30” Freestanding Electric Range SERVICE MANUAL
Contents
1. Exterior Height 36 cooktop 47 5 s backguard top Exterior Depth 25 11 16 Door 28 with handle Net weight Lbs Kg Power Rating LGE Internal Use Only 181 Ibs 82kg 48A 120 240 V 42A 120 208 V 1 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes USING YOUR RANGE GENERAL INFORMATION Rating Label Model numbers are recorded on the rating label Rating label is located on the lower front left corner of the oven frame It can be seen by opening the storage drawer or warming drawer Before ordering parts write down the correct 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 SA T D Broil element O ae Y Hidden bake element 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 p l lt i Broil element SA AS N Hidden bake element Copyright 2007 LG Electronics Inc All right reserved Only for training and se2. 2 Press pad to choose the desired setting B To turn on a dual surface unit Right Front Press ON OFF pad 2 Press the ELEMENT SIZE pad as needed to select the desired burner size Default size is 9 When first selected 12 size is ON The light above the ELEMENT SIZE pad indicates which size surface unit is on 2 Press 2 pad to choose the desired setting Note e Each time a pad is pressed a beep will sound e The power level decreases or increases by 0 5 from 9 0 through 3 0 by 0 2 from 3 0 through 1 0 e Lo is the lowest power level available e HS will appear when the unit is hot to touch C To set the warming zone control 1 Press ON OFF pad at the warming zone 2 Press pad to choose the desired setting h Note e Each time a pad is pressed a beep will sound e The controls for the warming zone allow for 5 different heat settings Lo Hi e HS will appear when the unit is hot to touch 1 SETTING THE CLOCK Desired Clock START CLEAR gt CLOCK gt OFF 2 START CLEAN OFF AND ON OFF PAD 1 Touch START pad to start oven 2 Touch CLEAR OFF pad to cancel a program during cooking or Erase during programming 3 Touch ON OFF pad to start or cancel the surface unit 3 TO TURN ON OFF THE OVEN LIGHT The oven light automatically turns ON when the Door is opened The oven light may also be Manually turn
3. 3 Raise the cooktop see page 3 4 for the procedure 4 To remove the door latch a Remove the two screws from the door latch and remove the latch 2 Screws Copyright 2007 LG Electronics Inc All right reserved 3 5 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE BROIL ELEMENT b Pull the element forward so that you can ae WARNING i access the terminals and ol the wires e DISCONNET power supply cord 2 Terminals 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 44 CAUTION e Be careful when you work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply going to the range 2 Open the oven door and remove the racks from inside the oven 3 To remove the broil element a Remove the 4 screws from the front and rear brackets 2 Upper bracket Screws a gt O MR Lo 2 i 2 Rear bracket Screws LGE Internal Use Only 3 6 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE HIDDEN BAKE ELEMENT 1 Unplug range or disconnect power 2 Pull the range out of its mounting location so that you can access the rear o
4. PCB e Defective Surface element e Low line voltage e Test and or replace PCB gt Refer to the page 6 1 6 3 e Verify power is present at unit e Verify that the circuit breaker is not tripped e Replace household fuse capacity e Check circuit breaker e Repair or replace wiring see wiring diagrams e Test and or replace element e Test and or replace PCB gt Refer to the page 6 4 6 6 e Verify all connections are clean and tight replace broken wires e Test and or replace cook top PCB gt Refer to the page 6 7 6 8 e Test and or replace element e Line voltage should be minimum 240 volts Of necessary electrician should repair cause for low line voltage Frequent cycling of surface This is normal e The element will cycle on and off to Element or warming zone maintain the heat setting e Defective cook top control PCB e Test and or replace cook top PCB HS Hot surface Warning message does not light up Oven light fails to operate Refer to the page 6 9 Oven does not begin clean cycle Oven stop for Self clean cycle Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes e Failed oven lamp e Circuit breaker or fuse is open e Loose or bad wiring e Defective light socket e Defective door switch e Bad wiring e Bad latch system e Programming error e Defective a point of contact with door switch 8 1 e Check lamp and Replace is necessary
5. PCB case assembly Copyright 2007 LG Electronics Inc All right reserved 5 1 LGE Internal Use Only Only for training and service purposes COMPOSITION OF CONTROL Main PCB P N 6871W1N002F Main function gt Supply a DC power source GND 5V 12V Vry oven heater switching Vdisp 5V Supply a DC power source GND 12V Vry cooktop heater switching voltage Oven heater control DLB Broil Bake Oven display control Cook top heater control Warmer zone RR LR RF LF Cook top display control Oven lamp door lock motor convection fan control Detecting oven temperature warming drawer temperature Buzzer sound control Key entry Door open close Door lock unlock detection Error mode detection and pop up Supervising hot cook top element Single Radiant Surface Elements Right Rear Left Rear Left Front on off power level relay switching Dual Radiant Surface Elements Right Front INNER OUTER on off power level relay switching Single Radiant Surface Elements Warming Zone Center Rear on off power level relay switching Supervising cook top element hot YYYY YV YV YV vV vV vV V vv v LGE Internal Use Only 5 2 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPOSITION OF CONTROL Cook top display PCB P N 6871W1N010G Main function Single radiant surface elements Right Rear Left Rear Left Front power level indication
6. Replace the broil heater Continued on the next page END LGE Internal Use Only 6 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes FAILURE MODE FLOW CHART Check for loose oven sensor connector Check the oven sensor measure the resistance after cooling down Normal approximately 1 09kQ END No Yes Replace the oven sensor Replace the oven relay PCB 012B END Yes Replace the main PCB 002F For further check of main PCB END Refer to the appendix A Copyright 2007 LG Electronics Inc All right reserved 6 6 LGE Internal Use Only Only for training and service purposes FAILURE MODE FLOW CHART No heating All or a part of cook top heaters Disconnect power Check for loose connection at board 002F PCB to cook top heaters NE e y e Reconnect lf defective harness replace or fix END Continued on the next page LGE Internal Use Only 6 7 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes FAILURE MODE FLOW CHART Remove the main PCB 002F harness and pull the main PCB 002F forward from the PCB case Inspect the main PCB 002F Wide pattern Live part blown out ray Yes Yes No Repair and fix END Replace the main PCB 002F END Copyright 2007 LG Electronics Inc All right reserved 6 8 LGE Internal Use Only Only for training and servi
7. Website http biz lgservice com LG 30 Freestanding Electric Range MODEL LSB5682SW LSB5682SB LSB5682SS CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL April 2008 P NO MFL38379705 Printed in Korea FORWARD This LG Service Manual 30 Freestanding Self Cleaning Electric Range provides the technician with information on the operation and service of the Freestanding Self Cleaning Electric Range 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 range 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 left side of warming drawer e The power supply of the appliance should be turned off when it is being repaired 4 WARNING e DISCONNET 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
