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삼 흥 정 판 Internal Use Only 30” Freestanding Electric Range SERVICE MANUAL MODEL: LDE4413ST LDE4413BD CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. June, 2015 Printed in Korea P/NO : MFL37118338...
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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 done, 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.
GENERAL IMPORTANT SAFETY INSTRUCTIONS Read and follow all instructions before using your oven to prevent the risk of fire, electric shock, injury to person, or damage when using the range. This guide don’t cover all possible conditions that may occur. For further assistance contact your service agent or manufacturer.
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GENERAL IMPORTANT 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. interior surfaces of oven.
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GENERAL IMPORTANT SAFETY INSTRUCTIONS • Do Not Leave Children Alone - Children should not be left alone SELF-CLEAN OVENS or unattended in area where appliance is in use. They should • Do Not Clean Door Gasket – The door gasket is essential for never be allowed to sit or stand on any part of the appliance.
GENERAL MODEL & SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS The Model/Serial Number label and Tech Sheet locations are shown below. Model & Serial Number Location Tech Sheet Location (On Lower Rear Cover)
GENERAL SPECIFICATIONS Model Number LDE4413 Category Double oven range Overall Width 30" Installation type Freestanding Color availability Control Oven Glass Touch Cooktop Knob Display Electronic clock & timer Control lock capability Audible preheat signal Special function Setting (7 categories) 1. Change hour mode on Clock 2.
USING YOUR RANGE GENERAL INFORMATION Upper oven Rating Label Model numbers are recorded on the rating label. Broil element Before ordering parts, write down the correct model and serial number from rating label. This avoids incorrect shipments and delays. Please refer to parts reference material when ordering replacement parts.
USING YOUR RANGE CONTROL PANEL FEATURES ❶ ❷ ❸ ❹ ❺ ❻ ❼ ❽ ❾ ❿ UPPER OVEN LOWER OVEN ❶ BAKE : Use to select the Bake function of the ❾ CONV. BAKE : Use to select the Conv. Bake upper oven.
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USING YOUR RANGE CONTROL PANEL FEATURES COMMON FUNCTION LIGHT : Use to turn the Oven lights of the oven on and off. CLOCK : Use to set the time of day. SETTINGS : Use to set the time of day ...
USING YOUR RANGE 1. SETTING THE CLOCK 5. SETTING PAD: 7 types of category 1) CONVECTION AUTO CONVERSION CLEAR Inputting 1. Press SETTING pad 2 times. CLOCK START Desired time 2. Press “1” pad for ENABLE/DISABLE. 3. Press START pad. 2.
USING YOUR RANGE 6. TIMED COOK, DELAYED TIMED COOK To decrease the oven temperature For the Lower oven temperature adjustment. (For the Upper & Lower Bake, Lower CONv. Bake & Roast) 1. Press SETTING pad 3 times for the lower oven, “L-Aj”...
USING YOUR RANGE 11.wARM(For both the Upper & Lower oven) 14. SELF CLEAN (For the Upper & Lower oven) WARM UPPER or LOWER START Upper oven START SELF CLEAN Once → 4Hours WARM/PROOF Twice → 5Hours Once → WARM 3 times → 3Hours Lower oven 12.
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USING YOUR RANGE To turn on the Dual element: Use to turn on the surface elements. An infinite 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.
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USING YOUR RANGE To turn on a Triple element (on some To turn on the warming Zone: models): CAUTION There is one triple element that can be used as either a single, dual or triple element. FOOD POISON HAZARD: Bacteria 1.
COMPONENT ACCESS This section instructs you on how to service each component inside the range. The components and their locations are shown below. COMPONENT LOCATIONS Relay PCB Main PCB NFC PCB Cooktop PCB Surface Elements Buzzer PCB Door Locking Motor &...
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COMPONENT ACCESS REMOvING CONTROL COvER AND TOUCH GLASS ASSEMBLY 5. Unplug 1 connector from Touch 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 electric shock.
COMPONENT ACCESS REMOvING THE POwER CONTROL BOARD (PCB) 4. There are 4 PCB’s(except touch PCB). When you WARNING check PCB, check the proper PCB in default mode and check Main PCB. • DISCONNECT power supply cord NOTE: Refer to pages 5-1~5-3 for composition of from the outlet before servicing.
COMPONENT ACCESS REMOvING THE SURFACE ELEMENTS AND THE CERAMIC GLASS COOKTOP Step. 6 WARNING Protect the cooktop • DISCONNECT power supply cord surface and turn the from the outlet before servicing. assembly over. • Replace all panels and parts before operating.
