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Service Manual - Appliance Factory Parts

1. CNO1 UPPER Relay P C B LOWER our WH RY1 RY5 m BLOWERHI BLOWER HI Te w H 1 w 1 BLOWER RD Hp BLOWER BLOWER ami LOW Low 9 BK s j p RY3 RY7 Hi Q CONV FAN CONV FAN o A VI I 1 RY4 RY8 573 DOOR DOOR 1 MOTOR MOTOR 9 1 CN RY9 RY10 6714 1 OVENLAMP EN OVEN TRANSFORMER LAMP LAMP 1 7 Q I i I I 1 I I i I I 1 RY18 6 E RY11 1 g l BROIL OUTER BAKE BROIL A BL A OUTER RY12 RY17 9 Bc BROIL INNER O CONV BROIL E 1 l INNER Q CONV HEATER Sus H RY16 BROIL pale BROIL INNER INNER I O BROIL OUTER BROIL HEATER I I I i RY44 1 I i SEHN MEE 9 OUTER i i I I R RY19 RY20 DOUBLE LINE DOUBLE LINE uU BREAK RELAY BREAK RELAY BK NA Thermostat WIRE COLORS Main P C B PRI SEC SYMBOL COLOR MEAT d TRANSFORMER dins Thermostat mb mp gm P mn EN CNN Dione p MESS Boor eck SWITCH UPPER on ao OR ORANGE O Q DOOR MOTOR SWITCH LOWER WH O O oven SENSOR WH LOWER LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes STRIP CIRCUITS Complete the following steps before checking electric oven circuit 1 Check the line voltage household fuse or circuit breaker 2 Check for loose wiring or mis wiring within electric range NOTE The following individual ci
2. OUT BROIL 1500 Thermostat YL VI BN DOUBLE LINE BREAK RELAY Note In case of Bake mode the convection fan will operate only for preheating LGE Internal Use Only 6 3 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Bake amp Roast mode Relay P C B BLOWER HI RY1 Up RY5 Lo BLOWER LOW RY2 Up RY6 Lo o Q BAKE 2500W IN BROIL 2500 0O OUT BROIL 1500 Thermostat YL BN DOUBLE LINE BREAK RELAY Self Clean mode DOOR SWITCH Mai ain P C B UPPER CNO8 o o Me DOOR MOTOR SWITCH UPPER DOOR SWITCH LOWER DOOR MOTOR SWITCH LOWER m Relay P C B BLOWER HI HI YL RY1 Up RY5 Lo RD O BLOWER BL BLOWER LOW LOW RY2 Up RY6 Lo DOOR MOTOR RD DOOR GY RY4 Up RY8 Lo MOTOR Vi Lo RD m RY11 Up o7 Lre 5 RY IBtLo BAKE 2500W RY 13 Up IN BROIL 2500 RY17 Lo aia RY14 Up RY18 Lo e CIRCUIT SHOWN WITH ALL HEATERS SET TO OFF O BLATo e DOOR LOCK MOTOR AND BLOWER LOW SET TO ON OUT BROIL 1500 Thermostat e OVEN DOORS CLOSED AND UNLOCKED YL RY1 atLoy NOTE SELF CLEAN CAN ONLY BE RUN IN EITHER THE RY20 Lo UPPER OR LOWER OVEN SELF CLEAN CAN NOT 5 BN DOUBLE LINE BE SIMULTANEOUSLY IN THE UPPER
3. LWDS3081ST 00 FOR USE ON 120 240 V OR 120 208 V KOREA SERIALNO 120 240 V 7 8kW NOSSA US a 120 208 V 5 9kW 5355 P No MEZ5122320 Tech Sheet Location LGE Internal Use Only 1 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes GENERAL SPECIFICATIONS Items Specifications Remarks Model name LWD3081ST Built in Double wall oven North American market Rating power source 240V 60Hz Single phase amp 4 wires Max power 7 8 KW 120 208V 5 9 KW Rating power consumption Bake 2 500W 10 4A x 2 Upper Lower oven amp Rating input current Broil 4 000W 16 7A X2 Upper Lower oven Convection 2 500W 10 4A X 2 Upper Lower oven Lamp 12V 10W 0 8A x 2 Front ceiling area Lamp 12V 10W 0 8A X 2 x 2 Left amp right sides Cooling motor 120V 41W 0 34A x 2 Convection motor 120V 42W 0 65A x 2 Locking motor 120V 3 5W 0 03A x 2 r emey Herten O Capaciy veal WiHAD Alc Gaara Ra XAT e s Cutout se wao aese OOOO o TN NO O O A s 1 Co Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes USING YOUR OVEN GENERAL INFORMATION Rating Label Model numbers are recorded on the rating label Rating label is located on the lower left bottom area of the controller It can be seen by opening the Upper door Before ordering parts write down the corr
4. Bake element Thermostat LGE Internal Use Only 3 10 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUC TIONS LOWER 4 To remove the hidden bake element Remove screws from middle support a Remove the barrier bracket Barrier bracket Middle support lt z Lower Door id i lock motor b To remove the convection motor assembly i amh refer to the following page 3 8 Lower door 8 To replace the Vent motor Door lock motor and Lower vent motor door switch in the lower oven you must separate the upper oven from the lower oven Please 1 To remove the vent motor refer to the follow the steps below DUI following page 3 6 Remove Mounting side rails 2 To remove the Door lock motor assembly refer to the following page 3 3 3 To remove the Door switch refer to the following page 3 7 Copyright 2007 LG Electronics Inc All right reserved 3 11 LGE Internal Use Only Only for training and service purposes DISASSEMBLY INSTRUCTIONS UPPER LOWER REMOVING amp REINSTALLING THE LIFT OFF OVEN DOOR 4 CAUTION To replace the door 1 Firmly grasp The door is very heavy Be careful both sides of the when removing and lifting the door door at the top Do not lift the door by the handle 2 With the door at the same angle as the removal To remove the door position seat the indentation o
5. Website http biz lgservice com LG 30 ELECTRIC CONVECTION BUILT IN OVEN MODEL LWD3081ST CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL June 2008 P NO MFL37118304 Printed in Korea FORWARD This LG Service Manual 30 Electric Built in Oven provides the technician with information on the operation and service of the Electric Built in Oven It is to be used as a training Service Manual For specific information on the model being serviced refer to the Owner s Manual or Tech Sheet provided with the electric oven SAFETY PRECAUTIONS e Repairs of the appliance should be carried out by a licensed technician only Incorrect repairs may result in dangerous situations If you need repairs contact an LG Service Center or your dealer e f the power cord is defective it must be replaced by a qualified service agent with a UL listed range cord e Electrical leads and cables should not be allowed to touch the oven e Rating plate is located on the bracket below the control panel e The power supply of the appliance should be turned off when it is being repaired 44 WARNING e DISCONNECT power supply cord from the outlet before servicing e Replace all panels and parts before operating e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock e DO NOT Touch when the oven operates The interior parts will be very
6. 2 e Low Voltage Transtonmer COonlroll amp gee ee ee 4 2 elow Voltage Transformer Halogen lamp 4 2 e Oven THEMIS s cesene nissa ERU EE LARES ERE d btE Cone EEWad a E PU EU Scd aL denen nce Sect Eea REA Edau 4 3 MN elesi i eC S uS LL S o enne 4 3 e Oven lamp Trete 4 3 s BIOSILEIBSInRBDEse descr saci etie ese sees eee tee ped dq ux dea eee a 4 4 e Bake Elemen isees indes Sere cadre a URL ESL ESSERUE KE LABS aeaa Rai ei adiadas idana 4 4 s Convection element seeks eERe nude tpe or asd auod ee er dE 4 4 Vani Eel RD S LLL S ce ee ee ee ee eee eo ee ee ee ee ee eee 4 4 DIAGNOSIS THROUGH SCHEMATIC eene nennen nnne nnn nnn nnn nnns 5 1 HOW TO ENTER THE TEST MODE oveeeseccseceeeceeeceseeestesecessenecenecassenscenscesseneees 5 2 SAFETY CAUTION amp ERROR CODE SUMMARY eee nnn nnn nnn 5 3 CHECKING FLOW CHART BY FAILURE MODE 5 3 5 18 OA ee e nr 5 4 5 8 e Oven does not heat including F 9 F 19 error PE 5 9 5 12 e Not operating Key including F 3 error P 5 13 e ock system failure including F 10 F 20 error Mnt 5 14 5 15 e Oven Thermistor failed including F 1 F 2 F 4 F 5 error eee PR 5 16 e Oven too hot including F 6 F 16 error Q ee ed 5 17 Communication error gt F 10 BITOPesadus ee ere Serb AREE
