30” Freestanding Gas Range SERVICE MANUAL
Contents
1. START TIME Desired start time gt START e START Copyright 2009 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 Relay PCB Power PCB Main PCB Spark module Door locking motor amp micro switch Igniter broil Burner pipe Oven light Burner body ane Cooktop valve amp e lt Door switch Oven sensor Ignition switch Door lock assembly Broil burner Bake burner Igniter bake Gas pressure Oven valve regulator Copyright 2009 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 PAD ASSEMBLY 44 WARNING e DISCONNECT power supply cord from the outlet before servicing e Replace all panels and parts before 44 CAUTION e Be careful when you work on the gas sch o AO N 6 Remove the 4 screws of PCB assembly and separate operating e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock range handling the sheet metal part Sharp edge may be present and you can cut yourself Turn off the electrical supply and gas supply going to the range Pul2. 44 CAUTION e Be careful when you work on the gas range handling the sheet metal part 5 To remove the door switch Sharp edge may be present and you can cut a Remove the door switch from the range yourself To do this squeeze tabs and use a ratchet extension or a small socket and tap it out of the hole with a hammer 1 Turn off the electrical supply and gas supply going to the range 2 Open the oven door 3 Remove the cooktop plate manifold and the case assembly see page 3 5 for the procedure 4 To remove the door latch a Remove the two screws from the door latch and remove the latch 2 Screws Door Switch LGE Internal Use Only 3 8 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE BROIL BURNER ASSEMBLY d Remove the igniter connecter in the cavit PI WARNING i To get the denen pull the wire K sch the e DISCONNECT power supply cord cay from the outlet before servicing e Remove the broil burner assembly Replace all panels and parts before NOTE When removing the screws make sure operating holding the Broil burner assembly e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock e Make sure the igniter connecter is completely outside when reinstalling the broil burner assembly 44 CAUTION e Be careful when you work on the gas
3. Only for training and service purposes CHECK THE FAILURE CODE F code E When the oven has some failure on cooking Cancel the cook In case of failure F code will not display It memorizes F code logs in EEPROM E Check the failure code as below steps 1 press the clear key 2 press the BAKE and BROIL key at the same time for 1 second If the oven has some failure the oven will show the failure code like FIG 1 It shows the type of F code and times of occurred failure alternately for each two seconds Type of F code Times of the occurred failure 2 second 2 second lt FIG 1 gt If the oven does not have any failure the oven will display like FIG 2 lt FIG 2 gt NOTE After checking the failure code press the CLEAR key LGE Internal Use Only 8 1 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes FAILURE CODE SUMMARY How to detect Check point Opened Sensor Oven sensor thermistor remains open 1 Wiring for over 1 min during cooking 2 Oven Sensor Shorted Sensor Oven sensor thermistor is short for over 1 Wiring 1 min during cooking 2 Oven Sensor Key shorted When some keys are continuously short Key malfunction Error for over 60 seconds The oven temperature is over 650 F 1 Oven Sensor Oven hot continuously during 2 minutes on cooking 2 Relay except self cleaning In case of Door Lock Failure in operatin
4. Website http us lgservice com LG 30 Freestanding Gas Range MODEL LRG3091ST LRG3091SB LRG3091SW CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL August 2010 P NO MFL63290104 Printed in Korea FORWARD This LG Service Manual 30 Freestanding Self Cleaning Gas Range provides the technician with information on the operation and service of the Freestanding Self Cleaning Gas 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 gas 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 44 WARNING If the information in this manual is not followed exactly a fire or explosion may result causing property damage personal injury or death If you smell gas e Do not try to light any appliance e Do not touch any electrical switch do not use any phone in
5. going to the range b Remove the 2 screws 2 Pull the range away from the wall so that you can c Remove the 2 tabs by using long nose pliers access the rear panel 3 Remove wire cover amp control cover See step 3 4 on page 3 2 Copyright 2009 LG Electronics Inc All right reserved 3 3 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE COOKTOP PLATE 5 Life top up at front Ah WARNING E 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 1 Turn off the electrical supply and gas supply going to the range 2 Remove the griddle grates burner caps and burner heads 3 Remove all 15 screws from cooktop burner housings 4 Disengage 2 front clips using a flat blade screw driver NOTE Before lowering the top onto the front clips line up the burner body and with the cooktop to replace screws LGE Internal Use Only 3 4 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE CASE ASSEMBLY COOKTOP BURNER ASSEMBLY 4 Remove the tubing fitting 5 8 inch A WARNING 5 Remove 5 phillips head screws e DISCONNECT power supply cord ege from the outlet before servicing e Replace all panels an
6. 2 OVEN UPPER BURNER BROIL 1 Remove oven door and Broil burner assembly Then remove the wire cover using a phillips head screwdriver See the page 3 11 2 Release the connector of the Igniter Copyright 2009 LG Electronics Inc All right reserved 5 4 Only for training and service purposes 3 Remove the orifice spud from nozzle holder using a 13 32 or 10mm wrench 4 Install the LP orifce spud C to the nozzle holder To prevent leakage make sure the orifice spud is securely screwed into the nozzle holder Se Counterclockwise tolremove l omiso wine Turn on the Electrical and Gas Supply to continue with flame adjustment ADJUSTING THE AIR SHUTTER For bake burner adjust the Air Shutter for LP gas loosen the Philips head screw and rotate the shutter to the fully open position as shown Fig 1 NOTE When converting the unit back to natural gas the bake burners air shutter should be also in fully open position For broil burner adjust the Air Shutter for LP gas loosen the Philips head screw and rotate the air shutter to the fully open position as shown Fig 1 Refer to Fig 1 NOTE When converting the unit back to natural gas the broil buners air shutter should be in 0 4inch 10mm open Om Refer to Fig 2 Screw Screw Air Shutter Air Shutter Fig 1 Fig 2 Check the flame size The flame should have approximately 1 inch blue cones After 30 seconds of the burner operation check
7. Liner Hole 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 44 CAUTION e Be careful when you work on the gas range handling the sheet 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 18 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING A SIDE PANEL 7 Remove the 6 screws from the left or right side PI WARNING panel 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 44 CAUTION e Be careful when you work on the 8 Pull the back of the side panel out from the range gas range handling the sheet metal approximately 10 part Sharp edge may be present and you can cut yourself sch Turn off the electrical supply and gas supply going to the range 2 Remove the oven door from the range see page 3 12 for the procedure 3 Pull the range away from the wall so you can access th
