삼 정 흥 판 Internal Use Only Website: http://biz.lgservice.com Ceramic Glass Induction Cooktop SERVICE MANUAL MODEL: LCE30845 CAUTION BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL.
SAFETY PRECAUTIONS FORWARD This LG Service Manual, “30” Ceramic Glass Induction Cooktop,” provides the technician with information on the operation and service of the Ceramic Glass Induction 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” or “Tech Sheet” provided with the Induction Cooktop. SAFETY PRECAUTIONS • Repairs of the appliance should be carried out by a licensed technician only.
SAFETY PRECAUTIONS IMPORTANT SAFETY NOTICE The California Safe Drinking Water and Toxic Enforcement Act requires the Governor of California to publish a list of substances known to the state to cause birth defects or other reproductive harm and requires businesses to warn customers of potential exposure to such substances.
SAFETY PRECAUTIONS WARNING: Persons with a pacemaker or similar medical device should exercise caution using or standing near an induction unit while it is in operation, as the electromagnetic field may affect the working of the pacemaker or similar medical device. It would be advisable to consult your doctor or the pacemaker or similar medical device manufacturer about your particular situation. CAUTION: DO NOT touch Cooking Zones or areas near these surfaces.
SAFETY PRECAUTIONS CHILD SAFETY WARNING: • This appliance is not intended for use by young children or infirm persons unless they have been adequately supervised by a responsible person to ensure that they can use the appliance safely. • Young children should be supervised to ensure that they do not play with the appliance. • Accessible parts may become hot during use. Young children should be kept away. SAFETY DURING USE • This appliance may only be used for normal cooking and frying in the home.
SAFETY PRECAUTIONS • Utensil handles should be turned inward and should not extend over adjacent cooking zones to reduce the risk of burns, ignition of flammable materials, and spillage due to unintentional contact with the utensil. • Never leave prepared food on the Cooking Zones. Boilovers cause smoking and greasy spillovers that may ignite, or a pan that has boiled dry may melt or become damaged. • Protective liners: Do not use aluminum foil to line any part of the cooktop.
SAFETY PRECAUTIONS • Do not use harsh abrasive cleaners or rough metal scrapers to clean the cooktop glass since they can scratch the surface, which may result in shattering of the glass. COOK MEAT AND POULTRY THOROUGHLY Cook meat and poultry thoroughly—meat to at least an INTERNAL temperature of 160°F and poultry to at least an INTERNAL temperature of 180°F. Cooking to these temperatures usually protects against foodborne illness.
CONTENTS SAFETY PRECAUTIONS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-7 CONTENTS - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 8 SPECIFICATIONS - - - - -
SPECIFICATIONS ITEM MODEL DESCRIPTION LCE30845 Power Requirement 240/208 VAC, 60 Hz. Max power 7.4 kW/6.8 kW INDUCTION LEFT FRONT 1800W (2400W Boost) RIGHT FRONT 1400W (1800W Boost) LEFT REAR 1800W (2400W Boost) RIGHT REAR 2400W (3300W Boost) Cooling Fan motor (12 V DC, 5.
INSTALLATION INSTRUCTIONS INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER. IMPORTANT: SAVE THESE INSTRUCTIONS FOR LOCAL ELECTRICAL INSPECTOR’S USE. READ AND SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE. BEFORE YOU BEGIN Read these instructions completely and carefully. NOTES TO INSTALLER: • Read all instructions contained in these installation instructions before installing the cooktop. • Remove all packing material before connecting the electrical supply to the cooktop.
INSTALLATION INSTRUCTIONS PREPARING THE INSTALLATION LOCATION IMPORTANT INSTALLATION INFORMATION • All electric cooktops run off a single phase, three-wire or four-wire cable, 240/208 volt, 60 hertz, AC-only electrical supply with ground. • Minimum distance between cooktop and overhead cabinetry is 30 (76.2 cm). ** Do not obstruct these areas! 30” Min. (76.2 cm) 4" X 8" (10.2 cm x 20.3 cm) opening to route armored cable if panel is present. All dimensions are stated in inches and millimeters (mm).
INSTALLATION INSTRUCTIONS DIMENSIONS AND CLEARANCES Overhead cabinet should not exceed a maximum depth of 13” (33 cm). Min. recommended distance between rear edge of cutout and nearest combustible surface. 30” (76.2 cm) min. clearance between the top of the cooktop and the bottom of an unprotected wood or metal cabinet. 24” (61 cm) min. when bottom of wood or metal cabinet is protected by not less than 1/8” flame-retardant millboard covered with no less than No. 28 MGS sheet steel, 0.015” (0.
INSTALLATION INSTRUCTIONS ELECTRICAL CONNECTIONS IMPORTANT SAFETY INSTRUCTIONS • Be sure your cooktop is installed and grounded properly by a qualified installer or service technician. • This cooktop must be electrically grounded in accordance with local codes or, in their absence, with the National Electrical Code ANSI/NFPA No. 70, latest edition in the United States.
