LG LRG3091SB Service Manual Download

Page: 1 / 94

30” Freestanding Gas Range

SERVICE MANUAL

MODEL: LRG3091ST

LRG3091SB
LRG3091SW

CAUTION

BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.

Website http://biz.lgservice.com

P/NO : MFL63290104

August, 2010

Printed in Korea

삼

흥

정

판

Internal Use Only

Summary of Contents for LRG3091SB

Page 1: ...SERVICE MANUAL MODEL LRG3091ST LRG3091SB LRG3091SW CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com P NO MFL63290104 August 2010 Printed in Korea 삼 흥 정 판 Internal Use Only ...

Page 2: ...side of warming drawer The power supply of the appliance should be turned off when it is being repaired FORWARD LG Electronics assumes no responsibility for any repairs made on our products by anyone other than Authorized Service Technicians WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to...

Page 3: ...trol Board PCB and the Spark Module IG Trans 3 5 Removing Power Control Board PCB 3 6 Removing the Cooktop Plate 3 7 Removing the Cooktop Plate and the Spark Module 3 8 Removing the Case assembly Cooktop Burner assembly 3 9 Removing the Cooktop Parts 3 10 3 13 Removing the Door Latch and the Door Switch 3 14 Removing the BROIL Burner assembly 3 15 Oven Bottom the Frame guide and the Burner assembl...

Page 4: ... Power PCB 6 4 DIAGNOSIS THROUGH SCHEMATIC 7 1 7 2 CHECK THE FAILURE CODE F code 8 1 FAILURE CODE SUMMARY 9 1 CHECKING FLOW CHART BY FAILURE 10 1 10 23 No display No power 10 2 10 4 No heating including F11 error 10 5 10 8 Door lock system failure including F10 error 10 9 10 12 Sensing fail including F1 F2 error 10 13 10 16 Oven hot including F6 error 10 17 10 19 Key pad failure including F3 error...

Page 5: ...ing devices Failure to do so can result in severe personal injury death or electrical shock DO 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 During and after use do not touch or let clothing or other flammable materials contact burners grates or interior surfaces of oven until ...

Page 6: ... 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 WARNING DO NOT store items of interest to children in cabinets above a range o...

Page 7: ... at the OFF position and all grates are cool before attempting to remove them IMPOR IMPORT TANT SAFETY INSTRUCTIONS ANT SAFETY INSTRUCTIONS SELF CLEAN OVENS 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 Do Not Use Oven Cleaners No commercial oven cleaner or oven liner protective coating of any kind should be used in ...

Page 8: ... AND TECH SHEET LOCATIONS TIONS Tech Sheet Location On Low Rear Cover For Model Product Code LRG3091ST 00 FG4124ES FSTELGA LRG3091SB 00 FG4124EB FBKELGA LRG3091SW 00 FG4124EW FWHELGA For Model Product Code LRG3091ST 01 FG4124ES FS1ELGA LRG3091SB 01 FG4124EB FB1ELGA LRG3091SW 01 FG4124EW FW1ELGA LRG3091ST 02 FG4124ES FS2ELGA LRG3091SB 02 FG4124EB FB2ELGA LRG3091SW 02 FG4124EW FW2ELGA ...

Page 9: ... Door lock out Broiler pan Type Oven Interior W x H x D Exterior Width Exterior Height Exterior Depth Net weight lbs kg Rating 30 Freestanding STS Black White Push button key pad Knob LED Green Yes Yes Yes 1 Thermostat Adjustment 2 Preheating Alarm Light On Off 3 Beeper Volume High Low Off 4 Temperature unit F C 5 Clock 12hr 24hr Enamel 5 5 5 9 1k 9 1k 5k 5k 9 1k 9 1k 12k 9 5k 17k 10k 5 4 14 5k 13...

Page 10: ... bake mode Bake can be used to cook foods which are normally baked Oven must be preheated 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 Cooking Guide Refer to the owners manual for recommendations of times ...

Page 11: ...e 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 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 c...

Page 12: ... pots pans or for use with the griddle The extra large burner dual can be also turned down to LO for a low simmer setting almost like the small burner 2 SETTING THE CLOCK 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 4 TO TURN ON OFF THE OVEN LIGHT The oven light automatically turns ON when the door is opened ...