7. Yes END LGE Internal Use Only 5 11 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Oven does not heat including F 9 F 19 error Power On Check the thermistor using the test mode 4 Diagnosis Upper oven sensor Lower oven sensor After value the sensor value are 70 F 90 F at 24 C Power Off Check the thermistor s resistor No CNO4 pin3 4 and CNO5 Is the value OK Normal approximately 1 09 kQ Yes Replace the Sensor Is the value OK Replace the Relay PCB Replace the System PCB Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Key operating fail F 3 Check the connection key pcb s CN7 and between display pcb and key pcb CN6 Is connection OK MEME Fix the connection Yes Replace the control supporter ITO film Glass touch PCB No Is Key operating OK gt Replace the Display pcb Yes END LGE Internal Use Only 9 13 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Just after self clean start the door lock motor starts to rotate During that time if the door lock switch does not operate properly after rotating twice then supervising circuit detects a Door Lock failure and
8. a good seal Care should be taken clean error code F is displayed and error not to rub damage or move the gasket melody sounds the oven is malfunctioning in the self clean mode Switch off the electrical power to the main fuse or breaker and have serviced by a qualified technician e Do Not Use Oven Cleaners No commercial oven cleaner or oven liner protective coating of any kind should be used in or around any part of the oven e Make sure oven lights are cool before e Before self cleaning the oven Remove broiler cleaning pan all oven racks meat probe and any other DO NOT block the oven vent during utensils from the oven cavity operation This can damage the electric parts of the oven Air must be able to move freely The metal bottom trim vent should be properly assembled on the front bottom of oven before installing the oven door e Never keep pet birds in the kitchen The health of birds is extremely sensitive to the fumes released during an oven self clean cycle Fumes may be harmful or fatal to birds Move birds to well ventilated room Metal bottom trim Vent Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes GENERAL MODEL amp SERIAL NUMBER LABEL AND TECH SHEET LOCATION The Model Serial Number label and Tech Sheet locations are shown below ges LG HOUSEHOLD ELECTRIC OVEN Worm EE es AC ONLY 3WIRE 1PHASE 60 Hz h IMS s
9. training and service purposes COMPONENT TEST Before testing any components perform the following checks NOTE 1 The most common cause for control failure is corrosion on connectors Therefore disconnecting and reconnecting wires will be necessary throughout test procedures 2 If this is a new product check all connections before replacing parts 1 All test and checks should be made using a VOM or DVM having a range of at least 20 00 ohms or greater 2 Be sure to check all connections before replacing components Look for broken or loose wire failed terminals or wires not fully seated into the connectors 3 Resistance checks must be made with power disabled form oven and with wiring harness or connectors disconnected 4 WARNING e Disconnect power supply before servicing e Replace all panels and parts before operating e Reconnect all grounding devices after servicing Failure to do so can result in death or electrical shock NOTE Below value were tested at room temperature 77F 25 C Convection Motor 1 Refer to page 3 8 for Disassembly Normal Approximately 17 Q 2 Measure the resistance Replace if Infinite opened Multiple meter scale R x 1 below 5 Q shorted LGE Internal Use Only 4 1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Door locking Motor 1 Refer to page 3 10 for disassembly Normal Approximately 2550 Q 2 Measure the resistance Re
10. 100 Q Secondary1 d Eder Secondary 2 red red approximately Secondary2 TAN Under 50 Q Replace the power transformer Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE 2 Power On Check the System s Vcc CN10 s pin11 Vcc and pin9 GND The voltage should be 4 5 VDC 5 8 VDC Replace the system PCB Is the voltage OK Check the Display s Vcc CN10 s pin11 Vcc and pin9 GND or C228 or C19 Don t remove the harness The voltage should be 4 5 VDC 5 8 VDC LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Is the voltage OK Me Yes Check the System s PCB Replace the Display PCB Replace the Display PCB Copyright 2007 LG Electronics Inc All right reserved j LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Symptom No heating Check Elements Resistance ohms L OUTER BAKE HEATER UPPER BROIL HEATER CONV HEATER LOWE UPPER CONV HEATER LOWER DLB DLB UPPER LOWER 9 C1 Thermostat RYIS RY20 BAKE HEATER UPPER 4 M LOWER Thermostat LOWER Symptom No heating Che
11. AND LOWER BREAK RELAY OVENS BK Copyright 2007 LG Electronics Inc All right reserved 6 4 LGE Internal Use Only Only for training and service purposes Warm amp Proof mode LGE Internal Use Only BLOWER HI RY1 Up RY5 Lo BLOWER LOW RY2 Up RY6 Lo o o RY12 Up RY16 Lo BAKE 2500W Rn RY20 Lo DOUBLE LINE BREAK RELAY 6 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV EXPLODED VIEW INTRODUCTION Model LWD3081ST CONTROLLER PARTS e m ec 2 ze e e ove Mf Ml If If DOOR PARTS CAVITY PARTS Copyright 2007 LG Electronics Inc All right reserved xis LGE Internal Use Only Only for training and service purposes EV ao ae 1030 T 14A Z LGE Internal Use Only lt o o T SS SV DOOR PARTS 37 0 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV CONTROLLER PARTS Copyright 2007 LG Electronics Inc All right reserved 3 LGE Internal Use Only Only for training and service purposes E
12. Desired START Roast Convection Bake Roast Crisp Conv TIME start time Healthier Roast Temperature Adjustment can be START confirmed by measuring real Oven Cavity Cook amp Temperature warm Copyright 2007 LG Electronics Inc All right reserved 2 4 LGE Internal Use Only Only for training and service purposes USING YOUR OVEN 9 BROIL oi _ Deeds E sm 10 ROAST POAST gt temperature ST 11 CONVECTION BAKE in pom ME re sU 12 CRISP CONVECTION weppersre gt START 13 CONVECTION ROAST es DIES Piscis nan 14 RECIPE BANK woe rm E Corresponding menu 15 PROOF WARM LIEF CELL Wam pot ES START Crisp Conv START LGE Internal Use Only 16 HEALTHIER ROAST Healthier Selected food Hoast i category Desired Note The meat probe must be used in this feature refer to the HEALTHIER ROASTING CHART 17 My MENU ries ef onn e tt Desired Enter temp ONOR i My menu esl _ START 18 OPTION Temp Cook time Option Start time i 19 SELF CLEAN Option Select clean level Light gt 2Hours START Normal 3Hours Start Desired Start Time time ual Copyright 2007 LG Electronics Inc All right reserved Only for training and service purpose
13. H C 16Q L C 20Q Replace if Infinite opened below 5 Q shorted NOTE Q Value should be tested at room temperature 77F 25 C LGE Internal Use Only DIAGNOSIS THROUGH SCHEMATIC Apply schematic from Tech sheet AC INPUT L2 A Th N Thermostat Sym ptom Dead No Check Open Short RY1 BLOWER HI RY2 BLOWER LOW I 1 RYS CONV FAN Symptom Oven lamp not operating TRANSFORMER Check Open Short Symptom No Heating F 9 F 19 Check Open Short O BROIL INNER E Symptom Oven hot F 6 F 16 Check All heater Relays Short RY19 DOUBLELINE DOUBLE LINE BREAK RELAY BREAK RELAY Thermostat Symptom Dead Check Open Short Main P C B SEC 0 70 ale MEAT pd TRANSFORMER PROBE YL 9g EE Thermostat OVEN 2O OX WH UPPER SENSOR MP UPPER il DOOR SWITCH UPPER Symptom Sensor error or no heating F 1 F 2 F 4 F 5 OVEN Check using test mode SENSOR LOWER DOOR MOTOR SWITCH UPPER Symptom DOOR SWITCH LOWER Door lock failure F 1 F 2 WIRE COLORS DOOR MOTOR SWITCH LOWER LACK RD RED BN BROWN OR ORANGE Model LD3580SP 30 Built in Oven LGE Internal Use Only 5 1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes HOW TO ENTER THE TEST MODE NOTE Before entering Test Mode make s
