print trMA Define the max temperature for water injection during cooling phase trMn Define the min temperature for water injection during cooling phase File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional 32 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX GAS CALIBRATIONS AOSO061G CAVITY BURNER OFFSET Parameters hPa StcAhAcAFucA G20 6 50 Yellow 0 20 35 30 60 GAS Injector Aerator G25 7 80 Yellow 0 20 35 30 60 G30 5 30 Yellow 0 25 40 28 43 LPG 5 30 Yellow 0 13 40 28 43 BOILER BURNER Parameters hPa Stbo hAbo Fubo G20 6 50 Yellow 0 20 55 35 78 GAS Injector Aerator G25 7 80 Yellow 0 20 55 35 78 G30 5 30 Yellow 0 28 55 36 66 LPG 5 30 Yellow 0 18 55 36 66 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 33 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service AOS101G OFFSET Parameters hPa _ StcAlhAcA FucA G20 7 00 Red 0 25 80 26 100 GAS InjectorAe
15. STEAM GENERATOR OVENS 1000 2000 3000 4000 5000 6000 7000 8000 9000 PH conductivity uSiemens cm 99195 9 yoddns jeuoissejoug 3 002688969 enuen SN3AO SOV xn 4 Electrolux Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service AOS OVENS Service Manual 595889300 ENG Summary table Graph Not required Not required Nanofilter Nanofilter Osmotizer Osmotizer Hardness lt 5 gt 5 F lt 5 gt 5 F lt 5 gt 5 Treatment Not required Softener Nanofilter Nanofilter Osmotizer Osmotizer File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 40 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX I CONNECTION HACCP SYSTEM The AOS oven from firmware 2 7 can be predisposed for the HACCP system through 4 parameters defines the type of HACCP i e 0 no system 1 HACCP Basic with printer 881457 880048 for US market i e 120V 1 ph 60 Hz 2 HACCP Advanced or Integrated bAud bit rate of RS485 connection Addr addres
16. Support Technical Training amp Service LPG conversion for cavity burners for AOS202G For LPG installations put the 25 flow reducer flange between cavity burner fan and cavity burner Change the PWM parameters Then change the injector with the 5 70 one and calibrate the offset in the range 0 10 0 05 hPa upper cavity boiler and 0 15 0 10 hPa lower cavity boiler so as to eliminate possible whistles noise After you have found the best working condition cool down and verify ignitions with cold burner LPG conversion for boiler burners for AOS202G Change the PWM parameter Then change the injector with the 6 00 one and calibrate the offset in the range 0 07 0 02 hPa upper and lower boiler burner so as to eliminate possible whistles noise row LPG1 After you have found the best working condition cool down and verify ignitions with cold burner If the previous setting does not eliminate whistles or noise change the 6 00 injector with the 5 80 one and use the calibration of LPG2 G30 row calibrate the offset in the range 0 07 0 02 hPa upper and lower boiler burner so as to eliminate possible whistles noise After you have found the best working condition cool down and verify ignitions with cold burner File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 38 43 001559 0 Aq 2002 1uBuAdoog 600 soles SOY 4 10000
17. T Flag to enable special programs i e preheating programs and Low temperature O disable 1 enable pdEr Sample period to calculate the derivative value FUZZY LOGIC PFAC Flag to enable factory preset recipes 0 disable 1 enable PI Parameter p of SCELON SCEL 1 p 400 i FUZZY LOGIC PPM Flag to enable Peak Power Management 0 disable 1 enable PrEH Flag to enable cavity preheating during cooking O disable 1 enable Sbc Cooling temperature set for board ventilation SbYP Bypass temperature with max cooking cavity steam temperature calibration SEAL Altitude above sea level SInC Boiler temperature that detect presence of scale SPHb Preheating temperature of the boiler File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 31 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Name Description SPHF Boiler temperature during leavening Stbo PWM value at start of boiler burners SibP Steam condenser engagement in boiler mode StcA PWM value at start of cavity burners StoF Minimum time for switch off of boiler Ston Minimum time for switch on of boiler tbon Timeout for E SL alarm water level probe alarm water temperature for boiler drain tCMS Limit of cavity temperature set for working at high temperature thMA Define the max temperature limit for the manual injection of water t
18. air mixture not correct The boiler burner is whistling or grumbling Gas air mixture not correct The main board is switching off on by itself Coupling of high voltage and low voltage circuits Copyright 2002 by Electrolux Professional File AOS service manual ENG 009 Checks causes 1 Check PWM parameters for the cavity burner 2 Check offset pressure 3 Check injector 4 Check aerator 5 With LPG on 10 20 grid ovens 1 1 or 2 1 check the presence of the flange after the burner fan 6 Set to 0 the parameter Sbc in order to have the cooling fan always working supplying with air the burners 1 Check PWM parameters for the boiler burner 2 Check offset pressure 3 Check injector 4 Check aerator 5 Set to 0 the parameter Sbc in order to have the cooling fan always working supplying with air the burners 6 Check integrity of the gasket of the boiler burner 1 Check the separation between high voltage and low voltage cables 2 Check integrity of ignition cables they must not be cracked discharging towards inner components of the oven 3 Reinforce the insulation of the ignition cables with a silicon pipe P 26 43 4 Electrolux Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service AOS OVENS Service Manual 595889300 ENG Oven Problem Analysis 0 Probable anomal Gas tap is closed Open gas tap Not correct in
