LG LSE4617ST Service Manual Download Page 88

Page: 88 / 116

9-13

CHECKING FLOW CHART BY FAILURE

Is the Connector
disconnected or loose?
1. Sensor connection
2. CN31 of Main PCB

Yes

Unplug the unit

Sensing Fail, F1, F2?

Yes

Reconnect

or adjust the

connection

Sensor
connection

CN31

Is the resistance of
thermistor normal?

Check:

Pins 4 and 5 of CN31 wiring in main PCB

Normal- approximately 1.09kΩ at 25˚C

Replace the

defective

Thermistor

CN13

Summary of Contents for LSE4617ST

Page 1: ...30 ELECTRIC RANGE SERVICE MANUAL MODEL LSE4617ST CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL P NO MFL37118359 October 2016 Printed in Korea 삼 흥 정 판 Internal Use Only ...

Page 2: ...our 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 LG Electronics assumes no responsibility for any repairs made on our prod...

Page 3: ...CB assembly 3 5 Removing knob and infinite switch 3 6 Removing the cooktop from the oven 3 7 Removing the ceramic galss cooktop from the cooktop 3 8 Removing the working coil plate and working coil 3 9 3 11 Removing the burner individually 3 12 Removing the Noise Filter PCB And Inveter PCB 3 13 3 14 Removing the box fan and blow fan 3 15 Removing the LED PCB 3 16 3 17 Removing the cooktop main PCB...

Page 4: ...6 3 Encoder PCB 6 3 Touch PCB 6 4 Wifi PCB and Buzzer PCB 6 4 SVC TEST MODE 7 1 7 3 TROUBLE SHOOTING 8 1 8 3 Check the Failure Code 8 1 Failure Code Summary 8 2 8 3 CHECKING FLOW CHART BY FAILURE 9 1 9 30 Power Failed Dead No display 9 1 9 3 No heating F9 9 4 9 7 Door Lock System Failure F10 9 8 9 11 Sensing Fail F1 F2 9 12 9 14 Oven hot F6 9 15 9 18 Key not working F3 Error 9 19 9 20 Communicatio...

Page 5: ... 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 interior surfaces of oven until they have h...

Page 6: ...T 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 Other surfaces of the appliance may become ho...

Page 7: ...rn 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 oven Do Not Heat Unopened Food Containers ...

Page 8: ...1 4 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 ...

Page 9: ...beepr Cooktop Material Ceramic glass of element 5 Power LR 6 1800 W RR 6 100 W CR 6 1800 W LF 8 3200 W RF 11 4000 W Oven Capacity cu ft 6 3 Broil element Inner Outer 1 600 W 2 400 W Bake element No Convection System Yes Convection element 2500 W of Racks 3 2 Heavy 1 Gliding Interior oven light 120 V 40 W Proof Yes Cook warm Yes Favorites Yes Easy clean No Door lockout Yes Drawer Type Warming drawe...

Page 10: ...ment 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 bake mode fan speed and amount of cycle tine...

Page 11: ...her the surface element is turned on or off B SURFACE CONTROL KNOB Use to control the surface control knob C ELECTRIC OVEN CONTROL Use to control Electric Oven D OVEN MODE KNOB Use to control Oven mode E RIGHT REAR WARM CONTROL KNOB Use to control Right Rear Element F HOT SURFACE INDICATOR LIGHT It will glow as long as any surface cooking area is too hot to touch ...

Page 12: ...Cooking Do not place or store flammable or heatsensitive items on the induction cooktop even when the cooktop is not in use Place cookware on the cooking elements before turning on the induction cooktop Do not place sealed containers on the cooktop During Cooking Do not place metallic objects such as knives forks spoons and lids on the induction cooktop surface they can get hot Use this appliance ...

Page 13: ...p Fan would operate to make the product cool if the combined heat of the oven and the surface burners is sufficiently high Power Management The cooking zones which consist of paired cooking elements are restricted to drawing a certain maximum amount of power If you turn on the Boost function for one element while its paired element is in use the Power Management function may automatically reduce t...