Page 13: ...etween the F and C 3 Press START pad 10 BAKE TIMED BAKE DELAYED TIMED BAKE 11 BROIL 12 TIMED COOK WITH WARM 13 OVEN LOCKOUT 14 CHANGING HOUR MODE ON CLOCK 12HR 24HR 15 SELF CLEAN 2 4 USING YOUR RANGE START SELF CLEAN Once 3 hour Twice 2 hour 3 times 4 hour BAKE Desired Temp COOK TIME Desired time WARM START Press and hold the CLOCK pad for 3 seconds to activate or reactivate LOCKOUT Press and hold...

Page 14: ...TIONS Main PCB Relay PCB Power PCB Spark module Burner body Cooktop valve Door switch Oven valve Bake burner Ignition switch Door lock assembly Broil burner Door locking motor micro switch Burner pipe Igniter broil Oven light Oven sensor Igniter bake Gas pressure regulator For Model Product Code LRG3091ST 00 FG4124ES FSTELGA LRG3091SB 00 FG4124EB FBKELGA LRG3091SW 00 FG4124EW FWHELGA ...

Page 15: ...PCB Relay PCB Power PCB Burner body Cooktop valve Bake burner Ignition switch Door lock assembly Broil burner Door locking motor micro switch Burner pipe Igniter broil Oven light Oven sensor Igniter bake Door switch Spark module For Model Product Code LRG3091ST 01 FG4124ES FS1ELGA LRG3091SB 01 FG4124EB FB1ELGA LRG3091SW 01 FG4124EW FW1ELGA LRG3091ST 02 FG4124ES FS2ELGA LRG3091SB 02 FG4124EB FB2ELG...

Page 16: ...up from the supporters 11 Remove the 3 screws of controller sub assembly 12 Replace the key pad assembly 6 Remove the 4 screws of PCB assembly and separate PCB assembly after unpluging the connectors REMOVING THE BACK CONTROL REMOVING THE BACK CONTROL COVER AND KEY P COVER AND KEY PAD ASSEMBL AD ASSEMBLY Y WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and...

Page 17: ... of controller sub assembly 12 Replace the key pad assembly 6 Remove the 4 screws of PCB assembly and separate PCB assembly after unpluging the connectors REMOVING THE BACK CONTROL REMOVING THE BACK CONTROL COVER AND KEY P COVER AND KEY PAD ASSEMBL AD ASSEMBLY Y WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all groundi...

Page 18: ...or composition of control board 5 5 connectors of the electrode and a connector of the harness a Disconnect 6 connectors b Remove the 2 screws c Remove the 2 tabs by using long nose pliers Power Supply PCB Main PCB Relay PCB WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result...

Page 19: ...2 for composition of control board Power Supply PCB Main PCB Relay PCB WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock CAUTION Be careful when you work on the gas range handling the sheet metal part Sharp edge may be pre...

Page 20: ...ering the top onto the front clips line up the burner body and with the cooktop to replace screws REMOVING THE COOKT REMOVING THE COOKTOP PLA OP PLATE TE WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock For Model Product ...

Page 21: ...connect 6 connectors b Remove the 2 screws c Remove the 2 tabs by using long nose pliers 3 8 COMPONENT ACCESS REMOVING THE COOKT REMOVING THE COOKTOP PLA OP PLATE TE AND THE SP AND THE SPARK MODULE ARK MODULE WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe perso...

Page 22: ... THE CASE ASSEMBL REMOVING THE CASE ASSEMBLY Y COOKT COOKTOP BURNER ASSEMBL OP BURNER ASSEMBLY Y WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock 5 screws 5 screws 5 screws 5 screws 5 screws 5 screws 5 screws 5 screws 5 s...

Page 23: ...s 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 ...

Page 24: ... 2 release tabs and slide the switch off the valve stem c Remove the connector and remove the ignition switch 5 To remove the electrode spark plug a Remove the rear control panel See the step 2 3 on page 3 3 b Remove the connector from the spark module c Remove the wire ring d Remove the electrode from the burner housing ...

Page 25: ...ove the cooktop plate See REMOVING THE COOKTOP PLATE on page 3 7 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw 1 screw...

Page 26: ...ep 3 on page 3 9 b Pry on the 2 release tabs and slide the switch off the valve stem c Remove the 2 connectors and remove the ignition switch 5 To remove the electrode spark plug a Remove the connector from the spark module b Remove the wire ring c Remove the electrode from the burner housing ...

Page 27: ... RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock CAUTION 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 3 Remove the cooktop plate manifold and the case assembly see page 3...

Page 28: ...Broil burner assembly 4 To remove the igniter a Perform step 1 3 on this page b Remove the 2 screws and then remove the igniter b 3 b 2 b 1 b 5 b 4 WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock Make sure the igniter co...

