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삼 흥 정 판 Internal Use Only 30” Slide-in Gas Range SERVICE MANUAL MODEL: LSSG3016ST CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. June, 2015 P/NO : MFL37118334 Printed in Korea...
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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, 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 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.
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GENERAL IMPOR ANT SAFETY INSTRUCTIONS IMPOR ANT SAFETY INSTRUCTIONS • Be sure your appliance is properly installed and grounded by WARNING a qualified technician. • Do not repair or replace any part of the appliance unless • DO NOT store items of interest to specifically recommended in the manual.
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GENERAL IMPOR ANT SAFETY INSTRUCTIONS IMPOR ANT SAFETY INSTRUCTIONS SURFACE COOKING UNITS SELF-CLEAN OVENS • If the top burner flame goes out,gas is still flowing to the • Do Not Clean Door Gasket – The door gasket is essential burner until the knob is turned to the “OFF” position.Do not for a good seal.
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. Model & Serial Number Location Tech Sheet Location (On Low Rear Cover)
GENERAL SPECIFICA TIONS SPECIFICA TIONS Model Number LSSG3016ST Category Single Convection Overall Width Installation type Slide-in Color availability Control Oven Glass Touch Cooktop Knob Display Electronic clock & timer Control lock capability Audible preheat signal Setting (6 categories) Special function 1.
USING YOUR RANGE GENERAL INFORMA TION GENERAL INFORMA TION Rating Label Convection Bake / Roast Mode Convection bake should be used for cooking Model numbers are recorded on the rating label. casseroles and roasting meats. Oven should be Rating label is located on the left corner of drawer preheated for best results when using convection front plate.
USING YOUR RANGE CONTROL P ANEL FEA TURES CONTROL P ANEL FEA TURES A. LEFT FRONT CONTROL KNOB: Use to control F. OVEN MODE KNOB: Turn the knob to select oven Left Front Burner operating mode. B. LEFT REAR CONTROL KNOB : Use to control G.
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ANEL FEA TURES CONTROL P ANEL FEA TURES Model: LSSG3016ST 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.
USING YOUR RANGE 1. TO TURN ON THE SURFACE BURNER 3. TO TURN ON/OFF THE OVEN LIGHT 1. Be sure all the surface burners are placed in The oven light automatically turns ON when the their respective positions. door is opened. The oven light may also be 2.
USING YOUR RANGE 3) PREHEATING ALARM LIGHT ON/OFF 10. CONVECTION ROAST 1. Set the oven mode knob to the Off position. CONV. Desired START 2. Press and hold Start Time for three ROAST Temp. seconds. 11. EASY CLEAN Then press Start Time repeatedly until Pre appears in the display.
- 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 with your range. • Do not put food or foil directly on the surface or base of the warming drawer.
COMPONENT ACCESS 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 Lock Motor and Burner Body Micro Switch Oven light Pipe Igniter (broil) Spark module Broil burner Oven sensor...
COMPONENT ACCESS REMOVING THE BACK COVER REMOVING THE BACK COVER 4. Remove the remaining 12 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.
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COMPONENT ACCESS REMOVING THE OVEN RELA Y PCB, POWER PCB, REMOVING THE OVEN RELA Y PCB, POWER PCB, POWER RELA POWER RELA 4. To remove the Oven Relay PCB, Disconnect 4ea WARNING connectors. • DISCONNECT power supply cord from the outlet before servicing. •...
COMPONENT ACCESS REMOVING THE CONTROLLER REMOVING THE CONTROLLER 6. Pull the controller from the range WARNING • DISCONNECT power supply cord from the outlet before servicing. • Replace all panels and parts before operating. • RECONNECT all grounding devices. Pull - Failure to do so can result in severe personal injury, death or electrical shock.
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. •...
COMPONENT ACCESS REMOVING THE COOKT OP PLA REMOVING THE COOKT OP PLA 5. Remove the vent bracket 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.
COMPONENT ACCESS ASSMBL Y THE COOLING F ASSMBL Y THE COOLING F WARNING • DISCONNECT power supply cord from the outlet before servicing. SPARK MODULE • 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.
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COMPONENT ACCESS REMOVING THE COOKT OP P REMOVING THE COOKT OP P 3. To remove the valve: WARNING a) Remove the manifold panel (See the step 3 on page 3-5). • DISCONNECT power supply cord b) Remove the fitting that you need to remove. from the outlet before servicing.