8. For Jewish Holidays Twice 2 hour only Remember that the oven control will no longer 3 times 4 hour beep or display any further changes once the oven is set for the Sabbath feature START Desired START 12 BAKE TIMED BAKE DELAYED TIMED BAKE TIME start time BAKE Desired START temperature ae Desired time gt START START Desired TIME Dl start time START 13 BROIL BROIL once gt Hi gt START twice Low LGE Internal Use Only 2 4 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS This section instructs you on how to service each component inside the range The components and their locations are shown below COMPONENT LOCATIONS Circuit Breaker Main PCB Cook To Display i oe Appliance Outlet a N Door Locking Motor amp Micro Switch Surface Elements Door Latch Assembly HE a Door Switch Oven Sensor Oven Light O Convection Motor lt z Broil Heater Oven Relay PCB Copyright 2007 LG Electronics Inc All right reserved 3 1 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE BACK CONTROL COVER AND KEY MEMBRANE ASSEMBLY 4 Remove the 3 screws from the rear control cover a WARN I NG and remove the cover e DISCONNET power supply cord 5 Remove 6 scr
9. To remove the surface elements a Remove the wires from the element and limiter terminals b Remove the element bracket screw shown above for the element you are servicing d Carefully lift the bottom of the bracket just far enough to remove the element REASSEMBLY NOTE When you reinstall the element make sure that the wires are inserted into the correct tap then reinstall the bracket screw to secure it to the cooktop Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE DOOR LATCH amp DOOR SWITCH b Remove the door latch from the burner box and unhook the actuating rod 44 WARNING e DISCONNET 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 Unhook Actuating Rod 5 To remove the door switch a If not already done raise the cooktop dh CAUTION see page 3 4 for the procedure e Be careful when you work on the b Remove the door switch from the range electric range handling the sheet To do this squeeze tabs and use a ratchet metal part extension or a small socket and tap it out of Sharp edge may be present and you can cut the hole with a hammer yourself 1 Turn off the electrical supply going to the range 2 Open the oven door
10. e Check circuit breaker or replace fuse e Repair or replace wiring e Check light socket for continuity e Test and or replace door switch e Repair or replace wiring e Check door locking motor and micro switch e Shut off power to oven for five minutes by switching off circuit breaker Reset circuit breaker and try oven again e Test door switch and check the point of contact between door and door switch LGE Internal Use Only TROUBLE SHOOTING PROBLEMS POSSIBLE CAUSES amp FAULTS SOLUTIONS Electronic timer will not e Failed main power control board e Replace power control board PCB accept Programming Electronic timer will not e Failed main power control board e Replace power control board PCB accept Programming Clock and timer not working Power outage e Verify power is present at unit e Verify that the circuit breaker is not tripped Oven does not bake Selection is set for to BAKE or TIMED BAKE Oven does not Broil Overheating or runaway oven Oven door will not open or latch Premature burnout of bake element Oven door difficult to open LGE Internal Use Only e Loose or bad wiring e Defective BAKE element e Defective electronic clock e Door switch sensing error e Loose or bad wiring e Defective BROIL element e Defective Power Control Board e Loose or bad wiring to latch system e Defective Oven Sensor e Bad Power Control Board PCB e Defective latch mechanism
11. gt Dual radiant surface elements Right Front inner outer power level indication Dual radiant surface element size indication Right Front inner outer Single radiant surface elements warming zone Center Rear power level indication Oven relay PCB P N 6871W1N012B Main function Oven heater on off relay switching DLB Broil Bake Copyright O 2007 LG Electronics Inc All right reserved 5 3 LGE Internal Use Only Only for training and service purposes FAILURE MODE FLOW CHART No display No power Enter key input Some beep Check the thermal fuse sound See the page 3 1 Cook top display Check AC input voltage of Main PCB O blank Main PCB CNS pin 1 and 3 Go to page 6 3 Check voltage Main PCB 002F CN14 Pin 10 and 12 CN14 Pin 10 and 12 The voltage should a E DESIRE eth A 3 es E Main PCB 002B No Yes Replace the main PCB 002F Replace the cook top display PCB 010G END LGE Internal Use Only 6 1 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes FAILURE MODE FLOW CHART No display No power Enter key input No Check the thermal fuse See the page 3 1 Some beep sound Yes Oven display No Check AC input voltage of Main PCB O blank Main PCB CN3 pin 1 and 3 Go to page 6 3 Replace the main PCB 002F Copyright O 2007 LG Electronics Inc All right reserv
12. MOTO saree dia sete setae ec cee dei in di ir 4 1 e Door locking elle ree ee psi en et er ee eee ee ee ere eee 4 2 e Micro Switch normally open type lts ippo sa cesos 4 2 OL eia a e a a A a a a a a 4 2 Oven SEnSoOr ess A A ee ee ee ee 4 3 e DOO SWITCH Me is ii er ee ee re ee eee 4 3 Broil elemei sa es sess aes rs gsc sess sec ee et ee eres See eee eee tenes 4 3 Bake element lt AAA cases aces 4 3 e Oven lamp o A o o uo ceaceseeweeceuuet 4 4 Single surface unit RF LR RR EN E AE E E A AA 4 5 Warming Zone CR nseni nerra A PP u a a 4 6 e Dual surface unit LF E E E ee oe ce Sc eee ie eee ee ek Se tee seer ee E en ceseeeee 4 7 COMPOSITION OF CONTROL ossccscsccnncnnncancunnensnenneecnanonenseeneonenenauenuanen 5 1 5 4 a clam POB ee ee eer ee er ee ee ee ee eee ee ee 5 2 Cook top display a a q gg A ee ee ere 5 3 e Oven relay PO spe A ee ee ee ere ree ee ee 5 3 FAILURE MODE FLOW CHART cvvsseccssecteseeeeeeeeeeeeeaceeecaeeeenegeeeneaseeseageeens 6 1 6 11 eNo display No power on A ee ob ee A E enews A E ee eeec ese 6 1 6 4 Oven GOSS NOL Neal estirsrssarasicnionals riscos SA 6 5 6 7 Cook top does not ioc Me sinda essin is aia 6 8 6 9 e Oven lamp does not operate A gq EE 6 10 e No key input POP Ro o o In nn see See o O ceseccete 6 11 FAILURE CODES lt gt 0 0 00 00000 000mmmccrcorocococoroorooococoron scan ronorana co ronorananansonasas 7 0 ECODE FLOWCHART assi 7 1 7 10 DE a Ge ee ee T 7 1 e F 2 BOF e
13. SELF CLEANING OVEN SENSOR base l pre TSO DOOR LOCK SWITCH E RY2 DOOR MOTOR eLo CLOCK DISPLAY ON LGE Internal Use Only 9 3 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes CONV BAKE CONV ROAST BAKE HEATER CR Warming Zone RY11 WARMING ZONE 9 d RR Cook top Element Copyright 2007 LG Electronics Inc All right reserved 9 4 LGE Internal Use Only Only for training and service purposes LR Cook top Element LR COOKTOP RF Cook top Element LF Cook top Element AY do RF 12 COOKTOP RY16 RF 9 COOKTOP LGE Internal Use Only 9 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV EXPLODED VIEW INTRODUCTION I For Model LSB5682SW LSB5682SB CONTROLLER PARTS DOOR PARTS CAVITY PARTS DRAWER PARTS Copyright 2007 LG Electronics Inc All right reserved 10 1 LGE Internal Use Only Only for training and service purposes EV DOOR PARTS I For Model LSB5682SW LSB5682SB Copyright 2007 LG Electronics Inc All right reserved 10 3 LGE Internal Use Only Only for training and service purposes EV CONTROLLER PARTS For Model LSB5682SB ee eee LGE Internal Use Only 10 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service pur
14. THE LIFT OFF OVEN DOOR Aa CAUTION To replace the door Be careful when removing and Ca lifting the door Firmly grasp both sides of the door e DO NOT lift the door by the handle at the top Failure to do so can result in personal injury as the door is very heavy To remove the door With the door at the same angle as _Step 1 the removal Fully open the door position seat the indentation of the hinge arm into the bottom edge of the hinge slot The notch in the hinge arm must be fully seated into the bottom of the slot Pull the hinge locks down toward Fig 1 the door frame to the unlocked position Fully open the door If the door will not fully open the indentation is not seated correctly in the bottom edge _Step 3 of the slot Step 4 Push the hinge locks up against the front frame of the oven cavity to the locked position Close door to the door removal position which is approximately 5 degrees refer to the Fig 2 Step 5 lt Fig 2 gt Step 5 Lift door up and out until the hinge arm is clear of the Close the oven door slot Copyright O 2007 LG Electronics Inc All right reserved 3 13 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN DOOR HANDLE amp GLASS 5 Lift the liner assembly off the front glass and set WARNING it aside e DISCONNET power supply cord 6 To remove the door handle amp trim for
