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LG LSSE3029BD Service Manual

30” electric range
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삼
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30" ELECTRIC RANGE
SERVICE MANUAL
MODEL: LSSE3026ST
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL37118336
LSSE3029BD
1
Internal Use Only
June, 2015
Printed in Korea

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  • Page 1 삼 흥 정 판 Internal Use Only 30” ELECTRIC RANGE SERVICE MANUAL MODEL: LSSE3026ST LSSE3029BD CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. June, 2015 P/NO : MFL37118336 Printed in Korea...
  • Page 2 SAFETY PRECAUTIONS • Repairs of the appliance should be carried out by a licensed technician only. Incorrect repairs may result in dangerous situations. If you need repairs, contact an LG Service Center or your dealer. • If the power cord is defective, it must be replaced by a qualified service agent with a UL listed range cord.

  • Page 3: Table Of Contents

    TABLE OF CONTENTS (Page) GENERAL- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1 ~ 1-5 •...
  • Page 4 (Page) COMPONENT TEST - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1 ~ 4-15 - Infinite switch (LF Switch) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-6 - Infinite switch (RF Switch) - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-6 - Variable Thermostat - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-11...

  • Page 5: General

    GENERAL IMPOR ANT SAFETY INSTRUCTIONS IMPOR ANT SAFETY INSTRUCTIONS Read and follow all instructions before using your oven to prevent the risk of fire, electric shock, injury to person, or damage when using the range. This guide don’t cover all possible conditions that may occur. For further assistance contact your service agent or manufacturer.
  • Page 6 GENERAL IMPOR ANT SAFETY INSTRUCTIONS IMPOR ANT SAFETY INSTRUCTIONS • Be sure your appliance is properly installed and grounded by a WARNING qualified technician. • Do not repair or replace any part of the appliance unless • DO NOT touch heating elements or specifically recommended in the manual.
  • Page 7 GENERAL IMPOR ANT SAFETY INSTRUCTIONS IMPOR ANT SAFETY INSTRUCTIONS • Do Not Leave Children Alone - Children should not be left alone or SELF-CLEAN OVENS unattended in area where appliance is in use. They should never be • Do Not Clean Door Gasket – The door gasket is essential for a allowed to sit or stand on any part of the appliance.

  • Page 8: Model & Serial Number Label And Tech Sheet Locations

    GENERAL MODEL & SERIAL NUMBER LABEL MODEL & SERIAL NUMBER LABEL AND TECH SHEET LOCA TIONS AND TECH SHEET LOCA TIONS The Model/Serial Number label and Tech Sheet locations are shown below. Tech Sheet Location Model & Serial Number Location...

  • Page 9: Specifications

    GENERAL SPECIFICA TIONS SPECIFICA TIONS Model Number LSSE3026ST / LSSE3029BD Category Slide-in oven range Overall Width 29⅞ Installation type Slide-In Color availability Control Oven Glass Touch Cooktop Knob Display Electronic clock & timer Control lock capability Audible preheat signal Special function Setting (6 categories) 1.

  • Page 10: Using Your Range

    USING YOUR RANGE GENERAL INFORMA TION GENERAL INFORMA TION Convection Bake / Roast Mode Rating Label Upper element, lower element, Rear element(some Model numbers are recorded on the rating label. model) and fan operate during convection bake. Rating label is located on the lower front left corner Convection bake should be used for cooking of the oven frame.

  • Page 11: Control Panel Features

    USING YOUR RANGE CONTROL P ANEL FEA TURES CONTROL P ANEL FEA TURES WARM SINGLE SINGLE ZONE TRIPLE DUAL A. ELEMENT ON/OFF INDICATOR LIGHT: Shows F. RIGHT FRONT (TRIPLE) CONTRON KNOB : Use whether the surface element is turned on/off or hot. to control Right Front Element.
  • Page 12 USING YOUR RANGE Use to turn on the surface elements. An infinite To turn on the Dual element: choice of heat settings is available from LOW to There is one dual element located in the left front HIGH. The knobs can be set on or between any of position.
  • Page 13 USING YOUR RANGE To turn on the Warming Zone: CAUTION • FOOD POISON HAZARD: Bacteria may grow in food at temperatures below 140 °F. - Always start with hot food. Do not use the warm setting to heat cold food. - Do not use the warm setting for more than 2 hours.
  • Page 14 USING YOUR RANGE CONTROL P ANEL FEA TURES CONTROL P ANEL FEA TURES 1. Smart Diagnosis TM – Use during the Smart 8. Warming Drawer – Press the button to select the Diagnosis feature. warming drawer function. 2. Smart Features – The Tag On icon, for use with 9.