8. for flame stability If the flame is lifting off of the burner ports gradually reduce the air shutter opening until flames have stabilized Some yellow tipping may be normal when used on LP Counterclockwise to 0 4inch 10mm open SE INNER CONE Approx 1 OF FLAME LGE Internal Use Only CONVERSION TO LP GAS e Turn off the electrical supply and gas supply going to the range 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 gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 8 CHECK QUALITY OF THE FLAMES The combustion quality of the burner flames needs to be determined visually ANANA A Yellow Flames Further Adjustment Required B Yellow tips on outer cones dur f Normal for LP Gas 0000 C Soft Blue flames Normal for Natural Gas NOTE If burner flames look like A Further air shutter adjustment is required B or C is normal burner flames depending on the type of gas you use With LP gas some yellow tipping on the outer cones is normal 9 ADJUST THE SURFACE BURNER LOW FLAME SIMMER SETTING 1 Light all surface burners 2 Turn the knob on the burner being adjusted to LO 3 Remove knob LGE Internal Use Only 5 5 4 Insert a small flat bladed screwdriver
9. or been selected but the door is not DOOR OPENED appears closed in the display DOOR LOCKED light is on e The oven door is locked because e Touch the CLEAR OFF pad Allow the when you want to cook the temperature inside the oven oven to cool has not dropped below the locking temperature Oven control beeps and e See the page 9 1 in this manual Shorted oven sensor Shorted keypad Oven is too hot Door locking system don t operate No heating Copyright 2009 LG Electronics Inc All right reserved 11 3 LGE Internal Use Only Only for training and service purposes TROUBLE SHOOTING Oven racks are difficult to e The oven racks were cleaned in a e Apply a small amount of vegetable oil to a slide self clean cycle paper towel and wipe the edges of the oven racks with the paper towel Do not use lubricant sprays Power outage clock flashes e Power outage or surge e Reset the clock If the oven was in use you must reset it by touching the CLEAR OFF pad setting the clock and resetting any cooking function Burning or oily odor e This is normal in a new oven and To speed the process set a self clean emitting from the vent will disappear in time cycle for a minimum of 3 hours See the USING THE SELFCLEANING OVEN section Strong odor e An odor from the insulation e This is temporary around the inside of the oven is normal for the first few times the oven is used D
10. or more surface units of different sizes Select utensils having flat bottoms large enough to cover the surface unit heating element The use of undersized 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 e 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 burns 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 e Be sure you know which knobs operate each burner Make sure you turn
11. 4 1 LGE Internal Use Only Only for training and service purposes Micro Switch 1 Refer to page 3 13 for the servicing procedure Door latch Door latch normally open type 2 Measure the resistance Multiple meter scale R x 1000 open Locked Continuity Infinite NOTE After checking for the continuity of switch make sure that they are connected correctly Oven Sensor 1 Refer to page 3 14 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 8 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1 Continuity Infinite LGE Internal Use Only 4 2 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes Oven lamp 1 Measure the resistance after cooling down Normal Approximately Multiple meter scale R x1 5 Q 10 If not replace Broil or bake igniter 1 Refer to page 3 9 or 3 10 for servicing procedure Normal 45 Q 100 Q 2 Measure the resistance after cooling down Room Temperature Multiple meter scale R x 1 Resistance If not replace 1 Refer to page 3 21 for servicing procedure Normal Approximately 2 Measure the resist
12. Clean COMPONENT ACCESS sesaiee cies octnniestemrineanenmasonemaeanien 3 1 3 20 e Component Boeschel Me et ee ee er tr re eee eee eee ere errr ee eer eee eee 3 1 e Removing the Back Control cover and Key pad assembly ee ne Rg PTR a eee ne eee er eee 3 2 e Removing the Spark Module IG Trans and Power Control Board PCB sn 3 3 e Removing the Cooktop Pala saeteee een eter een ee eee ence et atest eden creme eecaeene 3 4 e Removing the Case assembly Cooktop Burner assembly Se On ee ee E Eege 3 5 e Removing the Cooktop SCT EE 3 6 3 7 e Removing the Door Latch and the Door SWItch enee EE eee eee EE EE EE een EE EE EE EE EE EE EN 3 8 Removing the BROIL Burner assembly EE een eee a se ee eee eee eee 3 9 e Oven Bottom the Frame guide and the Burner assembly Ee 3 10 e Removing the Oven light amp Socket assembly GE 3 11 e Removing the latch drive assembly BEE EE Ee 3 12 Door locking AG SG eSNG ee 3 12 Removing the Oven temperature VE E E 3 13 e Removing amp Replacing the Warming ell WEE 3 14 D Removing amp Replacing ine Gino Oven Rloe mer te er eee ee ee e E ge 3 15 Removing the Oven Door Handle amp GIASS nee 3 16 3 17 e Removing the Oven Door GasSkKOl ee ee ee eee 3 18 e Removing a ICG Ie GIG EE 3 19 Removing the Oven Valve Safety Valve amp Gas Regulator SE 3 20 LGE Internal Use Only Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes Page COMPONENT WES Wiener ac ce sei em
13. Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE Reconnect Check the resistance of each ignitor In case of defective harness measure the resistance after cooling down replace or fix Normal approximately 45Q 400Q Broil ignitor Baker ignitor Replace the failed ignitor END Check the resistance of Gas valve Normal approximately 1 1 5Q Broil Gas Valve Bake Gas Valve LGE Internal Use Only 10 7 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE No Yes Replace the Failed Valve Check the oven sensor measure the resistance after cooling down Normal approximately 1 06 kQ at 65F 1 12 kQ at 85F Replace the oven sensor Yes Replace the power PCB EBR60969203 lt n Yes Replace the main PCB EBR60969303 END 10 8 CHECKING FLOW CHART BY FAILURE 1 Door Lock System 1 Check the Electric wiring Failure 2 Check the Motor s Resistance 2 F 10 MAIN PCB CN12 11213 4 5 6 7 8 9 fof if 2 DOOR SWITCH DOOR LOCK SWITCH 2 3 4 5 6 7 8 9 01112 CN14 POWER PCB m EURES INNON CNO2 gt RD 1 CHECKING FLOW CHART BY FAILURE Door lock failed Disconnect the power the Disconnect the power Check the terminal looseness of micr
14. eIn EE CNOS CNO1 10 13 CHECKING FLOW CHART BY FAILURE Main oven sensing error F 1 F 2 error Check the looseness of oven sensor connector Main oven sensing failed Disconnect the power No Reconnect Yes Disconnect the main oven sensor and check the main oven sensor value measure the resistance after cooling down Normal approximately 1 06 kQ at 65F 1 12 kQ at 85F Replace the main oven sensor Yes 10 14 CHECKING FLOW CHART BY FAILURE Yes Check the looseness of connector Power PCB CN04 and look for harness terminal damage No Reconnect and replace the bad harness Yes Connect the power Check the value of thermistor by using the test mode x To enter the test mode follow these steps 1 press the clear key 2 press the BAKE BROIL key at the same time for one second failure code display mode 3 press the BAKE BROIL key at the same time again S W version and model option display mode 4 press the COOK TIME key It show the display from step1 to step3 alternately each two seconds TIMER DELAY TIMED l on a a BAKE BROIL WARM CLEAN LOCKED 10 15 CHECKING FLOW CHART BY FAILURE Main oven sensing error F 1 F 2 error SEN STEP 3 Check the sensor value at step 3 Normal the sensor value is from 65 F to 95 F at room temp eet gt Replace the Power PCB EBR60969203 Yes Co