INSTALLATION INSTRUCTIONS Electrical ground is required on this appliance. This appliance is manufactured with a supply wire and a frame connected green or bare copper grounding wire. NOTE TO ELECTRICIAN: The armored cable leads supplied with the appliance are UL-listed for connection to larger gauge household wiring. The insulation of the leads is rated at temperatures much higher than the temperature rating of household wiring.
INSTALLATION INSTRUCTIONS ELECTRICAL CONNECTIONS (cont.) IF COOKTOP IS USED IN A NEW BRANCH CIRCUIT INSTALLATION (1996 NEC), MOBILE HOME, RECREATIONAL VEHICLE, OR WHERE LOCAL CODES DO NOT PERMIT GROUNDING TO THE NEUTRAL (WHITE) WIRE Observe all governing codes and local 4-WIRE GROUNDED JUNCTION BOX ordinances. Cable from power supply Disconnect the power supply.
INSTALLATION INSTRUCTIONS Install the retainer brackets to the bottom of the cooktop; then snug the bolts against the bottom of the countertop as shown. 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. Preferred installation Alternative installation FINAL CHECK Perform a final operational check of the cooktop, making sure the cooktop powers on properly and that each Cooking Zone operates correctly.
INDUCTION INDUCTION COOKING HOW INDUCTION COOKING WORKS An induction coil is beneath the ceramic glass cooking surface. This generates magnetic fields, which act directly on the base of the pots and pans as compared to methods that first heat the ceramic glass. This means that the base of the pan is immediately heated up, saving time and energy. Since the heat required for cooking is generated directly in the base of the pan, the Cooking Zone itself warms up only slightly.
INDUCTION • Place a pot filled with a little water (1/8 1/4 ) on the Cooking Zone. Set the Cooking Zone to full power (power level 9). CAUTION: The pan base of suitable kitchenware heats up within a few seconds! Water should boil rapidly. • You can also check cookware suitability with a magnet. If the magnet remains fixed to the base of the pan, the pan is suitable for induction cooking.
INDUCTION SELECTING COOKWARE SELECTING THE PROPER PAN SIZE • There are 4 Cooking Zones on the induction cooktop. Each element requires a minimum pan size to be used effectively. The inner ring of each cooking zone is a guide to correctly match the minimum pan size. The bottom of the pan must fully cover the inner ring for proper cooking to occur. • The thicker outer ring at each Cooking Zone is helpful to determine the pan MAXIMUM size.
CLEANING AND CARE CLEANING THE COOKTOP General cleaning for induction ceramic glass cooking surfaces is considerably easier than for cooking surfaces with radiant heating. NOTE: To prevent accidental activation of the controls, it is recommended that you set the CHILD LOCK feature before cleaning. IMPORTANT: • Cleaning agents must not come in contact with the hot ceramic-glass surface. All cleaning agents must be rinsed off thoroughly with clean water.
DESCRIPTION OF FEATURE PARTS AND FEATURES OF YOUR COOKTOP Throughout this manual, features and appearance may vary from your model. 2400W (Normal) 3300W (Boost) 1400W (Normal) 1800W (Boost) 1800W (Normal) 2400W (Boost) Electronic touch controls Ceramic Cooktop: LG’s new induction cooktop features a ceramic cooktop surface that remains cooler than conventional ceramic cooktops, regardless of whether it is ON or OFF.
DESCRIPTION OF FEATURE TOUCH CONTROL FEATURES BRIDGE: Activates the two left Cooking Zones together as a single large Cooking Zone. For bridge operation, touch this pad to activate and adjust the power level with the or pads for either left Cooking Zone. TIMER: When activated, the time remaining is shown in the display. Use the or pads to adjust the timer. CHILD LOCK: Press and hold for 3 seconds to activate and deactivate the child lockout function.
OPERATING INSTRUCTIONS BEFORE USING THE COOKTOP Before using the cooktop for the first time, clean it thoroughly with the included cleaner or ceramic cooktop cleaner according to the Care and Cleaning instructions in this guide. This will remove any help protect the ceramic surface and make future cleanup easier. CAUTION: Never use scrub pads or abrasive cleaners. They can cause permanent damage to the cooktop surface.
OPERATING INSTRUCTIONS SETTING THE CONTROLS SETTING THE POWER LEVEL The power level for the selected Cooking Zone can be set from To adjust the power level: to and (Boost). Touch the or pad for the selected Cooking Zone. Touching will set the power level to . Touching will set the power level to . Touch the or pad of the selected Cooking Zone to increase or decrease the power level. If power level is selected, the Cooking Zone will turn off after 5 seconds.
OPERATING INSTRUCTIONS SETTING THE CONTROLS (cont.) POWER BOOST Boost is the highest power level, designed for quickly heating or boiling larger quantities. Boost will operate for a maximum of 12 minutes. After 12 minutes, it will automatically revert to power level 9. ACTIVATING POWER BOOST Turn on the desired Cooking Zone with the ON/OFF pad for that Cooking Zone. Touch the pad and will be displayed. Touch the pad again and will be displayed.