  • Page 15: Setting The Clock

    USING YOUR RANGE 1. SETTING THE CLOCK 2) CONVECTION AUTO CONVERSION 1. Set the oven mode knob to the Off position. 1. Set both oven mode knobs to the Off position. 2 .Press and hold Start Time for 3 seconds. 2.

  • Page 16: Bake, Timed Bake, Delayed Timed Bake

    USING YOUR RANGE 5. BAKE, TIMED BAKE, DELAYED TIMED BAKE Desired BAKE START temperature COOK Desired time START TIME START Desired START TIME start time * This feature can also be used with the: CONVECTION BAKE and CONVECTION ROAST modes. 6.

  • Page 17: Warming Drawer

    - The warming drawer contains a heating element which may damage any items not specifically designed to be used with it and should only be used to store cookware specifically supplied by LG Warming drawer rack in position with your range.
  • Page 18 USING YOUR RANGE This section instructs you on how to service each component inside the range. The components and their locations are shown below. COMPONENT LOCA TIONS COMPONENT LOCA TIONS Surface Elements Door Locking Motor & Micro Switch Door Switch Oven lamp Infinite switch Inner broil heater...

  • Page 19: Component Access

    COMPONENT ACCESS REMOVING THE BACK 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.
  • Page 20 COMPONENT ACCESS REMOVING THE OVEN RELA Y PCB, POWER PCB, REMOVING THE OVEN RELA Y PCB, POWER PCB, POWER RELA Y AND SURGE FIL POWER RELA Y AND SURGE FIL 4. To remove the Oven Relay PCB, Disconnect 8ea WARNING connectors.

  • Page 21: Removiing The Controller

    COMPONENT ACCESS REMOVING THE CONTROLLER REMOVING THE CONTROLLER 6. To remove the controller 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 22: Removiing The Maiin Pcb And Key Pcb Assembly

    COMPONENT ACCESS REMOVING THE MAIN PCB AND KEY PCB ASSEMBL REMOVING THE MAIN PCB AND KEY PCB ASSEMBL 4. Controller wire should be held by the wire holding WARNING structure of controller assembly. • DISCONNECT power supply cord from the outlet before servicing. •...

  • Page 23: Removiing Knob And Iinfiiniite Swiitch

    COMPONENT ACCESS REMOVING KNOB AND INFINITE SWITCH REMOVING KNOB AND INFINITE SWITCH Position Wire color WARNING YL+YL • DISCONNECT power supply cord RD+BN from the outlet before servicing. Switch • Replace all panels and parts before operating. PILOT BL+WH • RECONNECT all grounding devices. BP+BK - Failure to do so can result in severe personal RD+RD...
  • Page 24 COMPONENT ACCESS REMOVING THE CERAMIC GLASS COOKT , THE REMOVING THE CERAMIC GLASS COOKT , THE SURF ACE ELEMENT AND THE HOT SURF ACE LAMP SURF ACE ELEMENT AND THE HOT SURF ACE LAMP c) Remove 2 connectors which connect controller WARNING harness with cooktop harness.
  • Page 25 COMPONENT ACCESS REMOVING THE CERAMIC GLASS COOKT , THE REMOVING THE CERAMIC GLASS COOKT , THE SURF ACE ELEMENT AND THE HOT SURF ACE LAMP SURF ACE ELEMENT AND THE HOT SURF ACE LAMP b) Remove the 3 screws on the back panel for WARNING remove cooling motor c) Remove the wires from the cooling motor...
  • Page 26 COMPONENT ACCESS e) Remove the door latch from the burner box 8. To remove the door switch and unhook the actuating rod. 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.