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COMPONENT ACCESS REMOvING THE DOOR LATCH & UPPER DOOR SwITCH (For the Upper oven only) WARNING b) Remove the door latch from the burner box and unhook the actuating rod. • DISCONNECT power supply cord from the outlet before servicing. Unhook •...
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COMPONENT ACCESS REMOvING THE DOOR LATCH & LOwER DOOR SwITCH (For the Lower oven only) b) Remove 2 screws to widen the space between WARNING Upper & Lower cavities. • DISCONNECT power supply cord from the outlet before servicing. • Replace all panels and parts before operating.
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COMPONENT ACCESS f) Pull out the Lower latch from the bar. Unhook Actuating 5. To remove the upper door switch: a) If not already done, raise the cooktop (see page 3-4 for the procedure). b) Remove the Side panels. (see page 3-22 for the procedure). c) Remove the lower door switch from the range.
COMPONENT ACCESS REMOvING THE BROIL ELEMENT 4. Unplug 2 terminals at each point WARNING 2 Terminals • 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 shock.
COMPONENT ACCESS REMOvING THE EXPOSED BAKE ELEMENT (For the Upper oven only) 5. To remove the upper bake element: WARNING a) Remove the 2 screws from the rear bracket. • DISCONNECT power supply cord 2 Screws from the outlet before servicing. •...
COMPONENT ACCESS REMOvING THE CONvECTION ELEMENT, FAN BLADE AND FAN MOTOR (For the Lower oven only) 1. Disconnect power and remove oven racks. 8. To remove Fan blade, remove nut by screwing 2. Pull the range out of its mounting location so that clockwise.
COMPONENT ACCESS REMOvING THE OvEN LIGHT & SOCKET ASSEMBLY (For both the Upper & Lower oven) WARNING CAUTION • DISCONNECT power supply cord • Be careful not to scratch or chip from the outlet before servicing. the oven liner paint when you •...
COMPONENT ACCESS REMOvING THE LATCH DRIvE ASSEMBLY (For both the Upper & Lower oven) 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.
COMPONENT ACCESS REMOVING THE OVEN TEMPERATURE SENSORS (For both the Upper & Lower oven temperature sensor) 5. To remove an oven temperature sensor, WARNING disconnect the connector from the main harness and remove the mounting screw in oven cavity. • DISCONNECT power supply cord Main Oven Sensor from the outlet before servicing.
COMPONENT ACCESS REMOVING & REPLACING THE LIFT-OFF OVEN DOOR (For the Upper door) To replace the door: CAUTION 1. Be sure both hinges are in a 30 degree position. • Be careful when removing and 2. Slide the door back onto the hinges until you lifting the door.
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COMPONENT ACCESS REMOVING & REPLACING THE LIFT-OFF OVEN DOOR (For the Lower door) To replace the door: CAUTION 1. Firmly grasp both sides of the door at the top. • Be careful when removing and 2. With the door at the same angle as the removal lifting the door.
COMPONENT ACCESS REMOVING THE UPPER OVEN DOOR HANDLE & GLASS (For the Upper door) 6. To remove the door handle WARNING a) Remove the 2 air guide screws. • DISCONNECT power supply cord from the outlet before servicing. • Replace all panels and parts before operating.
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COMPONENT ACCESS 7. To remove a hinge receptacle assembly and glass a) Remove the 4 top liner screws (See step 3 on page 3-16) b) Place the door liner assembly on a padded work surface with the hinge receptacles over the edge.
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1. Insert one pane of glass in inner cover. 1. Cover the inner cover with the door frame. (Glass position : Surface printed with “단면LG” should be placed on bottom.) 2. Pull up the bottom of the hinge receptacle to align the hole with the hole in the frame, then insert and tighten the bottom screw.
COMPONENT ACCESS REMOVING THE OVEN DOOR HANDLE & GLASS (For the Lower door) 6. To remove the door handle & door decor WARNING a) Remove the 2 door handle screws and lift the door handle off door decor and slide up the •...
COMPONENT ACCESS REASSEMBLING THE LOWER DOOR GLASS & HINGE HANGER (For the Lower Door) RESSEMBLY METHOD OF INNER DOOR RESSEMBLY METHOD OF HINGE HANGER : GLASS : 1. Cover the inner cover with door frame. 1. See steps 1-2 on page 3-18) 2.
