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10-13

Only training and service purposes

CHECKING FLOW CHART BY FAILURE

Sensing Fail, F1, F2?

Is the Connector

disconnected or loose?
(1) Sensor connection
(2) CN10 of Main PCB

Yes

Reconnect

or adjust the

connection

Unplug the unit

Main oven sensing error

F-1, F-2 error

CN06

Sensor connection

Yes

Go to No 4

Plug in the unit

Is the value of thermistor

normal? (Refer below)

Check with the test mode

To enter the test mode, follow these steps:

1. Press the any button, and Mode knob is

placed in the Off

2. Press the "4" and "6" key at the same time for

1 second.

3. Press the "4" and "6" key at the same time for

1 second again.

4. Press the “3” key.

Current temp

Normal : Thermistor value at room temp is from

70˚F to 90

Содержание LSEL6335D

Страница 1: ...v00 02012021 30 Electric Range SERVICE MANUAL CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL MODEL LSEL6335F LSEL6335D Copyright 2021 LG Electronics Inc All rights reserved Only training and service purposes ...

Страница 2: ... repairs contact an LG Service Center or your dealer If the power cord is defective it must be replaced by a qualified service agent with a UL listed range cord Electrical leads and cables should not be allowed to touch the oven Rating plate is located on the left side of warming drawer The power supply of the appliance should be turned off when it is being repaired FORWARD LG Electronics assumes ...

Страница 3: ... relay PCB power PCB 3 3 Removing the ceramic glass cooktop and the surface element 3 4 Removing the controller 3 5 Removing knob and infinite switch 3 6 Removing a side panel 3 7 Removing the cooling motor thermal disk and Rdoor switch 3 8 3 9 Removing the broil element 3 10 Removing the convection element fan blade and fan motor 3 11 Removing the oven light socket assembly 3 12 Removing the latc...

Страница 4: ...4 CR Cook top Element 5 4 LR RR Cook top Element 5 4 LF Cook top Element 5 5 RF Cook top Element 5 5 COMPOSITION OF CONTROL 6 1 6 3 Main PCB 6 2 Power PCB 6 2 LED Module 6 3 Touch film 6 3 Wifi PCB 6 3 SVC TEST MODE 7 1 7 3 TROUBLE SHOOTING 8 1 FAILURE CODE SUMMARY 9 1 CHECKING FLOW CHART BY FAILURE 10 1 10 26 Power Failed Dead No display 10 1 10 4 No heating F9 10 5 10 8 Door Lock System Failure ...

Страница 5: ...ONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock 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 During and after use do not touch or let clothing or other flammable materials contact heating elements or i...

Страница 6: ...nti tip bracket installation WARNING 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 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 Oth...

Страница 7: ...s malfunctioning in the self clean mode Turn off or disconnect appliance from power supply and have serviced by a qualified technician VENTILATING HOODS Clean Ventilating Hoods Frequently Grease should not be allowed to accumulate on hood or filter When flaming foods under the hood turn the fan on OVEN Use Care When Opening Door Let hot air or steam escape before you remove or replace food in the ...

Страница 8: ... All rights reserved Only training and service purposes GENERAL The Model Serial Number label and Tech Sheet locations are shown below Tech Sheet Location MODEL SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS Model Serial Number Location ...

Страница 9: ...rites Easy clean Control lock Type Element Warming rack Oven Interior W x H x D Exterior Width Exterior Height Exterior Depth Net weight Lbs Kg Rating 29 9 Slide In STS BK STS Glass Touch Knob LED Yes Yes Yes Setting 7 categories 1 Change hour mode on Clock 2 Convection Auto Conversion On Off 3 Oven Temp Adjust 4 Preheat alarm light On Off 5 Beeper volume High Low Mute 6 Select Fahrenheit or Celsi...

Страница 10: ...urned 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 Difference between bake and convection mode is fan speed and amount of cycling time When cook with ba...