15. ence nescence eran areas eases 4 1 4 3 e Door locking lait E 4 1 e Micro Switch normally open type DEE ee 4 2 Qv peels the Re ee ee ee ee ee eee 4 2 SMSen Meee ee eee ee ege ee 4 2 e Oven lamp REEL S 4 3 e Broil or bake igniter EE Dee Ee Dee accede r sees 4 3 e Oven safety Vic omer ee ee ee ee ee er ere eee ee er ee ee ee 4 3 Ignition AE a EE 4 3 CONVERSION TO LP GAS ENEE 5 1 5 5 COMPOSITION OF CONTROL 5 52s suu 2ssu2222uuuussununnuunnnnunnne 6 1 6 2 well gg Oe EE 6 2 Power PCB EE 6 2 e Relay Ee ee ee ee ee ee ee ee re ae ee ee ee eee 6 2 DIAGNOSIS THROUGH SCHEMATIC ENEE 7 1 CHECK THE FAILURE CODE F Code ENEE 8 1 FAILURE CODE SUMMARY AANEREN 9 1 CHECKING FLOW CHART BY FAILURE ssssssssnunnununnnunnnnnnnnnnnnnnn 10 1 10 23 eNo display No power SE 10 2 10 4 eNo heating including F11 error SE EE Ee a ee dee 10 5 10 8 e Door lock system failure including F10 error BEE 10 9 10 12 Sensing fail including F1 F2 error Seeche EE 10 13 10 16 e Oven hot including F6 error EE 10 17 10 19 e Key pad failure including F3 error ee 10 20 10 21 e Oven lamp does not 0 0 f gt eee eee eee rrr 10 22 10 23 TROUBLE SHOOTING ENEE 11 1 11 4 EXPLODED VIEW correa eee eee 12 1 12 9 REPLACEMENT PARTS LIST Aneness see kkENk ENKER ERRERR ERR EREERERR ERR EREERERR EE EE 13 1 13 12 Copyright 2009 LG Electronics Inc All right reserved LGE Internal Use Only Only for trainin
16. fitting Copyright 2009 LG Electronics Inc All right reserved 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 in 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 44 WARNING e Turn off the electrical supply and gas supply going to the range 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 Door locking Motor 1 Refer to page 3 13 for the servicing procedure Normal Approximately 2 Measure the resistance 2 6 kQ 10 Multiple meter scale R x 1000 If not replace Abnormal Infinite open below 5Q shorted Copyright 2009 LG Electronics Inc All right reserved
17. for the timer or automatic oven operations 4 BROIL Pad Press to select the broil function 5 BAKE Pad Press to select the bake function 6 START Pad Must be pressed to start any cooking or cleaning function 7 START TIME Pad Use along with Bake Cook Time and Self Clean pads to set the oven to start and stop automatically at a time you set 8 TIMER ON OFF Pad Press to select the timer feature 9 Pad Enters or changes time oven temperature Sets HI or LO broil 10 SELF CLEAN Pad Press to select self cleaning function See the using the Self Cleaning Oven section LGE Internal Use Only o o o COOKING MODE lt O fereye 4 PEAY ow A WI BROIL START LOCKED OVEN LOCK CLEAR LIGHT OFF 11 OVEN LIGHT Pad Press to turn the oven light on or off 12 CLEAR OFF Pad Press to cancel all oven operations except the clock and timer NOTE If F and a number appear in the display and the oven control signals this indicates a function error code Press the CLEAR OFF pad Allow the oven to cool for one hour Put the oven back into operation If the function error code repeats disconnect the power to the oven and call for service If your oven was set for a timed oven operation and a power outage occurred the clock and all programmed functions must be reset The time of day will flash in the display when there has been a power outage Copyright 2009 LG Electronics Inc All
18. right reserved Only for training and service purposes USING YOUR RANGE 1 TO TURN ON THE SURFACE BURNER 1 Be sure all the surface burners are placed in their respective positions 2 Push the control knob in and turn it to the LITE positions 3 You can hear a little CLICKING noise the sound of the electric spark igniting the burners 4 To control the flame size turn the knob If the knob stays at LITE it will continue to click NOTE e When turning a burner to LITE all the burners spark Do not attempt to disassemble or clean around any burner while another burner is on An electric shock may result which could cause you to knock over hot cookware e The medium left rear and the large left front burners are the primary burners for most cooking These general purpose burners can be turned down from HI to LO suit a wide range of cooking needs e The extra large burner right front is the maximum output burner Like the other four burners it can be turned down from HI to LO for a wide range of cooking applications e This burner is also designed to quickly bring large amounts of liquid to a boil It has a special Ultra Heat setting designed to be used with cookware 10 inches or larger in diameter e The oval burner center is for large pots pans or for use with the griddle e The extra large burner dual can be also turned down to LO for a low simmer setting almost l
19. Adjustment 2 Preheating Alarm Light On Off Special function 3 Beeper Volume High Low Off 4 Temperature unit F C 5 Clock 12hr 24hr Cooktop Ename tof elemen toletement een Input Rate pcre NAT LP Gg 5k 5k BTU hr 1 9 1k 9 1k 12k 9 5k 17k 10k Oven Capacity cu fe 5 4 Broil NAT LP BTU hr 14 5k 13 5k Bake BTU hr k 18k Convection system of Racks 2 o Proof O amp warm e Favorites a A Broiler Geh Drawer Type s Po Storage e Oven Interior W x H x D 24 1 2 x 19 1 2 x 19 3 8 m Width 30 Exterior Exterior Height 36 cooktop 47 7 16 backguard top Exterior laaf 26 1 2 Door 28 3 4 with handle Net eao lbs laaf 269 Ibs 122kg Power Rating 120V 4 5A LGE Internal Use Only 1 5 Copyright 2009 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 Bake burner operates during bake mode Bake can be used to cook foods which
20. E at elt He ah g D vierge ge E08 gt lt RE uw GE OL OOD a eg 3 ay Controller assembly Copyright 2009 LG Electronics Inc All right reserved 6 1 LGE Internal Use Only Only for training and service purposes COMPOSITION OF CONTROL Main PCB P N EBR60969303 Power PCB P N EBR60969203 CNO2 RS D 428060 Zi 2026960 msamaa AAN AN 01 E A 9493 G A LGE Internal Use Only 6 2 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes DIAGNOSIS THROUGH SCHEMATIC Symptom Sensor error or Symptom no heating F 1 F 2 F 11 Door lock fail F 10 Check Sensor resistance Check related part approximately 1 06 kQ at 65F 1 12 KO at 85F DOOR SWITCH DOOR LOCK SWITCH SE HARECEOLLEAL 2 3 l4i5l6 7 8 9 fol m2 CNO3 CNO4 CN13 CN14 TRANSFORMER RY6 RYS RY2 RY1 O LUY op 9000 Kei obt TINS INS INIZINIG Ka E 7 5 7 CNOS CN02 ei S d ke m Q Q d POS geb 3 MOTOR B WH NI Symptom no heating F 11 Symptom Check related part Oven lamp not operating Check the Lamp coil s resistance Normal approximately 20 400 Symptom Oven hot F 6 Check All heater relays are open short Copyright 2009 LG Electronics Inc All right reserved 7 1 LGE Internal Use Only
21. G Electronics Inc All right reserved Only for training and service purposes 12 6 LGE Internal Use Only SEN S DRAWER PARTS LGE Internal Use Only 12 7 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes SEN S CAVITY PARTS Il i i By dk een O VE LRG3091SB LRG3091SW j A gt S For Model SE Y d N a GN W323 YA D AA f S LGE Internal Use Only 12 9 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes LG Electronics Inc