Page 29: ...case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case Nozzle case 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws...

Page 30: ...rews 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 4 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws...

Page 31: ...ver Bulb Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips V...

Page 32: ... 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 M switch Cam Latch rod 3 screws 3 screws 3 screws 3 sc...

Page 33: ...ty c Remove the oven sensor WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock CAUTION Be careful when you work on the gas range handling the sheet metal part Sharp edge may be present and you can cut yourself 2 screws 2 sc...

Page 34: ...awer 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 CAUTION Turn power OFF before removing the storage drawer WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or elect...

Page 35: ...ot 4 Push the hinge locks up against the front frame of the oven cavity to the locked position 5 Close the oven door To remove the door 1 Fully open the door 2 Pull the hinge locks down toward Fig 1 the door frame to the unlocked position 3 Firmly grasp both sides of the door at the top 4 Close door to the door removal position which is approximately 5 degrees refer to the Fig 2 5 Lift door up and...

Page 36: ...crews 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner sc...

Page 37: ...ge hanger screws lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulatio...

Page 38: ...asket Door gasket Door gasket Door gasket Door gasket Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket clip Gasket cli...

Page 39: ... you can access the back of the unit 4 Remove the 15 screws from the rear panel and remove the panel see step 4 on page 3 3 or 3 4 5 Raise the cooktop plate see the page 3 7 for the procedure 6 Remove the two screws from the top rear of the side panel WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices ...

Page 40: ...ws 4 screws 4 screws 4 screws 4 screws 4 screws 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters 2 connecters Gas supplier fitting Gas supplier fitting Gas supplier fitting Gas supplier fitting Gas supplier fitting Gas supplier ...

Page 41: ...gs 3 Fittings 3 Fittings 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connectors 4 connector...

Page 42: ...ctors far enough 3 Resistance checks must be made with power cord unplugged from outlet and with wiring harness or connectors disconnected Before testing any of components perform the following checks WARNING Turn off the electrical supply and gas supply going to the range Replace all panels and parts before operating Reconnect all grounding devices after servicing Failure to do so can result in d...

Page 43: ... kΩ 10 If not replace Components Test procedures Results NO COM Door latch open Door latch Locked Continuity Infinite NOTE After checking for the continuity of switch make sure that they are connected correctly NOTE Oven sensor is so sensitive to temperature Do test after cooling down sufficiently NOTE Ω Value was tested at room temperature 77F 25 C 1 Refer to page 3 14 for the servicing procedure...

Page 44: ...resistance after cooling down Multiple meter scale R x 1 Normal 45 Ω 100 Ω Room Temperature Resistance If not replace 1 Refer to page 3 27 or 3 28 for servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1 Normal Approximately 1 3 Ω If not replace 1 Refer to page 3 12 for servicing procedure 2 Measure the resistance by rotating the cam of each switch slowly Mult...

Page 45: ...range handling the sheet metal part Sharp edge may be present and you can cut yourself CAUTION If the gas supply to the range is disconnected for any reason see the installation instructions for proper connection and safety precautions 2 CONVERT THE PRESSURE REGULATOR Remove the storage drawer and the pressure regulator is located at the rear of the range 3 CONVERTING YOUR REGULATOR 1 Unscrew the ...

Page 46: ... 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 1 Remove grates burner caps and burner heads 2 Remove the brass orifice spud in the chimney of each burner using a 5 16 or 8mm nut driver 3 Install the LP orifice spuds into their correct positions as described previously Orifi...

Page 47: ... securely screwed into the gas supply tubes 5 For the right front burner the choke and self threading screw will be needed as shown Fig Insert the choke 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 6 Put the old orifice spuds into conversion ki...

Page 48: ... can cut yourself CAUTION If the gas supply to the range is disconnected for any reason see the installation instructions for proper connection and safety precautions 2 CONVERT THE PRESSURE REGULATOR Pull the range away from the wall and the pressure regulator is located at the rear of the range 3 CONVERTING YOUR REGULATOR 1 Unscrew the hex nut cap by using an adjustable wrench 2 Separate plastic ...

Page 49: ...ow 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 1 Remove grates burner caps and burner heads 2 Remove the brass orifice spud in the chimney of each burner using a 13 32 or 10 mm nut driver 3 Install the LP orifice spuds into their correct positions as described previously Orifice Locations for LP Gas Denotes orifice code...

Page 50: ... For the right front burner the choke and self threading screw will be needed as shown Fig Insert the choke 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 6 Put the old orifice spuds into conversion kits and place back on the range for possible f...