  • Page 27: Removiing The Broiil Element

    COMPONENT ACCESS REMOVING THE BROIL ELEMENT REMOVING THE BROIL ELEMENT b) Remove the 4 screws from the front and rear WARNING brackets. • DISCONNECT power supply cord Screws from the outlet before servicing. • Replace all panels and parts before operating.
  • Page 28 COMPONENT ACCESS 7. Pull up the broil heater and remove from the 4. Release 2 hooks and remove 4 screws. Spring. Screws Broil heater 5. Remove 2 screws and separate the broil assembly from the upper cavity. Screws Spring 6. Remove 2 screws and heater cover(mesh). Heater cover 2 Screws...
  • Page 29 COMPONENT ACCESS REMOVING THE CONVECTION ELEMENT AN BLADE AND F AN MOT REMOVING THE CONVECTION ELEMENT AN BLADE AND F AN MOT 1. Disconnect power and remove oven racks. 7. To remove Fan blade, remove Nut by screwing clockwise. Fan blade can be replaced from inside 2.

  • Page 30: Removiing The Oven Liight & Socket Assembly

    COMPONENT ACCESS REMOVING THE OVEN LIGHT & SOCKET ASSEMBL REMOVING THE OVEN LIGHT & SOCKET ASSEMBL CAUTION WARNING • DISCONNECT power supply cord • Be careful not to scratch or chip the from the outlet before servicing. oven liner paint when you remove •...
  • Page 31 COMPONENT ACCESS REMOVING THE LA TCH DRIVE ASSEMBL REMOVING THE LA TCH DRIVE ASSEMBL DOOR LOCKING MECHANISM WARNING The door lock assembly is located at the back side • DISCONNECT power supply cord of range. from the outlet before servicing. The structural elements are as below.

  • Page 32: Removiing The Oven Temperature Sensors

    COMPONENT ACCESS REMOVING THE OVEN TEMPERA TURE SENSORS REMOVING THE OVEN TEMPERA TURE SENSORS 5. To remove an oven temperature sensor, WARNING zdisconnect the connector from the main harness and remove the mounting screw in oven cavity. • DISCONNECT power supply cord from the outlet before servicing.
  • Page 33 COMPONENT ACCESS REMOVING & REPLACING THE LIT -OFF OVEN DOOR REMOVING & REPLACING THE LIT -OFF OVEN DOOR AND DRA AND DRA Replacing the Door CAUTION Step. 1 • Be careful when removing and Firmly grasp both lifting the door. sides of the door •...
  • Page 34 COMPONENT ACCESS REMOVING & REPLACING THE LIT -OFF OVEN DOOR REMOVING & REPLACING THE LIT -OFF OVEN DOOR AND DRA AND DRA Step. 4 CAUTION Pull the drawer away from the range. • Disconnect the electrical power to the range at the main fuse or circuit Replacing the Door breaker panel.

  • Page 35: Removiing A Siide Panel

    COMPONENT ACCESS REMOVING A SIDE P ANEL REMOVING A SIDE P ANEL 8. Pull the back of the side panel out from the range WARNING approximately 10˚ • DISCONNECT power supply cord from the outlet before servicing. • Replace all panels and parts before operating.

  • Page 36: Removiing The Oven Door Handle & Glass

    COMPONENT ACCESS REMOVING THE OVEN DOOR HANDLE & GLASS REMOVING THE OVEN DOOR HANDLE & GLASS 6. To remove the door handle & air guide WARNING a) Remove 2 screws from air guide and then remove the air guide by lifting that. •...
  • Page 37 COMPONENT ACCESS 7. To remove a hinge hanger assembly: 8. To remove the oven door glass assembly: a) Follow the step 3~4 on page 3-16. a) Remove both hinge hanger. b) Place the frame assembly on a padded work b) Remove the 10 screws the out glass brackets. surface.