Page 14: ...Lockout Press the button to select Probe function Press and hold button for three seconds to lock the door and control panel 5 Timer On Off Connect Press the button to set or cancel timer on oven Press and hold button for three seconds to connect the Wi Fi To disconnect the appliance from the network delete it from the registered appliances in the app 6 Oven Light Press the button to turn oven lig...

Page 15: ...s to set the desired hour mode on the clock 4 Press Start to accept the desired change 2 CONVECTION AUTO CONVERSION 1 Set the oven mode knob to the Off position 2 Press and hold Start Time for 3 seconds Then press Start Time until Auto appears in the display 3 Press plus or minus to enable or disable the feature 4 Press Start to accept the change 3 THERMOSTAT ADJUSTMENT 1 Set the oven mode knob to...

Page 16: ...ins on 5 To deactivate the Lockout feature press and hold Probe for three seconds The unlock melody sounds and the door and the controls unlock 7 SELF CLEAN 1 Remove all racks and accessories from the oven 2 Turn the oven mode knob to select Self Clean The oven defaults to the recommended four hour Self Clean for a moderately soiled oven Press plus or minus to select a Self Clean Time from 3 to 5 ...

Page 17: ...ed by LG with your range Do not put food or foil directly on the surface or base of the warming drawer This may result in damage to your drawer and may spoil your food Do not place plastic wrap in the warming drawer or use it to cover food being heated in the warming drawer Plastic may melt onto the drawer or surrounding areas and is very difficult to remove Use only aluminum foil or cookware that...

Page 18: ...The components and their locations are shown below COMPONENT LOCATIONS Door Locking Motor Micro Switch Oven lamp Inner broil heater Infinite switch Encoder PCB Oven Sensor Outer broil heater Convection Heater Warm drawer heater Convection Motor Surface Elements Hinge Door Switch Door Latch Assembly ...

Page 19: ... 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 present and you can cut yourself Back ...

Page 20: ... Power PCB Disconnect 2ea connectors 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 present and you can cut yourself...

Page 21: ...the 7ea connectors of Main PCB and Cooktop REASSEMBLY NOTE When you reinstall the controller make sure that the cooktop gasket is fixed into the cooktop correctly Cooktop Gasket 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 ...

Page 22: ... Main PCB and separate Main PCB after unplugging the connectors Buzzer PCB NFC PCB Key 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 electric range handling the sheet metal p...

Page 23: ... screw of Knob Housing d After replacing the infinite switch finally check the electric and wiring Picture COM 4 3 2 1 4 P1 Pilot P2 2 LR CR LF RF RR Position LR CR LF RF RR P1 YL P2 RD RD 1 WH YL YL WH 2 PK GY GL RK BR 3 BR BL BL BR 4 VI OR OR VI OR OR PILOT GY COM RD RD RD RD RD RD RD WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operat...

Page 24: ...e 2 screws in front of cooktop b Unplug the 1 connector c Pull the Cooktop vertically from the range 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 she...

Page 25: ... Remove the Ceramic glass Cooktop 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 present and you can cut yourself Fr...

Page 26: ...t side of the Case Assembly c Pull the each working coil plate to the opposite direction Be careful when Pull If not Connector would be broken d Unplug the 2 LED PCB connectors REMOVING THE WORKING COIL PLATE AND WORKING COIL Earth Wire Screw 1EA Burner Insulator 2EA LED Packing 4EA MICA Sheet 4EA WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts be...

Page 27: ...Remove the 12 working coil screws from the working coil plate Top Sensor 2EA Thermal Fuse 2EA Left 4 screws Right 4 screws CAUTION When you assemble the Working coil plate Make sure the MICA Sheet direction and position as below When you assemble the Working coil plate Make sure the LED PCB harness position as below When you assemble the Working coil plate Make sure the Working coil harness positi...

Page 28: ...t Front element When you assemble the Box Fan Harness Make sure that the earth harness should be twisted with Right Box Fan harness When you assemble the Cooktop Make sure the Power Harness locking as below When you assemble the Cooktop Make sure that Bottom pin guide of Working coil should be matched with Guide hole of Working coil plate ...