14. OCaAtIONS uu2uu225u52u522u2uu22u52uu22u2uuuuuuuuunnnnnnnnnnnnnnnnnnnn 3 1 DISASSEMBLY INSTRUCTIONS UPPER emm 2 9 3 3 e Replacing the control panel and related components w CtL R nae 3 2 3 3 E Removing the Low Voltage Transformer controller 3 2 E Removing the Relay rl E 3 3 Removing the door lock assembly 3 3 S Removing the Low Voltage Transformer halogen lamp GBR 3 3 z Removing the Serge MITO irii aa ee ee ree 3 3 DISASSEMBLY INSTRUCTIONS UPPER LOWER 3 4 3 5 Replacing oven cavity components A E 3 4 3 5 Removing ligicmel ilee caicaler LL nnne 3 4 Removing the Convecion elemenl esse ee eee 3 4 Removing the es sce Cl te ee ee ee ee ee a ne eee ree re er ere did nx eee E xu 3 5 Removing the Halogen lamp amp socket assembly TE 3 5 Replacing other electrical components T E E TE 3 6 3 9 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Removing e Vani NOG Me eee ee ee eee eee ere eee eee 3 6 Removing ihe Thermal lItilll amp l eimir eee ere EI E ERE ee eee ere 3 7 Removing te Belen espe LLL LS ER 3 7 R
15. V UPPER CAVITY PARTS Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 7 4 LGE Internal Use Only EV LOWER CAVITY PARTS LGE Internal Use Only 7 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV ASSEMBLY Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only LG Electronics Inc
16. When the oven is initially plugged in or Sep gt Select Brightness OK when the power supply to the oven is interrupted 3 CLEAR to reject the change 2 Key Input Process 4 Sound Volume Loud Normal Mute 1 Requirement When want to reduce or Set Up reat L set clock time increase the volume 2 Key Input Process Select am pm OK Set Up gt Select Volume OK 3 CLEAR to cancel the clock setting 3 CLEAR to reject the change 8 Reset 4 Exception Error Alarm Preheat Alarm Timer End Alarm If Mute Normal Beep Sounds 1 Requirement Setting Value will be default value 1 Requirement When using convection Auto conversion will automatically convert an Set Up gt Select Yes No OK entered regular baking temperatures to convection baking temperatures 3 CLEAR to reject the change 2 Key Input Process 7 BAKE Set Up Select mode OK BAKE Desired Temperature START 3 CLEAR to reject the change 6 Temperature Adjustment 1 To change the oven temperature during use 8 TIMED COOK DELAYED TIMED COOK follow the steps below BAKE Desired TEE Fahrenheit 35 35 BROIL i Temperature Centigrade 19 19 2 Key Input Process y inp k Desired START emperature Cook amp 3 CLEAR to reject the change warm Set Up gt Adjust Temperature gt OK Note This adjustment is available for Bake START
17. aining and service purposes USING YOUR OVEN CONTROL PANEL FEATURES READ THE INSTRUCTIONS CAREFULLY BEFORE USING THE OVEN For satisfactory use of your oven become familiar with the various features and functions of the oven as described below Oven Select On Off Control UPPER UPPER UPPER LIGHT OVEN START CLEAR OFF CONTROL LOCK TIMER LOWER ON OFF CLEAR OFF 1 UPPER LIGHT Use to turn the upper oven lights on and off 10 Bake Use to select the normal bake mode 2 LOWER LIGHT Use to turn the lower oven lights on and off 11 Broil Use to set the variable broil mode 3 UPPER OVEN Use to activate the upper oven for the main 12 Roast Use to select the normal roast mode menu selection 13 Conv Bake Use to select the convection bake mode 4 LOWER OVEN Use to activate the lower oven for the main 14 Crisp Conv Use to select the crisp convection mode menu selection 15 Conv Roast Use to select the convection roast mode 5 START Use to start all oven features Activate the 16 Recipe Bank Use to recall the recipe category of gourmet CONTROL LOCK for 3 seconds holding food 6 TIMER ON OFF Use to set or cancel the timer 17 Proof Warm Use to proof bread Use to hold food warm 7 UPPER CLEAR OFF Use to stop cooking or cancel the 18 Healthier Roast Use to select the healthier roast mode setting of the upper oven 19 My Menu Use to save or recall the favorite 10 cook mode 8 LOWER CLEAR OFF Use to stop co
18. al Below 5 Q 2 Measure the resistance after cool down Replace if Infinite Multiple meter scale R x1 LGE Internal Use Only 4 3 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Broil Element Bake Element Convection element Vent motor 1 Refer to page 3 4 for disassembly 2 Measure the resistance after cool down Multiple meter scale R x 1 1 Refer to page 3 8 for disassembly 2 Measure the resistance after cool down Multiple meter scale R x 1 1 Refer to page 3 4 for disassembly 2 Measure the resistance after cool down Multiple meter scale R x 1 1 Refer to page 3 6 for disassembly 2 Measure the resistance after cool down Multiple meter scale R x 1 4 4 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Normal Approximately Inner 22 5 Q Outer 36 9 Q Replace if Infinite opened NOTE Outer Broil element use Outer yellow and Blue terminals to check resistance Inner Broil element use inner yellow and pink terminals to check resistance NOTE Q Value should be tested at room temperature 77F 25 C Normal Approximately 22 5 Q Replace if Infinite opened NOTE Value should be tested at room temperature 77F 25 C Normal Approximately 32 5 Q Replace if Infinite opened NOTE Value should be tested at room temperature 77F 25 C Normal Approximately
19. and pull towards the left Be careful not to damage the oven 3 While holding the door latch in the Unlocked position you can now 3 To remove the Door lock assembly Open the door open the door and remove the 2 screws located on the front grill Unlocking tool Door Hook Remove the 2 connectors Note Refer to the service manual for proper replacement of the door lock motor 4 To remove the Halogen lamp remove the 1screw Disconnect the 5 connections DOOR LOCKING MECHANISM The door lock assembly is located on top of the Upper and Lower oven The structural elements are as below 5 To remove the Surge filter remove the controller LVT and then remove the 1screws located back plate Disconnect the 2 connections The door lock is controlled by the PCB and is activated when the oven is put into a self clean cycle The oven will remain locked after a self Copyright 2007 LG Electronics Inc All right reserved 3 3 LGE Internal Use Only Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER LOWER REPLACING OVEN CAVITY COMPONENTS 1 To remove the broil element a WARNING a Remove the 4 screws from the front and rear e ELECTRIC SHOCK HAZARD Unit must be disconnected from electrical brackets outlet when making repairs replacements adjustments Replace all panels before operating oven Failure to do so can result in death or electrical shock 44 CAUTION B