Страница 11: ...KNOB Use to control Left Front Element C LEFT REAR SINGEL CONTROL KNOB Use to control Left Rear Element D CENTER REAR WARM CONTROL KNOB Use to control Center Rear Element E RIGHT REAR SINGLE CONTROL KNOB Use to control Center Rear Element F RIGHT FRONT Triple CONTROL Use to control Right Front Element G OVEN CONTROL KNOB Turn the knob to select oven operating mode H OVEN CONTROL Use to control Ove...

Страница 12: ...it as a Single element 2 1 Turn the knob clockwise to use it as a Dual unit To turn on the Dual element There is one dual element located in the left front position Use the dual element as a dual or single element 1 Push in the appropriate knob 2 1 Turn the knob counterclockwise to use it as a Single element 2 1 Turn the knob clockwise to use it as a Dual unit Turning on a Triple Element There is ...

Страница 13: ...he Warming Zone could result in a food borne illness 1 Turn the control knob to the On position NOTE For best results food on the warmer should be kept in its container or covered with a lid or aluminum foil to maintain food quality The warmer will not glow red like the other cooking elements The Warming Zone can be operated as a single element on some models CAUTION FOOD POISON HAZARD Bacteria ma...

Страница 14: ...d timed cook The oven starts at the set time e Temp Press the button to set the oven temperature during oven use f Timer On Off Wi Fi Press the button to set or cancel timer on oven Press and hold button for three seconds to connect the appliance to a Wi Fi network g Keep Warm Press the button to keep food warm after cooking This feature should be used after cooking in the oven h Setting Press but...

Страница 15: ...wice this allows you to select minutes for example if you press 5 and 6 it means 56 minutes 5 OVEN TEMPERATURE ADJUSTMENT The oven temperature can be adjusted from 35 F 19 C to 35 F 19 C NOTE The oven temperature adjustments made with this feature will just change Bake temperature 1 Press Setting repeatedly until AdJU appears in the display 2 Use the number keys to enter the number of degrees you ...

Страница 16: ...F CLEAN 15 AUTO CONVERSION START SELF CLEAN 1 3 hour 2 4 hour 3 5 hour BAKE Desired Temp COOK TIME Desired time WARM START Press and hold the Control Lock key for 3 seconds to activate or reactivate Control Lock Press and hold the Setting button for 3 seconds Press 1 to select 12 or 24 hour START Press Setting repeatedly until Auto appears in the display Press 1 Auto conversion On off START ...

Страница 17: ...structs you on how to service each component inside the range The components and their locations are shown below COMPONENT LOCATIONS Door Locking Motor Micro Switch Oven lamp Infinite switch Mode Knob Switch Oven Sensor broil heater Convection Heater Convection Motor Surface Elements Hinge Door Switch Door Latch Assembly ...

Страница 18: ...the back cover remove 14 screw from the cover REMOVING THE BACK COVER 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 electric range handling the sheet metal part Sharp edge may be...

Страница 19: ... remove the PCB Disconnect the 8 ea housing and remove the 2ea screw 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 electric range handling the sheet metal part Sharp edge may be ...

Страница 20: ...er lifting the back of the top plate pull it out forward Remove 2 connectors which connect controller harness with cooktop harness NOTE If the above is difficult Disengage front clips using a steel ruler 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 i...

Страница 21: ...t the hook hanging from the side panel 4 To remove the main PCB supporter remove 4 screws 5 After disconnecting the 7 connectors remove the PCB from the PCB supporter 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 CAUTI...

Страница 22: ...move the 2 screws of knob ring d After replacing the infinite switch finally check the electric and wiring Picture 2 2 2 4 4 4 Pilot 4a 4a 4b S1 S1 P1 P1 P1 P2 P2 P2 S2 S2 LR CR RR LF RF Position LR CR RR LF YL P1 BK BK BK YL YL BK PK P2 RD RD RD RD BK RD RD RD RD 2 RD OR BN YL YL 4 VI RD WH WH VI WH GY RD GY 4a BL BL 4b Pilot YL WH RD OR S1 RD RD RD S2 PK BL WARNING DISCONNECT power supply cord f...

Страница 23: ...ontroller from the range see page 3 5 7 Remove the screw from the left or right side panel 8 Pull the back of the side panel out from the range approximately 10 9 Push forward and remove the side panel 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 inj...