19. amp Service These routines are achievable only on lev A ovens i e with the parameter dCLn set to 0 closed door and cavity temperature less than 80 C and from firmware release 2 90 with the oven not blocked with password 91 gge Fig 20 Fig 21 Fig 22 9 2 Utilities that be activated in parameter programming e Pressing the steam cycle and hot air cycle buttons all the output relays are sequentially activated and on the time display it will be displayed the activated relay with the message 402 dox RLx the EWD From firmware release 2 7 this utility is changed as follows o steam cycle button acts as main switch if it is released the test stops Each time the hot air cycle button is pressed the next relay is activated and remains activated till the next pressure of the hot air cycle button o Ifthe hot air cycle button is kept pressed the relays are sequentially activated e Pressing the time buttons the time will be displayed e Pressing the utility button on the time display a 4 characters message will be displayed while on the little display will be shown a number with the following meanings Big display Meaning of the number on the little display ntc PCB temperature Prb1 First meat probe temperature lev A Prb2 Second meat probe temperature lev A File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 10 43
20. are 2 80 Parameter AbSP Setting this parameter to 1 the selected cooking cycle starts closing the door without pressing the START STOP button from firmware 2 80 Parameter dSPS Setting this parameter to 1 the pre heating of the boiler is disabled when the oven is not in cooking mode so the pre heating will start at the beginning of a combi or steam mode or of a recipe that provided the use of those modes in one of its steps from firmware 2 80 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 12 43 2 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 13 Gas system gas system is made with low emission burners The main components SIT gas valve type SIGMA 848 DC burner fan that is intaking air through a calibrated mixer where the air gas mixture is created then the fun conveys the mixture to the burner Acavity and a boiler heat exchanger made with a corrugated tube for increasing the efficiency Anignition rod and a detection rod ignition device Starting with a cooking cycle the POW board of the oven activates the ignition device which activates the burner fan whose speed is controlled with a PWM signal The POW board activates the ignition device From pin 8 of the ignition device a high voltage output is carried to the dig
21. ce activates the fans that start at the speed determined with parameters Stxx The spark starts for 4 5 and after these 4 5 there are 2 5 for flame detection If the flame is detected the start speed is maintained for around 6 5 and after this time the fans are carried to their working speed half or full power e lf the flame is not detected the fan keep on running for an interpurge phase of 15 s after this phase there is a stop of the fan for 1 s and the ignition sequence is repeated If the flame is still not detected there will be again 15 s of interpurge phase and then the last ignition attempts before the reset signal In case of loosening of the flame signal during working only one re ignition attempts takes place In case of conversion to different type of gas besides the injector diaphragm also the parameters which control the PWM signal have to be changed according to appendix G and the offset pressure has to be set NB On 10 1 1 and 20 1 1 ovens changing from natural gas to LPG or G30 a flow reducer flange fig 24 enclosed in the oven with hole of diameter 21 mm must be put between the cavity burner fan and the cavity burner on 10 2 1 and 20 2 1 ovens changing from natural gas to LPG or G30 a flow reducer flange fig 25 enclosed in the oven with hole of diameter 25 mm must be put between the cavity burner fan and the cavity burner 13 1 Gas valve File AOS service manual ENG 009 Copyright 2002 by Electrolux Professi
