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30” Freestanding Electric Range SERVICE MANUAL

1. Copyright 2007 LG Electronics Inc All right reserved 8 3 LGE Internal Use Only Only for training and service purposes SCHEMATIC DIAGRAM A WARNING AC INPUT NOTE Schematic diagram shows door POWER MUST BE switch In the cook position with the oven DISCONNECTED BEFORE Le ATN N door open and elements off 4 RO WH SERVICING THE APPLIANCE Q RECEPTACLE 120V x RADIANT COOK TOP WARMING ZONE LF 2500W approx 23Q ob GEZ RY RF Right Front LR RR COOKTOP 1700W inner approx 32Q 4 RF 2700W Dual approx 562 Sch RY13 LR COOKTOP CR 100W approx 570Q WIRE COLORS RD RED RY14 RF 9 COOKTOP RY15 RF 12 COOKTOP RY 16 LF COOKTOP rrr ears CN2 PRI SEC CN3 Pero ai E CHE 3 TRANSFORMER B CNI H o Oo Bw y o WH d ET nL OVEN LAMP 8 DOOR LOCK d T or SWITCH Sa el SE Di fa oo all DOOR MOTOR 8 BL WH 3 RS ae CONV FAN CON BK DOOR SWITCH Tou W DRAWER RY8 DLB RY CONV CONV HEATER l l l RY7 l l 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 ra
2. 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Check the loose oven sensor connector Check the oven sensor measure the resistance after cooling down Normal approximately 1 09kQ Replace the oven relay PCB 012A Yes Replace the main PCB 009F l ey Replace the oven sensor END Refer to the appendix A Copyright 2007 LG Electronics Inc All right reserved 6 7 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No heating All or a part of cook top heaters Disconnect power Check the loose connector board 011D PCB to cook top heaters and harness defective or not Reconnect lf defective harness replace or fix Check the loose connector main PCB O09F CN9 and CN16 Continued on the next page LGE Internal Use Only 6 8 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No Yes Remove the cook top relay PCB 011D harness and pull the cook top relay PCB 011D forward from the PCB case Inspect the cook top relay PCB 011D Wide pattern Live part blown out pin to pin short or connector harness damaged Yes Repairable by yourself Yes Repair and fix Replace the y Cook top relay PCB 011D Replace the main PCB 009F END END Copyright 2007 LG Ele
3. END e JIII v yvy y Reconnect Remove the main PCB 009F harness END and pull the PCB 009F forward from the PCB case Copyright 2007 LG Electronics Inc All right reserved 7 3 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY F CODE 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 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY F CODE 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 the loose oven sensor connector 7 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 f9 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY F CODE Checking the loose connector Front main PCB CN6 Yes Check the loose connector main PCB CN6 and look for harness terminals damaged or not Reconnect and replace the bad harness Yes Remove the main PCB 009F harness END
4. Website http biz lgservice com LG 30 Freestanding Electric Range MODEL LSC5683WW LSC5683WB LSC5683WS CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL April 2008 P NO MFL388379704 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 Wrong repairs may result in considerable danger If you need repairs contact an LG Service Center or your dealer e If the supply cord is defective it must be replaced by a special cord or assembly available from manufacturer or substance or its service agent 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 Ah 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 dea
5. OPTIONS PAD 7 types of category 1 CONVECTION AUTO CONVERSION 1 Press OPTIONS pad once 2 Press 1 pad for ENABLE or 2 pad for DISABLE 3 Press START pad 2 THERMOSTAT ADJUSTMENT The oven temperature can be adjusted from 35 F 19 C to 35 F 19 C Note The thermostat adjustments made with this feature will just change Bake Convection Bake and Convection Roast temperature To increase the oven temperature 1 Press OPTIONS pad twice 2 Press the desired temperature 3 Press START pad To decrease the oven temperature 1 Press OPTIONS pad twice 2 Press the desired temperature 3 Press the OPTIONS pad once 4 Press START pad 3 LANGUAGE SELECTION English or French 1 Press OPTIONS pad 3 times 2 Press 1 pad for ENGLISH or 2 pad for FRENCH 3 Press START pad 4 PREHEATING ALARM LIGHT ON OFF 1 Press OPTIONS pad 4 times 2 Press 1 pad for ON or 2 pad for OFF 3 Press START pad LGE Internal Use Only THEORY OF OPERATION 5 BEEPER VOLUME 8 CONVECTION BAKE 1 Press OPTIONS pad 5 times CONV Desired 2 Press 1 pad for loud level BAKE Temp START 2 pad for normal level 3 pad for low level 9 CONVECTION ROAST 4 pad for mute level 3 Press START pad CONV Desired ROAST Temp SP 6 TEMPERATURE UNIT F or C 1 Press OPTIONS pad 6 times 10 FAVORITES 2 Press 1 pad for F FA
6. There is 3 PCB power control board When you ae WARNING check PCB check the proper pcb of default heck mai e DISCONNET power supply cord ee from the outlet before servicing e Replace all panels and parts before NOTE Refer to the page 5 1 5 4 for composition of control board operating Cook top Relay PCB Main PCB e RECONNECT all grounding devices 7 S 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 Oven Sharp edge may be present and you can cut Relay PCB yourself 1 Turn off the electrical supply going to the range 2 Pull the range away from the wall so that you can 5 To remove the control power supply access the rear panel a Disconnect 2 connectors 3 Remove back cover amp control cover See step b Remove the two screws 3 4 on page 3 2 2 Connector 2 Screws LGE Internal Use Only 3 3 Copyright 2007 LG Electronics Inc All right reserved 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 cD Unplug the cord or