Page 29: ... Remove the Top sensor thermal fuse and Packing Gasket from the working coil b Remove the thermal fuse form the packing c To remove the top sensor from packing top sensor connector should be put into the packing gasket hole After that pull the opposite part for connector to escape from packing WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before...

Page 30: ...ter Connector b Remove the 6 Screws from the PCB Case c Remove the 4 Screws from the NOISE FILTER PCB and INVERTER 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 electric rang...

Page 31: ...ove 1 screw above the film and pick it out f Remove 2 earth screws from the cooktop case plate Left Same as Right Side Left Same as Right Side Screw 1EA Earth Screw 2EA CAUTION When you assemble the Noise filter and Inverter PCB Make sure the harness position as below Top sensor Harness and Thermal fuse Harness Should pass under the PCB Case Left Right ...

Page 32: ...om the Cooktop main PCB b Change the position in reverse After that remove the 4 Box fan screws 8 To remove the BLOW FAN a Unplug the 1 BLOW FAN connector from the Inverter PCB b Change the position in reverse After that remove the 4 Blow fan screws WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Fa...

Page 33: ...age 3 9 10 7 To remove the LED PCB a Remove the 4 Screws from the LED PCB Case b Pull the LED PCB Case from the working coil plate c Pull the LED PCB from the LED PCB Case 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 ...

Page 34: ...ion when you assemble the LED PCB Supporter with Working coil insulator the PCB P No character should be right position as below this method is applied to all LED PCB equally When you assemble the LED PCB Make sure the PCB Harness connection as below EBR82746403 EBR82746402 EBR82746404 EBR82746401 Check the P No Left Back Side Right Back Side Assembly Direction ...

Page 35: ...m the working coil plate b Unplug the all connectors from cooktop main PCB c Push the main PCB Case Hook to come out the main pcb After that pull out the main PCB from the PCB Case 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 electric...

Page 36: ...tors from the warm heater 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 present and you can cut yourself Warm HTR S...

Page 37: ...oling motor d Remove the 3 screws on the main duct from the cooling motor e To remove the main duct remove the 7 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 Side Brackets WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all...

Page 38: ...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 Actuating Rod CAUTION When you assemble the Cooling Fan Make sure the harness position as below Twi...

Page 39: ... ELEMENT CHARCOAL HEATER 1 Turn off the electrical supply going to the range 2 Remove the cooktop see page 3 4 for the procedure 3 Unplug 2 connectors at each point 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 shoc...

Page 40: ...d remove 4 screws 5 Remove 2 screws and separate the broil assembly from the upper cavity 6 Remove 2 screws and heater cover mesh 7 Pull up the broil heater and remove from the Spring 4 Screws 2 Screws Heater cover Broil heater Spring 2 Screws ...

Page 41: ...s 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 Fan cover Washer Convection heater Fan bl...

Page 42: ...ve the socket from the front of the oven you will have to push the socket out from the back of the unit 6 Disconnect the wires from the socket terminals Glass cover Bulb Socket Clips CAUTION Be careful not to scratch or chip the oven liner paint when you remove the oven light socket in the next step WARNING DISCONNECT power supply cord from the outlet before servicing Replace all panels and parts ...

Page 43: ... 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 feature i...

Page 44: ...ove an oven temperature sensor zdisconnect the connector from the main harness and remove the mounting screw in oven cavity Main 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 personal injury death or electrical sho...

Page 45: ...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 freely Step 5 Lift door up an...

Page 46: ... to seat bearing glides into position Step 5 Replace the two screws 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 the two screws Step 3 Locate the glide lever on each side of the drawer Push down on the left glide lever and pull up o...

Page 47: ...move 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 injury death or electrical shock CAUTION Be c...

Page 48: ...ndle air guide a Remove 2 screws from air guide and then remove the air guide by lifting that b Remove 2 screws from handle and then remove the door bracket and door handle Bracket 5 screws 2 Screws 2 screws 2 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 seve...