20. are When Opening Door Let hot air or steam escape before you remove or replace food in the oven e Do Not Heat Unopened Food Containers Build up of pressure may cause container to burst and result in injury e Keep Oven Vent Ducts Unobstructed The oven vent could become hot during oven use Never block this vent and never place plastic or heat sensitive items on or near the vent NOTE For proper operation vent trim must be installed Metal bottom trim Vent Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes e Be certain all packing materials are removed from the appliance before operating Keep plastics clothes and paper away from parts of the appliance that may become hot e DO NOT force the door open This can damage the automatic door locking system Use care when opening the oven door after the self cleaning cycle Stand to the side of the oven when opening the door to allow hot air or steam to escape The oven may still be VERY HOT e DO NOT use a steel wool pad It will SCRATCH the surface e DO NOT use harsh etching abrasive cleaners or sharp metal scrapers to clean the oven door glass since they can scratch the surface It may result in shattering of the glass e Be careful when removing and lifting the door e DO NOT lift the door by the handle The door is very heavy e DO NOT step or sit on oven door Be sure to follow proper installation i
21. at or poultry should be chilled in the refrigerator first Even when chilled they should not stand in the oven for more than 1 hour before cooking begins and should be removed promptly when cooking is completed Eating spoiled food can result in sickness from food poisoning e Should an oven fire occur leave the oven door closed and turn the oven off If the fire continues throw baking soda on the fire or use a fire extinguisher DO NOT put water or flour on the fire Flour may be explosive and water can cause a grease fire to spread and cause personal injury e DO NOT use the broiler pan without the grid DO NOT cover the grid with aluminum foil LGE Internal Use Only 1 3 44 WARNING e Children should be kept away from the oven e Accessory parts will become hot when the broiler is in use 44 CAUTION e Children should not be left alone or unattended in area where appliance is in use Children should never be allowed to sit or stand on any part of the appliance 44 CAUTION e DO NOT leave small children unattended near the appliance During the self cleaning cycle the outside of the oven can become very hot to the touch Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes GENERAL READ ALL INSTRUCTIONS BEFORE USE SAFETY WHEN CLEANING e Do Not Clean Door Gasket The door gasket is e Important Instruction In the event the self essential for
22. ce the Sensor Copyright 2007 LG Electronics Inc All right reserved 2 16 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Oven is too hot F 6 16 error Remove the relay PCB harness and pull the relay PCB forward from case Check the L1 TAB1 18 TAB6 20 and all the heater relay welded or not AND measure the resistance Welded Normal Continuity Infinite Replace the system PCB Replace the relay PCB LGE Internal Use Only 9 17 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE F 10 error communication error Check the PCB s test mode Check the 4 Diagnosis Communication check B E Check the connection between the system and display CN10 Is the connection OK Fix the connection Check the test mode END 1 power check No Do they operate the Heaters Replace the Display PCB Replace the System PCB Copyright 2007 LG Electronics Inc All right reserved 5 18 LGE Internal Use Only Only for training and service purposes SCHEMATIC DIAGRAM 44 WARNING NOTE POWER MUST BE DISCONNECTED BEFORE SERVICING Schematic diagram shows oven THE APPLIANCE FAILURE TO DO SO CAN RESULT IN AC INPUT GOD C OSEA and UDIgeXed AN DEATH OR ELECTRICAL SHOCK elements are set to OFF L2 ATN N Thermostat LOWER L1 IM RD O O
23. ck connection Symptom No heating Check Open Short No heating 1 Check Electric wiring and PCB s connection 2 Check the thermostat 3 Check the heater s resistor 4 Check the sensor LGE Internal Use Only 9 9 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No heating including F 9 F 19 error Check the electric wire connection DLB and and harness of Relay and each heater s connection And system PCB and Relay PCB CN11 CN12 Loose connection and disconnection RYM 3 BROIL OUTER UPPER Check the thermostat open short between DLB Relay s L2 and L2 BK wire If it have the error it is open state Thermostat UPPER RYI9 DLB No Replace the thermostat END Copyright 2007 LG Electronics Inc All right reserved 5 10 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Oven does not heat including F 9 F 19 error Measure the Resistor of each heater RY 1 Between the DLB Relay s L2 and BAKE hh Relay s H int of Fi 1 o o3 22 2 ali point of Figure BAKE HEATER UPPER measure the resistance after cooling down UPPER s s CONV Normal UPPER UPPER 2 3 BROIL INNER 3 BROIL OUTER aa UPPER og RY19 DLB If it is not correct Measure heater resistance directly Replace the error heater
24. e careful when you work on the b Pull the element forward so that you can electric oven handling the sheet access the terminals and disconnect the wires metal part 1 Turn off the electrical supply going to the oven 2 Remove the Upper Lower door assembly 3 To remove the following components follow the sequence below Broil element Convection element Fan blade Oven thermistor Halogen lamp can be serviced without removing the oven 2 To remove the convection element a Remove the 4 screws on the convection fan cover fo SESS oe ements Halogen lamp 3EA LGE Internal Use Only 3 4 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUCTIONS UPPER LOWER b Remove the 4 convection element screws The convection element is fragile Care should be taken to avoid any risk of injury 4 To remove the halogen lamp amp socket assembly a There are three halogen lamp amp socket assembly in the oven cavity c Pull the element forward so that you can b Insert a flat blade access the terminals and disconnect the wires screwdriver into the guide hole and pull off C Replace the halogen lamp then reinstall the glass cover Te wy 1 Note The above instructions can be used for replacing any of the halogen bulbs in either oven 44 CAUTION Be careful not to bend the fan blade 5 To remove oven tem
25. ect model and serial number from rating label This avoids incorrect shipments and delays Please refer to parts reference material when ordering replacement parts Functional O peration Bake Mode Top and hidden bottom elements operate during bake Bake can be used to cook foods which are normally baked Oven must be preheated Convection fan and heater operates during the Preheat cycle of Bake mode Broil Mode Top element operates during broil Broil can be used to cook foods which are normally broiled Preheating is not required when using broil All foods should be turned at least once except fish which does not need to be turned Convection Bake Roast Mode Upper element lower element Rear element and fan operate during convection bake Convection bake should be used for cooking casseroles and roasting meats Oven should be preheated for best results when using convection bake Pans do not need to be staggered Cooks approximately 25 quicker than bake Broil element lt ran Convection element lt Bake element 2 1 LGE Internal Use Only Cooking Guide Refer to the owners manual for recommendations of times and temperatures Times rack position and temperatures may vary depending on conditions and food type For best results always check food at minimum time When roasting choose rack position based on size of food item Copyright 2007 LG Electronics Inc All right reserved Only for tr