15. couldn t find any problem Replace Control PCB A Perform step 1 through 2 above DISPLAY CAUSE CORRECTIVE ACTION SHOWS F7 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 F Failure DISPLAY CODES Before doing any action perform the following step1 3 B placa amadas and Disconnect Step1 Unplug range or disconnect power Measure Q value between connector pins Step2 Check if connector is fully seated or not approximately 1090 Q at room temperature Note All units in the first few days of use should be 77F 25 C gt if there is any problem Replace oven sensor C Check the bake and broil relay refer to the strip circuit section STRIP CIRCUITS D If there is any problem Replace Control PCB checked for mis wiring or loose connections DISPLAY CAUSE CORRECTIVE ACTION A Perform step 1 through 2 above B Replace keypad or keypad assembly if F code recur go to C after unplugging or disconnecting C Replace Control PCB assembly A Perform step 1 through 2 above B Check wire and connections from control to latch C If motor operate check integrity of latch mechanism check the micro switch refer to component test section check integrity of door locking mechanism D If motor didn t operate check continuity of the latch motor and electrical co
16. range handling the sheet metal part Sharp edge may be present and you can cut yourself Oven i Relay PCB 1 Turn off the electrical supply going to the range 2 Pull the range away from the wall so that you can access the rear panel 3 Remove back cover amp control cover See step 5 To remove the control power supply 3 4 on page 3 2 a Disconnect 2 connectors b Remove the two screws 2 Connector e e ke SS f E ail ej 2 Screws Copyright O 2007 LG Electronics Inc All right reserved 3 3 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE SURFACE ELEMENTS AND THE CERAMIC GLASS COOKTOP 44 WARNING e DISCONNET 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 CERAMIC GLASS COOKTOP REMOVAL ED Unplug the cord or disconnect power Open oven door and remove the 3screws located at the front of the cook top then close the door Lift up the cooktop front and Remove the ground screw securing ground wire Slightly lift up and pull up the cook top and then unplug the 2 connectors at the back by squeezing side tabs 2 Connectors LGE Internal Use Only Protect the cooktop surface and turn the assembly over Bracket screws
17. All right reserved 3 9 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE LATCH DRIVE ASSEMBLY 44 WARNING e DISCONNET 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 44 CAUTION e Be careful when you work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply going to the range 2 Pull the range away from the wall so that you can access the rear panel 3 Remove the back cover amp control cover see step 3 4 on page 3 2 4 Disconnect the wires from the latch drive motor and switch 5 Remove the two mounting screws from the latch drive SCrews SCrews ES Y 6 Unhook the Latch rod from the cam LGE Internal Use Only DOOR LOCKING MECHANISM The door lock assembly is located at the back side of range The structural elements are as below 1 When the oven control is programmed and started for the Self clean and Lock out mode PCB Power control board chip operates the motor Latch ROD CAM MICRO SWITCH 2 The cam moves the door hook connected to latch rod from unlocked position to locked position from locked Position to unlocked position 3 The cam activates the micro switch t
18. CTION ROAST PAD Press to select useful for rising yeast leavened products roasting with the convection function 14 SELF CLEAN PAD Press to select self cleaning 5 NUMBER PADS Use to set any function requiring function See the using the Self Cleaning Oven numbers such as the time of day on the clock the section timer the oven temperature the start time and 15 OVEN LIGHT PAD Press to turn the oven light on length of operation for timed baking or off 6 START PAD Must be pressed to start any cooking 16 DISPLAY or cleaning function 7 CLEAR OFF PAD Press to cancel all oven A Single surface units operations except the clock and timer Right Rear Left Rear Left Front 8 CLOCK PAD Press before setting the time of day 9 TIMER ON OFF PAD Press to select the timer m Dual surface unit Right Front feature C Warming Zone Center Rear 10 COOK TIME PAD Press and then use the number pads to set the amount of time you want your food to cook The oven will shut off when the cooking time has run out 11 START TIME PAD Use along with BAKE CONV BAKE CONV ROAST COOK TIME and SELF CLEAN pads to set the oven to start and stop automatically at a time you set LGE Internal Use Only 2 2 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes USING YOUR RANGE A To turn on a single surface unit Right Rear Left Rear Left Front Press ON OFF pad for the desired element h
19. K amp WARM pad for 3 seconds 2 Press 5 pad once for ON or 5 pad twice for OFF 3 Press START pad LGE Internal Use Only USING YOUR RANGE 10 THERMOSTAT ADJUSTMENT 14 CONVECTION BAKE The oven temperature can be adjusted from CONV Desired 35 F 19 C to 35 F 19 C BAKE Temp o START Note The thermostat adjustments made with this feature will just change Bake Convection Bake and Convection 15 CONVECTION ROAST Roast temperature l CONV Desired START To increase the oven temperature ROAST gt Temp 1 Press and hold BAKE pad for 3 seconds 2 Press the desired temperature 16 COOK amp WARM 3 Press START pad To decrease the oven temperature en gt START 1 Press and hold BAKE pad for 3 seconds 2 Press the desired temperature 3 Press the BAKE pad once 17 OVEN LOCKOUT 4 Press START pad Press and hold the START pad for 3 seconds 11 SABBATH MODE to activate or reactivate LOCKOUT 1 Set the BAKE or Timed BAKE Delay Timed Bake 2 Press START pad 18 PROOF 3 Press and hold the BROIL pad for 3 seconds 4 Press START pad PROOF meoo START To Cancel SABBATH mode 1 Press and hold BROIL pad for 3 seconds 19 SELF CLEAN 2 Press START pad Note You may change the oven temperature once baking has SELF CLEAN START started Press BAKE enter the oven temperature change Once 3 hour 170 to 550F and press START
20. LECTRIC RANGE AC ONLY 3WIRE 1PHASE 60Hz MODEL NO LRE30755SB ERIALNO 512KMXY00002 MANUFACTURED December 2005 Tech Sheet Location be _ On Low Rear Cover Copyright O 2007 LG Electronics Inc All right reserved 1 4 LGE Internal Use Only Only for training and service purposes GENERAL SPECIFICATIONS Model Number LSB5682SW LSB5682SB LSB5682SS Overall Width 30 Installation type Freestanding Color availability WH BK STS Control Oven Cooktop Display Electronic clock amp timer Control lock capability Audible preheat signal Special function 1 Clock 12hr 24hr 2 Temperature unit F C 3 Beeper Volume High Low Mute 4 Smart oven light On Off 5 Convection auto conversion on off 6 Thermostat Adjustment 7 Sabbath mode Cooktop Material Ceramic glass of element 5 Power 6 1 200 6 1 200 warming zone 9 2 500 Dual 9 12 1 700 2 700 Oven Capacity cu ft 5 6 Broil element 4000 watt Bake element 3400 watt Convection System Yes Convection element No of Racks 2 standards Interior oven light 120 V 40Watt Proof Yes Cook amp warm Yes Favorites No Door lockout Yes Broiler pan Type Yes Storage drawer Element Dimensions Warming rack Oven Interior W x H x D 24 1 2 x 20 1 4 x 19 3 8 inch Exterior Width 29 7 8
21. Touch when the oven operates The interior parts will be very hot LG Electronices 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 CENER A iterates eres ete sec er erect erm ras 1 1 1 4 Important safety Telidelelle ieee eee eto eer ere a te ee eee ser eer err eer rr 1 1 a 1 2 e Model 4 Serial number label and tech sheet locations cece cece cece e eee eee eee e eens 1 3 e Specifications Gadi edeaGe dca dae E A ad aaa 1 4 USING YOUR RANGE surcos aaraa tie 2 1 2 5 General MOMO sees a ee ee eee eee 9 1 e Control panel A O ssexeaaeroeseess anaes 2 2 2 5 To turn on a single surface unit Right Rear Left Rear Left Front To turn on a dual surface unit Right Front To set the warming zone controlTo set the warming zone control Clock Start Clean Off and On Off pad Oven light Timer On Off Convection auto conversion Thermostat adjustment Preheating alarm light On Off Beeper volume Temperature unit F or C Bake Timed Bake Delayed timed Bake Broil Convection Bake Convection Roast Cook amp Warm Oven lockout Changing hour mode on clock 12HR 24HR Proof Self Clean Warming drawer COMPONENT ACCES Selectors eee eee 3 1 3 17 e Component FOC