Page 49: ... oven door glass make sure that the insulation is not visible in the glass after the door is reassembled Outer glass lnner Oven Door Glass Bracket 7 To remove a hinge hanger assembly a Follow the step 3 4 on page 3 28 b Place the frame assembly on a padded work surface c Remove 4screws from door frame middle d Remove the 2 screws from the hinge bottom e Remove the hinge hanger after removing the d...

Page 50: ...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 Gasket clip Door gasket Liner Hole 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 51: ...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 before operating Reconnect all grounding devices after servicing Failure to do so can result in death or e...

Page 52: ...2 Measure the resistance Multiple meter scale R x 1000 Door latch open Door latch Locked NO COM Continuity Infinite NOTE After checking for the continuity of switch make sure that they are connected correctly Oven Sensor 1 Refer to page 3 27 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1000 Normal Approximately 1 09 kΩ 10 If not replace NOTE Oven...

Page 53: ... the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1 Normal Approximately 49 Ω 10 If not replace Convection heater 1 Refer to page 3 24 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1 Normal Approximately 22 Ω 10 If not replace NOTE Ω Value was tested at room temperature 77 F 25 C Be careful the element i...

Page 54: ...4 4 Components Test procedures Results Oven lamp 1 Refer to page 3 26 for the servicing procedure 2 Measure the resistance Multiple meter scale R x 1000 Normal Below 5 Ω If not replace ...

Page 55: ... 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 Infinite Switch Knob Position Results Single type LR RR CR Off P1 to 2 Infinite open circuit P2 to 4 Infinite open circuit On P1 to 2 Continuity short circuit P2 to 4 Continuity short circuit ...

Page 56: ...er scale to 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 COM to 1 2 3 4 COM 3 2 1 Infinite Switch Knob Position Results LF LR CR RF Off COM to 1 2 3 4 Infinite open circuit On COM to 1 2 3 4 Continuity short circuit ...

Page 57: ... meter scale to the R x 1 3 Disconnect wires from cook top elements 4 Touch the ohmmeter test leads to the element terminal 1 and 2 The meter should indicate 10 Ω 10 5 Use the LCR meter to measure the inductance value Touch the LCR meter leads to the element terminal 1 and 2 The meter should indicate 44 5 uH 5uH inductance value in condition of 1kHz and 0 3V 1 2 ...

Page 58: ...cale to the R x 1 3 Disconnect wires from cook top elements 4 Touch the ohmmeter test leads to the element terminal 1 and 2 The meter should indicate 10 Ω 10 5 Use the LCR meter to measure the inductance value Touch the LCR meter leads to the element terminal 1 and 2 The meter should indicate 45 0 uH 5 inductance value in condition of 1kHz and 0 3V 1 2 ...

Page 59: ...ale to the R x 1 3 Disconnect wires from cook top elements 4 Touch the ohmmeter test leads to the element terminal 1 and 2 The meter should indicate 10 Ω 10 5 Use the LCR meter to measure the inductance value Touch the LCR meter leads to the element terminal 1 and 2 The meter should indicate 70 0 uH 5 uH inductance value in condition of 1kHz and 0 3V 1 2 ...

Page 60: ...s to the element terminal E1 and E2 The meter should indicate 570 Ω 10 Normal Approximately 570 Ω If not replace 1A 2A 1E 2E 1A 2A 1E 2E 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 0 Ω 1A 2A 1E 2E 1A 2A 1E 2E Below 150 F open c...

Page 61: ...ELLOW PK PINK BL BLUE BR BROWN GN GREEN GY GRAY OR ORANGE VI VIOLET 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 ...

Page 62: ...cking 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 CONV BAKE CONV ROAST SELF CLEANING ...

Page 63: ...5 3 OVEN LIGHT Warming Drawer RR Cook top Element For Model LSE4617ST ...

Page 64: ...5 4 Left Rear Center Rear Element RF Cook top Element Left Front Element For Model LSE4617ST ...

Page 65: ...5 5 BROIL SPEED BROIL BAKE SPEED ROAST WARM PROOF EASY CLEAN ...