Страница 24: ...ng motor c Remove the wires from the cooling motor d Remove the 3 screws on the main duct from the cooling motor e To remove the main duct remove the 3 screws on the main duct f To remove the main duct remove the 2 screws on the back panel REMOVING THE COOLING MOTOR THERMAL DISK AND DOOR SWITCH WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts befor...

Страница 25: ...ove the 1 screw and remove 2 receptacles The thermostat is located on the cavity cover It opens at 356 F 180 C and closes when the oven temperature cools below 14 F 10 C 8 To remove the door switch a Disconnect the wires from the terminal b Remove the door switch from the range To do this squeeze tabs and use a ratchet extension or a small socket and tap it out of the hole with a hammer Unhook Act...

Страница 26: ... the outer broil element a Unplug 2 receptacle at each point b Remove the 4 screws from the front and rear brackets 4 Screws 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 electri...

Страница 27: ... 6 Remove the two convection element screws and pull the element forward 7 To remove Fan blade remove Nut by screwing clockwise Fan blade can be replaced from inside oven 8 To remove Fan motor assembly disconnect wire connection and remove the three bracket screws 9 Pull the fan motor assembly forward REMOVING THE CONVECTION ELEMENT FAN BLADEAND FAN MOTOR Nut Bushing Fan motor Fan cover screws 4ea...

Страница 28: ... 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 electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 5 Use a screwdriver and bend the clips on the oven light soc...

Страница 29: ... and Lock out mode PCB Power control board chip operates the 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 featu...

Страница 30: ...move the panel See Step on page 3 2 5 To remove an oven temperature sensor Disconnect the connector from the main harness and remove the mounting screw in oven cavity Oven Sensor Connector Screws Main 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 p...

Страница 31: ...se the oven door Removing the Door Step 1 Fully open the door Step 2 Unlock the hinge locks rotating them as far toward the open door frame as they will go Step 3 Firmly grasp both sides of the door at the top Step 4 Close the door to the removal position approximately five degrees which is halfway between the broil stop position and fully closed If the position is correct the hinge arms will move...

Страница 32: ...ximately 2 inch Step 4 Secure 1 screw Step 5 Pull the drawer open again to seat bearing glides into position Removing the Drawer Most cleaning can be done with the drawer in place however the drawer may be removed if further cleaning is needed Use warm water to thoroughly clean Step 1 Fully open the drawer Step 2 Remove 1 screw Step 3 Locate the glide lever on each side of the drawer Push down on ...

Страница 33: ...ift the liner assembly off the front glass and set it aside 6 To remove the Air guide remove 2 screws 7 To remove the door handle trim Remove the 2 door handle screws and lift the door handle off door trim and slide up the door trim 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 ca...

Страница 34: ...er assembly on a padded work surface with the hinge hangers over the edge b Remove the 4 top door screws c Lift the hinge hanger out of the door liner slot 4 top liner Screws 9 Lift the insulation cover inner oven door glass and bracket assembly out of the door liner Door frame Insulation Insulation Insulation Hinge Insulation cover Inner oven door Glass Bracket ...

Страница 35: ...that all of the clips are seated in their liner holes and that the ends of the gasket are pushed fully into their holes Use the pointed end of a pencil to push the gasket ends into the holes 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 o...

Страница 36: ...oving the Back Cover Page 3 2 5 Remove the cooktop plate see Removing the Cooktop Plate Page 3 4 6 Remove the controller panel see Removing the Controller Panel Page 3 5 7 Remove the side panel see Removing the Side Panel Page 3 20 8 Remove the 1 screw on the drawer panel front WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECON...

Страница 37: ...ing 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 Before testing any of components perform the following checks WARNING Disconnect power supply cord from the outlet before servicing Replace all panels and parts bef...

Страница 38: ...res Results NO COM NO COM Normal Approximately 2 6 kΩ 10 If not replace Abnormal Infinite open below 5Ω shorted Door latch open Door latch Locked Infinite Continuity NOTE After checking for the continuity of switch make sure that they are connected correctly NO COM NO COM 1 Refer to page 3 15 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1000 Norm...