26. ee 5 18 SOE TIC DIAGPR AI iraner NEPKRI UIN KS PURI RERENICUNEQENT SUP ENE NNUS 6 1 e otrip CIFCUITS ctlblblblb EE 6 2 6 5 EXPLODED VIEW reeeeeeereereeeeeeerHeHeHHee eH He 7 1 7 6 REPLACEMENT PARTS LIGT wicctrsiieetecirvnercttersiacansioneescemene 8 1 8 3 Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes GENERAL READ ALL INSTRUCTIONS BEFORE USE Head and follow all instructions before using your oven to prevent the risk of fire electric shock injury to person or damage when using the range This guide don t cover all possible conditions that may occur For further assistance contact your service agent or manufacturer This is the safety alert symbol This symbol alerts you to potential hazards that can kill or hunt you and others All safety messages will follow the safety alert symbol and either the word WARNING or CAUTION These word means This symbol will alert you to hazards or unsafe practices which could cause A WARNING serious bodily harm or death This symbol will alert you to hazards or unsafe practices which could cause fs CAUTION bodily injury or property damage 4 WARNING e NEVER use your appliance for warming or heating the room e DO NOT use water on grease fires Turn off the oven to avoid spreading the flames Smother the fire by closing the oven door or use dry chemical baking soda or foam type ex
27. emoving the Thermal limiter Double Line Brake_Upper 3 8 Removing the Convection motor assembly 3 8 Removing the Hidden bake elemiert rere REES 3 8 3 9 DISASSEMBLY INSTRUCTIONS LOWER eem 3 10 3 11 Removing the Thermal limiter Double Line Brake_Lower reuse 3 11 Removing the Convection motor assembly sees 3 11 Removing the Thermal liter ELLE eee ee VR 3 11 Removing the Hidden bake element suono iren ende te i o pde receE ee Ehe aea user rh ve EIE UT rur 3 11 Removing the v ht MOIO Gee ee ee ee ee ee er ee ee 3 11 Removing the Door lock motor assembly a eee 3 11 5 Removing the DOOF Gite ee ee ee 3 11 DISASSEMBLY INSTRUCTIONS UPPER LOWER enee 3 12 3 15 e Removing amp Reinstalling the lift off oven GOOT erts et ee er er ee 3 12 e Removing the oven door handle amp glass P 3 13 3 14 e Removing the oven door gasket METUIT EUN 3 15 COMPONENT TEST ceeececeecceeceeecestcestenscentcescanscesscescanecessanesaneceesesesaneeeess 4 1 4 4 Convection MOLO LLL 1 2 nnm 4 1 e Door locking MOIO Cte Ce run REL ee ee ee ee ee re ee ee ee eer re ee Ed cog 4 2 e Door locking NGG eSI ERI QI LL DE 4
28. en 2 Open the upper door assembly 3 Remove the 3 screws from below the control panel 8 To remove the following components follow the sequence below Controller LVT Relay PCB Door lock motor Halogen lamp LVT Surge filter can be serviced without removing the oven 4 Close the upper door assembly 5 Lift the control panel off from the guide hooks and top trim Tilt the control panel down Hinge panel into slots on main body and let control panel rest 1 To remove the PCB Low voltage transformer Remove the 1 screw LGE Internal Use Only 3 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUCTIONS UPPER 2 To remove the Relay PCB Remove 1 screw clean until the temperature fall below 500 F 260 C and slide relay PCB out If there is a failure of this motor the following steps Disconnect the 13EA connector from PCB can be followed to unlock the door manually assembly CNO1 CN02 CNO3 CN04 BL YL Unlocking status Locking status WH VI VI RD YL RY19 RY20 and separate Relay PCB assembly TO UNLOCK THE OVEN DOOR MANUALLY In case of need the oven door could be unlocked asm RV manually for the service Follow the steps below 7 We dies 1 Disconnect oven from the power source 2 Using a L shaped object BE close hanger insert it into the gap between the door and the control panel Grasp the hook on the motor
29. er assembly on a padded work surface with the hinge over the edge 3 Remove the two hinge hanger screws 4 Remove the three bottom screw from the door liner 5 Lift the inner assembly off the front glass and set it aside Copyright 2007 LG Electronics Inc All right reserved 3 13 LGE Internal Use Only Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER LOWER 5 Lift the COVER INNER 2 off the door liner 6 Lift the hinge out of the door liner slot To remove the oven door glass assembly 7 Lift the COVER INNER 1 off the door liner 8 Lift the inner oven door glass and bracket assembly out of the door liner INNER OVEN DOOR GLASS amp BRACKET LGE Internal Use Only 3 14 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER LOWER REMOVING THE OVEN DOOR GASKET 1 Remove oven door 3 Pull the ends of the gasket out of the liner holes 2 Pull the oven door gasket clips out of the liner Liner Hole holes until all of the clips are removed REASSEMBLY NOTE When reinstalling the new gasket make sure that all of the clips are seated in their liner holes and that the ends of the gasket are pushed fully into their holes Use the pointed end of a pencil to push the gasket ends into the holes Copyright 2007 LG Electronics Inc All right reserved 3 15 LGE Internal Use Only Only for
30. f the hinge arm into the bottom Indentation edge of the hinge slot The notch in the hinge arm must be fully seated into the bottom of the slot 1 Fully open the door 2 Pull the hinge locks down toward Fig 1 the door frame to the unlocked position A T e V Q2 Fully open the door If the door will not fully open the indentation is not seated correctly in the bottom edge of the slot 4 Push the hinge locks up against the front frame of the oven cavity to the locked position 4 Close door to the door removal position which is approximately 5 degrees refer to the Fig 2 5 Close the oven door 5 Lift door up and out until the hinge arm is clear of the Slot LGE Internal Use Only 3 12 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER LOWER REMOVING THE OVEN DOOR HANDLE amp GLASS 6 To remove the door handle amp trim as CAUTION a Remove 2 screws for handle and replace e Be careful when you work on the b Slide Door trim up and off electric oven handling the sheet metal part Handle Screws 1 Remove the oven door from the oven see page 3 11 2 Place the oven door on a padded work surface with the front glass facing down 3 Remove the 4 top door screws 7 To remove the hinge assembly 1 Remove the 2 lower liner screws see step 3 2 Place the door lin
31. hot LG Electronics assumes no responsibility for any repairs made on our products by anyone other than Authorized Service Technicians Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes TABLE OF CONTENTS PAGE GENERA CECI 1 1 1 6 e Read all instructions before use lt n rere cence nen een e nnn en een eee ra ene een eeneeneeneneens 1 1 1 4 e Model amp Serial number label and tech sheet locations steer cece eee een e eee eee eeee 1 5 e Specifications t M 1 6 USING YOUR RANGE eee Hee eee ree Pee ree 2 1 2 5 e neral Intormallo ssesiestesesoseuewsasa ee aai ee ee 2 1 e Control panel CAU RICE D Il ntm 2 2 2 5 Setting the initial control Start clean off Oven light Upper Lower Timer Control lockout Set up 8 different category 1 Language selection 2 Temperature selection unit 3 Display brightness 4 Sound volume Loud Normal Mute 5 Convection auto conversion 6 Temperature adjustment 7 Clock time 8 Reset Bake Timed cook Delayed timed cook Broil Roast Convection bake Crisp convection Convection roast Recipe bank Proof Warm Healthier roast My menu Option Self clean DISASSEMBLY INSTRUCTIONS ncesccsseceeccesceecseneeecceescenseeecanscassesecanesess 3 1 3 3 Component L