22. dSPS dtoF Dton dtSb dutM E2PP EcLn EMME EnFL Ertc FAHr FCLn File AOS service manual ENG 009 APPENDIX PARAMETER DESCRIPTIONS Description Frequency Presence of 6 point meat probe 1 5 for lev A 0 for lev B Flag to enable starting of cooking closing the door 0 disable 1 enable RS485 address Flag to enable detergent rinser level probes 0 disable 1 enable when the relevant sensors are installed Activation of cavity motor thermal protection Level of the oven Type of oven 85485 bit rate Max steam generator overheating ETUB alarm First character of the password Second character of the password Third character of the password Fourth character of the password Fifth character of the password Sixth character of the password Seventh character of the password Eighth character of the password Length of cooling with humidifier after a steam phase in an automatic cleaning cycle Length of detergent injection phase A Length of detergent water injection phase Length of rinser water injection phase C Length of water injection phase C Flag to enable cavity temperature displaying adjustment Max cooking chamber overheating ETUC alarm Parameter q of SCELOFF SCEL q m dT dt FUZZY LOGIC Delay for boiler drain Flag to disable automatic cleaning cycles 1 disable Flag to enable DEMO 0 disable 1 enable Temperature range from set above which the middle power is activated in combi mode Flag to di
23. e X16 Connection of boiler probe X17 Connection of single point meat probe X18 Connection of second cavity probe X19 Connection of second boiler probe X20 X21 X22 Connections of multi point probe X23 Connection of lambda probe X25 26 Connections of water level probes X28 RS485 connection File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional 23 43 AOS OVENS Service Manual 595889300 ENG 4 Electrolux Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX D TROUBLESHOOTING Oven Problem Analysis Probable anomaly Checks causes 1 Check if the lambda probe is fed 9 5 Vdc from the relevant switching feeder 2 If 9 5 Vdc are not present check if the switching feeder is supplied with 230 Vac from the main board 3 Check the fuse on the switching feeder 4 Check the connection of the probe on the main board 5 Check the connections on the lambda probe 6 Change the lambda probe 7 If the humidity bar is switched off check if parameter LAMb is set to 1 Humidity bar always AOS of red or blue colour or switched off In the recipe menu the cleaning programs are not present Check and set parameter to 0 Parameter 4 set to 1 Check the correct connection of the power The user interface board does not switch on The oven does not switch on and the ON OFF led is off The ove
24. elect the language set parameter LanG to the correct value for the desired language see the relevant parameter list 11 Cleaning cycle lev A ovens Each cleaning cycle can be divided into the repeating of 3 fundamental phases Phase A Washing phase controlled through the parameters CLt1 time of detergent injection and CLt2 time of detergent 4 water injection Phase B like Phase A but with the final sub phase with 20 seconds of water Washing phase controlled through the parameters CLt1 time of detergent injection and CLt2 time of detergent 4 water injection Phase C Rinsing and drying phase controlled through the parameters CLt3 time of rinse aid injection and CLt4 time of water injection The cleaning cycles are composed according the following table Cycle Name of the program Composition of the phases SOFT CYCLE CLEAN 1 SOFT A C MEDIUM CYCLE CLEAN 2 MEDIUM 2 STRONG CYCLE CLEAN 3 STRONG 2A 2B C EXTRA STRONG CYCLE CLEAN 4 X STRONG 2A 4B C At the end of a cleaning cycle at the end of the acoustic signal the oven enter a stand by state from firmware 2 40 i e the boiler heating elements are not fed the user interface shows only the time and the At the beginning of each phase the cavity is brought at a certain temperature with a COOLING phase without water or with an hot air cycle File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 11
25. ement burnt Contactors not working Heating element burnt Contactors not working PWM signal not present The fan is not powered 24 Vdc PWM signal at 0 Copyright 2002 by Electrolux Professional Checks causes Check fuse Change EEPROM or main board Check that all the branches of the boiler heating elements are working Check correct working of the contactors see appendix B Check that all the branches of the cavity heating elements are working Check correct working of the contactors see appendix B 1 The connector of PWM signal X9 on the main board is not connected 2 PWM signal cable is interrupted 1 Check if the fan is powered 24 Vdc from the relevant switching feeder 2 Check fuse on the relevant switching feeder if 24 Vdc are not present 1 Exchange the PWM cable between cavity and boiler fan to check if the fan starts 2 Check if high voltage digital signal is present on 10 11 5 8 3 Close the gas tap disconnect connector 9 and try to start the burner the fan has to run at the maximum speed If this is not happening change fan If the fan starts change main board P 25 43 4 Electrolux Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 595889300 ENG AOS OVENS Service Manual Oven Problem Analysis Probable anomaly The cavity burner is whistling or grumbling Gas