Страница 39: ...er cooling down Multiple meter scale R x 1 Normal Approximately 23 Ω 10 If not replace NOTE Ω Value was tested at room temperature 77F 25 C Be careful the element is sensitive to temperature 1 Refer to page 3 12 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1 Normal Approximately 13 5 Ω 10 If not replace NOTE Ω Value was tested at room temperature...

Страница 40: ...sconnect all wires from infinite switch 4 When turn on turn off the knob position measure the resistance between P1 to 2 5 When turn on turn off the knob position measure the resistance between L2 to H2 Components Test procedures Results 2 1 2 2 1 2 2 1 2 Infinite Switch LR RR CR Off On P1 to 2 P2 to 4 P1 to 2 P2 to 4 Infinite open circuit Infinite open circuit Continuity short circuit Continuity ...

Страница 41: ...the knob position measure the resistance between P2 to 4 and P2 to 4a Components Test procedures Results 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 2 2 1 A B 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a P1 2 P1 2 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 2 2 1 A B 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a 4 P1 2 P2 S2 S1 4a...

Страница 42: ... same procedure Components Test procedures Results Infinite Switch LF Off On Single On Dual P1 2 P2 4 P2 4a P1 2 P2 4 P2 4a P1 2 P2 4 P2 4a Infinite open circuit Infinite open circuit Infinite open circuit Continuity short circuit Continuity short circuit Infinite open circuit Continuity short circuit Continuity short circuit Continuity short circuit Dual type Knob Position Results ...

Страница 43: ...o the R x 1000 3 Disconnect all wires from infinite switch 4 Push in and turn left knob to check the single type 5 When turn on turn off the knob position measure the resistance between P1 to 2 P1 P1 P2 P2 S2 S2 2 2 4 4 4a 4a 4b 4b S1 S1 6 When turn on turn off the knob position measure the resistance between P2 to 4 P1 P1 P2 P2 S2 S2 2 2 4 4 4a 4a 4b 4b S1 S1 P1 P1 P2 P2 S2 S2 2 2 4 4 4a 4a 4b 4b...

Страница 44: ...urn off the knob position measure the resistance between P2 to 4b P1 P1 P2 P2 S2 S2 2 2 4 4 4a 4a 4b 4b S1 S1 9 After check the single type check the dual type at the same procedure Components Test procedures Results Normal Approximately 570 Ω If not replace Below 150 F open circuit infinite Above 150 F continuity 0 Ω Infinite Switch Knob Position Results Triple type LF OFF P2 4b Infinite open cir...

Страница 45: ...leads to the element terminal 1A and 2A The meter should indicate 46 Ω 10 5 Touch the ohmmeter test leads to limiter terminals 1B and 2B With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter should indicate continuity 0Ω Components Test procedures Results Normal Approximately 46 Ω If not replace Below 150 F open circuit infin...

Страница 46: ...uch the ohmmeter test leads to the element terminal E1 and E2 The meter should indicate 570Ω 10 5 Touch the ohmmeter test leads to limiter terminals 1A and 2A With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter should indicate continuity 0Ω Components Test procedures Results Normal Approximately 570 Ω If not replace Below 1...

Страница 47: ...d E2 1A the meter should indicate E1 1A 38 Ω 10 E2 1A 30 Ω 10 5 Touch the ohmmeter test leads to limiter terminals 1B and 2B With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter should indicate continuity 0 Ω Dual surface units Left Front LF Element Components Test procedures Results Normal Approximately 38 Ω Normal Approxim...

Страница 48: ...hmmeter test leads to limiter terminals 1A and 2A The meter should indicate continuity 0Ω Triple surface unit Right Front RF Element Components Test procedures Results Normal Approximately 52 Ω Normal Approximately 52 Ω Normal Approximately 64 Ω Normal Continuity below 0 5 Ω If not replace Below 150 F open circuit infinite Above 150 F continuity 0 Ω 6 Touch the ohmmeter test leads to limiter termi...

