LG LSCG306ST Service Manual
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LG LSCG306ST Service Manual

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使
犯
拙
到
Gas Cooktop
SERVICE MANUAL
MODEL: LSCG306ST
CAUTION
BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
P/NO : MFL62725602
LSCG366ST
Internal Use Only
Website: http://biz.lgservice.com
February, 2010
Printed in Korea

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  • Page 1 使 犯 拙 到 Internal Use Only Website: http://biz.lgservice.com Gas Cooktop SERVICE MANUAL MODEL: LSCG306ST LSCG366ST CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. February, 2010 P/NO : MFL62725602 Printed in Korea...

  • Page 2: Table Of Contents

    COMPONENT LOCATIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26-27 Copyright © 2010 LG Electronics. Inc. All right reserved.
  • Page 3 REPLACEMENT PARTS LIST - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 53-56 LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 4: Safety Precautions

    SAFETY PRECAUTIONS FORWARD This LG Service Manual, “30 inch & 36 inch Gas Cooktop,” provides the technician with information on the operation and service of the Gas Cooktop. It is to be used as a training Service Manual. For specific information on the model being serviced, refer to the “Owner’s Manual”...
  • Page 5 WARNING: Never use your appliance for warming or heating a room. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 6 • Take care when plugging in electric appliances near the cooktop. Cords must not come into contact with the hot surface. This could cause damage to the cooktop and cable insulation. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 7 • Ventilating hood: The ventilating hood above your cooking surface should be cleaned frequently, so the grease from cooking vapors does not accumulate on the hood or filter. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 8 • Do not use cookware with any dirt build up on the bottom. CAUTION: Burn Hazard: The burners can remain hot after use. Allow time for the burners to cool before handling them. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only Only for training and service purposes...
  • Page 9 CAUTION: Before disposing of old appliances please make them inoperable so they cannot be a source of danger. READ AND FOLLOW THIS SAFETY INFORMATION CAREFULLY. SAVE THESE INSTRUCTIONS LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 10: Specifications

    ”(550mm) x (without Grates) ”(104mm) ”(104mm) Countertop Cutout Dimensions ”(724mm) x 19 ”(500mm) ”(862mm) x 19 ”(500mm) Shipping Weight 57.54lb(26.1kg) 61.29lb(27.8kg) Copyright © 2008 LG Electronics. Inc. All right reserved. -10- LGE Internal Use Only Only for training and service purposes...

  • Page 11: Installation Instructions

    Damage caused by failure to follow these instructions is not covered by the cooktop warranty. UNPACKING THE COOKTOP • Unpack and visually inspect the cooktop for any damage or missing components. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -11- Only for training and service purposes...

  • Page 12: Dimensions And Clearances

    ” ” ” 30”Cooktop ” 30” 30” ” ” ” ” ” ” ” ” 36”Cooktop ” 36” 36” ” Copyright © 2008 LG Electronics. Inc. All right reserved. -12- LGE Internal Use Only Only for training and service purposes...

  • Page 13: Installing The Cooktop Unit

    NOTE : The retainer brackets MUST be installed to meet local codes or, in their absence, with the National Electrical Code ANSI/NFPA No. 70, latest edition. LGE Internal Use Only -13- Copyright © 2010 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 14: Provide Adequate Gas Supply

    Isolate the cooktop from the gas supply piping system by closing its individual shut-off valve during any pressure testing of the gas supply system at test pressures equal to or less than psig(3.5kPa) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -14-...

  • Page 15: Electrical Connections

    • Seal any openings in the wall behind the cooktop and in the floor of the cabinet when hookups are completed. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -15- Only for training and service purposes...

  • Page 16: Assemble The Surface Burners

    • If burner flames look like A , call for service. B or C is normal burner flames, depending on the type of gas you use. • With LP gas, some yellow tipping on outer cones is normal. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -16-...

  • Page 17: Adjust The Surface Burner Low Flame (Simmer) Setting

    (22) Reposition cook top and secure all screws of cook top. (23) Reposition burner heads, burner caps, grates and knobs. (24) Connect power to appliance. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -17- Only for training and service purposes...