Page 66: ...control Main PCB P N EBR79332501 SMPS PCB P N EBR80595701 Touch PCB P N EBR79627801 Encoder PCB P N EBR80327001 Wifi PCB P N EAX66957201 Buzzer PCB P N EBR76332902 Relay PCB P N EBR80595405 Front Back Controller assembly ...

Page 67: ...6 2 Composition of control Main PCB P N EBR79332501 P N EBR80595405 Relay PCB CN64 CN40 CN03 CN21 CN22 CN50 CN51 CN41 CN60 CN53 CN63 CN52 CN51 CN53 ...

Page 68: ...6 3 Composition of control SMPS PCB Encoder PCB CN02 CN01 CN41 P N EBR80595701 P N EBR80327001 ...

Page 69: ...6 4 Composition of control Touch PCB Wifi PCB and Buzzer PCB P N EBR79627801 P N EAX66957201 P N EBR76332902 ...

Page 70: ... placed in the Off 2 Press the button in the following order and hold for 3 seconds simultaneously 3 Press the OVEN LIGHT button again 4 Select the t0 by press the button 5 Press the START button 6 Start the test by press the START button again Model Option Software version Only software version is displayed at the right digits ...

Page 71: ...layed 7 Whenever you input the START button the relay operation sequence should be as seen below Relay Operation Sequence Conv Heater Broil Inne Broil Outer DLB C Fan High C Fan Low B Fan High B Fan Low RY11 RY12 RY5 RY13 RY8 RY9 RY1 RY2 Active Load Icon SW Version ...

Page 72: ... 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 ...

Page 73: ...ps 1 Press the any button and encoder is placed in the Off 2 Press the button in the following order and hold for 3 seconds simultaneously If the oven has a malfunction the Oven will show the failure Code like FIG 1 If the oven do not has any failure the Oven will show it like FIG 2 NOTE After checking the F code move the encoder knob to remove all codes FIG 1 FIG 2 Type of F Code Type of F Code T...

Page 74: ...with the starting temperature for 5minutes after the start of cooking 1 Electric Wiring 2 Oven Sensor F10 Door Lock Fail In case of Door Lock Failure during operating Lock motor 1 Electric Wiring 2 Motor s Resistance 3 Micro Switch F11 Comm Error The Communication Error Happened Between Cooktop PCB and Oven PCB Over 10 seconds in the self clean mode 1 Electric Wiring 2 Check the PCB CF1 LF Top Sen...

Page 75: ...Check The voltage of Power Concent CFF Box fan Error Box fan not working properly 1 Check the Electrical Wiring 2 Replace the Box Fan Additional Error Symptoms Possible Causes Number of Flashes Explanation Check Point Surface element control beeps and entire LED barflashes Electric control has detected a fault condition Turn the control knob to theOff position to clear the display And stop the bee...

Page 76: ...E Symptom Check Point 1 Power Failure Dead 2 No Display 1 Check Electrical Wiring 2 Check the SMPS PCB Input Voltage with CN01 Main PCB CN03 CN02 SMPS PCB CN01 Thermostat WH RD Pin No 1 3 4 7 6 7 Vf 4 3V 33V 12V Voltage CN01 CN02 CN03 ...

Page 77: ...ctive harness replace or fix 1 No Yes Check the connection of Power Cord Normal Reconnect If defective harness replace or fix 2 3 Check the AC input of SMPS PCB SMPS PCB CN01 Pin 1 and 3 120V AC No Yes Go to 7 On the next Page 4 No Yes Check the connection of L1 and N at Terminal block Normal Reconnect 5 No Yes Check the Thermostat Normal Short Abnormal Open Normal Replace the Thermostat Replace t...

Page 78: ... connecting states between CN02 of SMPS PCB and CN03 of Main PCB Is it OK No Yes Replace the Main PCB 7 Reconnect If defective harness replace or fix If the same phenomenon occurs even though after fixed connection you should replace the Main PCB ...