7. NOTE Oven sensor is so sensitive to temperature Do test after cooling down sufficiently Warming Drawer Sensor 1 Refer to page 3 12 for the servicing procedure Normal Approximately 2 Measure the resistance after cooling down i KQ ek 0 Multiple meter scale R x 1000 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 2 Measure the resistance after cooling down Multiple meter scale R x 1000 CO 7 O CO q O Continuity Infinite Copyright 2007 LG Electronics Inc All right reserved 4 3 LGE Internal Use Only Only for training and service purposes Broil heater Bake heater Convection heater 0 Warming Drawer heater LGE Internal Use Only 1 Refer to page 3 6 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x1 1 Refer to page 3 7 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x1 1 Refer to page 3 8 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x1 1 Refer to page 3 12 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x1 Normal Approximately 14 Q9 10 If not replace NOTE Q Value was tested at room temper
8. ZS JAN Ly G F d 1 X AN CAUTION 5 To remove the door switch a If not already done raise the cooktop e Be careful when you work on the a see page 3 4 for the procedure electric range handling the sheet b Remove the door switch from the range metal part To do this use a ratchet extension or a small Sharp edge may be present and you can cut socket and tap it out of the hole with a yourself hammer 1 Turn off the electrical supply going to the range 2 Open the oven door 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 Switch LGE Internal Use Only 3 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE BROIL ELEMENT b Pull the element forward so that you can ae WARNING access the terminals and canned the wires 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 2 Terminals 1 Turn off the electrical supply going to the range 2 Open the oven door and
9. bad wiring connection at element or terminal block Surface element will not heat e Defective Surface units control Higher than low medium PCB e Defective Surface element e Low line voltage e Test and or replace PCB Refer to the page 6 1 6 4 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 Refer to the page 6 5 6 7 e Verify all connections are clean and tight replace broken wires e Test and or replace cook top PCB Refer to the page 6 8 6 9 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 HS Hot surface Warning message does not light up e Failed oven lamp e Circuit breaker or fuse is open e Loose or bad wiring e Defective light socket e Defective door switch Oven light fails to operate Refer to the page 6 10 Oven does not begin clean Bad wiring cycle e Bad latch system e Programming error e Defective a point of contact with Oven stop for Self clean cycle door switch Copyright 2007 LG Electronics Inc All right reserved 8 1 Only for tra
10. 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 ff cook top and then unplug the 2 connectors at the back by squeezing side tabs 2 Connectors Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Turn over the cook top assembly Bracket screws 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 LGE Internal Use Only COMPONENT ACCESS REMOVING THE DOOR LATCH amp DOOR SWITCH b Remove the door latch from the burner box a WARNING and unhook the actuating rod 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 Y Rod e GER A D Ee t gt yeeros Y ro i ve E 77 e f Ge
11. handling the sheet wain 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 LGE Internal Use Only 3 11 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE WARMING DRAWER ELEMENT amp TEMPERATURE SENSOR To remove the warming drawer element ae WARNING 1 Remove the two bottom bracket screws 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 amp CAUTION 2 rear bracket screws _ re paan 2 bottom bracket screws ie eae ae ees Rae ee 2 Remove the two rear bracket screws and disconnect the wires from the terminals e Be careful when you work on the To remove the warming drawer temperature electric range handling the sheet sensor metal part 1 Unplug the cord or disconnect power Sharp edge may be present and you can cut 2 Pull the range away from the wall so that you can yourself auess the back cover 3 Remove the back cover To Remo
12. 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 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 unit 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 s
13. purposes COMPONENT ACCESS REMOVING THE BACK CONTROL COVER AND KEY MEMBRANE SUPPORT ASSEMBLY 6 Remove 7 screws of KEY Membrane assembly and ae WARNI NG separate PCB assembly e DISCONNET power supply cord p 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 7 Remove the 4 screws of the controller sub assembly injury death or electrical shock from the supporters 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 3 screws from the rear control cover and remove the cover ft Ge aA ies TEEN 8 Pull the controller sub assembly and lift it up from the supporters ZRf a ee e E e ee CS A e ee a 9 For servicing the KEY Membrane the controller sub 5 Remove the 5 screws of PCB assembly and separate assembly should be separated in whole PCB assembly after unpluging the connectors PCB Assembly Copyright 2007 LG Electronics Inc All right reserved 3 2 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE CONTROL POWER SUPPLY AND POWER CONTROL BOARD PCB 4
14. 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 ees j T 2 Rear bracket Screws Copyright 2007 LG Electronics Inc All right reserved 3 6 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING THE HIDDEN BAKE ELEMENT 1 Unplug range of disconnect power 7 Bend the insulation glass fiber up 2 Pull the range out of its mounting location so that ou can access the rear of the unit 3 Remove the rear panel from the unit See step 3 on page 3 2 for procedure a E FEFE Hidden bake element 277 OS a iF r Y CO 3 d 8 Remove two screws and bend up two flanges Flanges 9 Carefully pull the hidden bake element and its 4 Remove the 2 screws of mounting bracket out of the range power cord assembly box and 1 ground screw 5 Set the box aside 6 Cut the 9Ypoints of flange and remove the bake heater cover LGE Internal Use Only 3 7 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT ACCESS REMOVING THE CONVECTION ELEMENT FAN BLADE AND FAN MOTOR 1 Disconnect power and remove oven racks 2 Pull the range out of its mounting location so that you can access the rear of the unit 3 Remove the rear panel from the unit See step 3 4 on page 3 2 f