COMPONENT ACCESS REMOVING THE OVEN DOOR GASKET (For the Upper & Lower door gaskets) 3. Pull the ends of the gasket out of the liner holes. WARNING • DISCONNECT power supply cord Liner Hole from the outlet before servicing. • Replace all panels and parts before operating.
COMPONENT ACCESS REMOVING A SIDE PANEL 7. Remove the 4 screws from the left or right side WARNING panel. • 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 shock.
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.
Components Test procedures Results Door locking Motor 1. Refer to page 3-12 for the servicing procedure Normal: Approximately 2.6 kΩ ± 10% 2. Measure the resistance If not replace (Multiple meter scale: R x 1000) Abnormal: Infinite(open) below 5Ω (shorted) Micro Switch ON position (Unlock position) OFF position (Lock position)
Components Test procedures Results Door switch 1. Refer to page 3-5 for the servicing procedure Door open Door closed 2. Measure the resistance after cooling down (Multiple meter scale: R x 1) Continuity Infinite Oven lamp 1. Measure the resistance after cooling down Normal: Below 5 Ω.
Components Test procedures Results Broil heater 1. Remove wire leads Normal : Approximately 14.7 Ω 2. Measure resistance after cooling down Abnomal : Infinite(opened) NOTE: Ω Value was tested at room temperature (77˚F/25˚C) Be careful the element is sensitive to temperature. Lower oven 1.
Components Test procedures Results Single surface units: 1. Refer to page 3-4 for the servicing procedure Left Rear(LR) 2. Set the Multiple meter scale to the R x 1 Right Rear(RR) 3. Disconnect wires from cook-top elements Element 4. Touch the ohmmeter test leads to the element terminal and 1A.
Components Test procedures Results Dual surface unit: 1. Refer to page 3-4 for the servicing procedure Left Front(LF) 2. Set the Multiple meter scale to the R x1 Right Front (RF) 3. Disconnect wires from cook-top elements Element 4. Touch the ohmmeter test leads to the (4 & 2A) and (3 &...
Components Test procedures Results Center Rear(CR) 1. Refer to page 3-4 for the servicing procedure Element 2. Set the Multiple meter scale to the R x 1 : Warming Zone 3. Disconnect wires from CR elements (Plane Heater) 4. Touch the ohmmeter test leads to the between element terminal.
SERVICE TEST MODE SEQUENCE OF SVC TEST MODE To enter the test mode, follow these steps: (1) press the Clear button (2) press the upper BAKE and BROIL buttons at the same time (3) press the upper BAKE and BROIL buttons at the same time again. Model Option Software version (4) press the NUM 0 button...
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SERVICE TEST MODE ●SW Version ●Active Load Icon Current inspecting Relay’s information is displayed (6) Whenever you input the START button, the relay operation sequence should be as seen below. ※ Relay Operation Sequence RY 4 RY 3 RY 5 RY 6 RY 7 RY 10 RY 9...
SERVICE TEST MODE BASIC CHECK SUMMARY Symptom : Oven hot(F6, F16) -. Check: All heater relays are open/shorted Symptom : no heating(F9, F19) Symptom : Oven lamp not -. Check : All heater relays and DLB operating relay are open -.
TROUBLESHOOTING 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.
TROUBLESHOOTING FAILURE CODE SUMMARY Code Description explanation Check point F1 (Upper) 1.Wiring Sensor open Oven Thermistor is open F4 (Lower) 2.Oven Sensor F2 (Upper) Sensor short 1.Wiring Oven Thermistor is shorted. F5 (Lower) 2.Oven Sensor 1. If ‘25 key short’ occurred 3 times in 90 seconds.
TROUBLESHOOTING CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Power Failure 1.Check Electrical Wiring (Dead) 2.Check the Main PCB Input Voltage with CN1 2.No Display CN01 Thermostat CN01 Main PCB...
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TROUBLESHOOTING Power Failed (Dead), No display? Plug in the unit Check the AC input of Main Reconnect. If PCB. defective harness, Check the button beep. - Main PCB CN01 replace or fix Replace the Touch the Clear button, (Pin 1 and 3) Main PCB Can hear the beep sound? 120V AC?
TROUBLESHOOTING Oven does NOT heat, F9, F19 Is the connection of heater Replace the Unplug the unit normal? Failed heater Reconnect. Measure the resistance Is the Connector disconnected If defective harness, of each heater. or loose? Replace or fix (The resistance is shown (1) Between Main PCB and below) Relay PCB (CN51)
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TROUBLESHOOTING Range Of resistance Unplug the unit Resistance[Ω] Heater Approximately Replace the Is the resistance of defective Upper Broil 14.7 thermistor normal? Thermistor Upper Bake Check: Conv. Heater Pins 4 and 5 of CN60 and pins 5 and 6 of Lower Broil 14.7 CN61 in main PCB...