22. MOVING THE LATCH DRIVE ASSEMBLY 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 44 CAUTION e Be careful when you work on the gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply and gas 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 see step 5 on page 3 2 4 Disconnect the wires from the latch drive motor and switch 5 Remove the 3 mounting screws from the latch drive Cam Latch rod M switch Latch drive motor 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 HOOK MICRO SWITCH MOTOR 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 that causes the motor to stop 4 The locked status remains until the range temperature drops to appro
23. O NOT touch burners grates or interior surfaces of oven Heating element may be hot even though they are off 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 burners grates 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 Ah CAUTION e 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 you work on the gas range handling the sheet metal part Sharp edge may be present and you can cut yourself e 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 e 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 d
24. PIN No of CNOZ PIN5 PIN7 approximately 138 Q No Replace the power PCB EBR60969203 Power On Check the voltage of Power PCB CN13 pin 1 and pin 3 pin1 and pin 4 END PIN No of CN13 Voltage PIN1 GND PINS approximately 9V PIN1 GND PIN4 approximately 4 5V 5 5V LGE Internal Use Only 10 3 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE Replace the power PCB EBR60969203 Yes Replace the main PCB EBR60969303 Copyright 2009 LG Electronics Inc All right reserved 10 4 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE 1 No heating 1 Check Electric Wiring 2 F11 2 Check Heater s Resistance 3 Check the Sensor thermistor MAIN PCB Cu CN12 EIERE 111213 41516 718 19 011112 O OVEN SENSOR 1 2 3 4 5 6 7 8 9 142 314 5 6 7 8 9 flO 1f 2 CN13 CN14 CNO3 POWER PCB lt CN2 INI N5NZN 9 REES EECHER CNOS j j RD WH N LGE Internal Use Only 10 5 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE No Heating Disconnect the power Check the looseness of bake broil heater connection Copyright 2009 LG Electronics Inc All right reserved 10 6 LGE
25. ance after cooling down 1 3Q Multiple meter scale R x 1 If not replace Downside Ignition switch 1 Refer to page 3 21 for servicing procedure RE 2 Measure the resistance by rotating the cam of E each switch slowly Multiple meter scale R x 1 Continuity Infinite Copyright 2009 LG Electronics Inc All right reserved 4 3 LGE Internal Use Only Only for training and service purposes CONVERSION TO LP GAS 2 CONVERT THE PRESSURE REGULATOR 44 WARNING 44 WARNING e Turn off the electrical supply and gas supply going to the range e Replace all panels and parts before e Do not remove the pressure regulator from the range operating e RECONNECT all grounding devices Failure to do so can result in severe personal Remove the storage drawer and the pressure injury death or electrical shock regulator is located at the rear of the range 44 CAUTION e Be careful when you work on the gas range handling the sheet metal part Sharp edge may be present and you can cut yourself Pressure regulator 3 CONVERTING YOUR REGULATOR Tols required 1 Unscrew the hex nut cap by using an adjustable wrench 2 Separate plastic cap and hex nut cap by turning the plastic cap to 90 3 Assemble plastic cap in the opposite side 4 Screw the hex nut cap back into the regulator Do not over tighten e Adjustable wrench e 13 32 or 10mm open end wrench e Phillips head screwdriver e Flat bladed sc
26. are normally baked Oven must be preheated Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes Broil Mode Broil burner operates during broil mode 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 te Th Broil burner LZ Zei 4 f 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 o ee TIME MODE TIMER AM IC SI CLOCK TIME TIMED BAKE BROIL WARM CLEAN START TIMER TIME ON OFF o 1 CLOCK Pad Press before setting the time of day 2 COOK TIME Pad Press and then use the and 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 3 Display Shows the time of day oven temperature whether the oven is in the bake broil or self cleaning mode and the times set
27. as shut off valve may To check the oven gas shut off valve oven does not have accidentally been moved remove the warming drawer see the during cleaning or moving CARE AND CLEANING OF THE RANGE section in user s guide and look for the gas shut off lever at the back of the range Lever is shown closed PULL TO OPEN Copyright 2009 LG Electronics Inc All right reserved 11 1 LGE Internal Use Only Only for training and service purposes TROUBLE SHOOTING Food does not bake or roast properly e Improper oven controls setting e Incorrect rack position e Incorrect cookware or cookware of improper size being used e Oven thermostat needs adjustment e Clock not set correctly e Aluminum foil used improperly in the oven Food does not broil properly in the oven e Improper oven controls setting e Oven door not closed e Incorrect rack position e Food being cooked in a hot pan e Cookware not suited for broiling e Aluminum foil used on the broiling pan and grid has not been fitted properly and slit as recommended Moisture collects on oven window or steam comes from oven vent e When cooking foods high in moisture e Excessive moisture was used when cleaning the window e See the USING THE OVEN section in user s guide e See the USING THE OVEN section in user s guide e See the USING THE OVEN secti
28. ce the oven door on a padded work surface with the front glass facing down 3 Remove the 4 top door screws l a ae b Lift the door handle off door trim 4 Remove the three bottom screws from the door liner 3 bottom liner screws 5 Lift the liner assembly off the front glass and set it aside cl Slide up the door trim and pull the glass trim forward LGE Internal Use Only 3 16 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS 8 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 is reassembled 9 To remove the oven door glass assembly a Remove the 8 screws b Lift the insulation cover off the door liner Copyright 2009 LG Electronics Inc All right reserved 3 17 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
29. crew Seal valve it is necessary to service also the pipe which Valve Screw is designated Valve Seal 1 Turn off the electrical supply and gas supply Double Burner going to the range Valve 2 Remove the cooktop plate See REMOVING THE COOKTOP PLATE on page 3 4 K H 4 Screws Ol A LGE Internal Use Only 3 6 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS 5 To remove the ignition switch a Remove the manifold panel See the step 3 on page 3 5 b Pry on the 2 release tabs and slide the switch off the valve stem c Remove the connector and remove the ignition switch 6 To remove the electrode spark plug a Remove the rear control panel See the step 2 3 on page 3 2 b Remove the connector from the spark module c Remove the wire ring d Remove the electrode from the burner housing Copyright 2009 LG Electronics Inc All right reserved 3 7 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE DOOR LATCH amp DOOR SWITCH b Remove the 2 screws and then remove the PI WARNING i bar from the door latch e DISCONNECT power supply cord c Remove the door latch from the outlet before servicing E e EN 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
30. ctronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN LIGHT amp SOCKET ASSEMBLY 44 CAUTION e Be careful not to scratch or chip the 44 WARNING e DISCONNECT 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 operating step 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 a CAUTION from the front of the oven you will have to push e Be careful when you work on the the socket out from the back of the unit gas range handling the sheet metal part Sharp edge may be present and you can cut yourself d Socket Clips To replace 1 Turn off the electrical supply and gas supply going to the range 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 2009 LG Electronics Inc All right reserved 3 11 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS RE
31. d parts before operating e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock 1 Turn off the electrical supply and gas supply going to the range 2 Remove the cooktop plate See REMOVING THE COOKTOP PLATE on page 3 4 3 Remove the manifold panel by unfastening the 9 phillips head screws E en a O Copyright 2009 LG Electronics Inc All right reserved 3 5 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE COOKTOP PARTS 4 To remove the valve Zs WARNING a Remove the manifold panel See the step 3 on e DISCONNECT power supply cord page 3 5 from the outlet before servicing b Remove the fitting that you need to remove e Replace all panels and parts before c Remove the ignition switch by prying on the 2 operating release tabs and slide the switch off the valve stem e RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock d Remove the valve screw and remove the valve 44 CAUTION e The 2 lock tabs on each igniter switch are fragile Tab breakage can occur if excessive release pressure is applied e Check that the gas seal gasket on the screw and the gas valve remain in place before installing the new gas valve Screw Seal Valve Screw Valve Seal Single Bumer valve NOTE When servicing the burner housing or the S
32. desired temperature 3 Press START pad LGE Internal Use Only USING YOUR RANGE 7 PREHEATING ALARM LIGHT ON OFF 1 Press and hold TIMER ON OFF for 3 seconds The display will show Opt 2 Press OVEN LIGHT to switch between On and OFF 3 Press START pad 8 BEEPER VOLUME 1 Press and hold TIMER ON OFF for 3 seconds The display will show Opt 2 Press to switch beeper volume Hi Lo and OFF 3 Press START pad 9 TEMPERATURE UNIT F or C 1 Press and hold TIMER ON OFF for 3 seconds The display will show Opt 2 Press to switch between the F and C 3 Press START pad 10 BAKE TIMED BAKE DELAYED TIMED BAKE BAKE gt gt E Se Desired time Desired temperature gt START START TIME 11 BROIL gt START Desired start time START twice Low BROIL once High LGE Internal Use Only gt START 2 4 12 TIMED COOK WITH WARM Desired COOK BAKE Temp TIME 5 T SE wl WARM a START 13 OVEN LOCKOUT Press and hold the CLOCK pad for 3 seconds to activate or reactivate LOCKOUT 14 CHANGING HOUR MODE ON CLOCK 12HR 24HR Press and hold the CLOCK pad for 3 seconds Press 1 pad to select 12 or 24 hour 15 SELF CLEAN SELF CLEAN Once 3 hour Twice 2 hour 3 times 4 hour START
33. e properly grounded outlet Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes TROUBLE SHOOTING Oven will not selfclean e The oven temperature is too high Allow the range to cool to room to set a self clean operation temperature and reset the controls e Improper oven controls setting e See the USING THE SELF CLEANING OVEN section in user s guide Crackling or popping e This is the sound of the metal e This is normal sound heating and cooling during both the cooking and cleaning functions Too much smoking during a ie Too much soil e Touch the CLEAR OFF pad Open the self clean cycle windows to get rid of smoke from the room Wait until the DOOR LOCKED light goes off Wipe up the excess soil and reset the clean cycle Oven door will not open e The oven temperature is too high Allow the oven to cool below locking after a self clean cycle temperature e This can take up to 1 hr after the cycle is complete Oven not clean after a self Improper oven controls setting e See the Using the USING THE SELF clean cycle CLEANING OVEN section in users guide e The oven was heavily soiled e Clean up heavy spillovers before beginning the self clean cycle Heavily soiled ovens may need to self clean again or for a longer period of time CLOSE DOOR TO e The broil or self clean cycle has Close the oven door CONTINUE BROILING
34. e back of the unit 4 Remove the 15 screws from the rear panel and remove the panel see step 4 on page 3 2 5 Raise the cooktop plate see the page 3 4 for the procedure 6 Remove the two screws from the top rear of the side panel 9 Push forward and remove the side panel Copyright 2009 LG Electronics Inc All right reserved 3 19 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVE THE OVEN VALVE SAFETY VALVE amp GAS REGULATOR 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 44 CAUTION e Be careful when you work on the gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply and gas supply going to the range 2 Pull the range away from the wall so you can access the pipe of the unit 3 To remove the oven valve a Remove the drawer see page 3 13 for the procedure b Remove the 3 fittings LGE Internal Use Only c Remove the 4 connectors d Remove the 4 screws and than lift the oven valve Xconnecters A Screws A E 2fconnecters 4 To remove the gas regulator a Remove the 2 fittings and a gas supplier fitting Biet Wi e J ras ae
35. ed on the correct burner e To prevent burns always be sure that the controls for all burners are at the OFF position and all grates are cool before attempting to remove them LGE Internal Use Only 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 e Do Not Heat Unopened Fo
36. ere personal injury death or electrical shock 44 CAUTION e Be careful when you work on the gas 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 storage drawer 1 Pull the drawer out until it stops 2 Lift the front of the drawer until the stops clear the guides 3 Remove the drawer Pull the drawer LGE Internal Use Only 3 14 To Replace the Storage Drawer 1 Place the drawer rails on the guides 2 Push the drawer back until it stops 3 Lift the front of the drawer and push back until the stops clear the guides 4 Lower the front of the drawer and push back until it closes Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING amp REPLACING THE LIFT OFF OVEN DOOR 4 CAUTION To replace the door e Be careful when removing and WE gend the lifting the door door at the top e DO NOT lift the door by the handle Failure to do so can result in personal injury as the door is very heavy 2 With the door at the same angle as the removal 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 To remove the door 1 Fully open the door Indentation 2 Pull the h
37. es and paper away from parts of the appliance that may become hot e Wear Proper Apparel Loose fitting or hanging garments should never be worn while using the appliance e 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 Make sure your range is properly adjusted by a qualified service technician or installer for the type of gas natural or LP that is to be used Your range can be converted for use with either type of gas e NEVER block the vents air holes of the range They provide the air inlet and outlet that are necessary for the range to operate properly with correct combustion Air openings are located at the rear of the cooktop at the top and bottom of the oven door and at the bottom of the range under the warming drawer 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 LGE Internal Use Only GENERAL IMPORTANT SAFETY INSTRUCTIONS SURFACE COOKING UNITS e f the top burner flame goes out gas is still flowing to the burner until the knob is turned to the OFF position Do not leave the burners ON unattended e Use Proper Pan Size This appliance is equipped with one