15. 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 above 150 F the meter Above 150 F should indicate continuity 0 Q gt continuity 0 Q Copyright 2007 LG Electronics Inc All right reserved 4 7 LGE Internal Use Only Only for training and service purposes Dual surface element Right Front RF 1 Refer to page 3 4 for the servicing procedure 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 E1 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 ee a _ 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 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 ee e j should indicate continuity 0 Q gt continuity 0 amp 2 LGE Internal Use Only 4 8 Copyright 2007
16. the defective harness Check the power transformer Refer to the below Primary 3 S2 Gi P K d ug T SL Secondary FI black white 25 28 measure LVT coil resistance Normal approximately Fig 1 Replace the Main PCB 009F END LGE Internal Use Only 6 4 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Oven does not heat F 7 No heating lf current oven temperature does not exceed 150 F and During cook less equal 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 the loose of bake broil convection heater terminal and harness Reconnect lf defective harness replace or fix Check the bake heater measure the resistance after cooling down Normal approximately 17Q Continued on the next page Copyright 2007 LG Electronics Inc All right reserved 6 5 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Replace the bake heater Check the broil heater measure the resistance after cooling down Normal approximately 14Q Replace the broil heater Check the convection heater measure the resistance after cooling down Normal approximately 17 Replace the convection heater Continued on the next page END LGE Internal Use Only 6 6 Copyright
17. 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 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 Insulation cover LGE Internal Use Only 3 15 Copyright 2007 LG Electronics Inc All right reserved 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 Bs WARNING Liner Hole 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 a CAUTION gasket make sure that all of the clips are seated in their liner holes and that the en
18. 07 LG Electronics Inc All right reserved Ski LGE Internal Use Only Only for training and service purposes EV DOOR PARTS I For Model LSC5683WW LSC5683WB Copyright 2007 LG Electronics Inc All right reserved e UE LGE Internal Use Only Only for training and service purposes EV CONTROLLER PARTS d i Mee j For Model LSC5683WB LGE Internal Use Only 10 5 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV COOKTOP PARTS Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LGE Internal Use Only EV DRAWER PARTS I For Model LSC5683WW LSC5683WB 6 9 eee Oe ee E For Model LSC5683WB For Model Se LSC5683WW LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV CAVITY PARTS SC ei d d r A FP Z Ces tgp s Niaz J R Ke p f YY El Y XY ES ses G gt iy gt LGE Internal Use Only 10 9 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes LG Electron
19. 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 Copyright 2007 LG Electronics Inc All right reserved 4 1 LGE Internal Use Only 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 6kQ 10 If not replace Abnormal Infinite open below 5Q shorted Micro Switch 1 Refer to page 3 10 for the servicing procedure ge RE normally open type 2 Measure the resistance P Multiple meter scale R x 1000 MTA 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 2 Q 10 Multiple meter scale R x 1000 If not replace LGE Internal Use Only 4 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 1 Refer to page 3 11 for the servicing procedure Normal Approximately 2 Measure the resistance after cooling down ee KQ 7 10 Multiple meter scale R x 1000 not replace Oven Sensor NOTE Q Value was tested at room temperature 7 7F 25 C
20. CB CN2 pin 1 and 3 Check voltage Main PCB 009F CN14 Pin 10 and 12 CN14 Pin 10 and 12 The voltage should be 4 5V 5 5V Main PCB 009F No Yes Replace the main PCB 009F Replace the cook top display PCB 010E END END Copyright 2007 LG Electronics Inc All right reserved 6 1 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No display No power Enter key input Some beep sound Warming drawer Check AC input voltage of Main PCB D display blank Main PCB CN2 pin 1 and 3 Check voltage Main PCB 009F CN16 Pin 11 and CN9 Pin1 CN16 Pin11 Voltage should be 4 5V 5 5V CNQ Pin1 Main PCB 009F No Yes Replace the main PCB 009F Replace the warming drawer display PCB 011D END END LGE Internal Use Only 6 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Blank display Enter key input Some beep sound Yes Oven display No Check AC input voltage of Main PCB D blank Main PCB CN2 pin 1 and 3 Yes Replace the main PCB 009F Copyright 2007 LG Electronics Inc All right reserved 6 3 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No display No power D Check the harness of between L1 N No Yes Yes il No Replace
21. GE Internal Use Only Only for training and service purposes Single surface units Left Front LF 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 terminal and 1A The meter should indicate 46 Q 10 Normal Approximately 46 Q lf not replace 5 Touch the ohmmeter test leads to limiter terminals 1A and 2A The meter should 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 anos ee i should indicate continuity 09 gt continuity 0 2 4 6 Copyright 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 Q If not replace 5 Touch the ohmmeter test leads to limiter terminals 1A and 2A the meter