26. en X25 26 2 and X25 26 3 the slow filling valve has to close If this is not happening change main board but before check also next point Oven is always loading water water Water level system on in the cavity main board not working overflowing from the boiler Bad ground connection of some devices inside the oven mainly the Check the ground switching feeder TR Fx connections or TR HC are not connected to ground Noise on ground circuit File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 28 43 A Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX LAMBDA PROBE In the lev A AOS ovens the lambda probe is used to measure the humidity How does it work The lambda probe permits measurement of oxygen concentration through a solid electrolyte ceramic element The ceramic part of the probe is in the form of a tube closed at one end The inside and outside surfaces of the ceramic sensor have a microporous platinum layer electrode The platinum layer which is in contact with the analyzed gas is covered with a highly porous protective ceramic layer The ceramic sensor 7 solid electrolyte is heated from inside by means of a ceramic heater so that the temperature of the sensor ceramic remains above 350 Starting from 300 C the 270 sensor becomes conduct
27. essional S p A Ovens Platform Customer Support Technical Training amp Service AOS OVENS Service Manual 595889300 ENG AOS202G UPPER CAVITY BURNER GAS Injector Aerator Parameters hPa StcA G20 7 00 Red 0 20 45 43 100 G25 8 00 Red 0 20 45 43 100 G30 5 70 Red 0 20 0 15 40 43 95 5 70 Red 0 10 0 05 40 43 95 LOWER CAVITY BURNER GAS Injector Aerator Parameters hPa StcA hAcA FucA G20 7 00 Red 0 20 45 43 100 G25 8 00 Red 0 20 45 43 100 G30 5 70 Red 0 25 0 20 40 43 95 LPG 5 70 Red 0 15 0 10 40 43 95 UPPER BOILER BURNER GAS Injector Aerator pis Stbo hAbo G20 7 50 Red 0 05 0 00 40 50 100 G25 8 50 Red 0 05 0 00 40 50 100 LPG2 G30 5 80 Red 0 07 0 02 40 45 90 LPG1 6 00 Red 0 07 0 02 40 45 90 LOWER BOILER BURNER GAS Injector Aerator pis EL eau hPa Stbo hAbo G20 7 50 Red 0 05 0 00 40 50 100 G25 8 50 Red 0 05 0 00 40 50 100 LPG2 G30 5 80 Red 0 07 0 02 40 45 90 LPG1 6 00 Red 0 07 0 02 40 45 90 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 37 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer
28. ital input section of the POW board X10 5 8 and to the switching feeder for the burner fans With an high voltage input 10 5 8 the POW board generates on 9 2 5 a PWM signal to control the speed of the burner fans i e controlling the quantity of sucked gas and air The PWM signal changes according to the status of the burner i e Start of the burner controlled with parameters StcA start of cavity burners and Stbo start of boiler burners Full power of the burner controlled with parameters FucA full power of cavity burners and Fubo full power of boiler burners power of the burner controlled with parameters hAcA half power of cavity burners and hAbo half power of boiler burners The quantity of sucked gas is controlled with those parameters which are determining the speed of the burner fans with the injector diaphragm inserted at the outlet of the gas valve and with the calibration of the offset value on the gas valve The quantity of sucked air is controlled with the above parameters and with the calibrated aerator on the mixer The ignition sequence is then the following File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 13 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service The POW boards activates the ignition device After 1 5 s the ignition devi
29. ive for the oxygen ions so that if there is a different concentration of oxygen at the two sides of the sensors one side is in contact with the analyzed gas the other side is in contact with the external a voltage is generated Since the Oxygen Nitrogen ratio in the air is constant a measurement of the concentration of oxygen enables the percentage of a third gas in this case water vapor to be determined In fact the addition of a third gas to a sample of air has the effect of reducing in a proportional manner the presence of oxygen and nitrogen so that as said determining the relative concentration of oxygen allows the amount of the third introduced gas of the mixture to be determined see the diagram 100 90 80 70 60 50 40 30 0 10 20 30 40 50 60 70 80 90 100 water percentage Connections on the lambda probe Pin 1 not used Pin 2 3 connections to the main board connector X23 Pin 4 5 connections to the switching feeder File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 29 43 4 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Name 5060 6Prb AbSP Addr ALIE ALFn APPL APPM bAud bot chri chr2 chr3 chr4 chr5 chr7 chr8 CLPr CLt1 CLt2 CLt3 CLt4 Cort Cot Cu Dbon dCLn dEMO dScb dSod
30. jector Check injector AOS Burner does not gas light Burner fan is working burn error after the 3 ignition attempts Too low setting for the offset pressure Gas valve is not opening the offset pressure during ignition is very high around 1 00 hPa No continuity on the bridge between terminals 5 6 7 of the ignition device Burner fan is working no ignition attempts Burner fan not powered 24 Burner fan is not working burn xxxx error after the 3 ignition attempts PWM signal at 0 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional Checks causes Not correct aerator Check aerator Not correct values in the PWM parameters Check PWM parameters Check offset calibration 1 Check the ignition device is well fixed and connected to the gas valve 2 Faulty gas valve Restore continuity 1 Check that the relevant switching feeder TR Fx is powered through fuse F2 2 Check fuse on TR Fx 3 Check that 24 Vdc are present at the output of TR Fx J1 1 e J1 2 J1 3 e J1 4 and at the input on the fan with connector X9 disconnected and 24 Vdc present at the input on the burner fan this has to run at the maximum speed see also the following point 1 4 Check correct connections between TR Fx and the burner fan 1 Close the gas tap disconnect connector X9 and try to start the burner the fan has to run at the maximum speed If thi