  • Page 38: Removiing The Oven Door Gasket

    COMPONENT ACCESS REMOVING THE OVEN DOOR GASKET REMOVING THE OVEN DOOR GASKET 3. Pull the ends of the gasket out of the liner holes. WARNING Liner Hole • DISCONNECT power supply cord from the outlet before servicing. • Replace all panels and parts before operating.

  • Page 39: Component Test

    COMPONENT TEST Before testing any of components, perform the following checks: NOTE: 1. The most common cause for control failure is corrosion on connectors. Therefore, disconnecting and reconnecting wires will be necessary throughout test procedures 2. ALL units in the first few days of use should be checked for mis-wiring or loose connections 1.

  • Page 40: Door Locking Motor

    Components Test procedures Results Normal: Approximately Door locking Motor 1. Refer to page 3-14 for the servicing procedure 2.6 kΩ ± 10% 2. Measure the resistance If not replace (Multiple meter scale: R x 1000) Abnormal: Infinite(open) below 5Ω (shorted) Door latch Door latch Micro Switch...

  • Page 41: Door Switch

    Components Test procedures Results Door switch Door open Door closed 1. Refer to page 3-9 for the servicing procedure 2. Measure the resistance after cooling down (Multiple meter scale: R x 1000) Continuity Infinite Outer Broil heater Normal: Approximately 1. Refer to page 3-10 for the servicing procedure 23 Ω...

  • Page 42: Oven Lamp

    Components Test procedures Results Normal: Below 5 Ω. Oven lamp 1. Measure the resistance after cooling down If not replace (Multiple meter scale: R x1)
  • Page 43 Components Test procedures Results Infinite switch 1. Refer to page 3-6 for the servicing procedure. (Single units): 2. Set the Multiple meter scale to the R x 1000. LR switch 3. Disconnect all wires from infinite switch. RR switch 4. When turn on/turn off the knob, position measure CR switch the resistance between P2 to 4 and P2 to PILOT.

  • Page 44: Infinite Switch (Lf Switch)

    Components Test procedures Results Infinite switch 1. Refer to page 3-6 for the servicing procedure. (Double units): 2. Set the Multiple meter scale to the R x 1000. LF switch 3. Disconnect all wires from infinite switch. 4. Push in and turn left knob to check the single type. 5.
  • Page 45 Components Test procedures Results Infinite switch 7. When turn on/turn off the knob, position measure (Double units): the resistance between S1 to S2 LF switch 8. After check the single type, check the dual type at the same procedure. Infinite Switch Knob Position Results P1 - 2...
  • Page 46 Components Test procedures Results Infinite switch 1. Refer to page 3-6 for the servicing procedure. (Triple units): 2. Set the Multiple meter scale to the R x 1000. RF switch 3. Disconnect all wires from infinite switch. 4. Push in and turn left knob to check the single type. 5.
  • Page 47 Components Test procedures Results Infinite switch 7. When turn on/turn off the knob, position measure (Triple units): the resistance between S1 to S2 RF switch 8. When turn on/turn off the knob, position measure the resistance between P2 to 4b 9.

  • Page 48: Variable Thermostat

    Components Test procedures Results Variable Thermostat : 1. Refer to page 3-19 for the servicing procedure. NOTE: Ω Value was tested Lower oven switch 2. Set the Multiple meter scale to the R x 1000. at room temperature (75F/24˚C) 3. Disconnect all wires from Variable Thermostat 4.

  • Page 49: Single Surface Units: (Lr, Rr Element)

    Components Test procedures Results Single surface units: 1. Refer to page 3-7 for the servicing procedure Left Rear (LR) 2. Set the Multiple meter scale to the R x 1 3. Disconnect wires from cook-top elements Right Rear(RR) 4. Touch the ohmmeter test leads to the element Element terminal and 1A.

  • Page 50: Center Rear(Cr) Element

    Components Test procedures Results Center Rear(CR) 1. Refer to page 3-7 for the servicing procedure Element 2. Set the Multiple meter scale to the R x 1 : Warming Zone 3. Disconnect wires from cook-top elements (Plane Heater) 4. Touch the ohmmeter test leads to the element terminal E1 and E2.