TROUBLESHOOTING Symptom Check Point 1. Door Lock System 1. Check the Electrical wiring Failure 2. Check the Motor’s Resistance 2. F10, F20 3. Check the Relay PCB (Door Lock Relay) CN61 CN60 CN60 CN61 CN61...
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TROUBLESHOOTING Symptom Check Point 1. Door Lock System 1. Check the Electrical wiring Failure 2. Check the Motor’s Resistance 2. F10, F20 3. Check the Relay PCB (Door Lock Relay) CN60 CN61 7-10...
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TROUBLESHOOTING Door Lock System Failure,F10 or F20 ? Plug in the unit Unplug the unit Note : Is the Connector disconnected Reconnect. Just after self-clean start, the door lock motor or loose? If defective harness, starts to rotate. Check the following: replace or fix During this time if the door lock switch does (1) Between Main PCB and...
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TROUBLESHOOTING Is the door lock switch (micro Replace the micro switch) normal? switch measure the resistance of door lock switch normally open type Abnormal Normal Is the resistance of the lock Replace the lock motor normal ? motor measure the resistance of lock motor Normal : approximately 2.6kΩ...
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TROUBLESHOOTING Symptom Check Point 1. Sensing Fail 1.Check the Electric Wiring 2. F1, F4 2.Check the Test Mode 3. F2, F5 3.Check the Sensor’s Resistance CN61 CN60 CN60 CN61 7-13...
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TROUBLESHOOTING Sensing Fail, F1 (F4), F2 (F5)? Is the resistance of Replace the thermistor normal? defective Thermistor Check: Unplug the unit Pins 4 and 5 of CN60 and pins 5 and 6 of Reconnect or adjust CN61 in main PCB Is the Connector disconnected the connection Normal- approximately 1.09kΩ...
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TROUBLESHOOTING Is the value of thermistor Go to No 1 normal? (Refer below) Check with the test mode To enter the test mode, follow these steps: (1) press the CLEAR button (2) press the upper BAKE and BROIL buttons at the same time (3) press the upper “BAKE”, ”BROIL”...
TROUBLESHOOTING Symptom Check Point 1. Oven hot 1.Check the Resistance of the Relay. 2. F6, F16 2.Check the Sensor’s Resistance Ⓐ Ⓓ Ⓔ Ⓑ Bake Heater (Upper) Ⓒ Broil Heater (Upper) Ⓖ Ⓘ Ⓙ Ⓕ RY11 RY13 Conv. Heater (Lower) Ⓗ...
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TROUBLESHOOTING Symptom Check Point 1. Oven hot 1.Check the Resistance of the Relay. 2. F6, F16 2.Check the Sensor’s Resistance CN61 CN60 CN60 CN61 7-17...
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TROUBLESHOOTING Oven hot, F6, F16? Is the Heater relay normal? Replace the Relay PCB Measure the resistance of heater relay and L. Unplug the unit Normal: infinite Abnormal : shorted Replace the Is the resistance of defective thermistor normal? Thermistor Check: Pins 4 and 5 of CN60 and pins Upper Bake...
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TROUBLESHOOTING Is the DLB relay normal? Is the value of thermistor Replace the Relay Replace the Main Measure the resistance normal? (Refer below) Check with the test mode Normal: infinite To enter the test mode, follow Abnormal : shorted these steps: (1) press the CLEAR button (2) press the upper BAKE and BROIL buttons at the same time...
TROUBLESHOOTING Symptom Check Point 1. Key not working 1. Check the Door Locking System. 2. F3 Error 2. Check the Electric Wiring. CN53 7-20...
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TROUBLESHOOTING F3 error (Button short error) Plug in the unit Or button does not input Replace the Control panel. (With Glass Touch PCB) Unplug the unit And then check button operation Reconnect using key test mode or adjust the Check the connecting states connection between Touch PCB and (1) press the CLEAR button...
TROUBLESHOOTING KEY OPERATION TEST 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 VFD 2.
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 ELECTRIC SHOCK. WIRE COLORS SYMBOL COLOR WHITE BLACK YELLOW...
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. UPPER BAKE/WARM Upper BROIL/EASY CLEAN...
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