31. m the storing with a long beep File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 6 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 10 Allow the oven to work for several minutes in steam mode checking the oven cavity temperature which should stabilize at the water boiling point If this reading is greater or less than the correct water boiling point a corrective value can be stored in the parameter OCA1 From firmware release 2 90 pushing the 3 service buttons to store the bypass temperature the microprocessor will calculate and store also the value of 11 Set parameter cort 10 1 12 Set the altitude above sea level of the site on parameter SEAL AA Fig 15 Fig 14 4 Lambda probe calibration only for lev A ovens The calibration of the lambda probe is necessary from firmware 2 6 for the right working of the oven in case of cycle with set point under 100 With this procedure we have to find the point of 0 of humidity The procedure is done in a way similar to the by pass calibration These are the steps 1 Setan hot air cycle 150 time over 15 minutes open flap 2 Start the cycle pressing together the left and middle service buttons and the START button The oven will give a long beep Wait around 10 15 minutes to dry completely the cavity Close
32. n does not switch on and the ON OFF led is on Switching off and switching the oven on again after few minutes the oven starts again Main board not powered Overtemperature of the main board supply cables of the user interface board on the main board 2 Check he connection of the flat cable on the main board 1 Check if voltage is present 24 Vac at the main board input X1 connector 2 Check voltage output 24 Vac on the transformer 3 Check F1 fuse 1 Check the working of the cooling fan 2 Check the openings on the bottom of the control panel are not clogged Change main board Defective electronic y component on the main had a negative result board File 5 service manual 009 Copyright 2002 by Electrolux Professional 24 43 4 Electrolux Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 595889300 ENG AOS OVENS Service Manual AOS The fan of a burner gas The user interface board does switch on but no load is activated In the recipe menu only signs like P Sxx appearing Heating of the boiler is slow Heating of the cavity is slow The fan of a burner is working always at the maximum speed does not start File AOS service manual ENG 009 Probable anomaly Fuse F2 burnt EEPROM of the main board is not programmed Heating el
33. onal P 14 43 lt Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Injector Remove this threaded cap to get access to the offset adjustment screw Offset pressure test point Inlet pressure test point File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 15 43 lt Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Offset adjustment screw Offset pressure test point Fig 23 Injector Fig 24 LPG flange 1 1 Fig 25 LPG flange 2 1 13 2 Offset pressure calibration For the adjustment of the offset pressure connect a manometer with a resolution of 1 Pa 100 1 mbar to the offset pressure test point after loosening the sealing screw To adjust the cavity gas valve offset set an hot air cycle half power to adjust the boiler gas valve offset select a steam cycle half power Wait around 3 minutes for the stabilization of the pressure before adjusting it turning slowly the screw indicated in the picture above 13 3 Use of manometer for offset pressure measure File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 16 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional 5 Ovens Platf
34. ons fig 3 till you hear beep Zee CHQQ 774468777649 Fig 4 Fig 5 Fig 6 At this point press the right buttons till you hear a fig 4 Press then the left service buttons till the beep fig 5 At this point release the left buttons keeping pressed the middle one fig 6 till you hear 2 beeps Release the middle button and on the temperature display you will see PdEF the oven will switch off and on automatically File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 4 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 2 Advanced programming B Fig 7 Fig 8 Fig 9 procedure to enter advanced programming is similar to the procedure for programming the defaults parameters Switch on the oven fig 7 Just after the switching on a lamp test will take place fig 8 At this point during the lamp test press the external service buttons fig 9 till you hear a beep 98877 Fig 10 Fig 11 At this point press the right buttons till you hear a fig 10 Press then the left service buttons till the beep fig 11 Release the button and on the temperature display you will see P 1 while on the little display the name of the parameter will appear fig 12 With the external service buttons it is po