22. ain PCB 002F Copyright 2007 LG Electronics Inc All right reserved 7 1 LGE Internal Use Only Only for training and service purposes F CODE FLOW CHART Door lock system error F 2 error Code Error mode Operation Times sampling F 2 Door Lock Fail In case of Door Lock Failure 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 the F 2 error code appears Door lock failed Check for loose connection on the micro switch and the door locking motor Check the oven door lock switch micro switch measure the resistance Normally open type END Continuity Infinite Continued on the next page LGE Internal Use Only 7 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes F CODE FLOW CHART Replace the micro switch Check the door locking motor measure the resistance normal approximately 2 6kQ abnormal infinite or below 5 Q Replace the door locking motor Check for loose connector Front main PCB CN4 l Front END ma t L AOS Reconnect R th in PCB 002F h emove the main PCB 002F harness END and pull the PCB 002F forward from the PCB case Copyright 2007 LG Electronics Inc All right reserved 7 3 LGE Internal Use Only Only for training and s
23. alONS stas da A re AA ee er peer ee ee ee 3 1 e Removing the Back Control cover and Key membrane Assembly s 2 ereetereteeret steer eee 3 2 e Removeing the Control Power Supply and Power Control Board PCB rorercrrononconanoninnononono 3 3 e Removing the Surface Element and the Ceramic Glass Cooktop 2 erereereeee tees ee eee 3 4 Removing the Door Latch and the Door SWitGi 9 562 a68esetcencstscectncencencdenccescetteeussesaddcerastecsenses 3 5 Removing me BROIL elemenl e asis cic ces ii AEEA a e 3 6 Removing the BAKE ala Menta A 3 7 Removing the CONVECTION Fan blade and Fan motor eet tect teens 3 8 Removing the Oven light amp Socket assembly A 3 9 Removing the latch drive assembly Geach E E I T T A E AN E A A N AA S E 3 10 a Door locking mechanism A II A ee cece eee ee eeeee 3 1 0 Removing the Oven temperature GONSO m 2 nt AA AAA 3 11 o Removing the storage A o 0 A 3 12 Removing amp Replacing me Litol Oven DOOF e ee eee 3 13 Removing the Oven Door Handle Glas lt stest6 ctecencencaccecntsessiecarescecesicecnniecosd ecnanesese 3 14 3 15 Removing the Oven Door GASKOI sssciscsecsnenececcsccvenesecestnetecinte id AAA 3 16 0 Removing Side Pa ales a A A AA AR AAA 3 17 LGE Internal Use Only Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes Page COMPONENT TES Tuacnaiioniciaiina tica 4 1 4 7 CONVECTION
24. ant e DISCONNET power supply cord X MEW 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 44 CAUTION Be careful when you work on the 8 Pull the back of the side panel out from the range electric range handling the sheet approximately 10 metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply going to the range 2 Remove the oven door from the range see page 3 13 for the procedure 3 Pull the range away from the wall so you can access the back of the unit 4 Remove the 16 screws from the rear panel and remove the panel see step 3 4 on page 3 2 5 Raise the cooktop see page 3 4 for the procedure NOTE Position the side of the cooktop so that it does not rest on the side panel that you are removing 6 Remove the two screws from the top rear of the side panel 9 Push forward and remove the side panel Copyright O 2007 LG Electronics Inc All right reserved 3 17 LGE Internal Use Only Only for training and service purposes COMPONENT TEST Before testing any of 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 ALL units i
25. ce purposes FAILURE MODE FLOW CHART Oven lamp does not operate Oven lamp does not operate Disconnect power Check for loose connection of oven lamp terminal and harness Reconnect If defective harness replace or fix Reconnect Replace the oven lamp Yes y the main PCB 002F Check the oven lamp measure the resistance Normal below 5Q Abnormal infinite Infinite LGE Internal Use Only 6 9 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes FAILURE MODE FLOW CHART No key input Key does not input Reconnect the main PCB connector EDAD ARA CN10 and CN11 more than two times 17 1d 1 PAR AOI 1 Ie END No Some keys or All keys Replace the main PCB Yes No END Replace the keypad assembly END Copyright 2007 LG Electronics Inc All right reserved 6 10 LGE Internal Use Only Only for training and service purposes FAILURE CODES e DISCONNET power supply cord from the outlet before servicing A Perform step 1 through 2 above B Open the back panel and check continuity of the sensor heater bake broil and Control PCB C Check the bake and broil heater refer to component test D Disconnect sensor from harness Measure Q value between connector pins of oven sensor Measure 2 value between sensor chassis and any connector pins Q value should read OPEN gt if there is any problem Replace oven sensor E If you
26. d the heat Damaged oven door gasket e Improper Self clean e Do not use harsh abrasives or scouring pads See Owner s manual intructions Oven racks fit too tight e Racks were cleaned in self clean Apply a small amount of vegetable oil to a cycle paper towel and wipe the edges of the oven racks with the paper towel Do not spray with pam or other lubricant sprays e Tolerance buildup in oven liner e Notify customer Assurance department Oven smokes odor first few This is normal e Minor smoking or odor is normal for the times of usage first few tikes of oven usage e Ventilate area well and perform self clean cycle Excessive smoking during a Excessive soil e Press the CLEAR OFF pad Open the Self clean cycle windows to rid the room of smoke Wait until the Self Clean cycle is cancelled Wife up the excess soil and reset the clean Convection fan make a e A convection fan may e Low level noise is normal noise automatically turn on and off Low level noise is normal e Loose nut of convection fan e Re fasten the nut e Deformed convection fan e Replace the convection fan Failures Codes e Electronically controlled e Refer to Failure codes parts page 7 0 7 8 Oven temperature too hot e Oven sensor needs to be adjusted See the adjusting your oven temperature or too cold in owners manual Copyright 2007 LG Electronics Inc All right reserved 8 3 LGE Internal Use Only Only for training and service purpo
27. e 150 F the meter Above 150 F should indicate continuity 0 Q gt continuity 0 2 Copyright O 2007 LG Electronics Inc All right reserved 4 6 LGE Internal Use Only Only for training and service purposes Dual surface element 1 Refer to page 3 4 for the servicing procedure Left Front LF 2 Set the Multiple meter scale to the R x1 3 Disconnect wires from cook top elements 4 Touch the ohmmeter test leads to the E1 amp 1A and E2 amp 1A the meter should indicate E1 amp 1A gt 32 Q 10 E2 amp 1A gt 55 Q 10 Normal Approximately 32 Q Normal Approximately 55 Q 5 Touch the ohmmeter test leads to limiter terminals 1A and 2A the meter should indicate atinui O ae continuity 0 Normal continuity below 0 5 Q If not replace 6 Touch the ohmmeter test leads to limiter Below 150 F terminals 1B and 2B gt open circuit infinite With the temperature below 150 F the meter should indicate an open circuit infinite i With the temperature above 150 F the meter Above 150 j should indicate continuity 0 Q gt continuity 0 Q LGE Internal Use Only 4 7 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPOSITION OF CONTROL Main PCB P N 6871W1N002F Front Controller assembly Cook top display PCB P N 6871W1N010G Key pad assembly Oven relay PCB P N 6871W1N012B Front Y e B E