Page 79: ... RY10 Broil Outer Broil Inner Conv Heater Warm Drawer RY13 C B A A B C D E F G H Symptom Check Point 1 No heating 2 F9 1 Check Electric Wiring 2 Check Heater s Resistance See the COMPONENET TEST section for pass fail 3 Check the Sensor See the COMPONENET TEST section for pass fail ...

Page 80: ...HART BY FAILURE CN31 Symptom Check Point 1 No heating 2 F9 1 Check Electric Wiring 2 Check Heater s Resistance See the COMPONENET TEST section for pass fail 3 Check the Sensor See the COMPONENET TEST section for pass fail ...

Page 81: ... All taps 2 Electric wiring of electric element Yes Reconnect If defective harness Replace or fix 1 Outer Broil Inner Broil 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 Inner Broil yes No Outer Broil Conv Heater ...

Page 82: ...h after replace Relay PCB you should replace the Main PCB Heater Resistance Ω Approximately Inner Broil 50 Outer Broil 23 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 encoder is placed in the Off 2 Press the button in the following order and hold for 3 seconds simultaneously 3 Press the OV...

Page 83: ...CHART BY FAILURE CN31 Symptom Check Point 1 Door Lock System Failure 2 F10 1 Check the Electrical wiring 2 Check the Motor s Resistance See the COMPONENET TEST section for pass fail 3 Check the Relay PCB Door Lock Relay ...

Page 84: ...OW CHART BY FAILURE Symptom Check Point 1 Door Lock System Failure 2 F10 1 Check the Electrical wiring 2 Check the Motor s Resistance See the COMPONENET TEST section for pass fail 3 Check the Relay PCB Door Lock Relay ...

Page 85: ...he following 1 Electric wiring of relay in Relay PCB 2 Electric wiring of Locking Motor and Micro Switch 3 Electric wiring of CN31 of Main PCB Yes Reconnect If defective harness replace or fix 2 Unplug the unit No No Note Just after self clean start the door lock motor starts to rotate During this time if the door lock switch does NOT operate properly after rotating twice then supervising circuit ...

Page 86: ...e the Main PCB Is the door lock switch micro switch normal measure the resistance of door lock switch T normally open type No Replace the micro switch 3 Yes Abnormal Normal Is the resistance of the lock motor normal measure the resistance of lock motor Normal approximately 2 6kΩ Abnormal infinite or below 5 Ω No Replace the lock motor 4 Yes ...

Page 87: ...ECKING FLOW CHART BY FAILURE CN31 Symptom Check Point 1 Sensing Fail 2 F1 3 F2 1 Check the Electrical Wiring 2 Check the Test Mode 3 Check the Sensor s Resistance See the COMPONENET TEST section for pass fail ...

Page 88: ...n 2 CN31 of Main PCB No Yes Yes Unplug the unit Sensing Fail F1 F2 Yes Reconnect or adjust the connection 1 Sensor connection CN31 Is the resistance of thermistor normal Check Pins 4 and 5 of CN31 wiring in main PCB Normal approximately 1 09kΩ at 25 C No Replace the defective Thermistor 2 CN13 ...

Page 89: ...ss the any button and encoder is placed in the Off 2 Press the button in the following order and hold for 3 seconds simultaneously 3 Press the OVEN LIGHT button again 4 Select the t3 by press the button 5 Press the START button Normal Thermistor value at room temp is from 70 F to 90 F Yes Replace the Relay PCB 3 4 Plug in the unit Replace the Main PCB No ...

Page 90: ... H D D L1 L2 RY5 RY12 RY11 RY10 Broil Outer Broil Inner Conv Heater Warm Drawer RY13 C B A A B C D E F G H Symptom Check Point 1 Oven hot 2 F6 1 Check the Resistance of the Relay 2 Check the Sensor s Resistance See the COMPONENET TEST section for pass fail ...

Page 91: ...9 16 CHECKING FLOW CHART BY FAILURE CN31 Symptom Check Point 1 Oven hot 2 F6 1 Check the Resistance of the Relay 2 Check the Sensor s Resistance See the COMPONENET TEST section for pass fail ...