35. ore parameters which have values not permitting the minimum operational requirements an error code will appear on the display i e E followed by the parameter number Enter the programming mode and set the correct value according to the parameter list EtUC Cavity over temperature cavity temperature exceeded value stored in parameter cot EtUB Boiler over temperature boiler temperature exceeded value stored in parameter bot EFUN Activation of the thermal protection of the motor On the little temperature display it will appear UP or DOWN according it is the thermal protection of the upper motor and the motor of 6 10 grid ovens or lower motor on 20 grid oven The thermal protection has an automatic reset but in order to continue with the cooking process parameter ALFn has to be reset to 0 Etc Tripping out of cavity limiter Etb Tripping out of boiler limiter ESCH or ETBR Over temperature on the electronic board check the cooling fan and the ventilation openings on the bottom of the control panel cavity probe in open circuit only the steam cycle 100 can be selected Ept2 boiler probe in open circuit only hot air cycle can be selected Ept3 meat probe in open circuit only time cooking can be selected Ept4 by pass probe in open circuit only hot air regeneration or low temperature steam cycle can be selected Ept8 NTC probe in short or open circuit ECAD A D converters not working E PM Communica
36. orm Customer Support Technical Training amp Service Fig 26 Manometer 050388 Using the pressure inlet signed with and with negative reading on the display as in the fig 27 28 this means we are measuring 0 16 hPa 16 Pa Fig 27 Fig 28 Using the pressure inlet signed with and with positive reading on the display as in the fig 29 30 this means we are measuring 0 16 hPa 16 Pa Fig 29 File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 17 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Using the pressure inlet signed with and with negative reading on the display as in the fig 31 32 this means we are measuring 0 16 hPa 16 E Fig 31 Fig 32 Using the pressure inlet signed with with positive reading the display as the fig 33 34 this means we measuring 0 16 16 4 2 Fig 33 Fig 34 14 of the microprocessor board In case of changing of the microprocessor board the following operations calibrations have to be done 1 Default parameter programming 2 Change parameters according parameter list 3 Lambda probe calibration for lev ovens from firmware 2 6 4 By pass calibration lev ovens and cavity offset parameter
37. rator G25 8 00 Red 0 25 80 26 100 LPG2 G30 5 50 Red 0 07 0 00 23 26 100 LPG1 5 70 Red 0 15 0 08 23 26 100 BOILER BURNER GAS InjectorAerator jo LET G20 7 00 Red 0 10 50 50 100 G25 8 00 Red 0 10 50 50 100 G30 5 70 Red 0 28 33 45 74 LPG 5 70 Red 0 15 33 45 74 LPG conversion for cavity burner for AOS101G For LPG installations put the 0 21 flow reducer flange between cavity burner fan and cavity burner Change the PWM parameters Then change the injector with the 5 70 one and calibrate the offset in the range 0 15 0 08 hPa so as to eliminate possible whistles noises row LPG1 After you have found the best working condition cool down and verify ignitions with cold burner If the previous setting does not eliminate whistles or noise change the 5 70 injector with the 5 50 one and use the calibrations of LPG2 G30 row calibrate the offset in the range 0 07 0 00 hPa so as to eliminate possible whistles noises row LPG1 After you have found the best working condition cool down and verify ignitions with cold burner File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 34 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service AOS201G
38. s is not happening change burner fan 2 If with X9 disconnected the fan starts check connections on X9 and if they are correct change main board P 27 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Oven Problem Analysis 0 Probableanomaly 1 Check limiter Ignition device not connections powered 2 Check the relevant Burner fan is not relay on the main board working burn xxxx 1 Ignition device is not error appears with no giving the 230 Vac ignition attempts after signal from terminal 8 reset change ignition device 2 Check connection from ignition device to TR_Fx and to X10 11 JI Inversion of Check cables on main Neutral terminal board and boiler The burners switch Change the ignition on only for few device with one working seconds and then The problem occurs device to check if the they switch off only on a cavity burner Detection problem problem persists boiler burner Check detection rod and integrity of relevant cable Lack of 230 Vac signal 10 11 Water level probes Check water level covered with scale other probes Broken probe cable Check continuity of the cable Make a short between X25 26 1 and X25 26 3 Water level probe are the fast filling valve has not detecting water to close make a short betwe