32. idden bake element and its BAKE HEATER COVER out of the oven f When replacing the Bake Element cover use the 5 screws provided Copyright 2007 LG Electronics Inc All right reserved 3 9 LGE Internal Use Only Only for training and service purposes DISASSEMBLY INSTRUC TIONS LOWER 7 To remove the Thermal limiter Convection motor 1 To Remove Thermal Limiter Double Line Brake and Bake Element from the lower oven Follow Lower remove the screw and 2 wire leads the steps as follows Remove Lower rear cover THERMAL LIMITER e To shut down the control power transformer The upper thermostat is located in front of the upper cooling fan It opens at 356 F 180 C and closes when the oven temperature cools below 14 F 10 C The lower thermostat is located next to lower bake element It opens at 320 F 160 C and closes when the oven temperature cools below Rear cover ai 14 F 10 C 2 To remove the convection motor assembly refer to the following page 3 8 3 To remove Thermal limiter remove the 2 wires and 1screws Thermal limiter Double Line Brake_Lower Convection motor THERMAL LIMITER e To shut down the heaters The thermostats are located at the back of the oven next to each broil element and wired in series with each Double Line Break relay The upper oven thermostat opens at 356 F 180 C and the lower oven thermostat opens at 284 F 140 C Reclose Temp 31 F 35 C
33. k Failure Lower LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE AC INPUT T LZ NN WH ER Thermostat ane LOWER NC PRI E RD SED B TRANSFORMER B Thermostat UPPER OM Lo Wh Symptom Check Point 1 Dead 1 Check for power to wall oven 2 No Display 2 Check the thermostat 3 Check the Transformer 4 Check the System and Display Copyright 2007 LG Electronics Inc All right reserved 9 4 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No display Power off Check for loose connector s or disconnect CNO1 CNO2 CNO3 Main P C B between system CN10 and display CN10 SEC af TRANSFORMER Thermostat 15A 180C O E NN Fix the connection END Y Power On i Check AC input voltage of oven System PCB CNO1 pin 1 and 3 Should have 120VAC LGE Internal Use Only 9 9 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Power off Check the Thermostat open short L1 and CNO1 s RD color wire N and CNO1 s WH color wire If it have the error it is open state Replace the thermostat Check the power transformer Refer to the below n a Under
34. l Use Only Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER 1 To Remove Thermal Limiter Double Line Brake 3 To remove the hidden bake element Upper remove the screw and 2 wire leads a Remove the Vent cover Barrier bracket THERMAL LIMITER e To shut down the heaters The thermostats are located at the back of the oven next to each broil element and wired in series with each Double Line Break relay The upper oven thermostat opens at 356 F 180 C and the lower oven thermostat opens at 284 F 140 C Reclose Temp 31 F 35 C Barrier bracket 2 To remove convection motor assembly b Disconnect the 2 wire leads remove the Before removing the convection fan motor first Bake element cover follow the steps for removing Convection Heater a Disconnect the 2 wire leads and remove the Bake element cover upper b Separate parts of cavity inner between cavity c Cut the 8 points of flange and remove the outer properly Bake element cover refer to the page3 5 About cavity inner disassembly method SS Fan Motor Convection _ Heater Mounting Scews 3ea Bushing Cavity Px h Fan Coven N Washer Inner Outer Scews Se 4ea LGE Internal Use Only 3 8 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER d Bend the insulator up and remove the 1 screw e Carefully pull the h
35. lectronics Inc All right reserved Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER COOLING FAN BLOWER 4 Squeeze tabs on switch and slide through the Self Clean Mode The cooling fans can front operate at 2 different speeds based on Disconnect the wires from terminals temperature If the temp is above 482 F 250 C the fans will operate on high If temp is below 482 F 250 C the fans will operate on low e Normal Cooking Mode If either upper oven or lower oven temperature reaches 212 F 100 C the cooling fans will operate at low speed at a time 2 To remove thermal disk remove the 1 screw and remove the 2 wires 6 To remove the Thermal limiter Convection motor and Bake Element from the upper oven Follow the steps as follows Remove Upper rear cover m Rear Cover upper THERMAL LIMITER e To shut down the control power transformer The upper thermostat is located in front of the upper cooling fan It opens at 356 F 180 C and closes when the oven temperature cools below 14 F 10 C The lower thermostat is located next to lower bake element It opens at 320 F 160 C and closes when the oven temperature cools below 14 F 10 C 3 To remove door switch Remove the 1 screw Thermal Limiter Double Line Brake_Upper Convection motor from the top right panel Bake element Copyright 2007 LG Electronics Inc All right reserved 9 7 LGE Interna
36. n and sec on timer operation 5 CONTROL LOCKOUT 1 The START key controls the Control Lock feature The Control Lock feature automatically locks most oven controls from being turned ON It does not disable the timer and the interior oven light The Control Lock feature will cancel the cooking mode and will lock the oven controls at any time when you activate this feature 2 Key Input Process START for 4 seconds Lock melody will sound 3 To unlock the control press START for 4 seconds Unlock melody will sound 6 SET UP 8 DIFFERENT CATEGORIES 1 Language Selection 1 Requirement The scroll display can be shown either in English Spanish French 2 Key Input Process Set Up Select language OK 3 CLEAR to reject the change 2 Temperature Selection unit 1 Requirement The oven control can be programmed to display temperatures in Fahrenheit or Centigrade The oven has been preset at the factory to display in Fahrenheit 2 Key Input Process Set Up gt Select Temp Unit OK 3 CLEAR to reject the change Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes USING YOUR OVEN 3 Display brightness 7 Clock Time 1 Requirement LCD Display Brightness 1 Requirement The clock key is used to set the adjustment clock in idle mode The clock can be set to 12 2 Key Input Process or 24 hour format am and pm can be set in 12 hours
37. n become very hot to touch e Be careful when you work on the electric oven handling the sheet metal part Sharp edge may be present and you can cut yourself e Be careful not to bend the fan blade e The door is very heavy Be careful when removing and lifting door Do not lift the door by the handle LGE Internal Use Only 1 1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes GENERAL READ ALL INSTRUCTIONS BEFORE USE SAFETY PRECAUTIONS e Be certain your appliance is properly installed and grounded by a qualified technician e Do not repair or replace any part of the appliance unless specifically recommended in the manual All other servicing should be referred to a qualified technician e Always disconnect power to appliance before servicing by unplugging removing the fuse or switching off the circuit breaker e DO NOT TOUCH HEATING ELEMENTS OR INTERIOR SURFACES OF OVEN Heating elements may be hot even though they are dark in color Interior surfaces of an oven become hot enough to cause burns During and after use do not touch or let clothing or other flammable materials contact heating elements or interior surfaces of oven until they have had sufficient time to cool Other surfaces of the appliance may become hot enough to cause burns Among these surfaces are oven vent openings and surfaces near these openings oven doors and windows of oven doors Use C