28. e Defective bent door latch lever e Oven is still hot Cool down period after self clean cycle not complete e Improper use of oven e g being used to heat the home e Worn or broken broil stop roller e Replace household fuse but do not fuse capacity e Refer to Owner s manual instructions e Verity all connections are clean and tight replace broken wire e Test and or replace BAKE element e Replace power control board PCB e Test door switch and check the point of contact between door and door switch e Verity all connections are clean and tight replace broken wire e Test and or replace BAKE element e Replace power control board PCB e Repair or replace wiring e Test and or replace Oven Sensor e Test and or replace PCB e Replace door latch system e Replace latch lever e This is normal Wait until LOCK icon goes out e Use oven for baking only e Replace oven door hinge Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes TROUBLE SHOOTING Oven door sagging on one Hinge loose or out of position to e Adjust hinges or replace hinges side oven liner Door does not close e Broken or misadjusted door spring Adjust or replace hinges completely at top e Door fits too tight at bottom e Adjust hinges outward Door glass breaks e Oven racks covered with foil e Do not cover racks with foil e Glass installed backward e Install tempered glass towar
29. ed 6 2 LGE Internal Use Only Only for training and service purposes FAILURE MODE FLOW CHART No display No power D Check the harness of between L1 N No Yes Yes A ee No Replace the defective harness Check the power transformer Refer to the below Secondary Primary black white 25 28 yellow yellow 1 0 1 3 measure LVT coil resistance S2 red red 1 8 2 1 Normal approximately Fig1 Replace the power transformer Replace the Main PCB 002F END LGE Internal Use Only 6 3 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes FAILURE MODE FLOW CHART Oven does not heat F 7 No heating If current oven temperature does not exceed 150 F and During cook less than start temperature over 5 minutes on preheating where door is closed except proof and cook amp warm No Heating Main Oven Disconnect power Check for loose connections at bake broil convection heater terminal and harness Reconnect If defective harness replace or fix Check the bake heater measure the resistance after cooling down Normal approximately 170 Continued on the next page Copyright O 2007 LG Electronics Inc All right reserved 6 4 LGE Internal Use Only Only for training and service purposes FAILURE MODE FLOW CHART No Replace the bake heater Check the broil heater measure the resistance after cooling down Normal approximately 14Q
30. ed ON or OFF by pressing the OVEN LIGHT pad Note The oven light cannot be turned on if self clean feature is active Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 2 3 4 TIMER ON OFF TIMER Desired TIMER ON OFF time ON OFF To cancel timer at any time touch TIMER ON OFF pad Note 1 If you press TIMER ON OFF pad once it allows you to make a second unit of timer setting for example 1f you press 5 and 6 1t means 56 seconds 2 If you press TIMER ON OFF pad twice it allows you to make a minute unit of timer setting for example if you press 5 and 6 1t means 56 minutes 5 CHANGING HOUR MODE ON CLOCK 12HR 24HR Press and hold the COOK amp WARM pad for 3 seconds Press 1 pad once for 12 hour 1 pad twice for 24 hour STARI 6 TEMPERATURE UNIT F or C 1 Press and hold COOK amp WARM pad for 3 seconds 2 Press 2 pad once for F or 2 pad twice for C 3 Press START pad 7 BEEPER VOLUME 1 Press and hold COOK amp WARM pad for 3 seconds 2 Press 3 pad once for Beep Hi Press 3 pad to switch beeper volume HI LO OFF 3 Press START pad 8 PREHEATING ALARM LIGHT ON OFF 1 Press and hold COOK amp WARM pad for 3 seconds 2 Press 4 pad once for ON or 4 pad twice for OFF 3 Press START pad 9 CONVECTION AUTO CONVERSION 1 Press and hold COO
31. erminal and 1A The meter should indicate 46 Q 10 Element 18 i terminal y Normal Approximately 46 Q If not replace 5 Touch the ohmmeter test leads to limiter terminals 1A and 2A The meter should indicate continuity 0Q Normal continuity below 0 5 Q If not replace 6 Touch the ohmmeter test leads to limiter Below 150 F terminals 1B and 2B open circuit infinite With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter Above 150 E should indicate continuity 0Q gt continuity 0 2 4 5 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes Center Rear CR 1 Refer to page 3 4 for the servicing procedure Element 2 Set the Multiple meter scale to the R x 1 Warming Zone 3 Disconnect wires from CR elements 4 Touch the ohmmeter test leads to the element terminal and 1A The meter should indicate 565 Q 10 Element terminal Normal Approximately 565 22 If not replace 5 Touch the ohmmeter test leads to limiter terminals 1A and 2A the meter should indicate continuity 0 Q Normal continuity below 0 5 Q If not replace 6 Touch the ohmmeter test leads to limiter Below 150 F terminals 1B and 2B open circuit infinite With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature abov
32. ernal Use Only 1 3 SELF CLEAN OVENS e Do Not Clean Door Gasket The door gasket is essential for a good seal Care should be taken not to rub damage or move the gasket 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 Clean in the self clean cycle only parts listed in this manual Before self cleaning the oven remove the broiler pan and any utensils from the oven 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 e Important Instruction In the event the self clean mode F code goes on or three long beeps sound oven is malfunctioning in the self clean mode Turn off or disconnect appliance from power supply and have serviced by a qualified technician VENTILATING HOODS e Clean Ventilating Hoods Frequently Grease should not be allowed to accumulate on hood or filter e When flaming foods under the hood turn the fan on OVEN e Use Care When Opening Door Let hot air or steam escape before you remove or replace food in the oven 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 is located above the left rear surface u
33. ersized utensils will expose a portion of the heating element to direct contact and may result in ignition of clothing Proper relationship of utensil to burner will also improve efficiency Never Leave Surface Units Unattended at High Heat Settings Boil overs may cause smoking and greasy spillovers may ignite e Make Sure Reflector Pans or Drip Bowls Are in Place Absence of these pans or bowls during cooking may subject wiring or components underneath to damage e Protective Liners Do not use aluminum foil to line surface unit drip bowls or oven bottoms except as suggested in the manual Improper installation of these liners may result in a risk of electric shock or fire e Glazed Cooking Utensils Only certain types of glass glass ceramic ceramic earthenware or other glazed utensils are suitable for range top service without breaking due to the sudden change in temperature e Utensil Handles Should Be Turned Inward and Not Extend Over Adjacent Surface Units To reduce the risk of bums ignition of flammable materials and spillage due to unintentional contact with the utensil the handle of a utensil should be positioned so that it is turned inward and does not extend over adjacent surface units Do Not Soak Removable Heating Elements Heating elements should never be immersed in water e Be sure you know which control pads operate each surface unit Make sure you turned on the correct surface unit LGE Int
34. ervice purposes F CODE FLOW CHART Inspect connector pin solder of CN4 Back main PCB CN4 x If pin solder is cracked repair and re use Yes LGE Internal Use Only 7 4 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes F CODE FLOW CHART Main oven sensing error F 3 F 4 error Opened Sensor Oven Thermistor remains open for over During cook 1 min after cook starts Shorted Sensor Oven Thermistor is short for over 1 min During cook after cook starts Main oven sensing failed Check for loose oven sensor connector Reconnect Check the main oven sensor measure the resistance after cooling down Normal approximately 1 09kQ END Replace the main oven sensor Continued on the next page Copyright 2007 LG Electronics Inc All right reserved 7 5 LGE Internal Use Only Only for training and service purposes F CODE FLOW CHART Main oven sensing error F 3 F 4 error Check for loose connector Front main PCB CN6 Yes Check for loose connector main PCB CN6 and look for harness terminals damaged or not No Reconnect and replace the bad harness Yes Remove the main PCB 002F harness END and pull the PCB 002F forward from the PCB case Inspect connector pin solder of CN6 Back main PCB CN6 x If pin solder is cracked repair and re use Yes END END LGE Internal Use Only 7 6 Copyright O 2007 LG Elec