22. LG Electronics Inc All right reserved Only for training and service purposes COMPOSITION OF CONTROL Controller assembly PCB case assembly Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes Main PCB P N 6871W1N009F Back Cook top display PCB P N 6871W1N010E kb KA Front Back Cook top relay PCB P N 6871W1N011D Oven relay PCB P N Front Back 5 1 LGE Internal Use Only COMPOSITION OF CONTROL Main PCB P N 6871W1NO09F Au it Ea Main function gt Supply a DC power source GND 5V 12V Vry oven heater switching 30V gt Oven heater control DLB Broil Bake Warming drawer convection gt Oven display control gt Warming drawer display control gt 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 vY vY vY vV VvV VvV V LGE Internal Use Only SR Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPOSITION OF CONTROL Cook top display PCB P N 6871W1N010E NV DOIT Ke el Main function gt Single radiant surface elements Right Rear Left Rear Lef
23. Low gt START TIME start time START LGE Internal Use Only Desired time Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes THEORY OF OPERATION WARMING DRAWER The rack can be used in 2 ways To set the warming drawer control 1 Press the ON OFF pad at the WARMING DRAWER position The indicator light will flash If no further pads are pressed within 25 seconds the display will clear 2 Press A once to turn on VA the power level for high 5 level or wv for Low 1 level 3 Use the v Hl pad to VA choose the desired power setting Adjustable at any time while the Drawer is ON 4 When the food is ready for ON removal press the ON OFF l OFF P Warming Drawer Rack Warming Drawer Rack pad once to turn off in upward position in downward position 44 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 In the upright position to allow low profile food ON items to be placed both under and on top of the OFF rack for example rolls or biscuits on top of the rack and a casserole dish underneath e In the downward position to allow you to place light weight food items and empty cookware for example rolls or pastries and dinner plates on the rack Set the Warming Drawer rack in
24. 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 electric 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 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 A WARNING e Do not repair or replace any part of the appliance unless speci
25. VORITES or 2 pad for C Once Bread SE 3 Press START pad Twice Meat 3 times Chicken 7 SABBATH MODE 1 Press OPTIONS pad 7 times and then press 1 pad to set sabbath feature enable 11 COOK amp WARM 2 Press START pad 3 Set the BAKE or Timed BAKE Delay GEIER START Timed Bake 4 Press START pad 5 Press and hold the OPTIONS pad for 3 seconds 12 OVEN LOCKOUT 6 Press 1 pad to set sabbath ON Press and hold the START pad for 3 seconds To Cancel SABBATH mode to activate or reactivate LOCKOUT 1 Press OPTIONS pad for 3 seconds 2 Press 2 pad to set sabbath mode OFF 3 Press START pad 13 CHANGING HOUR MODE ON CLOCK Note You may change the oven temperature once baking has 12HR 24HR started Press BAKE enter the oven temperature change 170 to 550F and press START For Jewish Holidays Press and hold the START pad for 3 seconds only Remember that the oven control will no longer beep or display any further changes once the oven is set for the Sabbath feature Ken Press 1 pad for 12 hour START 2 pad for 24 hour 6 BAKE TIMED BAKE DELAYED TIMED BAKE Desired 14 PROOF BAKE gt temperature START PROOF gt START COOK e TIME yaa 15 SELF CLEAN SELF CLEAN i START START na Desired START Once 38 hour TIME start time Twice 2 hour 3 times 4 hour 7 BROIL BROIL once Hi START Desired twice
26. and pull the PCB 009F 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 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY F CODE Warming drawer sensing error F 5 F 6 error Shorted Sensor Warm Drawer Thermistor short Over 1 min after warm During operate drawer operates Opened Sensor Warm Drawer Thermistor open Over 1 min after warm During operate drawer operates Warming drawer sensing failed Disconnect power Check the loose warming drawer sensor connector Reconnect Check the warming drawer sensor measure the resistance after cooling down Normal approximately 4 6kQ END No Replace the warming drawer sensor Yes Continued on the next page END Copyright 2007 LG Electronics Inc All right reserved sf LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY F CODE Checking the loose connector Front main PCB CN5 Yes Check the loose connector main PCB CNS and look for harness terminals damaged or not l M D SE Gay ios Reconnect and replace the bad harness Remove the main PCB 009F harness and pull the PCB 009F forward from the PCB case Inspect connector pin solder of CN5 Back main PCB CN5 Back x If pin solder is cracked repair an
27. ass 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 watts Bake element 3400 watts Convection System Yes Convection element Yes 800w 120v of Racks 3 2 standard 1 Split Interior oven light 120V 40Watts Proof Yes Cook amp warm Yes Favorites Yes 1 Bread 2 Meat 3 Chicken Door lockout Yes Broiler pan Yes Type Warming drawer oe Element 600 watts Warming rack Yes Dimensions Oven Interior W x H x D 24 1 2 x 20 1 4 x 19 3 8 inch Exterior Width 29 7 8 Exterior Height 36 cooktop 47 5 s backguard top Exterior Depth 25 11 16 Door 28 with handle Net weight Kg 82 kg 181lbs Power Rating 57A 120 240V 50A 120 208V LGE Internal Use Only 1 4 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes THEORY OF OPERATION 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 Operation Bake Mode Top and hidden bottom elements operate during bake Bake can be used to cook foods whi