Страница 49: ...SYMBOL COLOR WHITE BLACK RED YELLOW PINK BLUE BROWN GREEN GRAY ORANGE VIOLET WH BK RD YL PK BL BR GN GY OR VI WARNING POWER MUST BE DISCONNECTED BEFORE SERVICING THE APPLIANCE FAILURE TO DO SO CAN RESULT IN DEATH OR ELECTRICAL SHOCK NOTE Schematic diagram shows oven door opened and unlocked All elements are set to OFF ...

Страница 50: ...6335D Complete the following steps before checking electric oven circuit 1 Check the line voltage household fuse or circuit breaker 2 Check for loose wiring or mis wiring within electric range NOTE The following individual circuits are for use in diagnosis and are shown in the ON position BAKE CONV BAKE CONV ROAST SELF CLEANING ...

Страница 54: ...l rights reserved Only training and service purposes COMPOSITION OF CONTROL Front Back Controller assembly Main PCB P N EBR32028303 Power PCB P N EBR31737803 LED Module P N EAV64012007 Touch film P N MFM64499201 Wifi PCB P N EBR85871801 ...

Страница 56: ...6 3 Copyright LG Electronics Inc All rights reserved Only training and service purposes COMPOSITION OF CONTROL LED Module P N EAV64012007 Wifi PCB Touch film P N EBR85871801 P N MFM64236702 ...

Страница 57: ...VC TEST MODE Sequence of SVC Test Mode To enter the test mode follow these steps 1 Press the any button and Mode knob is placed in the Off 2 Press the 4 and 6 key at the same time for 1 second 3 Press the 4 and 6 key at the same time for 1 second again 4 Select the t0 by press the 0 button ...

Страница 58: ... All rights reserved Only training and service purposes SVC TEST MODE 5 Whenever you input the START button the relay operation sequence should be as seen below Relay Operation Sequence If want to quit this sequence turn the mode knob ...

Страница 59: ...ck Summary Symptom no heating F9 Check All heater relays and DLB relay are open Symptom Oven hot F6 Check All heater relays are open shorted Symptom Oven lamp not operating Check the Lamp coil s resistance Symptom Door lock fail F10 Check relative part Symptom Sensor error or no heating F1 F2 Check Sensor resistance ...

Страница 60: ...teps 1 Press the any button and Mode knob is placed in the Off 2 Press the 4 and 6 key at the same time for 1 second If the oven has some failure the oven will show the failure code like FIG 1 It shows the type of F code and times of occurred failure alternately for each 4 seconds FIG 1 Type of F Code Times of the occurred Failure If the oven does not have any failure the oven will display like FI...

Страница 61: ...xcept self cleaning 1 Oven Sensor 2 Relay F 7 Convection Fan Motor Error Convection fan operating can t be detected over 1 minute in all cases of convection fan operating 1 Electric Wiring F 8 Shorted Probe Sensor Oven probe is shorted 1 Electric Wiring 2 Probe Sensor F 9 No heating If starting oven temperature does not exceed 150 F and oven temperature is less Than or equal to starting temperatur...

Страница 62: ...d Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Power Failure Dead 2 No Display 3 No Backlighting 1 Check Electrical Wiring 2 Check the PCB Input Output Voltage with CN10 Main CN01 Power CN02 Power CN10 CN02 CN12 ...

Страница 63: ...d Rotating the mode knob Can hear the beep sound Change the LED Module and Backlighting Module Reconnect If defective harness replace or fix Reconnect If defective harness replace or fix Check the connection of power cord Check the connection of Power PCB CN01 Normal Normal Normal Yes No No No Yes Yes 1 Power Failed Dead Plug the unit CN01 ...

Страница 64: ...Y FAILURE Check the AC input of Power PCB Reconnect Replace the Thermostat Check the connection of L1 and N at Terminal block Replace the Power PCB Check the Thermostat Normal Short Abnormal Open Check the connection states CN10 of Main PCB and CN02 Power PCB Normal Normal Normal No No No Yes Yes Yes CN10 CN02 ...