39. s of the appliance in the HACCP Advanced network tPrn print frequency in case of HACCP Basic value in seconds In case of HACCP Basic i e setting HCCP to 1 to use the printer 881457 or 880048 and print with the printing frequency given through parameter tPrn set on the printer the following parameters PROTOCOL 8 1 BAUD RATE 9600 PRINT REVERSE 40 COLUMNS font 9x24 RS485 INTERFACE NO id In case of HACCP Advanced or Integrated i e setting HCCP to 2 the address of the oven in the AHCCP network has to be set in the parameter Addr File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 41 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service APPENDIX J RELAY DESCRIPTIONS AOS ELECTRIC OVENS RL 9 do9 K1 K5 CONTACTOR S FOR CAVITY RL 10 0010 K3 K7 CONTACTOR S FOR BOILER RL 11 do11 CAVITY UMIDIFIER SOLENOID VALVE File 5 service manual 009 Copyright 2002 by Electrolux Professional P 42 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service AOS GAS OVENS RL 1 do1 RL 2 do2 RL 3 do3 RL 4 do4 RL 5 do5 RL 6 do6 RL 7 do7 RL 8 8 RL 9 do9 RL 10 do10 RL 11 do11 RL 12 do12 RL 13 do13 RL 14 do14 RL 15 do15 RL 16 do16 RL 1
40. sable the oven stops when door is open in convection steam and combi mode 0 oven stops Flag to disable pre heating of the boiler when the oven is in stand by mode 0 enable pre heating 1 disable Max cooking chamber temperature derivative value for heating elements to be switched OFF FUZZY LOGIC Max cooking chamber temperature derivative value for heating elements to be switched ON FUZZY LOGIC Delay for activation of fast filling during opening of boiler drain valve Maximum length of a phase with cavity temperature over 250 C Flag to enable storing erasing of recipes on EEPROM 0 enable 1 disable Temperature for starting time computation of phase 1 during semi automatic cleaning Parameter m of SCELOFF SCEL q m dT dt FUZZY LOGIC Presence of motorised cavity 1 yes Flag to enable RTC 1 enable Temperature unit F 1 C 0 Minimum time to force a cleaning cycle 0 cleaning cycle Copyright 2002 by Electrolux Professional P 30 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Name Description FrE PWM frequency Fubo PWM value at full power of boiler burners FucA PWM value at full power of cavity burners GAS Define if the oven is GAS heated 1 or ELECTRIC heated 0 hAbo PWM value at middle power of boiler burners HAbP Steam condenser engagement in hot air mode hAcA PWM val
41. ssible to scroll the list of the parameters File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 5 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Pressing the middle button it is possible to see the value of the parameter fig 13 and pressing at this point the external buttons it is possible to modify the value Press again the middle button returning to the displaying of the number of the parameter to store the new value Switch off the oven to exit from programming Fig 12 Fig 13 3 By pass calibration only for lev B ovens In order to calibrate the by pass probe on lev B oven follow these steps 1 wa Switch the oven Enter in parameter programming and set parameters cort OCA to 0 Exit from programming and switch on again the oven Wait for the end of the pre heating cycle Select a steam cycle 100 C Select continuous time indication cont on time display Press and hold down the left service buttons and at the same time press the START button fig 14 the oven will give a long beep Release the service buttons and wait for the stabilization of the temperature reading by the by pass probe When the temperature has stabilized press the three service button together in order to memorize the value fig 15 the oven will confir
42. the flap and wait around 20 seconds to stabilize the humidity inside the cavity To store the value press together the 3 service buttons The oven will confirm with a long beep Stop the cycle with the START button This calibration is very important and has to be done with care If the dry point 096 of humidity is not correctly stored the reading of the relative humidity could be overestimated or underestimated 1 See Appendix File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 7 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service 5 Offset calibration only for lev A ovens In order to adjust the offset of the cavity probe enter in parameter programming and set parameters cort and to 0 Then run a steam cycle for several minutes and check the cavity temperature which should stabilize at the water boiling point If the stabilized cavity temperature is less or greater than the correct water boiling point a corrective value can be stored in parameter OCA1 After this set parameter cort to 1and set parameter SEAL altitude above sea level 6 Error codes Errors can be divided into 2 categories errors they stop the appliance and warnings they do not stop the appliance 6 1 Errors EE2P Communication error with the EEPROM E If the controller detects one or m