38. ning and service purposes SAFETY CAUTION amp ERROR CODE SUMMARY 1 1 Safety Caution e Normal State is power OFF unless described differently as power ON 1 2 Error Code Summary Code Description Operation Opened Sensor Upper Oven Thermistor remain open for over 1 min after cook Upper starts Shorted Sensor Upper Oven Thermistor is shorted for over 1 min after cook starts Upper Touch Sensor Key Error When touch senor key has some error for gt 60 second Opened Sensor Lower Oven Thermistor remain open for over 1 min after cook Lower starts Shorted Sensor Lower Oven Thermistor is shorted for over 1 min after cook starts Lower Oven hot Upper Oven temperature is over 650 F 343 C continuously during 2 minutes on cooking Temp Probe Upper No heating Upper Door Lock Fail Upper Comm Error Upper Temp Probe Thermistor is shorted for over 1 min after cook starts If oven temperature in the UPPER oven does not exceed 150 F 66 C in less than 5 minutes Upper Oven in case of Door Lock Failure Communication error between user interface and main PCB for over 10 seconds EEPROM Error EEPROM Error for My Menu Oven hot Lower Lower Oven temperature is over 650 F 343 C continuously during 2 minutes on cooking No heating Lower If oven temperature in the LOWER oven does not exceed 150 F 66 C in less than 5 minutes Door Lock Fail Lower Oven in case of Door Loc
39. nstructions ELECTRICAL SAFETY e Protective Liners Do not use aluminum foil or any other material to line the oven bottoms Improper installation of these liners may result in a risk of electric shock or fire e Do Not allow aluminum foil or meat probe to contact heating elements 44 WARNING SS a Y e DO NOT place aluminum foil directly on the oven bottom LGE Internal Use Only GENERAL READ ALL INSTRUCTIONS BEFORE USE e Before replacing your oven light bulb switch off the electrical power to the oven at CHILD SAFETY the main fuse or circuit breaker panel Failure to do so can result in severe personal injury death or electrical shock e DO NOT line the oven walls racks bottom or any other part of the oven with aluminum foil or any other material Doing so will disrupt heat distribution produce poor baking results and cause permanent damage to the oven interior aluminum foil will melt to the interior surface of the oven SAFETY DURING USE e Oven Racks Always place oven racks in desired position while oven is cool e Always use pot holders or oven mitts when removing food from the oven You can be burned because cookware and plates will be hot Use caution with the TIMED BAKE or DELAYED TIMED BAKE features Use the automatic timer when cooking cured or frozen meats and most fruits and vegetables Foods that can easily spoil such as milk eggs fish me
40. oking or cancel the 20 Set up Use to change the special settings setting of the lower oven 21 Self Clean Use to select the self cleaning cycle 9 Touch Screen Show the time of day main menu and oven temperature whether the oven is the bake broil or self cleaning mode and the times set for the timer or automatic oven operations The display panel will go into a sleep mode if no activity Touch the display once to activate and again to make your selection NOTE e Press CLEAR OFF pad Allow the oven to cool for one hour ____ __ Put back into operation Main Menu e If the function error code repeats disconnect the power to the oven and call for service Upper Oven e f the oven was set for a timed oven operation and a power failure occurred the clock and all programmed functions must be reset The time of day will flash and PF will appear in the display when there has been a power failure Copyright 2007 LG Electronics Inc All right reserved 2 2 LGE Internal Use Only Only for training and service purposes USING YOUR OVEN 1 SETTING THE INITIAL CONTROL 1 LG logo display 8 seconds Initial display Power Failure or Reset First Select Language and set clock time and then the oven can be used If power failure occurs the oven will remember your language selection however you will still need to set the time of day 2 Key Function General Usage While selecting any function an ap
41. perature sensors Remove the 2 screws from the temperature 3 To remove Blade fan Convection fan a Remove nut by screwing clockwise be careful fan blade is bent easily b Fan blade can be replaced from inside oven Convection _ Heater Fan Motor Mounting Scews 3ea Bushing Cavity Washer inner Outer Fan Cover gt Scews 4ea Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 3 5 sensor bracket Pull the temperature sensor forward and remove the connector LGE Internal Use Only DISASSEMBLY INSTRUC TIONS UPPER REPLACING OTHER ELECTRICAL COMPONENTS Vent motor Thermal limiter 4 WARNING e ELECTRIC SHOCK HAZARD Unit must be disconnected from electrical outlet when making repairs replacements adjustments Replace all panels before operating oven Failure to do so can result in death or electrical shock 44 CAUTION e Be careful when you work on the electric oven handling the sheet metal part 1 Turn off the electrical supply going to the oven 2 Pull the oven away from the wall cabinet so that you can access upper panel 3 Remove the upper panel there are 3 total pieces 13 screws 4 Vent motor Thermal Limiter and Door switch can be serviced here 1 To remove the vent motor remove the 2 screws and disconnect connector Section 1 Section 2 Section 3 LGE Internal Use Only 3 6 Copyright 2007 LG E
42. place if Infinite opened Multiple meter scale R x 1000 below 5 Q shorted Door locking micro 1 Refer to page 3 10 for disassembly switch we 2 Measure the resistance normally close type Multiple meter scale R x 1000 Continuity Infinite NOTE After checking for the continuity of switch make sure to reconnect leads properly Low Voltage 1 Refer to page 3 2 for disassembly Normal Approximately Transformer Controller 5 Measure the resistance 26 Q x 1076 Multiple meter scale R x 1 Replace if Infinite or below 1 Low Voltage 1 Refer to page 3 2 for disassembly Normal Approximately Transformer Halogen 2 Measure the resistance 9 8 Q x 1096 lamp Multiple meter scale R x 1 Replace if Infinite or below 1Q Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes Oven Thermistor 1 Refer to page 3 5 for disassembly Normal Approximately 2 Measure the resistance after cool down 1090 Q Multiple meter scale R x 1000 Replace if Infinite opened below 10 Q shorted NOTE Q Value should be tested at room temperature 77F 25 C NOTE After checking for the continuity of switch make sure to reconnect leads properly Door switch 1 Refer to page 3 7 for disassembly 2 Measure the resistance after cooling down Multiple meter scale H x 1 Continuity Infinite Oven lamp 1 Refer to page 3 5 for disassembly Norm