  • Page 18: Operating Instructions

    Hold a lit match to the burner, then push in and turn the control knob to the “LITE” position. Use extreme caution when lighting burners this way. Surface burners in use when an electrical power failure occurs will continue to operate normally. Copyright © 2008 LG Electronics. Inc. All right reserved. -18- LGE Internal Use Only...

  • Page 19: Using The Gas Surface Burners

    • This can be hazardous to your health. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -19- Only for training and service purposes...

  • Page 20: Using The Griddle

    • Do not use metal utensils that can damage the griddle surface. Do not cut foods on the griddle. • Do not place or store items on the griddle. Copyright © 2008 LG Electronics. Inc. All right reserved. -20- LGE Internal Use Only...

  • Page 21: Care And Cleaning

    Do not attempt to disassemble or clean around any burner while another burner is on. An elecctric shock may result, which could cause you to knock over hot cookware. LGE Internal Use Only -21- Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 22: Care And Cleaning Of The Cooktop

    There are one small, two medium, one Lrage burner large and one extra large burner head and cap. head and cap Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -22- Only for training and service purposes...

  • Page 23: Burner Grates

    NOTE : Do not try to lift the cooktop. Lifting the cooktop can cause damage and improper operation of the cooktop. LGE Internal Use Only -23- Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...

  • Page 24: Stainless Steel Surfaces

    NOTE : To prevent mis-operation during cleaning of the control knobs, Surface burner knob Unplug your cooktop. Copyright © 2008 LG Electronics. Inc. All right reserved. -24- LGE Internal Use Only Only for training and service purposes...

  • Page 25: Wiring Diagram

    WARNING: “LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS WIRING, ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION.” VERIFY PROPER OPERATION AFTER SERVICING. LGE Internal Use Only -25- Copyright © 2008 LG Electronics. Inc. All right reserved. Only for training and service purposes...
  • Page 26 Knobs Griddle Burner Cap(outer) Burner Head Burner Burner Cap Cap(inner) Burner Head Burner Body Electrode (Spark Plug) Phillps Head Screw Copyright © 2008 LG Electronics. Inc. All right reserved. -26- LGE Internal Use Only Only for training and service purposes...

  • Page 27: Component Locations

    (Spark Plug) Orifice(Nozzle) Ignition Switch Wire Ring Valve Burner Body LED Lamp Module Phillips Head Screws Burner Body Electrode(Spark Plug) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -27- Only for training and service purposes...

  • Page 28: Component Replacement

    4. Remove all 15 screws from cooktop burner housings. 5. Remove the Stainless Steel cooktop. When replacing this part with new one, progress reversely. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -28- Only for training and service purposes...

  • Page 29: Single Burner Body

    Phillips Head Screw 5. Lift the burner body which would be replaced. When replacing this part with new one, progress reversely LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -29- Only for training and service purposes...

  • Page 30: Double Burner Body

    -in. Nut Phillips Head Screw -in. Nut 5. Lift the burner body. When replacing this part with new one, progress reversely Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -30- Only for training and service purposes...

  • Page 31: Electrode Assembly(Spark Plug)

    3. Unplug the connector by pulling it. 4. Lift the electrode assembly. Connector When replacing this part with new one, progress reversely LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -31- Only for training and service purposes...

  • Page 32: Spark Module(I.g. Trans)

    1. Remove the cooktop plate.(See “Cooktop Plate”.) 2. Disconnect the 7 connectors. 3. Unfasten the 2 screws. When replacing this part with new one, progress reversely. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -32- Only for training and service purposes...

  • Page 33: Led Lamp Module

    3. Unplug the connector. LED Lamp Module Connector 4. Remove the LED lamp module. When replacing this part with new one, progress reversely. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -33- Only for training and service purposes...

  • Page 34: Ignition Switch Assembly

    Connectors to Spark Module(I.G. Trans) Connector to Power Cord 5. Remove the ignition switch assembly. When replacing this part with new one, progress reversely. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -34- Only for training and service purposes...