Page 51: ... After 30 seconds of the burner operation check 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 remove Counterclockwise to remove Counterclockwise to remove Counterclockwise to remove Counterclockwise to remove Counterclockwise to remove Co...

Page 52: ...l gas NOTE The choke for the 17k top burner must be removed when converting the range back to natural gas 5 8 CONVERSION TO LP GAS WARNING Turn off the electrical supply and gas supply going to the range Replace all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock CAUTION Be careful when you work on th...

Page 53: ...sembly Main PCB Loc No 2006 Power PCB Loc No 2029 For Model Product Code LRG3091ST 00 FG4124ES FSTELGA LRG3091SB 00 FG4124EB FBKELGA LRG3091SW 00 FG4124EW FWHELGA LRG3091ST 01 FG4124ES FS1ELGA LRG3091SB 01 FG4124EB FB1ELGA LRG3091SW 01 FG4124EW FW1ELGA ...

Page 54: ...3 CN04 CN13 CN14 CN02 CN11 CN09 Power PCB Power PCB For Model Product Code LRG3091ST 00 FG4124ES FSTELGA LRG3091SB 00 FG4124EB FBKELGA LRG3091SW 00 FG4124EW FWHELGA LRG3091ST 01 FG4124ES FS1ELGA LRG3091SB 01 FG4124EB FB1ELGA LRG3091SW 01 FG4124EW FW1ELGA ...

Page 55: ...sembly Main PCB Loc No 2006 Power PCB Loc No 2029 For Model Product Code LRG3091ST 02 FG4124ES FS2ELGA LRG3091SB 02 FG4124EB FB2ELGA LRG3091SW 02 FG4124EW FW2ELGA LRG3091ST 03 FG4124ES FS3ELGA LRG3091SB 03 FG4124EB FB3ELGA LRG3091SW 03 FG4124EW FW3ELGA ...

Page 56: ...3 CN04 CN13 CN14 CN02 CN11 CN09 Power PCB Power PCB For Model Product Code LRG3091ST 02 FG4124ES FS2ELGA LRG3091SB 02 FG4124EB FB2ELGA LRG3091SW 02 FG4124EW FW2ELGA LRG3091ST 03 FG4124ES FS3ELGA LRG3091SB 03 FG4124EB FB3ELGA LRG3091SW 03 FG4124EW FW3ELGA ...

Page 57: ... Oven lamp not operating Check the Lamp coil s resistance Normal approximately 20 40Ω Symptom no heating F 11 Check related part Symptom Oven hot F 6 Check All heater relays are open short 1 3 4 2 5 6 For Model Product Code LRG3091ST 00 FG4124ES FSTELGA LRG3091SB 00 FG4124EB FBKELGA LRG3091SW 00 FG4124EW FWHELGA LRG3091ST 01 FG4124ES FS1ELGA LRG3091SB 01 FG4124EB FB1ELGA LRG3091SW 01 FG4124EW FW1E...

Page 58: ... kΩ at 65F 1 12 kΩ at 85F Symptom Door lock fail F 10 Check related part Symptom Oven lamp not operating Check the Lamp coil s resistance Normal approximately 20 40Ω Symptom no heating F 11 Check related part Symptom Oven hot F 6 Check All heater relays are open short 1 3 4 2 5 6 For Model Product Code LRG3091ST 02 FG4124ES FS2ELGA LRG3091SB 02 FG4124EB FB2ELGA LRG3091SW 02 FG4124EW FW2ELGA LRG309...

Page 59: ...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 If the oven does not have any failure the oven will display like FIG 2 NOTE After checking the failure code press the CLEAR key Type of F code FIG 1 TIMER DELAY TIMED BAKE BROIL WARM CLEAN LOCKED HR TIMER DELAY TIMED BAKE BROIL WARM CLEAN LOCKED HR TIMER DELAY TIMED BAKE...

Page 60: ...hort for over 60 seconds The oven temperature is over 650 F continuously during 2 minutes on cooking except self cleaning In case of Door Lock Failure in operating Lock motor If starting oven temperature does not exceed 150 F and oven temperature is less Than or equal to starting temperature over 5 minutes during preheating while door is closed 1 Wiring 2 Oven Sensor 1 Wiring 2 Oven Sensor Key mal...

Page 61: ...10 1 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Power Failure Dead 2 No Display 1 Check Electric Wiring 2 Check the Power PCB and Main PCB Voltage ...