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COMPONENT ACCESS 4. To remove the ignition switch: a) Remove the manifold panel (See the step 3 on page 3-5). b) Pry on the 2 release tabs and slide the switch off the valve stem. c) Remove the 2 connectors and remove the ignition switch.
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COMPONENT ACCESS REMOVING THE DOOR LA TCH & DOOR SWITCH REMOVING THE DOOR LA TCH & DOOR SWITCH b) Remove the door latch. WARNING 5. To remove the door switch: • DISCONNECT power supply cord a) Remove the door switch from the range. To do this, squeeze tabs and use a ratchet from the outlet before servicing.
COMPONENT ACCESS REMOVING THE BROIL BURNER ASSEMBL REMOVING THE BROIL BURNER ASSEMBL c) Remove the igniter connector in the cavity WARNING (To get the connector, remove 1 screw of wire supporter and pull the wire toward the cavity.). • DISCONNECT power supply cord from the outlet before servicing.
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COMPONENT ACCESS REMOVING THE CONVECTION F AN BLADE AND F AN MOT REMOVING THE CONVECTION F AN BLADE AND F AN MOT 5. To remove the fan blade : 1. Turn off the electrical supply and gas supply going to the range and remove the oven racks. - Remove the nut by screwing clockwise.
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 •...
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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.
COMPONENT ACCESS REMOVING THE OVEN TEMPERA TURE SENSORS REMOVING THE OVEN TEMPERA TURE SENSORS WARNING • DISCONNECT power supply cord from the outlet before servicing. • Replace all panels and parts before operating. • RECONNECT all grounding devices. Main oven sensor - Failure to do so can result in severe personal connector injury, death or electrical shock.
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COMPONENT ACCESS REMOVING & REPLACING THE LIT -OFF OVEN DOOR REMOVING & REPLACING THE LIT -OFF OVEN DOOR AND DRA AND DRA Replacing the Door CAUTION 1. Firmly grasp • Be careful when removing and both sides of the lifting the door. door at the top.
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COMPONENT ACCESS REMOVING & REPLACING THE LIT -OFF OVEN DOOR REMOVING & REPLACING THE LIT -OFF OVEN DOOR AND DRA AND DRA Replacing the Drawer CAUTION 1. Pull the bearing glides to the front of the chassis • Disconnect the electrical power to glide.
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. •...
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COMPONENT ACCESS 7. To remove a hinge hanger assembly: a) Follow the step 3~4 on page 3-16. b) Place the frame assembly on a padded work surface. c) Remove 4screws from door frame middle. Outer glass 4 Screws d) d) Lift the insulation cover out of door liner. e) Lift the inner oven door glass and bracket assembly out of door liner.
COMPONENT ACCESS REMOVING THE OVEN DOOR GASKET REMOVING THE OVEN DOOR GASKET c) Pull the ends of the gasket out of the liner WARNING holes. • DISCONNECT power supply cord Liner Hole from the outlet before servicing. • Replace all panels and parts before operating.
COMPONENT ACCESS REMOVING A SIDE P ANEL REMOVING A SIDE P ANEL 7. 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.
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COMPONENT ACCESS REMOVE THE OVEN V VE (SAFETY V REMOVE THE OVEN V VE (SAFETY V & GAS PRESSURE REGULA & GAS PRESSURE REGULA 5. To remove the gas regulator: WARNING a) Remove the 2 fittings and a gas supplier fitting.
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.
COMPONENT TEST Components Test procedures Results Normal: Approximately Door locking Motor 1. Refer to page 3-13 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...
COMPONENT TEST Components Test procedures Results Door switch 1. Refer to page 3-8 for the servicing procedure Door open Door closed 2. Measure the resistance after cooling down (Multiple meter scale: R x 1) Continuity Infinite Normal: Approximately 1. Measure the resistance after cooling down Oven lamp 5 Ω...
COMPONENT TEST Components Test procedures Results Normal: Approximately 1. Refer to page 3-21 for servicing procedure. Oven (safety) valve 1 ~ 3 Ω 2. Measure the resistance after cooling down. If not replace (Multiple meter scale : R x 1) Upside Downside approximately...
BCONVERSION KITS BURNER OUTPUT RATINGS; BTU/HR LP(PROPANE) GAS LP(Propane) Gas. 10”W.C.P CONVERSION INSTRUCTIONS MODEL BTU RATE ORIFICE CODE UPSG3014ST / LSSG3016ST / CONVERTING THE SEALED BURNER BURNER LSG4513ST / LSG5513ST 10,000 MODELGAS RANGE FOR USE ON LP 9,100 (PROPANE) GAS.