38. g Electric Wiring Door Lock Fail Lock motor Motor s Resistance Micro Switch No heating If starting oven temperature does not Electric Wiring exceed 150 F and oven temperature is less 2 Gas Valve Than or equal to starting temperature over 3 Ignitor 5 minutes during preheating while door is 4 Oven Sensor closed Copyright 2009 LG Electronics Inc All right reserved 9 1 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE 1 Power Failure 1 Check Electric Wiring Dead 2 Check the Power PCB and Main PCB Voltage 2 No Display CN12 l1 2 3 4 5 6 7 8 9 flO 2 ASM lere 1 2 3l4 5 6 7 8 9 foj 1f 2 CN14 TRANSFOR RD 1 LGE Internal Use Only 10 1 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE _Blankdisplay gt Blank display Enter key input Oven display blanks Some beep sounds Yes 2 Check AC input voltage of Power PCB Power PCB CNO2 pin 5 and 7 Check the harness of between L1 N Disconnect the power Replace the defective harness Copyright 2009 LG Electronics Inc All right reserved 10 2 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE Check the LVT coil resistance imi WA AO
39. g 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 a WARNING serious bodily harm or death This symbol will alert you to hazards or unsafe practices which could cause Ad CAUTION bodily injury or property damage Ah WARNING e DO NOT step or sit on the door and install the Anti Tip Bracket 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 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 D
40. hoke into the burner base then insert the set screw into the burner base and tighten securely Make sure the screw head is against the shoulder within choke notch so it does not have any rotational movement Self threading screw Choke 17k burner base lt Fig gt 6 Put the old orifice spuds into conversion kits and place back on the range for possible future conversion NOTE If an orifice spud is accidentally dropped the cooktop plate can be raised see the page 3 4 5 3 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CONVERSION TO LP GAS 44 WARNING e Turn off the electrical supply and gas supply going to the range 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 gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 5 CONVERT THE OVEN BURNER ORIFICES 1 OVEN LOWER BURNER BAKE a Remove oven door oven bottom frame guide nozzle case and oven burner assembly See the page 3 10 b Remove the orifice spud from nozzle holder using a 13 32 or 10mm wrench c Install the LP orifce spud D to the nozzle holder To prevent leakage make sure the orifice spud is securely screwed into the nozzle holder B Clockwise tojinstall
41. ike the small burner 2 SETTING THE CLOCK CLEAR Desired OFF CLOCK Time gt START 3 START CLEAR OFF 1 Touch START pad to start oven 2 Touch CLEAR OFF pad to cancel a program during cooking or Erase during programming Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 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 turned ON or OFF by press the OVEN LIGHT pad NOTE The oven light cannot be turned on if self clean feature is active 5 TIMER ON OFF TIMER Desired TIMER ON OFF i time PF ON OFF To cancel timer at any time touch TIMER ON OFF pad NOTE 1 If you press TIMER ON OFF pad once this allows you to select seconds for example if you press 5 and 6 it means 56 seconds 2 If you press TIMER ON OFF pad twice this allows you to select minutes for example if you press 5 and 6 it means 56 minutes 6 OVEN TEMPERATURE ADJUSTMENT The oven temperature can be adjusted from 35 F 19 C to 35 F 19 C NOTE The oven temperature adjustments made with this feature will just change Bake temperature To increase the oven temperature 1 Press and hold BAKE for 3 Seconds 2 Press the desired temperature 3 Press START pad To decrease the oven temperature 1 Press and hold BAKE for 3 Seconds 2 Press the
42. inge locks down toward Fig 1 the door frame to the unlocked position 3 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 lt Fig 2 gt 5 Lift door up and out until the hinge arm is clear of the 5 Close the oven door slot Copyright 2009 LG Electronics Inc All right reserved 3 15 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN DOOR HANDLE amp GLASS 4 WARNING e a a handle off door trim and slide up the door trim e DISCONNECT power supply cord 2 door handle screws 2 Wei handle screws from the outlet before servicing a A 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 D CAUTION 7 To remove the door handle trim amp glass a wes lt a AS NAE an n t e Be careful when you work on the for white Black model gas range handling the sheet metal a Remove the handle and glass trim screws part Handl Sharp edge may be present and you can cut SEN yourself 1 Remove the oven door from the range see page 3 15 for the procedure 2 Pla
43. into and fully secured by the anti tip devices Refer to the installation manual for proper anti tip bracket installation Ah WARNING e DO NOT touch burners grates or interior surfaces of oven Burners grates may be hot even though they are off 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 burners grates 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 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 4 WARNING 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 e Do Not Leave Children Alone Children 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 e 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 cloth
44. into the valve shaft as shown in Fig 1 Turn the adjustment screw until the flame reaches the desired size 5 Replace the knob lt gt Center adjustment screw Fig 1 6 Test the flame stability Test 1 Turn the knob from HI to LOW quickly If the flame goes out increase the flame size and test again Test 2 With the burner on a LOW setting open and close the oven door quickly If the flame is extinguished by the air currents created by the door movement increase the flame height and test again 7 Repeat steps 1 5 for each surface burner 10 CONVERSION STICKER Upon completion of the conversion fill out the LP sticker located with the instructions Once complete attach the sticker to the back of the range near the regulator Place all orifice s that were removed for natural gas back into the plastic bag along with the instructions Place the kit back into its original location CONVERSION IS FINISHED To convert to the original gas Follow conversion process with original orifices to convert the appliance to the original gas NOTE The choke for the 17k top burner must be removed when converting the range back to natural gas Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPOSITION OF CONTROL ya COA ERK rev i a o t f Dy e Se COOLS ZE N gt gt amp C m e E eet i E E te tt vc SCH A ch get GE