Page 62: ...isplay Enter key input Disconnect the power No No Some beep sounds Oven display blanks Is it 120V AC Normal END 2 5 Pin 7 Pin No No Yes Yes Yes Yes CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 CN02 Check the harness of between L1 N Replace the defective harness 1 END ...

Page 63: ...tance PIN No of CN02 Resistance PIN5 PIN7 approximately 138 Ω Check the voltage of Power PCB CN13 pin 1 and pin 3 pin1 and pin 4 PIN No of CN13 Voltage PIN1 GND PIN3 PIN1 GND PIN4 approximately 9V approximately 4 5V 5 5V Normal END No Power On Yes Replace the power PCB 2 1 Pin 4 Pin ...

Page 64: ...10 4 CHECKING FLOW CHART BY FAILURE No display No power Yes Normal END No Replace the main PCB END Replace the power PCB ...

Page 65: ...10 5 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 No heating 2 F11 1 Check Electric Wiring 2 Check Heater s Resistance 3 Check the Sensor thermistor MAIN PCB POWER PCB ...

Page 66: ...10 6 CHECKING FLOW CHART BY FAILURE Oven does not heat Check the looseness of bake broil heater connection Broil globar ignitor Bake globar ignitor Gas Valve No Heating Disconnect the power ...

Page 67: ...easure the resistance after cooling down Normal approximately 45Ω 400Ω Check the resistance of Gas valve Normal approximately 1 1 5Ω Reconnect In case of defective harness replace or fix Normal END No Replace the failed ignitor Baker ignitor Broil ignitor Bake Gas Valve Pin No Broil Gas Valve 1pin WH N 1 4 3 2 3pin ...

Page 68: ...No Yes Replace the Failed Valve Check the oven sensor measure the resistance after cooling down Normal approximately 1 06 kΩ at 65F 1 12 kΩ at 85F Normal END No Yes Replace the oven sensor Normal END END No Yes Replace the main PCB Normal Replace the power PCB ...

Page 69: ...10 9 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Door Lock System Failure 2 F 10 1 Check the Electric wiring 2 Check the Motor s Resistance MAIN PCB POWER PCB ...

Page 70: ...switch and door locking motor Normal END No Yes Door lock failed Disconnect the power Reconnect Check the oven door lock switch micro switch measure the resistance Normally open type NO COM Door latch open Door latch Locked Continuity Infinite Door lock system error F 10 error ...

Page 71: ... error Normal Yes Yes Yes END No Replace the micro switch Normal Normal END No Replace the door locking motor END No Reconnect Check the door locking motor measure the resistance normal approximately 2 6 kΩ abnormal infinite or below 5 Ω Check the looseness of CN03 ...

Page 72: ...10 12 CHECKING FLOW CHART BY FAILURE Check the loose connection END No Yes Reconnect Normal END END No Yes Replace the Power PCB Normal Replace the main PCB Door lock system error F 10 error ...

Page 73: ...W CHART BY FAILURE Symptom Check Point 1 Sensing Fail 2 F 1 3 F 2 1 Check the electric wiring 2 Check the test Mode 3 Check the sensor thermistor resistance approximately 1 06 kΩ at 65F 1 12 kΩ at 85F MAIN PCB POWER PCB ...

Page 74: ...en sensor connector END No Yes Reconnect Disconnect the main oven sensor and check the main oven sensor value measure the resistance after cooling down Normal approximately 1 06 kΩ at 65F 1 12 kΩ at 85F Normal END No Yes Replace the main oven sensor Normal Main oven sensing failed Disconnect the power ...

Page 75: ...e 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 Reconnect and replace the bad harness Connect the power END TIMER DELAY TIM...

Page 76: ...2 error Check the sensor value at step 3 Normal the sensor value is from 65 F to 95 F at room temp TIMER DELAY TIMED BAKE BROIL WARM CLEAN LOCKED HR TIMER DELAY TIMED BAKE BROIL WARM CLEAN LOCKED HR STEP 2 STEP 3 END sensor value END No Yes Replace the Power PCB Normal ...

Page 77: ...10 17 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Oven hot 2 F 6 1 Check the Resistance of the Relay ...

Page 78: ...or F 6 error Check the bake relay damage measure the resistance Normal No END Replace the main oven sensor Welded Normal Continuity Infinite Disconnect the power and main oven sensor Check the main oven sensor value measure the resistance after cooling down Normal approximately 1 06 kΩ at 65F 1 12 kΩ at 85F ...