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CONVERSION TO LP GAS 3. CONVERT YOUR REGULATOR SEALED BURNER 1) Unscrew the hex-nut cap by using an adjustable wrench. 30” GAS RANGE 2) Separate plastic cap and hex-nut cap by turning the plastic cap to 90°. 3) Assemble plastic cap on the opposite side. GETTING STARTED 4) Screw the hex-nut cap back onto the regulator.
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CONVERSION TO LP GAS 1) Remove grates, burner caps and burner heads. 6. CONVERT THE OVEN BURNER ORIFICES OVEN REAR BURNER(BAKE) 2) Remove the brass orifice spud in the chimney of each burner using a 13/32” or 10 mm nut driver. VENT TRIM REAR COVER 3) Install the LP orifice spuds into their correct...
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CONVERSION TO LP GAS 7. Turn on the electricity and gas supply to 10. ADJUST THE SURFACE BURNER LOW continue with flame adjustment. FLAME(SIMMER) SETTING. 1) Light all surface burners. 8. ADJUST THE AIR SHUTTER 2) Turn the knob on the burner being adjusted to gas, loosen the Phillips head screw and rotate the shutter fully open.
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.
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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.
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SVC TEST MODE 7-2 Basic Check Summary Symptom : no heating(F9) -. Check : All heater relays and DLB relay are open Symptom : Oven lamp not operating Symptom : Oven hot(F6) -. Check the Lamp coil’s resistance -. Check: All heater relays are open/shorted Symptom : Conv.
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.
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.
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 CN01 CN03 CN02 Main PCB CN03 Pin No. Voltage Vf(4.3V) -33V CN02 Thermostat CN01 SMPS PCB...
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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. Touch the Clear button, 120V AC? Replace the Can hear the beep...
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CHECKING FLOW CHART BY FAILURE Check the connecting states Replace the 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...
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CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. No heating 1.Check Electrical Wiring 2. F9 2.Check Igniter’s Resistance. 3.Check the Sensor. CN31...
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CHECKING FLOW CHART BY FAILURE Oven does NOT heat, F9? Replace the Check the resistance of each failed heater Unplug the unit igniter. Normal? (Measure the resistance after cooling down.The resistance Reconnect. is shown below) Is the Connector If defective disconnected or loose? harness, (1) Electric wiring of Relay...
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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 Norton Igniter 45~400 Check: SIC Igniter 50~500 Pins 4 and 5 of CN31 in main PCB Normal- approximately 1.09kΩ...
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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...
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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)
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 Is the Connector disconnected defective starts to rotate. harness, or loose? During this time if the door lock switch does replace or fix Check the following : NOT operate properly after rotating twice,...
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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 AbnormalNormal...
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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...
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 Sensor...
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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.
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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 Warm Drawer Heater RY10 RY13 Broil Broil Safety valve Inner RY12 Conv. Heater Conv. Heater Igniter Safety valve RY11 9-15...
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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...
CHECKING FLOW CHART BY FAILURE Oven hot, F6? Is the heater relay normal? Replace the 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:...
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CHECKING FLOW CHART BY FAILURE Plug in the unit Is the DLB relay normal? Replace the Replace the relay PCB Is the value of thermistor Measure the resistance normal? (Refer below) Main PCB Check with the test mode Normal : infinite Abnormal : shorted To enter the test mode, follow these steps: 1.
CHECKING FLOW CHART BY FAILURE Symptom Check Point 1. Convection Fan not 1.Check the Resistance of the Relay. working 2.Check the Motor’s Resistance 2. F7 CN42 CN53 9-19...
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CHECKING FLOW CHART BY FAILURE Convection fan not work, F7? Replace the Is the fan motor failed heater Unplug the unit relay normal? Measure the resistance of fan motor relay and Live Check the resistance of each Replace the Normal: infinite fan motor.
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CHECKING FLOW CHART BY FAILURE Replace the Is the Connector disconnected Main PCB or loose? (Check all connectors and harnesses that are associated with the convection fan.) Reconnect. If defective harness, replace or fix. If the same phenomenon occurs even though after fixed connection, you should replace the Main 9-21...
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 9-22...
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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 Check the connecting states o enter the test mode, follow these steps: or adjust the...
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.
#EV# EXPLODED VIEW INTRODUCTION MODEL: Customer Model Product Code SVC Model COOKTOP PARTS CONTROLLER PARTS DOOR PARTS 9504 9506 8511 W229 DRAWER PARTS CAVITY PARTS...