28. ature 77F 25 C Be careful the element is so sensitive to temperature Normal Approximately 17 Q 10 If not replace NOTE Q Value was tested at room temperature 77F 25 C Be careful the element is so sensitive to temperature Normal Approximately 17 Q 10 If not replace NOTE Q Value was tested at room temperature 71F 25 C Be careful the element is so sensitive to temperature Normal Approximately 95 Q 10 If not replace NOTE Q Value was tested at room temperature 77F 25 C Be careful the element is so sensitive to temperature 4 4 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 lf not replace Oven lamp 1 Measure the resistance after cooling down Normal Below 5 Q Multiple meter scale R x1 If not replace Copyright 2007 LG Electronics Inc All right reserved 4 5 L
29. ch are normally baked Oven must be preheated Broil element 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 O CL a Broil element Lecker M ed EE a d V gt eee E e Weeer EE ee NEE NW Hidden bake SC lt n SS element Copyright 2007 LG Electronics Inc All right reserved Only for training and service 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 ha re Ss Convection 2 aa element INE A e E gt S Cet Kosa See Hidden bake element Cooking Guide Refer to owners manual for following recommendations only as a guide for times and temperature 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 THEORY OF OPERATION CONTROL PANEL FEATURES A sin
30. ctronics Inc All right reserved 6 9 LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE Oven lamp does not operate Oven lamp does not operate Disconnect power Check the loose of oven lamp terminal and harness Reconnect lf defective harness replace or fix Check the oven lamp measure the resistance Normal Below 5 Q Abnormal infinite Infinite LGE Internal Use Only 6 10 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No key input Key does not input Some keys or All keys Replace the main PCB Yes No END Replace the keypad assembly Copyright 2007 LG Electronics Inc All right reserved 6 11 LGE Internal Use Only Only for training and service purposes FAILURE CODES a 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 F Failure DISPLAY CODES Before doing any action perform the following step1 3 Step1 Unplug range or disconnect power Step2 Check if connector is fully seated or not Note All units in the first few days of use should be checked for mis wiring or loose connections DISPLAY CAUSE CORRECTIVE ACTION A Per
31. d re use Yes LGE Internal Use Only 1 6 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY F CODE 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 012A harness and pull the oven relay PCB 012A forward from case Check the bake relay welded or not measure the resistance we 6B70WINOIZA SE Normal Continuity Infinite Replace the oven relay PCB Continued on the next page END Copyright 2007 LG Electronics Inc All right reserved ig LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY F CODE Yes Check the broil relay welded or not measure the resistance 68 70WINOTZA BKE dia Welded Normal Continuity Infinite Replace the oven relay PCB 012A Replace the main relay PCB 009F END LGE Internal Use Only 7 10 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes TROUBLE SHOOTING e Bad power control board PCB Oven not operating e Power outage Oven element does not e No line voltage heat e Loose or bad wiring e Defective element e Bad Power control board PCB Surface element barely heats e Loose or
32. ds of the gasket are e 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 Stan 5 SP E Door gasket e A Copyright 2007 LG Electronics Inc All right reserved 3 16 LGE Internal Use Only Only for training and service purposes COMPONENT ACCESS REMOVING A SIDE PANEL 7 Remove the two screws from the left or right side aa WARNING panel e DISCONNET power supply cord e EDN we from the outlet before servicing E e 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 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
33. e top rear edge of the Range and on the back guard ofa range carefully attempt to tilt it forward verify that the anti tip devices are engaged Children climbing on the range to reach items 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 Jee LGE Internal Use Only Only for training and service purposes GENERAL IMPORTANT SAFETY INSTRUCTIONS 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 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 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 Use Only Dry Potholders Moist or damp potholde
34. eaks e Oven racks covered with foil e Do not cover racks with foil e Glass installed backward e Install tempered glass toward 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 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 ie 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 10 Oven temperature too hot e Oven sensor needs to be adjusted See the adjusting your oven temperature or too cold in owners manual
35. ector pins Q value should read OPEN gt if there is any problem Replace warming drawer sensor E If you couldn t find any problem Replace Control PCB 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 Q 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 A Perform step 1 through 2 above B Open the back panel and Disconnect sensor from harness Measure Q value between connector pins approximately 1090 Q at room temperature 77F 25 gt f 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 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY F CODE Key short error F 1 error pn Key shorted When some key is continuously short for 60 seconds E Key short error F 1 Plugged out and in the power remove keypad tail and check F 1 error recur or not after one minute Yes Replace keypad or keypad assembly Remove