43. propriate key input sequence must be followed In case of an inappropriate input sequence the key error beeps sound Numeric key are used while entering data temperature and time for cooking 2 START CLEAN OFF 1 START key to start oven 2 CLEAR OFF key to cancel a program during cooking or erase during programming 3 OVEN LIGHT UPPER LOWER 1 Requirement The Oven Light is used to turn on or off the oven light 2 Key Input Process Oven Light ON OFF toggle operation If the Oven Light is on by pressing oven light key the light is on even if the door is closed Oven light key can be operated while door opens 3 Exception Oven light will not operate during a self clean cycle Once self clean is complete the oven light will not operate until oven cools down 4 TIMER 1 Requirement The timer works like an alarm clock that will continuously beep until turned off The oven can fully operate during the use of the timer Setting Limit 11Hour 59Min 2 Min and Sec Setting TIMER NUMERIC Set the LGE Internal Use Only desired time min and sec UMER 2 3 3 Hour and Min setting NUMERIC Set the desired time hour and min TIMER 4 When the set time has elapsed Timer End is displayed Timer alarm melody will sound every 15 seconds until TIMER is pressed Press timer key in order to cancel running timer or clear timer end alarm The time less than 1hour is displayed in mi
44. rcuits are for use in diagnosis and are shown in the ON position NOTE Up and Lo denote Upper oven and Lower oven connections Full Broil mode CN01 03 Relay P C B X BLOWER HI o N RY1 Up RY5 Lo BLOWER LOW RY2 Up RY6 Lo RY13 Up RY17 Lo IN BROIL 2500 BL _ Td p LR RUD O LS O BK News BK I OUT BROIL 1500 Thermostat 3 YL RY19 Up RY20 Lo DOUBLE LINE BREAK RELAY Center Broil mode CN01 03 Relay P C B BLOWER HI RY1 Up RY5 Lo BLOWER LOW RY2 Up RY6 Lo RY13 Up LI Lr9 RY ILO IN BROIL 2500 BK Thermostat YL RY19 Up gt RY20 Lo DOUBLE LINE BREAK RELAY Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes Crisp Convection mode Relay P C B BLOWER HI 4 oN RY1 Upy RY5 Lo i BLOWER LOW RY2 Up RY6 Lo CONV FAN RY3 Up RY7 Lo CONV 2500W Lro OUT BROIL 1500 DOUBLE LINE BREAK RELAY Conv Bake amp Conv Roast mode Relay P C B BLOWER HI RY1 Up RY5 Lo BLOWER LOW RY2 Up RY6 Lo CONV FAN RY3 Up RY7 Lo BAKE 2500W CONV 2500W IN BROIL 2500
45. s DISASSEMBLY INSTRUCTIONS This section instructs you on how to service each component inside the range The components and their locations are shown below COMPONENT LOCATIONS Main PCB Display PCB Low Voltage Transformer Upper Oven Light 3 Side Key PCB Upper Door Latch gt i Assembly S im i i lt A Oven Sensor Upper Door Switch Convection Motor Convection Heater Hinge Hanger Lower Oven Light 3 Lower Door Latch Rt mise Te A m b GF ssembly gt SEF EEE Bake Heater Broil Heater Oven Sensor Lower Door Switch Convection Motor Convection Heater Hinge Hanger Bake Heater Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes DISASSEMBLY INSTRUC TIONS UPPER REPLACING THE CONTROL PANEL AND RELATED COMPONENTS 6 Disconnect the 8EA connector from PCB assembly 4 WARNING CNO1 CNO2 CNO3 CNO4 CN05 CNO8 CN11 e ELECTRIC SHOCK HAZARD Unit must be disconnected from electrical CN12 and separate control panel carefully outlet when making repairs replacements adjustments Replace all panels before operating oven Failure to do so can result in death or electrical shock 44 CAUTION e Be careful when you work on the electric oven handling the sheet metal part CNO8 CNOA4 1 Turn off the electrical supply going to the ov
46. the F 10 F 20 error code appears Lock failed F 10 20 error Check the terminal loose of micro switch and door locking motor No s the connection OK Yes D Fix the connection Copyright 2007 LG Electronics Inc All right reserved 5 14 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE i Check the locking motor measure the resistance Normal approximately 2 6 kQ Abnormal infinite or below 5 Q 050605 Slap Check the Relay PCB s electric connection CNO1 CNO3 Check the connection between system PCB and relay PCB CN11 CN12 No Fix the connection END oe me Replace the Replace the Relay PCB Replace the Relay PCB D LGE Internal Use Only 9 15 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE oven sensing failed including sensor error Check the thermistor using the test mode 4 Diagnosis Upper oven sensor Lower oven sensor After value the sensor value are 70 F 90 F at 24 C Power Off Check the thermistor s resistor No CN04 pin3 4 and CNO5 Is the value OK Normal approximately 1 09 kQ Yes Is the value OK Replace the system PCB Repla
47. tinguishers e Use only dry pot holders Moist or damp pot holders on hot surfaces may result in burns from steam Do not let the pot holder touch hot heating elements Do not use a towel or other bulky cloth e Storage in or on appliance Flammable materials should not be stored in an oven or near surface elements e Wear proper apparel Loose fitting or hanging garments should never be worn while using the appliance e DO NOT place aluminum foil directly on the oven bottom e Children should be kept away from the oven Accessible parts may become hot when the broil is use e DISCONNECT power supply cord from the outlet before servicing e Replace all panels and parts before operating e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock e DO NOT Touch when the oven operates The interior parts will be very hot e ELECTRIC SHOCK HAZARD Unit must be disconnected from electrical outlet when making repairs replacements adjustments Replace all panels before operating oven Failure to do so can result in death or electrical shock 4 CAUTION e DO NOT leave children alone Children should not be left alone or unattended in area where appliance is in use Children should never be allowed to sit or stand on any part of the appliance e DO NOT leave small children unattended near the appliance During the self cleaning cycle the outside of the oven ca
48. ure to record the customers settings such as items in MY MENU and SET UP When the Test Mode is activated is can erase items the customer has added or changed in these menus To enter the test mode 1 Remove power from the oven 2 Return power to the oven Note do not set the time of day 3 Then press Start Timer on off Upper light and Start again Note Follow the sequence above by pressing each key individually If you push START TIMER UP LIGHT START button in order you can enter the test mode Its possible to enter the test mode after power is on And any keys should not be pushed even though LG Logo is disappeared on the screen Oven Select A On Off Control UPPER UPPER UPPER LIGHT OVEN START CLEAR OFF CONTROL LOCK TIMER LOWER ON OFF CLEAR OFF How to enter the Test Mode in the Main Mode 1 If you push Set Up Menu START HiddenKey 3 START button in order you can enter the test mode again 1 Select Set up from main menu 2 Press start then the 3 hidden keys from top to bottom then press start again Note Follow the sequence above by pressing each key individually 2 How to cancel the Test Mode Push Upper Clear Off Key under the Test Mode Main Menu El 2 00 pm Upper Oven E E Oven Select gt one Control UPPER UPPER i UPPER LIGHT OVEN Ma START CLEAR OFF TIMER LOWER ON OFF CLEAR OFF Copyright 2007 LG Electronics Inc All right reserved 2 2 LGE Internal Use Only Only for trai

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