35. ews of PCB assembly and separate from the outlet before servicing pie eee e Replace all panels and parts before 6 Remove 9 screws of KEY Membrane assembly and operating separate PCB assembly e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock 44 CAUTION e Be careful when you work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply going to the range 2 Pull the range away from the wall so that you can access the rear panel 3 Remove the 16 screws from the rear panel and KEY MEMBRANE Assembly remove the panel FS ES EY Control Cover _ Back Cover LGE Internal Use Only 3 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE CONTROL POWER SUPPLY AND POWER CONTROL BOARD PCB 4 There are 3 PCB s power control board When ae WARNING you check PCB check the proper pcb in default heck mai e DISCONNET power supply cord mee call from the outlet before servicing e Replace all panels and parts before NOTE Refer to the page 5 1 5 3 for composition of control board operating vee e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock 44 CAUTION e Be careful when you work on the electric
36. f the unit 3 Remove the rear panel from the unit See step 3 on page 3 2 for procedure E E EE Hidden bake element bf power cord assembly box and 1 ground screw 5 Set the box aside 6 Cut the 9 points of flange and remove the bake heater cover Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 7 Bend the insulation glass fiber up 8 Remove two screws and bend up two flanges Flanges 9 Carefully pull the hidden bake element and its mounting bracket out of the range 1 Drive the two screws LGE Internal Use Only COMPONENT ACCESS REMOVING THE CONVECTION ELEMENT FAN BLADE AND FAN MOTOR 1 Disconnect power and remove oven racks 7 To remove Fan motor assembly disconnect 2 Pull the range out of its mounting location so that wire connection and remove the three bracket you can access the rear of the unit SCrews 3 Remove the rear panel from the unit 8 Pull the fan motor assembly forward See step 3 4 on page 3 2 for procedure 4 Disconnect the wire connection Fan blade Support Fan motor Fan cover 5 Remove the four Fan cover screws and set the A ioni P u fan cover aside e 3ea l Cavity Inner Outer 6 To remove Fan blade remove Nut by screwing clockwise Fan blade can be replaced from inside oven 44 CAUTION Be careful not to bend the fan blade Failure to do so can result in
37. hat causes the motor to stop 4 The locked status remains until the range temperature drops to approximately 500F after end of the self clean or lock out feature is reactivated The motor operates to unlock door at that time Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN TEMPERATURE SENSORS 5 To remove an oven temperature sensor a WARNING disconnect the connector from the main harness e DISCONNET power supply cord from the outlet before servicing e Replace all panels and parts before and remove the two mounting screws in oven cavity operating e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock Screws 44 CAUTION e Be careful when you work on the electric range handling the sheet Main oven Sensor metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply going to the range 2 Open the oven door and remove the racks from the oven 3 Pull the range away from the wall so that you can access the rear panel 4 Remove the 16 screws from the rear panel and remove the panel see step 3 on page 3 2 Main oven Sensor connector Copyright O 2007 LG Electronics Inc All right reserved 3 11 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE STORAGE DRAWER To Re
38. he resistance after cooling down If not replace Multiple meter scale R x1 NOTE Q Value was tested at room temperature 77F 25 C Be careful the element is sensitive to temperature LGE Internal Use Only 4 3 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Appliance outlet 1 Test for voltage Normal Approximately 120V 2 If no voltage is present at outlet Press the switch of located on the control console NOTE The circuit breaker for the appliance outlet is rated for 15A That may trip if the appliance plugged into it exceeds 15amps To reset the circuit breaker press the circuit breaker switch Appliance outlet 1 If no voltage is present at outlet circuit breaker 1 Unplug the cord or disconnect power 2 Remove the back cover refer to the page 3 2 3 Test the circuit breaker resistance Normal Below 1 Q If not replace Oven lamp 1 Measure the resistance after cooling down Normal Below 5 Q Multiple meter scale R x1 If not replace Copyright O 2007 LG Electronics Inc All right reserved 4 4 LGE Internal Use Only Only for training and service purposes Single surface units Right Front RF Left Rear LR and Right Rear RR Element LGE Internal Use Only 1 Refer to page 3 4 for the servicing procedure 2 Set the Multiple meter scale to the R x 1 3 Disconnect wires from cook top elements 4 Touch the ohmmeter test leads to the element t
39. is reassembled 8 To remove the oven door glass assembly a Remove both hinge hangers see step 8 b Remove the 6 screws c Lift the insulation cover off the door liner Copyright 2007 LG Electronics Inc All right reserved 3 15 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN DOOR GASKET 3 Pull the ends of the gasket out of the liner holes 44 WARNING ette e DISCONNET 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 REASSEMBLY NOTE When you install the new he CAUTION gasket make sure that all of the clips are seated in their liner holes and that the ends of the gasket are Be careful when you work on the pushed fully into their holes Use the pointed end of electric range handling the sheet a pencil to push the gasket ends into the holes metal part Sharp edge may be present and you can cut yourself 1 Open the oven door to its fully down position 2 Pull the oven door gasket clips out of the liner holes until all of the clips are removed LGE Internal Use Only 3 16 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING A SIDE PANEL 7 Remove the two screws from the left or right side 4 WARNING
40. n should not be left alone or unattended in area where appliance is in use They should never be allowed to sit or stand on any part of the appliance e Never Use Your Appliance for Warming or Heating the Room Storage in or on Appliance Flammable materials should not be stored in an oven or near surface units Be sure all packing materials are removed from the appliance before operating it Keep plastics clothes and paper away from parts of the appliance that may become hot e Wear Proper Apparel Loose fitting or hanging garments should never be wom while using the appliance Do Not Use Water on Grease Fires Turn off oven to avoid spreading the flame Smother the fire or flame by closing the door or use dry chemical baking soda or foam type extinguisher e Use Only Dry Potholders Moist or damp potholders on hot surfaces may result in bums from steam Do not let potholder touch hot heating elements Do not use a towel or other bulky cloth 44 WARNING e DISCONNET 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 SURFACE COOKING UNITS e Use Proper Pan Size This appliance is equipped with one or more surface units of different sizes Select utensils having flat bottoms large enough to cover the surface unit heating element The use of und