36. either position as shown below Fig 1 Note The Warming Drawer will shut off automatically after 3 hours To Operate the Warming Drawer The purpose of the Warming Drawer is to keep hot cooked foods at serving WARNING temperature Always start with hot food It is not recommended to heat cold food in the Warming Drawer All food placed in the Warming Drawer ON should be covered with a lid or aluminum foil to maintain quality Do not use plastic wrap to cover food Warming Plastic may melt onto the drawer and be Drawer very difficult to clean Use only utensils Control and cookware recommended for oven use in the Warming Drawer Copyright 2007 LG Electronics Inc All right reserved 2 9 LGE Internal Use Only 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 Top Display PCB Appliance Outlet Cook Top Relay PCB A N Door Locking Motor amp Micro Switch Surface Elements Door Latch Assembly Oven Light RE Convection Motor Convection Heater M Oven Relay PCB f Warming Drawer ee ee Sege N Sensor Warming Drawer a 8 Heater LGE Internal Use Only 3 1 Copyright 2007 LG Electronics Inc All right reserved Only for training and service
37. emoving the Back Control Cover and Key Membrane Support Aesembhy 3 2 e Removeing the Control Power Swpply and Power Control Board PCB 2 2 2s22225 3 3 e Removing the Surface Element and the Ceramic Glass Cooktop 22 2ereeereereeer nese 3 4 e Removing the Door Latch amp the Door Switch eegen 3 5 e Removing the BROIL element EE 3 6 e Removing the BAKE element EE 3 7 e Removing the CONVECTION element Fan blade and Fan motor 2 2 2seeetreereeer eee 3 8 e Removing the Oven light amp Socket assembly EE 3 9 REMOVING the VCO IAW Cres UE E 3 10 Door locking mechanism EE 3 10 e Removing the Oven temperature Sensor EE 3 11 e Removing the Warming drawer element amp temperature sengeor eee reer rere e tee t eee eee 3 12 e Removing amp Replacing the Lift off Oven Doors 3 13 e Removing the Oven Door Handle A Glass EE 3 14 3 15 dazu Vilehe Aere ee 3 16 REMOVING a Side Panel erein tese a ieceteeecieetiete a sethaateteta een saueneeesy 3 17 LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes COMPONENT TEST ee 4 1 4 8 EHNEN ae 4 1 DOOrl cking Ke e TEE 4 2 e Micro Switch normally open type eenig eg eegggeeege ee eE EE 4 2 o LV re 4 2 OVEN SENSOR riea aiie naa a ae marci a E d e aa 4 3 e Warming Drawer Sensor EEN 4 3 e DOO SWIC E 4 3 Brol EE 4 4 Bake Eet est Eege 4 4 REENEN Healy gees EE 4 4 e Warming D
38. en you will have to push e 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 oven liner paint when you remove the oven light socket in the next step To replace 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 LGE Internal Use Only 3 9 Copyright 2007 LG Electronics Inc All right reserved 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 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 Re
39. ert 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 ay WARNING serious bodily harm or death This symbol will alert you to hazards or unsafe practices which could cause ay 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 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
40. fically 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 44 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 tipped 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 amp WARNING might result from spilled hot liquid food or the range itself lf 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 th
41. form 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 connections 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 Q value between connector pins Approximately 1090 Q 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 DISPLAY CAUSE CORRECTIVE ACTION SHOWS 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 Q value between connector pins Approximately 50kQ at room temperature 77F 25 C Measure value between sensor chassis and any conn
42. gle C A single Left Rear element Warming zone Right Rear element TIMER ON OFF 10 B Dual Right Front Dual element single Left Front element 1 BAKE PAD Press to select the bake function 2 BROIL PAD Press to select the broil function 3 CONVECTION BAKE PAD Press to select baking with the convection function 4 CONVECTION ROAST PAD Press to select roasting with the convection function 5 NUMBER PADS Use to set any function requiring numbers such as the time of day on the clock the timer the oven temperature the start time and length of operation for timed baking 6 START PAD Must be pressed to start any cooking or cleaning function 7 CLEAR OFF PAD Press to cancel all oven operations except the clock and timer 8 CLOCK PAD Press before setting the time of day 9 TIMER ON OFF PAD Press to select the timer feature 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 COOK TIME 1 1 1 1 9 1 SELF 0 OVEN CLEAN Ke LIGHT START TIME 11 12 13 141516 12 COOK amp WARM PAD Press to keep cooked foods warm See the how to set the oven for warming secti
43. ics Inc
44. ining and service purposes e Defective cook top control PCB e Test and or replace cook top PCB e Check lamp and Replace is necessary 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 e Verify power is present at unit e Verify that the circuit breaker is not tripped e Replace household fuse but do not fuse Capacity e Refer to Owner s manual instructions Clock and timer not working e Power outage Oven does not bake e Loose or bad wiring Selection is set for to BAKE or TIMED BAKE e Defective BAKE element e Defective electronic clock e Door switch sensing error 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 poi
45. move the two mounting screws from the latch drive screws SCrews 6 Unhook the Latch rod from the cam Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 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 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 approximately 500F after end of the self clean or lock out feature is reactivated The motor operates to unlock door at that time LGE Internal Use Only 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 amp CAUTION e Be careful when you work on the electric range