  • Page 51: Dual Surface Units (Lf Element)

    Components Test procedures Results Dual surface units: 1. Refer to page 3-7 for the servicing procedure Left Front(LF) 2. Set the Multiple meter scale to the R x1 Element 3. Disconnect wires from cook-top elements 4. Touch the ohmmeter test leads to the (E1 & 1A) and (E2 &...
  • Page 52 Components Test procedures Results Triple surface unit: 1. Refer to page 3-7 for the servicing procedure Right Front(RF) 2. Set the Multiple meter scale to the R x 1 Element 3. Disconnect wires from cook-top elements 4. Touch the ohmmeter test leads to the (E1 & 1A) and (E2 &...

  • Page 53: Schematic Diagram

    SCHEMATIC DIAGRAM NOTE: WARNING Schematic diagram shows POWER MUST BE DISCONNECTED BEFORE oven door opened and unlocked.All elements are SERVICING THE APPLIANCE. FAILURE TO DO SO set to “OFF”. CAN RESULT IN DEATH OR ELECTRICAL SHOCK.

  • Page 54: Conv. Bake / Conv. Roast

    STRIP CIRCUITS STRIP CIRCUITS Complete the following steps before checking electric oven circuit : 1.Check the line voltage, household fuse or circuit breaker. 2.Check for loose wiring or mis-wiring within electric range. NOTE: The following individual circuits are for use in diagnosis, and are shown in the ON position. For Model: LSE3092ST CONV.

  • Page 55: Oven Light

    For Model: LSE3092ST OVEN LIGHT Warming Drawer CR Cook-top Element RR Cook-top Element...

  • Page 56: Lr Cook-Top Element

    For Model: LSE3092ST LR Cook-top Element LF Cook-top Element RF Cook-top Element...

  • Page 57: Warm-Proof-Easy-Clean

    Broil-Speed broil Warm-Proof-Easy-clean Boke-Speed roost...

  • Page 58: Composition Of Control

    COMPOSITION OF CONTROL 6-1. Wiring Diagram...
  • Page 59 COMPOSITION OF CONTROL 6-2. Composition of control Main PCB ( P/N : EBR80595603) Front Relay PCB ( P/N : EBR80595405) Back SMPS PCB ( P/N : EBR80595701) Touch PCB ( P/N : EBR79627801) Encoder PCB ( P/N : EBR80327001) Controller assembly NFC PCB ( P/N : EBR78789101) Buzzer PCB ( P/N : EBR76332902)

  • Page 60: Main Pcb

    COMPOSITION OF CONTROL Main PCB Main PCB ( P/N : EBR80595603) CN52 CN22 CN53 CN20 CN51 CN01 CN31 CN40 CN03 CN50 Relay PCB Relay PCB ( P/N : EBR80595405) CN52 CN51 CN53...

  • Page 61: Smps Pcb

    COMPOSITION OF CONTROL SMPS PCB SMPS PCB ( P/N : EBR80595701) CN02 CN01 Encoder PCB Encoder PCB ( P/N : EBR80327001) CN41...

  • Page 62: Touch Pcb

    COMPOSITION OF CONTROL ouch PCB ouch PCB ( P/N : EBR79627801) NFC and Buzzer PCB NFC and Buzzer PCB ( P/N : EBR76332902) ( P/N : EBR78789101)

  • Page 63: Svc Test Mode

    SVC TEST MODE 7-1 Sequence of SVC 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 : : + + Oven light (Oven Light hold for 3 seconds) (3) Press the OVEN LIGHT button again.
  • Page 64 SVC TEST MODE • Active Load Icon • SW Version Current inspecting Relay’s information is displayed (7) Whenever you input the START button, the relay operation sequence should be as seen below. ※ ※ Relay Operation Sequence RY11 RY12 RY13 Conv.
  • Page 65 SVC TEST MODE 7-2 Basic Check Summary Symptom : no heating(F9) Symptom : Oven hot(F6) -. Check : All heater relays and DLB -. Check: All heater relays are relay are open open/shorted Symptom : Oven lamp not operating -. Check the Lamp coil’s resistance Symptom : Sensor error or Symptom : no heating(F1,F2)

  • Page 66: Troubleshooting

    TROUBLESHOOTING 8-1 Check the Failure Code ■ When the oven has a malfunction while cooking, Cooking will be canceled and log data of F-code will be recorded in EEPROM. F-code will not display during normal operation. ■ Check the failure code following these steps. 1.