41. n the first few days of use should be checked for mis wiring or loose connections 1 All tests checks should be made with a VOM or DVM having a sensitivity of 20 000 ohms per volt DC or greater 2 Check all connections before replacing components looking for broken or loose wires Failed terminals or wires not pressed into connectors far enough 3 Resistance checks must be made with power cord unplugged from outlet and with wiring harness or connectors disconnected 4 WARNING e Disconnect power supply cord from the outlet 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 the servicing procedure Normal Approximately 2 Measure the resistance 33 5 Q 10 Multiple meter scale R x 1 If not replace Abnormal Infinite open below 5Q 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 the servicing procedure Normal Approximately 2 Measure the resistance Multiple meter scale R x 1000 2 6 kQ 10 If not replace Abnormal Infinite open below 5Q shorted Micro Switch 1 Refer to page 3 10 for the servicing proced
42. nit this area could become hot during oven use Never block this vent and never place plastic or heat sensitive items on vent e Placement of Oven Racks Always place oven racks in desired location while oven is cool If rack must be moved while oven is hot do not let potholder contact hot heating element in oven e Do Not allow aluminum foil or meat probe to contact heating elements GLASS CERAMIC COOKING SURFACES e Do Not Cook on Broken Cook Top If cook top should break cleaning solutions and spillovers may penetrate the broken cook top and create a risk of electric shock Contact a qualified technician immediately e Clean Cook Top With Caution If a wet sponge or cloth is used to wipe spills on a hot cooking area be careful to avoid steam burn Some cleaners can produce noxious fumes if applied to a hot surface DEEP FAT FRYERS e Use extreme caution when moving the grease kettle or disposing of hot grease Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes GENERAL MODEL amp SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS The Model Serial Number label and Tech Sheet locations are shown below Aa Bs 3 Model amp Serial Number Location 120 208V 9 7 KW LG Electronics Inc 391 2 KAEUMJEONG DONG CHANGWON CITY KYUNGSANGNAM DO KOREA P No 4140W1Ni o 010B G FOR USE ON 120 240V OR 120 208V 120 240V 12 7 KW HOUSEHOLD E
43. nnections if the wiring is bad replace the harness if the wiring is good replace the door motor assembly if F code recur replace control A Perform step 1 through 2 above B Open the back panel and check continuity of the sensor and Control PCB C Disconnect sensor from harness D Measure 2 value between connector pins Approximately 1090 2 at room temperature 77F 25 C Measure value between sensor chassis and any connector pins Q value should read OPEN gt if there is any problem Replace oven sensor E If you couldn t find any problem Replace Control PCB LGE Internal Use Only 7 0 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes F CODE FLOW CHART Key short error F 1 error OFO Key shorted If a key pad is continuously short for 60 seconds MI Key short error F 1 Plugged out the power remove keypad tail and check F 1 error recur or not after plugging in the power Yes he M Mo A q deal i l al _ _ Replace keypad or keypad assembly Remove the main PCB 002F harness and pull the PCB 002F forward from the PCB case Inspect main PCB connector CN11 pin to pin short Back Front o Back w uem o lt gt A Vj DIAN a Le mn n Fe Sy A f IALL da da dy dx vee 299 TETTE a Yes alles gt Repair and fix by yourself No Replace the m
44. packed with range The range could be tipped and injury might result from spilled hot liquid food or the range itself If the range is pulled away from the wall for cleaning service or any other reason ensure that the Anti Tip Device is properly reengaged when the range is pushed back against the wall e DISCONNET 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 heating elements or interior surfaces of oven Heating element may be hot even though they are dark in color Interior surfaces of an oven become hot enough to cause burns e 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 e DO NOT store items of interest to children in cabinets above a range or on the back guard of a range Children climbing on the range to reach items could be seriously injured 4h CAUTION Always use Pot Holders or oven mitts when removing food from the Warming Drawer You can be burned as cookware and plates will be hot e Be careful when yo
45. ped and injury e 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 4 WARNING might result from spilled hot liquid food or the range itself If the range is pulled away from the wall for cleaning service or any other reason ensure that the Anti Tip Device is properly reengaged when the range is pushed back against the wall To reduce the risk of tipping of the range the range must be secured by properly installed anti tip devices To check if the e DO NOT store items of interest to bracket is installed properly children in cabinets above a range or Warming drawer grasp the top rear edge of the Range and on the back guard ofa range carefully attempt to tilt it forward could be seriously injured Storage drawer Remove drawer and verify leveling leg is inserted into and fully secured by the anti tip devices Refer to the installation manual for proper anti tip bracket installation Copyright 2007 LG Electronics Inc All right reserved 1 2 LGE Internal Use Only Only for training and service purposes GENERAL IMPORTANT SAFETY INSTRUCTIONS e Do Not Leave Children Alone Childre
46. place the Storage Drawer a WARNING 1 Replace shield on the right glide of the drawer e DISCONNET power supply cord body from the outlet before servicing 2 Pull the bearing glides to the front of the chassis Replace all panels and parts before glide operating 3 Align the glide on each side of the drawer with e RECONNECT all grounding devices ules dee ten eens Failure to do so can result in severe personal 4 Push the drawer into the range until levers click injury death or electrical shock approximately 2 Pull the drawer open again to seat bearing glides into position If you do not hear the levers click or the bearing glides do not a CAUTION feel seated remove the drawer and repeat steps 2 4 This will minimize possible damage to the Be careful when you work on the bearing glides electric range handling the sheet metal part Sharp edge may be present and you can cut yourself To Remove Storage Drawer 44 CAUTION e Turn power OFF before removing the Warming Drawer 1 Open the drawer to the fully opened position 2 Remove the 2 screws right and left side refer to below picture 3 Locate glide lever on each side of drawer push down on the left 5 Pull the Storage drawer away from the range LGE Internal Use Only 3 12 Copyright O 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING amp REPLACING
47. poses EV COOKTOP PARTS Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 10 6 LGE Internal Use Only EV DRAWER PARTS gt For Model LSB5682SB La LGE Internal Use Only 10 7 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CAVITY PARTS Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 10 8 EV j LAA O LASA S LEP X d Y ls i ZI G LGE Internal Use Only LG Electronics Inc
48. rvice purposes Convection Bake Roast Mode Upper element lower element Rear element some model 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 es e Convection o EN ES element OR SS N gt L as Hidden bake element 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 LGE Internal Use Only USING YOUR RANGE CONTROL PANEL FEATURES A single C A single Left Rear element Warming zone Right Rear element CONV CONV BAKE ROAST BAKE BROIL e START COOKe PROOF SELF OVEN IMER o CLEAN LIGHT COOK AN TIME TIME WARM single B Dual Left Front element Right Front Dual element 1 BAKE PAD Press to select the bake function 12 COOK amp WARM PAD Press to keep cooked 2 BROIL PAD Press to select the broil function foods warm See the how to set the oven for 3 CONVECTION BAKE PAD Press to select baking warming section with the convection function 13 PROOF PAD Press to select a warm environment 4 CONVE