46. nge NOTE The following individual circuits are for use in diagnosis and are shown in the ON position BAKE COOK amp WARM PROOF Hr BROIL RY6 BAKE BAKE HEATER BROIL RY8 HK BROIL HEATER OVEN LIGHT 2 B BK DOOR SWITCH Copyright 2007 LG Electronics Inc All right reserved Je LGE Internal Use Only Only for training and service purposes WARMNING DRAWER Aw d alek SIS TRANSFORMER RY7 y W DRAWER KR a H W DRAWER HEATER WH oE 2 a Sle TRANSFORMER CNI E DOOR LOCK BN il qa DOOR MOTOR 3 d dack BK RY3 H QO S DOOR SWITCH CONV FAN P d BROIL HEATER Lu BAKE HEATER LGE Internal Use Only 9 3 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CLOCK DISPLAY ON CONV FAN RY11 WARMING ZONE Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 9 4 LGE Internal Use Only RR Cook top Element RY12 RR COOKTOP WH HEITE LR Cook top Element f p BK LF COOKTOP R PO SION jaa A TAB3 Geck o A Na TAB4 RF Cook top Element RY15 RF 12 COOKTOP LGE Internal Use Only See Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes EV EXPLODED VIEW INTRODUCTION I For Model LSC5683WW LSC5683WB CONTROLLER PARTS DOOR PARTS CAVITY PARTS DRAWER PARTS Copyright 20
47. nt 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 Oven does not Broil e Loose or bad wiring e Defective BROIL element e Defective Power Control Board Overheating or e Repair or replace wiring runaway oven e Loose or bad wiring to latch system e Defective Oven Sensor e Bad Power Control Board PCB e Test and or replace Oven Sensor e Test and or replace PCB e Defective latch mechanism e Defective bent door latch lever e Oven is still hot Cool down period after self clean cycle not complete e Replace door latch system e Replace latch lever e This is normal Wait until LOCK icon will goes out e Use oven for baking only e Replace oven door hinge Oven door will not open or latch Premature burnout of bake element Oven door difficult to open e Improper use of oven e g being used to heat the home e Worn or broken broil stop roller LGE Internal Use Only Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes TROUBLE SHOOTING Oven door sagging on one je 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 br
48. on 13 FAVORITES PAD Press to set favorite cooking 14 OPTIONS PAD Press to set 7 types of option category 15 PROOF PAD Press to select a warm environment useful for rising yeast leavened products 16 SELF CLEAN PAD Press to select self cleaning function See the using the Self Clean Oven section 17 OVEN LIGHT PAD Press to turn the oven light on or off 18 DISPLAY A Single surface unit Right Rear Left Rear Left Front B Dual surface unit Right Front C Warming Zone Center Rear Warming Drawer Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes THEORY OF OPERATION A To turn ona single surface unit Right Rear Left Rear Left Front Press ON OFF pad for the desired element 2 Press pad to choose the desired setting 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 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 P
49. or procedure 4 Disconnect the wire connection 5 Remove the four Fan cover screws and set the fan cover aside 6 Remove the two convection element screws and pull the element forward Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes 7 To remove Fan blade remove Nut by screwing clockwise Fan blade can be replaced from inside oven 4 CAUTION 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 8 To remove Fan motor assembly disconnect wire connection and remove the three bracket screws 9 Pull the fan motor assembly forward e Convection Fan Fan motor heater blade Support Fan cover Washer Mounting Screws 3ea ity Inner Outer l LGE Internal Use Only COMPONENT ACCESS REMOVING THE OVEN LIGHT amp SOCKET ASSEMBLY 44 CAUTION e 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 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 ay CAUTION from the front of the ov
50. 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 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 Internal 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
51. rawer heater EE 4 4 EE EE EE 4 5 Applance OUTICT circuit Ee eege EE 4 5 Oven lamp EES 4 5 e Single surface unit LF LR RR EE 4 6 e Warming Zone Wee eee 4 7 SEENEN 4 8 COMPOSITION OF CONTROL EEN 5 1 5 4 e Main PCB EE 5 2 s COOK EE Ee EE 5 3 EE eo 5 4 SE PO D A E e a 5 4 CHECKING FLOW CHART BY FAILURE MODE ENEE 6 1 6 11 No display INO DOWEL E 6 1 6 4 OVEN GOSS NOL MAL E 6 5 6 7 SOOK 10D GOES Not MOA E 6 8 6 9 Oven lamp does DOE eegen EES 6 10 hoer 6 11 ESCHER Eege 7 0 CHECKING FLOW CHART BY F CODE ENEE EEN 7 1 7 10 Fa1 CIOL EE 7 1 F 2 fTOF EE 7 2 7 4 F 3 F 4 Ettel 7 5 7 6 dc 7 7 7 8 F Q CIOL vrereerecee ee cee et ee tee ee et eee ee en eee ee eect eeseeneeneeeeeeceesteeceesreuceusrenceseresceseecrseeseseoasenaes 7 9 7 10 TROUBLE SHOOTING E 8 1 8 3 SCHEMATIC DIAGRAM eege 9 1 e STRIP CIRCUITS nun 9 2 9 5 EXPLODED VIE Eet 10 1 10 9 REPLACEMENT PARTS LIST cecceccccccecceccncceceeceeceececeeenenseeennensenennanas 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 dont cover all possible conditions that may occur For further assistance contact your service agent or manufacturer This is the safety al
52. ress pad to choose the desired setting ch B To turn on a dual surface unit o_o 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 E 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 turned ON or OFF by pressing the OVEN LIGHT pad Note The oven light cannot be turned on 1f 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 if you press 5 and 6 it 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 it means 56 minutes 5
53. rs on hot surfaces may result in burns 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 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
54. slot The notch in the hinge arm must be fully seated into the bottomthe slot Fully open the door If the door will not fully open the indentation is not seated correctly in the bottom edge of the slot Push the hinge locks up against the front frame of the oven cavity to the locked position Close the oven door Copyright 2007 LG Electronics Inc All right reserved 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 a WARNING it aside 6 To remove the door handle amp trim for stainless model DISCONNET power supply rd a Remove the 4 door handle ih and lift the deg from the outlet before servicing handle off door trim and slide up the door handle e Replace all panels and parts before operating mn Hande p e RECONNECT all grounding devices ek 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 3 bottom liner screws Copyright 2007 LG Electronics Inc All right reserved 3 14 LGE Internal Use Only Only for