Страница 65: ...NG FLOW CHART BY FAILURE Check the beep sound Rotating the mode knob Can hear the beep sound Change the LED Module Change the Main PCB Reconnect If defective harness replace or fix Check the connection of Main PCB CN12 and LED Module Normal Normal No No Yes Yes 2 No Display Plug the unit CN12 LED ...

Страница 66: ...reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE E D F L1 L2 RY12 RY11 Broil Conv Heater RY13 C B A Symptom Check Point 1 No heating 2 F9 1 Check Electric Wiring 2 Check Heater s Resistance 3 Check the Sensor A C B F D E ...

Страница 67: ... Electronics Inc All rights reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 No heating 2 F9 1 Check Electrical Wiring 2 Check Heater s Resistance 3 Check the Sensor CN06 ...

Страница 68: ... Connector disconnected or loose 1 Electric wiring of Relay PCB All taps 2 Electric wiring of electric element Yes Reconnect If defective harness Replace or fix 1 Unplug the unit Check the resistance of each heater Normal Measure the resistance after cooling down The resistance is shown below No Replace the failed heater 2 Broil yes No Conv Heater ...

Страница 69: ...6 Replace the Relay PCB If the same phenomenon occurs even though after replace Relay PCB you should replace the Main PCB Heater Resistance Ω Approximately Broil 13 5 Conv Heater 23 Is the value of thermistor normal Refer below Check with the test mode To enter the test mode follow these steps 1 Press the any button and Mode knob is placed in the Off 2 Press the 4 and 6 key at the same time for 1 ...

Страница 70: ...Electronics Inc All rights reserved Only training and service purposes 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 CN06 ...

Страница 71: ...Check the terminal looseness of micro 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 NO COM Door lock system error F 10 error ...

Страница 72: ...oor lock system error F 10 error Normal Yes Yes Yes END No Replace the micro switch Normal Normal END No Replace the door locking motor END No Reconnect Replace the main PCB Check the door locking motor measure the resistance normal approximately 3 9 kΩ abnormal infinite or below 5 Ω Check the looseness of CN02 NO COM CN06 ...

Страница 73: ...All rights reserved Only training and service purposes CHECKING FLOW 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 CN06 CN6 Pin5 ...

Страница 74: ...nit Main oven sensing error F 1 F 2 error CN06 Sensor connection Yes Go to No 4 2 No Plug in the unit Is the value of thermistor normal Refer below Check with the test mode To enter the test mode follow these steps 1 Press the any button and Mode knob is placed in the Off 2 Press the 4 and 6 key at the same time for 1 second 3 Press the 4 and 6 key at the same time for 1 second again 4 Press the 3...

Страница 75: ...e resistance of thermistor normal Check Pin 5 and 6 of CN6 of Main PCB Normal approximately 1 09 K ohm at 25 No Replace the defective Thermistor 3 4 Yes Main oven sensing error F 1 F 2 error Replace the Relay PCB If the same phenomenon occurs even though after replace Relay PCB you should replace the Main PCB CN06 Pin 5 and 6 ...

Страница 76: ...ts reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Oven hot 2 F6 1 Check the Resistance of the Relay 2 Check the Sensor s Resistance A C B F D E E D F L1 L2 RY12 RY11 Broil Conv Heater RY13 C B A ...

Страница 77: ...t LG Electronics Inc All rights reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE CN06 Symptom Check Point 1 Oven hot 2 F6 1 Check the Resistance of the Relay 2 Check the Sensor s Resistance ...

Страница 78: ...eck Pin 5 and 6 of CN6 of Main PCB Normal approximately 1 09 K ohm at 25 No Replace the defective Thermistor 1 Unplug the unit Yes Yes Yes Yes Is the heater relay normal Measure the resistance of Heater relay and Live Normal infinite Abnormal shorted No Replace the Relay PCB 2 Broil Heater Relay Conv Heater Relay Tap 09 and Tap07 Ry 5 Tap 09 and Tap08 Ry 6 CN06 Pin 5 and 6 ...