Page 92: ... 1 09kΩ at 25 C No Replace the defective Thermistor 1 CN31 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 Inner Broil Relay Outer Broil Relay Conv Heater Relay Tab 02 and Tab 22 RY12 Tab 01 and Tab 11 RY5 Tab 02 and Tab 21 RY11 ...

Page 93: ...rmal Refer below Check with the test mode To enter the test mode follow these steps 1 Press the any button and encoder is placed in the Off 2 Press the button in the following order and hold for 3 seconds simultaneously 3 Press the OVEN LIGHT button again 4 Select the t3 by press the button 5 Press the START button Normal Thermistor value at room temp is from 70 F to 90 F Yes Replace the Main PCB ...

Page 94: ...9 19 CHECKING FLOW CHART BY FAILURE CN53 Symptom Check Point 1 Key not working 2 F3 Error 1 Check the Door Locking System 2 Check the Electrical Wiring ...

Page 95: ...s Touch PCB And then check button operation using key test mode o enter the test mode follow these steps 1 Press the any button and encoder is placed in the Off 2 Press the button in the following order and hold for 3 seconds simultaneously 3 Press the OVEN LIGHT button again 4 Select the t7 by press the button 5 Press the START and Check the button Refer to the next page appendix 2 3 Plug in the ...

Page 96: ...etween Main PCB s CN64 and System PCB s CN10 Reset failure log and Check the F code 1 Press the ant button and encoder is placed in the Off 2 Press the button in the following orderv and hold for 3 seconds simultaneously 3 In order to reset failure log move the encoder and place it in the Off 4 Press and hold for 3 seconds simultaneously again CN10 CN64 Harness Error Code Number of Error occurrenc...

Page 97: ...nsor Resistance 2 SHORT Yes No Reconnect or adjust the connection Replace The PCB No Yes No No 1 OPEN Is the R919 disconnected Is the resistance of R919 normal Normal approximately 1kΩ Is the CN93 disconnected or loose Connection 1 Sensor Is the CN93 normal Measure the resistance Normal infinite Abnormal shorted Replace The PCB Replace The PCB ...

Page 98: ...sor Resistance 2 SHORT Yes No Reconnect or adjust the connection Replace The PCB No Yes No No 1 OPEN Is the R921 disconnected Is the resistance of R921 normal Normal approximately 1 kΩ Is the CN92 disconnected or loose Connection 1 Sensor Is the CN92 normal Measure the resistance Normal infinite Abnormal shorted Replace The PCB Replace The PCB ...

Page 99: ...Check The Top Sensor Resistance 2 SHORT Yes No Reconnect or adjust the connection Replace The PCB No Yes No No 1 OPEN Is the R921 disconnected Normal approximately 1 kΩ Is the CN92 disconnected or loose Connection 1 Sensor Is the CN92 normal Measure the resistance Normal infinite Abnormal shorted Replace The PCB Replace The PCB ...

Page 100: ...nsor Resistance 2 SHORT Yes No Reconnect or adjust the connection Replace The PCB No Yes No No 1 OPEN Is the R919 disconnected Is the resistance of R919 normal Normal approximately 1kΩ Is the CN93 disconnected or loose Connection 1 Sensor Is the CN93 normal Measure the resistance Normal infinite Abnormal shorted Replace The PCB Replace The PCB ...

Page 101: ...T Yes No Replace The PCB Replace The PCB No No No 1 OPEN Is the R921 disconnected Is the TH91 and TH92 disconnected 1 Sensor Is the R901 and R912 normal Measure the resistance Normal 14kΩ 50kΩ Abnormal Over 50kΩ Open Under 1Ω Short Is the TH91 and TH92 normal Measure the resistance Normal 18kΩ 28kΩ Abnormal Over 28kΩ Open Under 1Ω Short Replace The PCB Replace The PCB ...

Page 102: ...No Replace The PCB Replace The PCB No No No 1 OPEN Is the R921 disconnected Is the TH91 and TH92 disconnected 1 Sensor Is the R901 and R912 normal Measure the resistance Normal 14kΩ 50kΩ Abnormal Over 50kΩ Open Under 1Ω Short s the TH91 and TH92 normal Measure the resistance Normal 18kΩ 28kΩ Abnormal Over 28kΩ Open Under 1Ω Short Replace The PCB Replace The PCB ...