Page 79: ...Y FAILURE Oven too hot error F 6 error Normal No END END Replace the power PCB Replace the main PCB Yes Yes Check the broil relay damage measure the resistance Welded Normal Continuity Infinite Normal No END Replace the power PCB ...

Page 80: ...10 20 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Keypad Failure 2 F 3 Error 1 Check the Oven lock operation 2 Check the mechanical malfunction of key ...

Page 81: ... lock operation Nomal unlock No key input END END END No No Yes Yes Cancel the Door locking press the start key for three seconds Normal No Yes Replace the control panel Replace the main PCB Normal Normal Check the control panel and Find the mechanical malfunction of key ...

Page 82: ...f oven lamp terminal and harness Check the looseness of connector Power PCB CN02 END No No Yes Normal Yes Normal Oven lamp does not operate Disconnect the power Oven lamp does not operate Reconnect In case of the defective harness replace or fix Reconnect END ...

Page 83: ...Oven lamp does not operate Yes Normal No Check the oven lamp measure the resistance Normal approximately 20 40Ω Abnormal infinite Replace the oven lamp Replace the power PCB END Yes Normal No Replace the main PCB END END Abnormal Infinite ...

Page 84: ...lve may have accidentally been moved during cleaning or moving 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 Be sure floor is level and is strong and stable enough to adequately support range Contact a carpenter to correct the situation Be sure cabinets are square and have sufficient room for range clearance Make...

Page 85: ...per oven controls setting The light bulb is loose or defective The plug on range is not completely inserted in the electrical outlet See the USING THE OVEN section in user s guide See the USING THE OVEN section in user s guide See the USING THE OVEN section in user s guide See the HOW TO ADJUST THE OVEN THERMOSTAT section in user s guide See the USING THE CLOCK AND TIMER section in user s guide Se...

Page 86: ...mperature inside the oven has not dropped below the locking temperature Allow the range to cool to room temperature and reset the controls See the USING THE SELF CLEANING OVEN section in user s guide This is normal Touch the CLEAR OFF pad Open the 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 Allow the oven to ...

Page 87: ...nt Drawer is over loaded or load is unbalanced Apply a small amount of vegetable oil to a paper towel and wipe the edges of the oven racks with the paper towel Do not use lubricant sprays 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 To speed the process set a self clean cycle for a minimum of 3 hours See...

Page 88: ...EXPLODED VIEW EV INTRODUCTION I DOOR PARTS DRAWER PARTS COOKTOP PARTS CONTROLLER PARTS CAVITY PARTS Customer Model MODEL Product Code SVC Model ...

Page 89: ...DOOR PARTS I 102U 1704 1704 W243 1000 1009 102U W222 1020 1703 1733 1733 1703 1018 1015 1024 W101 102S 102S 1023 1021 1455 W101 W225 EV Customer Model MODEL Product Code SVC Model ...

Page 90: ...2381 2037 2036 2033 2136 2137 2137 2006 3006 2029 2048 2075 2501 2028 2128 2382 CONTROLLER PARTS II EV MODEL Customer Model Product Code SVC Model ...

Page 91: ...961 3963 3992 3964 3950 3951 3957 3956 3977 3973 3978 3972 W294 3946 3945 3993 3994 3995 3953 3985 3958 3954 3985 3985 3985 3936 3985 3957 3951 3006 3403 3930 When order knob order a gasket 5515 also And replace both if the oven already has new gasket the order is not nessesary EV MODEL Customer Model Product Code SVC Model ...

Page 92: ...WER PARTS II 8504 8502 8508 8502 5505 5505 8520 8708 8519 8511 W229 9381 8507 8501 8514 8530 8530 8388 8526 8526 8527 8527 8602 8025 8540 8541 8524 8525 8525 EV MODEL Customer Model Product Code SVC Model ...

Page 93: ...22 5911 5903 5943 W231 W231 5912 5921 5904 W231 W231 5952 5958 5464 5021 W231 5511 W231 5463 5536 5536 5149 5010 5503 5505 5014 5019 5944 5942 5941 5900 W231 5931 5409 5512 5512 5700 5509 3106 5502 3013 3006 8550 2041 5465 2058 9384 5517 W401 5462 5955 W115 W318 W290 W292 5905 EV MODEL Customer Model Product Code SVC Model ...

Page 94: ......

Search results

Summary of Contents for LRG3091SB

Reviews:

Related manuals for LRG3091SB

Brands by name

Popular brands

LG LRG3091SB, Service Manual

Search results

Summary of Contents for LRG3091SB

Reviews:

Related manuals for LRG3091SB

Brands by name

Popular brands