Страница 79: ...nd Tap02 Ry 1 DLB Relay Is the value of thermistor normal Refer below Check with the test mode Yes Replace the Main PCB 4 Plug in the unit To enter the test mode follow these steps 1 Press the any button and Mode knob is placed in the Off 2 Press the 4 and 6 key at the same time for 1 second 3 Press the 4 and 6 key at the same time for 1 second again 4 Press the 3 key Current temp Normal Thermisto...

Страница 80: ...ight LG Electronics Inc All rights reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Key not working 2 F3 Error 1 Check the Control Lock 2 Check the Electrical Wiring ...

Страница 81: ...e purposes CHECKING FLOW CHART BY FAILURE Key does not input Check the oven lock operation Nomal unlock END END END No No Yes Yes Cancel the Door locking press the start key for three seconds Normal No Yes Replace the main PCB Normal Normal Check the connection of the 2 connectors ...

Страница 82: ...t LG Electronics Inc All rights reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Instaview not operation 1 Check the Electrical Wiring 2 Check the DC Input voltage CN6 ...

Страница 83: ...view not operation No No Yes Reconnect or adjust the connection Change main PCB Change Instaview PCB Normal Normal Check the connection states between Knob lighting PCB and Main PCB CN19 Is it ok Check the DC Input of Knock on PCB and DC output of Main PCB PCB Pin Vo Voltage CN06 Main 3 BL 26 YL 5V Insta view PCB 1 YL 2 BL 5V ...

Страница 84: ... Electronics Inc All rights reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Convection Fan Error 2 F 7 1 Check the electric wiring 2 Check the Convection Motor resistance ...

Страница 85: ...lace or fix Replace the Convection Motor Is the connection of the convection motor loose or disconnection Check the Convection Motor s resistance Is it normal Refer to 4 1Page Component Test Replace the Main PCB If the same phenomenon occurs even though after Replaced Main PCB you should replace the Power PCB Is the connection of CN4 of Power PCB and CN1 of Main PCB normal Yes No No No Yes Yes Con...

Страница 86: ...ight LG Electronics Inc All rights reserved Only training and service purposes CHECKING FLOW CHART BY FAILURE Symptom Check Point 1 Sensing Fail 2 F 8 1 Check the probe touches the side panel 2 Check the Main PCB ...

Страница 87: ...ce purposes CHECKING FLOW CHART BY FAILURE Make the probe and side panel separate Disconnect the power Replace the Main PCB Does the probe touch the side panel Check the DC input of Main PCB Main PCB 1pin 2pin of CN07 5V DC Yes No No Probe Shorted F 8 error Probe Shorted F8 error ...

Страница 88: ... when key is accessed If Key is the normal operation will be the number that corresponds to the Key displayed on the LED 2 If the key access order was changed the buzzer make double beep sound 3 The buzzer does NOT beep when a key was accessed it would be defected How to stop Key Test mode Press 1st Control Lock 2nd Cook Time 3rd Start Time 20th Start Key operation Test sequence ...

Страница 89: ...Copyright LG Electronics Inc All rights reserved Only training and service purposes EXPLODED VIEW EV INTRODUCTION 9504 9501 9506 8511 W229 9381 W229 9381 MODEL Customer Model Product Code SVC Model ...

Страница 90: ...t LG Electronics Inc All rights reserved Only training and service purposes EV DOOR PARTS 1382 1035 1020 102S 102U 1000 W222 W225 W243 173U 1008 1466 1008 1015 W321 1035 1009 1735 W108 102L W101 1704 W225 102S ...

Страница 91: ...ctronics Inc All rights reserved Only training and service purposes EV CONTROLLER PARTS W208 2052 2041 2042 2084 2050 2085 2083 2085 2082 2026 2002 2026 2082 2385 2053 3075 2006 2374 2221 244S 244S 244D 244T 244S 244E ...

Страница 93: ...Copyright LG Electronics Inc All rights reserved Only training and service purposes DRAWER PARTS 8513 8517 8512 5505 5505 8708 8504 8512 6008 6008 8508 8508 8524 8507 8501 8514 8513 W228 8602 8520 EV ...

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