49. ses SCHEMATIC DIAGRAM A WARNING AC INPUT NOTE Schematic diagram shows door switch In the cook position with the oven door open and elements off POWER MUST BE DISCONNECTED BEFORE L2 AS N SERVICING THE APPLIANCE x RADIANT COOK TOP RF Right Front 1700W inner approx 32Q 27 00W Dual approx 56Q CR 100W approx 5700 WARMING ZONE CN18 RY12 RR COOKTOP RY13 LR COOKTOP a7 BK WIRE COLORS co ES een Gra a RY15 104 b WHITE a LE COOKTOP RY16 RF 9 COOKTOP GREEN PRI SEC CN3 Gy GRAY OVEN Es TRANSFORMER SENSOR EX ONG DOOR LOCK RY1 SWITCH O L ie Ty DOOR MOTOR Q O RY3 LGE Internal Use Only 9 1 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 circuits are for use in diagnosis and are shown in the ON position BAKE COOK amp WARM PROOF BROIL C RY6 BAKE BAKE HEATER BROIL BROIL 3 C O AY8 lt a BROIL HEATER OVEN LIGHT WH i BK F DOOR SWITCH CN4 Copyright 2007 LG Electronics Inc All right reserved 9 2 LGE Internal Use Only Only for training and service purposes
50. spia ee ee ee ee T 2 T 4 F 3 ESTO EE A A AA A AE 7 5 7 6 F Q ce Qe ee ee ee A 7 9 7 10 TROUBLE SOO WII Guanare er 8 1 8 3 SCHEMATIC DIAGRAM sssusuuuunuununanununnnnuannnnnunannannnununnnnannnnnunannannnnnunnnnnnnnnnnn a 9 1 eed cae Geib ee ee ee cr re ee rt ee ee er ee 9 2 9 5 EXPLODED VIEW sninnrenestaaa A EEan sente celica 10 1 10 9 REPLACEMENT PARTS LIST cccssc sccccccnunnnncunusnnncuscucuanengnsaennanengnagenuan 11 1 11 9 Copyright 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes GENERAL IMPORTANT SAFETY INSTRUCTIONS Read 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 ae WARNING serious bodily harm or death This symbol will alert you to hazards or unsafe practices which could cause 4h CAUTION bodily injury or property damage 4h WARNING e DO NOT step or sit on the door and install the Anti Tip Bracket
51. stainless model from the outlet before servicing e Replace all panels and parts before a Remove the 4 door handle screws and lift the door handle off door trim and slide up the door handle operating Handle e RECONNECT all grounding devices EN Screws Failure to do so can result in severe personal injury death or electrical shock 44 CAUTION e Be careful when you work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Remove the oven door from the range see page 3 13 for the procedure 2 Place the oven door on a padded work surface with the front glass facing down 3 Remove the 4 top door screws if ij a p y WE i 3 bottom liner screws LGE Internal Use Only 3 14 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS 7 To remove a hinge hanger assembly d Lift the inner oven door glass and bracket a Remove the 2 top liner screws assembly out of the door liner See step 3 on page 3 14 b Place the door liner assembly on a padded work surface with the hinge hangers over the edge c Remove the two bottom screws d Lift the hinge hanger out of the door liner slot Inner Oven Door Glass amp Bracket REASSEMBLY NOTE When you reinstall the insulation around the oven door glass make sure that the insulation is not visible in the glass after the door
52. tronics Inc All right reserved Only for training and service purposes F CODE FLOW CHART Oven too hot error F 9 error Code Error mode Operation Times sampling Oven hot Oven temperature is over 650 F During cook continuously during 2 minutes on cooking Not self clean mode Oven is too hot F 9 Disconnect power Remove the oven relay PCB 012B harness and pull the oven relay PCB 012B forward from case Check for a welded bake relay measure the resistance Welded Normal Continuity Infinite Replace the oven relay PCB Continued on the next page END Copyright 2007 LG Electronics Inc All right reserved 1 1 LGE Internal Use Only Only for training and service purposes F CODE FLOW CHART Yes Check for a welded broil relay measure the resistance Welded Normal Continuity Infinite Replace the oven relay PCB 012B Replace the main relay PCB 002F LGE Internal Use Only 7 8 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes TROUBLE SHOOTING Oven not operating Oven element does not heat Surface element barely heats e Bad power control board PCB e Power outage e No line voltage e Loose or bad wiring e Defective element e Bad Power control board PCB e Loose or bad wiring connection at element or terminal block Surface element will not heat e Defective Surface units control Higher than low medium
53. u work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself Be careful not to bend the fan blade Failure to do so can result in vibration noise and poor performance of convection when operating e Be careful not to scratch or chip the oven liner paint when you remove the oven light socket in the next step e Turn power OFF before removing the Warming Drawer Be careful when removing and lifting the door e DO NOT lift the door by the handle Failure to do so can result in personal injury as the door is very heavy LGE Internal Use Only 1 1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes GENERAL IMPORTANT SAFETY INSTRUCTIONS e Be sure your appliance is properly installed and grounded by a qualified technician h WARNIN G e Do not repair or replace any part of the appliance unless k specifically recommended in the manual e DO NOT touch heating elements or All other servicing should be referred to a qualified technician interior surfaces of oven e Always disconnect power to appliance before servicing by Heating element may be hot even though they are removing the fuse or switching off the circuit breaker dark in color Interior surfaces of an oven become hot enough to 4 WARNING cause burns e DO NOT step or sit on the door and install the Anti Tip Bracket packed with range The range could be tip
54. ure eee ee normally open type 2 Measure the resistance P Multiple meter scale R x 1000 JON Continuity Infinite NOTE After checking for the continuity of switch make sure that they are connected correctly LVT 1 Refer to page 3 3 for the servicing procedure Normal Approximately 2 Measure the resistance 270 10 Multiple meter scale R x 1000 If not replace Copyright 2007 LG Electronics Inc All right reserved 4 2 LGE Internal Use Only Only for training and service purposes Oven Sensor 1 Refer to page 3 11 for the servicing procedure Normal Approximately 2 Measure the resistance after cooling down 1 09 kQ 10 Multiple meter scale R x 1000 If not replace NOTE Q Value was tested at room temperature 77F 25 C NOTE Oven sensor is so sensitive to temperature Do test after cooling down sufficiently Door switch 1 Refer to page 3 5 for the servicing procedure Door open Door closed 2 Measure the resistance after cooling down Multiple meter scale R x 1000 Continuity Infinite Broil element 1 Refer to page 3 6 for the servicing procedure Normal Approximately 2 Measure the resistance after cooling down 14 Q 10 Multiple meter scale R x1 If not replace NOTE Q Value was tested at room temperature 77F 25 C Be careful the element is sensitive to temperature Bake element 1 Refer to page 3 7 for the servicing procedure Normal Approximately 17 Q 10 2 Measure t
55. vibration noise and poor performance of convection when operating LGE Internal Use Only 3 8 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN LIGHT amp SOCKET ASSEMBLY 44 CAUTION Be careful not to scratch or chip the 44 WARNING e DISCONNET power supply cord from the outlet before servicing e Replace all panels and parts before oven liner paint when you remove the oven light socket in the next step operating e RECONNECT all grounding devices Failure to do so can result in severe personal 5 Use a screwdriver and bend the clips on the oven injury death or electrical shock light socket away from the edges of the liner hole and pull the socket out of the liner NOTE If it is too difficult to remove the socket ae CAUTION from the front of the oven you will have to push h k f it Be careful when you work on the the socket out from the back of the unit electric range handling the sheet metal part Sharp edge may be present and you can cut yourself To replace E Socket Clips 1 Unplug range or disconnect power 2 Turn the glass bulb cover in the back of the oven counterclockwise to remove 3 Turn bulb counterclockwise to remove from socket 4 Replace bulb and bulb cover by turning clockwise Glass cover amp Bulb lt Viewed From Rear Panel gt Copyright 2007 LG Electronics Inc
Download Pdf Manuals
Related Search