Page 103: ... Error open short 1 Check the CN71 Connect Yes Reconnect or adjust the connection No No Is the CN71 normal Measure the resistance Pin to Pin Full Check Normal infinite Abnormal shorted Is the CN71 disconnected or loose Connection 1 Comm harness and connector Replace The PCB ...

Page 104: ... Error open short 1 Check the CN71 Connect Yes Reconnect or adjust the connection No No Is the CN71 normal Measure the resistance Pin to Pin Full Check Normal infinite Abnormal shorted Is the CN71 disconnected or loose Connection 1 Comm harness and connector Replace The PCB ...

Page 105: ...9 30 CHECKING FLOW CHART BY FAILURE Symptom Check Point CFA Over Current 1 Replace The INVERTER PCB See page 3 13 ...

Page 106: ...9 31 CHECKING FLOW CHART BY FAILURE Symptom Check Point CFC OVER VOLTAGE Check The voltage of Power Concent No Is the Voltage of Power Concent normal Normal Under the 288V Don t use Product ...

Page 107: ...FF Box fan Error 1 Check the Electrical Wiring 2 Replace the Box Fan END Yes Reconnect or Adjust the connection Replace PCB No No Yes Replace the Box fan Normal Check Box fan harness connect Harness connection properly Right Fan Connecter Right Fan Connecter ...

Page 108: ...START and Check the button How to check button operation 1 Keys should be accessed according to the above sequence and check the beep sound when key is accessed If Key is the normal operation will be the number that corresponds to the Key displayed on the VFD 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 defec...

Page 109: ...EXPLODED VIEW EV INTRODUCTION COOKTOP PARTS DOOR PARTS DRAWER PARTS CAVITY PARTS CONTROLLER PARTS 9504 9506 9501 8511 W229 9381 W229 9381 5080 9532 MODEL Customer Model Product Code SVC Model ...

Page 110: ...DOOR PARTS 1704 1382 1035 1015 W230 1703 1020 1008 102U W243 W222 W222 1000 102S 102L 173U W101 W101 1018 1009 W230 EV ...

Page 111: ...2 2026 303R 2087 2085 2082 2087 2082 2037 2050 260E 303L 2026 W280 2052 2052 2052 5206 260B 2001 260K 2385 260M 2051 2221 244T 244T 244T 244T 244S 244E 2052 2042 2043 2044 2046 2041 2006 2047 2090 CONTROLLER PARTS ...

Page 112: ... EV COOKTOP PARTS I 3056 3215 5536 200N 200Y 5231 1022 200D 200E 200E 200M 200W 200X 3016 330M 5515 5013 5515 5013 5515 5013 330H 200Z 3022 330S 330S 5013 5515 301C ...

Page 113: ... EV 5134 5466 5466 5444 5612 5235 5235 5612 5444 COOKTOP PARTS II ...

Page 114: ... EV DRAWER PARTS 8523 8507 8501 8514 8517 8021 8505 8524 8602 8520 8512 5505 5505 8504 6008 8508 8513 1009 8519 851D 851D W230 ...

Page 115: ... 3122 5513 5510 5506 5509 5039 3057 3013 3093 3024 5502 5507 5063 5700 5504 5501 5124 5405 5408 W102 5020 5603 W232 5533 W124 W233 5521 W291 3222 5556 5006 5019 3208 5535 W129 5021 5532 5516 5511 5032 3501 3511 5066 5508 W140 507R 5611 5518 5611 W287 507S 5014 2 5603 3006 5465 5027 ...

Page 116: ......

Search results

Summary of Contents for LSE4617ST

Reviews:

Related manuals for LSE4617ST

Brands by name

Popular brands

LG LSE4617ST, Service Manual

Search results

Summary of Contents for LSE4617ST

Reviews:

Related manuals for LSE4617ST

Brands by name

Popular brands