  • Page 67: Failure Code Summary

    TROUBLESHOOTING 8-2 Failure Code Summary Code Description explanation Check point Sensor open Oven Thermistor is open 1. Wiring 2. Oven Sensor Sensor short Oven Thermistor is shorted. 1. Wiring 2. Oven Sensor 1. If ‘25 key short’ occurred 3 times in 90 seconds. Key short 1.

  • Page 68: Checking Flow Chart By Failure

    CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Power Failure 1. Check Electrical Wiring (Dead) 2. Check the SMPS PCB Input Voltage with CN01 2. No Display CN03 CN02 CN01 Main PCB CN03 Pin No. Voltage Vf(4.3V) -33V CN02 Thermostat CN01 SMPS PCB...

  • Page 69: Power Failed(Dead), No Display

    CHECKING FLOW CHART BY FAILURE Power Failed (Dead), No display? Go to 7 Check the AC input of SMPS (On the next PCB. Page) Plug the unit - SMPS PCB CN01 (Pin 1 and 3) Check the button beep. 120V AC? Touch the Clear button, Change the Can hear the beep...
  • Page 70 CHECKING FLOW CHART BY FAILURE Replace the Check the connecting states Main PCB between CN02 of SMPS PCB and CN03 of Main PCB. Is it OK? Reconnect. If defective harness, replace or fix. If the same phenomenon occurs even though after fixed connection, you should replace the Main PCB...

  • Page 71: No Heating, F9

    CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. No heating 1. Check Electric Wiring 2. F9 2. Check Heater’s Resistance. 3. Check the Sensor. Broil Outer RY13 Broil Inner RY12 Conv Heater RY11 Warm Drawer RY10 pin of CN53...
  • Page 72 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. No heating 1.Check Electrical Wiring 2. F9 2.Check Heater’s Resistance. 3.Check the Sensor. CN31...
  • Page 73 CHECKING FLOW CHART BY FAILURE Oven does NOT heat, F9? Replace the Check the resistance failed heater of each heater. Normal? Unplug the unit (Measure the resistance after cooling down. The resistance Reconnect. If is shown below) Is the Connector defective disconnected or loose? harness,...
  • Page 74 CHECKING FLOW CHART BY FAILURE Unplug the unit Range Of resistance Replace the Is the resistance of defective Ω Heater Resistance[ thermistor normal? Thermistor Approximately Inner Broil Check: Outer Broil Pins 4 and 5 of CN31 in main PCB Conv. Heater Normal- approximately 1.09kΩ...
  • Page 75 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Door Lock System 1. Check the Electrical wiring Failure 2. Check the Motor’s Resistance 2. F10 3. Check the Relay PCB (Door Lock Relay) CN31...
  • Page 76 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Door Lock System 1. Check the Electrical wiring Failure 2. Check the Motor’s Resistance 2. F10 3. Check the Relay PCB (Door Lock Relay)

  • Page 77: Door Lock System Failure,F10

    CHECKING FLOW CHART BY FAILURE Door Lock System Failure,F10? Plug in the unit Unplug the unit Note : Reconnect. If Just after self-clean start, the door lock motor defective Is the Connector disconnected starts to rotate. or loose? harness, During this time if the door lock switch does replace or fix Check the following : NOT operate properly after rotating twice,...
  • Page 78 CHECKING FLOW CHART BY FAILURE Replace the Relay PCB. If the same phenomenon occurs even though after replace Relay PCB, you should replace the Main Replace the Is the door lock switch PCB. micro switch (micro switch) normal? measure the resistance of door lock switch normally open type Abnormal...
  • Page 79 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Sensing Fail 1.Check the Electrical Wiring 2. F1 2.Check the Test Mode 3. F2 3.Check the Sensor’s Resistance CN31 9-12...