43. tion error with PWM system E SL Water level probe error If the boiler heating elements or burners are on for a tiem over that one defined in parameter tbon without a water charging phase this error message is activated To reset it parameter ALFn has to be reset to 0 burn CAUP Reset of cavity burner gas oven the upper one in the 20 grid ovens burn CAdo Reset of lower cavity burner gas oven in 20 1 1 and 2 1 ovens burn boUP Reset of boiler burner gas oven the upper one in 20 2 1 ovens burn bodo Reset of lower boiler burner gas oven 6 2 Warnings 20 Before the starting of the cleaning system and during its working there are some check points of the water pressure If the water pressure is too low this warning message appear on the display Check the water pressure 1 5 2 5 bar check the correct working of the water pressure switch check if there obstructions on the cleaning water inlet pipe its inner diameter must be 20 mm From firmware release 2 50 EH20 is a warning message and no more an error causing the stopping of the cleaning cycle EFLP Cavity ventilation flap failure check the motoreducer or the micro switch that detects the close position of the flap If the motoreducer does not close the flap within the time set in parameter FLto EFLP error appears ECLO Clock error it appears if the clock was never adjusted EPrG Error in reading the phases of a multiphase recipe See Appendix A File
44. tions File AOS service manual ENG 009 Copyright 2002 by Electrolux Professional P 21 43 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service File 5 service manual 009 Copyright 2002 by Electrolux Professional 22 43 4 Electrolux AOS OVENS Service Manual 595889300 ENG Electrolux Professional S p A Ovens Platform Customer Support Technical Training amp Service Connector Description x1 Main board supply 24 Vac X2 3 Power supply to cavity fan motors cooling fans cavity flap motor switching feeder for the lambda probe X4 5 Power supply to coils of cavity boiler heating element contactors or cavity boiler burner gas valves steam condensing valve humidifier valve cavity lamps X6 7 Power supply to boiler water filling valves boiler drain valve X8 Power supply to cleaning system 9 Output of PWM signal for burner fans X10 11 High voltage digital input i e thermal protection of the cavity fan motors and command signal of the burner fans from the ignition devices 12 13 Low voltage digital input i e cleaning system water pressure switch cavity limiter boiler limiter door micro switch and micro switch of the cavity flap X14 Connection of bypass probe X15 Connection of cavity prob
45. ue at middle power of cavity burners HAFd Bypass temperature variation for humidification during hot air mode open flap HAFI By pass isteresys in hot air open flap mode HAFS Bypass base temperature for humidification during hot air mode open flap hAir Hot air hour counter hboL Boiler hour counter HbYP Max humidity value to stop the boiler HCCP HACCP Mode hcMb Combi hour counter Hdut Flag to enable heater duty cycle O disable 1 enable hStM Steam hour counter HUIM Pulse length of manual humidifier HUon ON phase of the humidifier with combi cycle beetween 50 and 100 degrees Parameter of SCELON SCEL 1 p 400 i FUZZY LOGIC ISG Define if the oven is an ISG oven 0 means oven with boiler LAMb Presence of lambda probe 1 yes LAnG Language for the menu Man Flag to enable manual cookings O disable 1 enable MHUM Flag manual humidifier 0 1 On MISG Max temperature allowed for water injection in ISG nMod Define if the modification of store program is disable nPrG Max number of programs 1 OFFSET of first cavity probe OCA2 OFFSET of second cavity probe OLbd Calibration of the lambda probe OPr1 OFFSET of first probe of 6 point meat probe OPr2 OFFSET of second probe of 6 point meat probe OPr3 OFFSET of third probe of 6 point meat probe OPr4 OFFSET of fourth probe of 6 point meat probe OPr5 OFFSET of fifth probe of 6 point meat probe OPr6 OFFSET of sixth probe of 6 point meat probe PASS Flag to enable password 0 disable 1 enable PAU
46. ure defined in parameter Sbc Boiler preheating After the filling of the boiler the water is heated up to 85 C parameter SPHb and maintained at this temperature if the boiler is not used Hour counters The hour counter parameters are the following hAir hot air mode hour counter hStM steam mode hour counter hcMb combi mode hour counter Parameter PPM Setting this parameter to 1 the Energy Optimiser function is enabled with Sicotronic system in the foreseen electric ovens The 2 high voltage digital inputs named IND4 X10 11 5 and IND5 X10 11 6 and the 2 output relays RL5 and RL24 are used RL5 is closed each time the oven has to use the heating elements at half or full power while RL24 is closed when the heating elements have to be used at full power independently from Sicotronic system IND4 and IND5 are the high voltage inputs of the commands from Sicotronic system if on IND4 and IND5 are present 230V the oven is working normally if only one is at 230V the oven is forced from Sicotronic system to work at half power with no visualization on the display if both IND4 and IND5 are at OV the oven is forced to cut all the heating elements Parameter dEMO If enabled set to 1 this parameter makes the oven working in demo function i e the user interface is fully working but the oven does not make any real function no load is activated Parameter tbon Timeout for E SL error if it is set to 0 the control is disabled from firmw
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