45. l the range away from the wall so that you can access the rear panel Remove two wire covers by removing the screw Remove the 3 screws from the rear control cover and remove the cover Remove the 16 screws from the rear back cover Control Cover Wire cover Back Cover PCB assembly after unpluging the connectors LGE Internal Use Only 7 Remove the 6 screws of PCB assembly and separate PCB assembly after unpluging the connectors 8 Remove the 2 screws of the eyebrow from the controller sub assembly and remove the eyebrow Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE SPARK MODULE IG TRANS AND POWER CONTROL BOARD PCB 4 There are 3 PCB s power control board When PI WARNING you check PCB bi the proper pcb eae e DISCONNECT power supply cord diaa from the outlet before servicing H EE composition of control board e Replace all panels and parts before operating Power Supply PCB Main PCB Relay PCB 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 gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 5 5 connectors of the electrode and a connector of the harness 1 Turn off the electrical supply and gas supply a Disconnect 6 connectors
46. o switch and door locking motor Reconnect Check the oven door lock switch micro switch measure the resistance Normally open type END Door latch Door latch open Locked Continuity Infinite Copyright 2009 LG Electronics Inc All right reserved 10 10 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE Replace the micro switch Check the door locking motor measure the resistance normal approximately 2 6 kQ abnormal infinite or below 5 Q Replace the door locking motor Check the looseness of CNO3 y END Yes Reconnect END LGE Internal Use Only 10 11 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE Door lock system error F 10 error Check the loose connection ay ke ell ie Cl Eege Replace the main PCB EBR60969303 Replace the Power PCB EBR60969203 10 12 CHECKING FLOW CHART BY FAILURE 1 Sensing Fail 1 Check the electric wiring 2 F 1 2 Check the test Mode 3 F 2 3 Check the sensor thermistor resistance approximately 1 06 kQ at 65F 1 12 KQ at 85F MAIN PCB CN12 111213 4 516 7 8 9 101112 CNO9 CN11 L112 3 4 9 112 5 4 5 6 7 8 9 OVEN SENSOR POWER PCB TABOT TABO2 TABO4 STABOS USES ics SEE Ka FHA
47. od 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 center burner 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 DEEP FAT FRYERS e Use extreme caution when moving the grease kettle or disposing of hot grease Copyright 2009 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 Model amp Serial Number Location mee ae ee Tech Sheet Location On Low Rear Cover Copyright 2009 LG Electronics Inc All right reserved 1 4 LGE Internal Use Only Only for training and service purposes GENERAL SPECIFICATIONS Model Number LRG3091ST LRG3091SB LRG3091SW Overall Width 30 Installation type Freestanding Color availability Control Oven Push button key pad a ooo SE a I Display o LED Co OO Electronic clock amp timer Control lock capability Audible preheat signal OOO 1 Thermostat
48. on in user s guide e See the HOW TO ADJUST THE OVEN THERMOSTAT section in user s guide e See the USING THE CLOCK AND TIMER section in user s guide e See the CARE AND CLEANING OF THE RANGE section in user s guide e Make sure you touch the BROIL HI LO pad e See the USING THE OVEN section in user s guide e See the BROILING GUIDE in users guide e Use the broiling pan and grid that came with your range Make sure it is cool e Use the broiling pan and grid that came with your range e See the USING THE OVEN section in user s guide e This is normal Oven temperature too hot or e Oven thermostat needs e See the HOW TO ADJUST THE OVEN too cold adjustment THERMOSTAT section in user s guide Clock and timer does not work e The plug on range is not completely inserted in the electrical outlet e A fuse in your home may be blown or the circuit breaker tripped e Improper oven controls setting Oven light does not work e The light bulb is loose or defective e The plug on range is not completely inserted in the electrical outlet LGE Internal Use Only e Make sure the electrical plug is inserted into a live properly grounded outlet e Replace the fuse or reset the circuit breaker e See the USING THE CLOCK AND TIMER section in user s guide e Tighten or replace the bulb e Make sure the electrical plug is inserted into a liv
49. oor is very heavy LGE Internal Use Only 1 1 Copyright 2009 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 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 removing the fuse or switching off the circuit breaker Ah WARNING e ALL RANGES CAN TIP e INJURY TO PERSONS COULD RESULT e INSTALL ANTI TIP DEVICES PACKED WITH RANGE e SEE INSTALLATION e DO NOT step or sit on the door and install the Anti Tip Bracket 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 To reduce the risk of tipping of the range the range must be secured by properly installed anti tip devices To check if the bracket is installed properly Warming drawer grasp the top rear edge of the Range and carefully attempt to tilt it forward Verify that the anti tip devices are engaged Storage drawer Remove drawer and verify leveling leg is inserted
50. ou time and expense The list includes common occurrences that are not the result of defective workmanship or materials in this appliance PROBLEMS POSSIBLE CAUSES SOLUTIONS Range is not level e Poor installation e Place oven rack in center of oven Place a level on the oven rack Adjust leveling legs at base of range until the oven rack is level e Poor floor e Be sure floor is level and is strong and stable enough to adequately support range e Floor is sagging or sloping e Contact a carpenter to correct the situation e Kitchen cabinet alignment may e Be sure cabinets are square and have make range appear unlevel sufficient room for range clearance Top burners do not light or le The plug on range is not e Make sure the electrical plug is inserted do not burn evenly completely inserted in the into a live properly grounded outlet electrical outlet e Burner slits on the side of the e Remove the burners and clean them burner may be clogged Check the electrode area for burned on food or grease See the CARE AND CLEANING OF THE RANGE section in user s guide e Improper burner assembly e Make sure the burner parts are installed correctly See the CARE AND CLEANING OF THE RANGE section in user s guide Burner flames very large or e Improper air to gas proportion e If range is connected to LP gas contact the yellow technician who installed your range or made the conversion Surface burners light but the e The oven g
51. pyright 2009 LG Electronics Inc All right reserved 10 16 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE 1 Oven hot 1 Check the Resistance of the Relay 2 F 6 1412 3 41 2 441 2 3 4 5 6 7 8 9 17273 4 5 617 819 1012 CNO3 Se dE CNI4 OUOUOU CNe RER Eer deeg BEKI REECH NU LGE Internal Use Only 10 17 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE Oven too hot error F 6 error Oven is hot F6 Disconnect the power and main oven sensor Check the main oven sensor value measure the resistance after cooling down Normal approximately 1 06 kQ at 65F 1 12 kQ at 85F Yes Replace the main oven sensor Remove the Power relay PCB EBR60969203 harness Check the bake relay damage measure the resistance l wv Welded Normal Copyright 2009 LG Electronics Inc All right reserved 10 18 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE Replace the power PCB EBR60969203 END Check the broil relay damage measure the resistance Welded Normal Continuity Infinite Replace the power PCB EBR60969203 Replace the main PCB EBR60969303 LGE Internal Use Only 10 19 Copyright 2009 LG Electronics Inc All right rese