  • Page 80: Sensing Fail / F1 / F2

    CHECKING FLOW CHART BY FAILURE Sensing Fail, F1, F2? Unplug the unit Replace the Is the resistance of Is the Connector Reconnect defective thermistor normal? disconnected or loose? or adjust the Thermistor 1. Sensor connection connection 2. CN31 of Main PCB Check: Pins 4 and 5 of CN31 wiring in main PCB Normal- approximately 1.09kΩ...
  • Page 81 CHECKING FLOW CHART BY FAILURE Plug in the unit Replace the Is the value of thermistor Relay PCB 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.
  • Page 82 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Oven hot 1.Check the Resistance of the Relay. 2. F6 2.Check the Sensor’s Resistance Broil Outer RY13 Broil Inner RY12 Conv Heater RY11 Warm Drawer RY10 pin of CN53 9-15...
  • Page 83 CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Oven hot 1.Check the Resistance of the Relay. 2. F6 2.Check the Sensor’s Resistance CN31 9-16...

  • Page 84: Oven Hot, F6

    CHECKING FLOW CHART BY FAILURE Oven hot, F6? Replace the Is the heater relay normal? Relay PCB Unplug the unit Measure the resistance of Heater relay and Live. Replace the Is the resistance of defective Normal : infinite thermistor normal? Thermistor Abnormal : shorted Check:...
  • Page 85 CHECKING FLOW CHART BY FAILURE Plug in the unit Replace the Is the DLB relay normal? Replace the Is the value of thermistor relay PCB Measure the resistance Main PCB normal? (Refer below) Check with the test mode Normal : infinite Abnormal : shorted To enter the test mode, follow these steps: 1.

  • Page 86: Key Not Working / F3 Error

    CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Key not working 1. Check the Door Locking System. 2. F3 Error 2. Check the Electrical Wiring. CN53 9-19...
  • Page 87 CHECKING FLOW CHART BY FAILURE Plug in the unit F3 error (Button short error) Or button does not input Replace the Control panel. (With Glass Touch PCB) Unplug the unit And then check button operation using key test mode Reconnect o enter the test mode, follow these steps: Check the connecting states or adjust the...

  • Page 88: Appendix

    APPENDIX Key operation T est sequence Key operation T est sequence 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 2.

  • Page 89: Exploded View

    #EV# EXPLODED VIEW INTRODUCTION MODEL: Customer Model Product Code SVC Model COOKTOP PARTS CONTROLLER PARTS DOOR PARTS 8511 9506 9501 9504 W229 DRAWER PARTS CAVITY PARTS...
  • Page 90 #EV# DOOR PARTS W243 102U 1008 W222 1020 1000 1703 1015 1035 1382 W230 W222 1009 W101 102S W230 173U W101 1018 102L 1735 1704...
  • Page 91 #EV# CONTROLLER PARTS 5206 2084 2085 2082 2053 2001 2006 2085 2026 244S W280 260B 260M 260E 260K 260B 244D 2037 2015 244D 2002 2050 2090 2085 2385 244A 244D 2083 244T 2042 2041 2043 2044 2046...
  • Page 92 #EV# COOKTOP PARTS 3056 3016 3014 3215 3079 330S 330S 3006 3204 3022 330M 330H 3205...
  • Page 93 #EV# DRAWER PARTS 8514 8501 8513 8523 8507 W228 8517 1009 8021 8505 8504 8524 5505 8602 8512 8708 8520 5505 8708 8519 6008 8508...
  • Page 94 #EV# CAVITY PARTS 5540 3501 3093 3024 3511 5216 3013 5517 3057 5124 3031 5510 5090 5501 5063 5504 546L 5032 5507 546R 5039 5405 5535 5502 W129 5511 5408 5006 4002 5016 3208 5611 507S 5611 507R W124 5407 W233 5535 5521...

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