55. 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 LGE Internal Use Only 3 17 Copyright 2007 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 ay 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
56. t Front power level indication gt Dual radiant surface elements Right Front inner outer power level indication gt Dual radiant surface element size indication Right Front inner outer gt Single radiant surface elements warming zone Center Rear power level indication Copyright 2007 LG Electronics Inc All right reserved 5 3 LGE Internal Use Only Only for training and service purposes COMPOSITION OF CONTROL Cook top relay PCB P N 6871W1N011D Main function gt Supply a DC power source GND 12V Vry cooktop heater switching voltage gt Single Radiant Surface Elements Right Rear Left Rear Left Front on off power level relay switching gt Dual Radiant Surface Elements Right Front INNER OUTER on off power level relay switching gt Single Radiant Surface Elements Warming Zone Center Rear on off power level relay switching gt Supervising cook top element hot gt Warm drawer power level 5 level indication Oven relay PCB P N 6871W1N012A 687 1WINOI2A 5J050623 2 Main function gt Oven heater on off relay switching DLB Broil Bake Warming drawer convection LGE Internal Use Only 5 4 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY FAILURE MODE No display No power Enter key input Some beep sound Cook top display Check AC input voltage of Main PCB D blank Main P
57. th 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 2007 LG Electronics Inc All right reserved LGE Internal Use Only Only for training and service purposes TABLE OF CONTENTS PAGE CGENERA BE 1 1 1 4 SIDERO 1 1 1 3 e Model amp Serial number label and tech sheet locations EE 1 4 SPECIFICATIONS EE 1 5 THEORY OF OPERATION dE 9 1 2 5 e General imformation EE 2 1 e Control panel features EE 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 Setting the Clock Start Clean Off and On Off pad To turn On Off the oven light Timer On Off Options pad 7 types of category 1 Convection auto conversion 2 Thermostat adjustment 3 Language selection English or French 4 Preheating alarm light On Off 5 Beeper volume 6 Temperature unit F or C 7 Sabbath mode Bake Timed Bake Delayed timed Bake Broil Convection Bake Convection Roast Favorites Cook amp Warm Oven lockout Changing hour mode on clock 12HR 24HR Proof Self Clean Warming drawer COMPONENT ACCESS vgeeergneege reueg ou bre SEN SNE ee e ee e 3 1 3 17 Component eer le 3 1 e R
58. the main PCB 009F harness and pull the PCB 009F forward from the PCB case Inspect main PCB connector CN11 gt pin to pin short Back e A e GHG Ce Repairable by yourself Repair and fix No Replace the main PCB 009F Copyright 2007 LG Electronics Inc All right reserved Lea LGE Internal Use Only Only for training and service purposes CHECKING FLOW CHART BY F CODE 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 Disconnect power Check the terminal loose of micro switch and door locking motor Check the oven door lock switch micro switch measure the resistance Normally open type Door latch Door latch END open Locked COL oO O CN AAS Continuity Infinite Continued on the next page LGE Internal Use Only l 2 Copyright 2007 LG Electronics Inc All right reserved Only for training and service purposes CHECKING FLOW CHART BY F CODE 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 i
59. urface 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 Model amp Serial Number Location VERIFIED FEV 162280 ASS AN e Emery J p Peertortis ane le ab D L yztzzleuzsu taestte tipi LR52315 VERIFII Ca LS ES x L GA dei Cep CH CO NN oOo CH O CN e e Tech Sheet Location On Low Rear Cover e ke mm Pies Copyright 2007 LG Electronics Inc All right reserved 1 3 LGE Internal Use Only Only for training and service purposes GENERAL SPECIFICATIONS Model Number LSC5683WW LSC5683WB LSC5683WS Overall Width 30 Installation type Freestanding Color availability WH BK STS Control Oven Keypad Cooktop Keypad Display Scroll VFD Electronic clock amp timer Yes Control lock capability Yes Audible preheat signal Yes Special function Option 7 categories 1 Convection auto conversion On Off 2 Thermostat Adjustment 3 Language English or French 4 Preheating alarm light On Off 5 Beeper Volume loud normal low mute 6 Temperature unit F C 7 Sabbath mode Cooktop Material Ceramic gl
60. ve Warming Drawer 4 Remove the sensor cover screw and remove sensor cover 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 Rear bracket screws 6 Pull the sensor forward and unplug the conneciors Copyright 2007 LG Electronics Inc All right reserved 3 12 LGE Internal Use Only Only for training and service purposes 4 Pull the warming drawer away from the range COMPONENT ACCESS REMOVING amp REPLACING THE LIFT OFF OVEN DOOR ah CAUTION 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 door is very heavy To remove the door Fully open the door Pull the hinge locks down Hinge toward Fig 1 the door frame to the unlocked position lt Fig 1 gt Close door to the door removal position which is pproximately 5 degrees refer to the Fig 2 lt Fig 2 gt Lift door up and out until the hinge arm is clear of the slot LGE Internal Use Only To replace the door Firmly grasp both sides of the door at the top 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

30” Freestanding Electric Range SERVICE MANUAL

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30&rdquo; Freestanding Electric Range SERVICE MANUAL

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30” Freestanding Electric Range SERVICE MANUAL