52. range handling the sheet metal part Sharp edge may be present and you can cut 4 yourself To remove the igniter a Perform step 1 3 on this page b Remove the 2 screws and then remove the 1 Turn off the electrical supply and gas supply igniter going to the range 2 Remove the oven door and remove the racks from inside the oven 3 To remove the broil Burner assembly a Remove the wire cover by removing the screw b Remove the 5 screws in the order for easily removing c Remove the broil burner assembly a Wire cover screw Copyright 2009 LG Electronics Inc All right reserved 3 9 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS OVEN BOTTOM THE FRAME GUIDE AND THE BURNER ASSEMBLY 1 Turn off the electrical supply and gas supply 6 To remove the nozzle case going to the range Remove the screw and then remove nozzle 2 Remove the drawer and then disconnect the case igniter plug Igniter plug 3 Remove the oven door and racks from inside of the oven 7 To remove the bake burner assembly 4 To remove the oven bottom Remove the 2 screws and then remove the Remove the 2 screws and then remove oven burner assembly bottom Ch 8 To remove the igniter 5 To remove the flame guide Remove the 2 screws and then remove the igniter Remove the 4 screws and then remove flame guide LGE Internal Use Only 3 10 Copyright 2009 LG Ele
53. rawer does not slide e The drawer is out of alignment e Fully extend the drawer and push it all the smoothly or drags way in See CARE AND CLEANING OF THE RANGE section in user s guide e Drawer is over loaded or load is e Reduce weight Redistribute drawer contents unbalanced LGE Internal Use Only 11 4 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes EV INTRODUCTION II LRG3091SB For Model LRG3091SW CONTROLLER PARTS COOKTOP PARTS UI ke lt D am O O m CAVITY PARTS DRAWER PARTS OWNERS TEMPLATE CARD F Q o SS NK Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 12 2 LGE Internal Use Only EV DOOR PARTS Il LRG3091SB For Model LRG3091SW Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 2 4 LGE Internal Use Only SEN S CONTROLLER PARTS Copyright 2009 LG Electronics Inc All right reserved 12 5 LGE Internal Use Only Only for training and service purposes EV COOKTOP PARTS Copyright 2009 L
54. rewdriver blade width approximately 3 32 across e Nut drivers 13 82 or 10mm LPG Natural 1 PREPARE RANGE FOR CONVERSION 1 Turn off gas supply to the range 2 Turn off the electrical power to the range 44 CAUTION e If the gas supply to the range is disconnected for any reason see the installation instructions for proper connection and safety precautions LGE Internal Use Only 5 1 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CONVERSION TO LP GAS l e Turn off the electrical supply and gas supply going to the range 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 gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 4 CONVERTING THE SURFACE BURNERS Remove the conversion kit see illustration below LP orifice spuds have a orifice code on the top or the side denoting the location on the range where it is to be installed Conversion Kit Denotes orifice code Broil and Bake burner orifices Top burner orifices Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes 1 Remove grates burner caps and burner heads 2 Remove the brass orifice spud in the chimney of each burner
55. rved Only for training and service purposes CHECKING FLOW CHART BY FAILURE 1 Keypad Failure 1 Check the Oven lock operation 2 F 3 Error 2 Check the mechanical malfunction of key Copyright 2009 LG Electronics Inc All right reserved 10 20 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE No key input Key does not input Check the oven lock operation Nomal unlock Cancel the Door locking press the start key for three seconds Yes Check the control panel and END Find the mechanical malfunction of key Yes Replace the control panel Replace the main PCB EBR60969303 LGE Internal Use Only 10 21 Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE Oven lamp does not operate Disconnect the power Check the looseness of oven lamp terminal and harness Reconnect In case of the defective harness Check the looseness of connector replace or fix Power PCB CNO2 Reconnect 10 22 CHECKING FLOW CHART BY FAILURE Check the oven lamp measure the resistance Normal approximately 20 40Q Abnormal infinite Infinite Replace the oven lamp Replace the power PCB EBR60969203 No Replace the main PCB EBR60969303 Yes END 10 23 TROUBLE SHOOTING BEFORE CALLING FOR SERVICE Before you call for service review this list It may save y
56. using a 13 32 or 10 mm nut driver 3 Install the LP orifice spuds into their correct positions as described previously BURNER OUTPUT RATINGS BTU HR LP Propane Gas 10 W C P BTU RATE ORIFICE CODE BURNER LRG3091S LRG3091S 280 fF E 10 000 Q CR 9100 M BROIL 13500 E BAKE 18 000 YN Denotes orifice code q D A KE Top burner orifices Broil and Bake burner orifices Orifice Locations for LP Gas LRG3091S LGE Internal Use Only CONVERSION TO LP GAS e Turn off the electrical supply and gas supply going to the range 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 gas range handling the sheet metal part Sharp edge may be present and you can cut yourself BURNER OUTPUT RATINGS BTU HR Natural Gas 5 W C P BTU RATE ORIFICE CODE BURNER LRG3091S mees ee E R mo D DE 17 000 TH DI mo LP BROIL am A BAKE 18 000 OTN Denotes orifice code a 4 eo E Kg Broil and Bake Top burner orifices burner orifices Orifice Locations for LP Gas LRG3091S LGE Internal Use Only 4 To prevent leakage make sure the orifice spuds are securely screwed into the gas supply tubes 5 For the right front burner of LRG3091S the choke and self threading screw will be needed as shown Fig Insert the c
57. ximately 500F after end of the self clean or lock out feature is reactivated The motor operates to unlock door at that time Copyright 2009 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE OVEN TEMPERATURE SENSORS 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 44 CAUTION e Be careful when you work on the gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 1 Turn off the electrical supply and gas supply going to the range 2 Open the oven door and remove the racks from the oven 3 To remove an oven temperature sensor a Remove the 2 screws b Remove the connecter in the cavity To get the connecter pull the wire toward the cavity c Remove the oven sensor L i e d Oven temperature sensor Copyright 2009 LG Electronics Inc All right reserved 3 13 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVIING amp REPLACING THE WARMIING DRAWER 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 sev
58. your building e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions e If you cannot reach your gas supplier call the fire department 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 hot LG Electronices assumes no responsibility for any repairs made on our products by anyone other than Authorized Service Technicians Copyright 2009 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes TABLE OF CONTENTS PAGE CENENA NEE 1 1 1 5 Important safety Idee EE 1 1 1 3 e Model A Serial number label and tech sheet locations cee reece ete eee eee eee eee eee eens 1 4 e Specifications Eeer 1 5 USING YOUR ING eegen 9 1 2 4 eee gc clbiisuiicll Mko ee ee ee ee ee ee eee eee 0 4 e Control panel POTS Aa 2 0 g DA To turn on on the surface burners Setting the Clock Start Clean Off To turn On Off the oven light Timer On Off Warm Options Hold 3 sec pad 6 types of category Bake Timed Bake Delayed timed Bake Broil Warm Time cook with warm Oven lockout Changing hour mode on clock 12HR 24HR Proof Self
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