  • Page 35: Single Burner Valve

    Manifold Buner Valve -in. hex head crew When replacing this part with new one, progress reversely. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -35- Only for training and service purposes...

  • Page 36: Double Burner Valve Assembly

    -in. Nut Driver Manifold Double Buner Valve -in. hex head crew When replacing this part with new one, progress reversely. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -36- Only for training and service purposes...

  • Page 37: Burner Pipe Assembly

    -in. Open-End Wrench -in. Nut Pipe(Tube) 4. Lift the burner pipe assembly. When replacing this part with new one, progress reversely. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -37- Only for training and service purposes...

  • Page 38: Manifold Pipe Assembly

    -in. Open-End Wrench -in. Bolt Manifold Pipe 4. Lift the pipe assembly. When replacing this part with new one, progress reversely. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -38- Only for training and service purposes...

  • Page 39: Manifold Assembly

    Phillips Head Screw Phillips Head Screw 5. Lift the manifold assembly. When replacing this part with new one, progress reversely. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -39- Only for training and service purposes...

  • Page 40: Inlet Pipe Assembly

    4. Lift the inlet pipe assembly Phillips Head Screw Inlet Pipe Assembly When replacing this part with new one, progress reversely. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -40- Only for training and service purposes...

  • Page 41: Center Burner Bracket

    5. Remove the 2 wire holder. 4. Lift the center burner bracket. When replacing this part with new one, progress reversely. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -41- Only for training and service purposes...

  • Page 42: Side Burner Bracket(Left And Right)

    4. Lift the side burner bracket. - For the right burner bracket, remove the wire holder. NOTE : For LSCG306ST, when servicing the this part, assemble this part to be seen ‘30’ mark rightly. For LSCG366ST, when servicing the this part, assemble this part to be seen ‘36’ mark rightly.

  • Page 43: Conversion To Lp Gas

    Return the natural gas orifices to the burner body and reattach the burner body and the instruction sheet to the pressure regulator using the screw removed previously. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -43- Only for training and service purposes...
  • Page 44 9100 9100 9100 9100 5000 5000 5000 5000 9500 9500 12000 12000 INNER INNER 15000 15000 19000 19000 OUTER OUTER Copyright © 2008 LG Electronics. Inc. All right reserved. -44- LGE Internal Use Only Only for training and service purposes...
  • Page 45 • Turn the knob from “HI” to “LOW” quickly. • If the flame goes out, increase the frame size and test again. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -45- Only for training and service purposes...
  • Page 46 LP, remove the LP sticker from the back of the cooktop. To convert to the original gas. Follow conversion process with original orifices to convert the appliance to the original gas. Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -46-...

  • Page 47: Failure Mode Flow Chart

    Replace the Normal? power cord Check the connection of the connectors. Is it prperly Connect the connected? connectors LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -47- Only for training and service purposes...
  • Page 48 Replace the Normal? ignition switch assembly Check the burner parts that are properly in Replace the place. ignitnion module(I.G. Trans) Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -48- Only for training and service purposes...
  • Page 49 ❷ Then check the resistance of 5 switch Check the switch shown as belew. - Normal : 0 Ω (A switch is closed.) LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -49- Only for training and service purposes...
  • Page 50 FAILURE MODE FLOW CHART No Backlite Replace the ignition Normal? switch assembly Replace the LED lamp Copyright © 2008 LG Electronics. Inc. All right reserved. LGE Internal Use Only -50- Only for training and service purposes...

  • Page 51: Trouble Shooting

    • Improper burner assembly. • Make sure the burner parts are installed correctly. See the Care and Cleaning of the Cooktop section. LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved. -51- Only for training and service purposes...

  • Page 52: Exploded View

    #EV# EXPLODED VIEW MODEL: Customer Model Product Code SVC Model G096 G097 G095 G061 G060 G001 G056 G063 G052 G058 G062 G063 G064 G058 G059 G003 G057 G054 G054 G049 G094 G102 G094 G033 G116 G013 G117 G029 G048 G031 *LNG G005 G070 G013...

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