OPERATING INSTRUCTIONS POWER LEVEL GUIDE Setting Function Used for 9 or Boost Fast heating Bringing liquids to a boil. 7–9 Heaving browning, deep fat frying Browning meats, heating oil for deep-fat frying, sautéing, maintaining a fast boil for large amounts of liquids. 6–7 Roasting, frying Frying meats, chops, pancakes, sausages, eggs. 4–5 Boiling, general cooking Cooking larger quantities, soups and stews, steaming potatoes, cooking meat stock or bouillon.
OPERATING INSTRUCTIONS USING THE BRIDGE COOKING ZONES BRIDGE COOKING ZONES The two left Cooking Zones can be used together as a single Cooking Zone using the Bridge function. This allows you to cook with larger, oblong pans. NOTE: When using the supplied bridge pan, it is important to rub it with oil to prevent burning and sticking. ACTIVATING THE BRIDGE COOKING ZONE Touch the BRIDGE pad. The indicator above the pad will light.
OPERATING INSTRUCTIONS USING CHILD LOCK You can lock the entire cooktop at any time when it is not in use. Locking the cooktop will prevent Cooking Zones from being turned on accidentally. SETTING CHILD LOCK The cooktop must be OFF to set the CHILD LOCK function. If it is not OFF, touch and hold the POWER pad for approximately 2 seconds. The indicator above the POWER pad will turn OFF. Touch and hold the CHILD LOCK pad for 3 seconds.
ELECTRIC CIRCUIT DRAWING LGE Internal Use Only - 29 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Unit must be disconnected from electrical outlet when making repairs, RePlacements, adjustments and continuity cheeks. wait at least one minute, until the high voltage capacitor has fully discharged. Ceramic Glass Part Disassembly 1. Disconnect the power cord from the main source line. 2. Take the hob out from the structure. 3. Unfasten 10 screws from the side section. 4. Remove the ceramic glass part. please carefully treat 2 hooks front and back side.
DISASSEMBLY Burner assembly 1. Disconnect Top temp. sensor. 2. Loose coil assembly. 3. Lift the front side of burner assembly and pull out burner assembly. 4. Both left and right burner assembly can be disassembled with the same way. LGE Internal Use Only - 31 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Controller assembly 1. Disconnect the three of the connects. 2. Loose earth wire of left and right side. Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY IH module assembly 1. Disconnect power harness with long nose. 2. Loose earth wire of left and right side. 3. Loose the four screws fixed to. 4. Lift the front side of burner assembly and take out IH module assembly. 5. Both left and right IH module assembly can be disassembled with the same way. LGE Internal Use Only - 33 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Power harness assembly 1. Loose the two screws in terminal block. 2. Take out the harness assembly. Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Terminal block and power cord assembly 1. Loose the two screws on the bottom plate 2. Loose the earth screw on the bottom plate 3. Loose the ring of conduit bracket with a hand to remove the power cord assembly. LGE Internal Use Only - 35 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Burner assembly (left) 1. Cut out the staple with nipper 2 .After pull over the temp. sensor enough, remove the sensor holder with care 3. Take out the black insulator 4. Loose the three screws around working coil base. Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Burner assembly (right) 1. Cut out the staple with nipper. 2. After pull over the temp. sensor enough, remove the sensor holder with care. 3. Take out the black insulator. 4. Loose the two screws on the center of working coil. 5. Push the working coil base forward and lift the front of that. (this working coil base is hooked onto aluminum plate. LGE Internal Use Only - 37 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Controller assembly (key PCB) 1. Take out the key supporter hooked as pushing and pulling with hands. 2. Take out the key PCB hooked by key supporter. 3. It is separate as key PCB and key supporter. Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY Controller assembly (main PCB) 1. Take out the key supporter hooked as pushing and pulling with hands. 2 .Disconnect the three of connector. 3. Cut out the hook as below. (This is not a problem when reassembling. It can be fixed without that.) 4. Lift the side of PCB under the cut place as below. LGE Internal Use Only - 39 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY IH module assembly (Induction board) - (1) 1. Loose a screw and push and lift the cover. 2. Loose two screws on the side of IH module as below. 3. Pick up with a long nose and get rid of two terminals. Remove two connectors as well. Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY IH module assembly (Induction board) - (2) 4. Loose the four screws that fix the PCB to base. 5. Heatsink Sensor wire is hooked. Unhook the wire before taking out the Induction board. LGE Internal Use Only - 41 - Copyright © 2007 LG Electronics. Inc. All right reserved.
DISASSEMBLY IH module assembly (filter board) 1. Loose the three screws that fix the PCB to base. IH module assembly (fan) 1. Unhook the fan wire. 2. Loose the two screws that fix the fan. Copyright © 2007 LG Electronics. Inc. All right reserved.
TROUBLE SHOOTING The procedure of main functions * Ceramic Glass Broken * Before check the HOB all connection should be checked.
TROUBLE SHOOTING The procedure of main functions * IH(Induction heating) is not working The Suitable pot or pan Normal Change IH Module Normal (refer page 10~11) Abnormal Change Key PCB Abnormal Change pot or pan Normal Abnormal * E1 display Check the undesired thing is on the Control key part Check too long time (more than 9 Seconds) Continually Sensored one key For releasing E1 display, just press on/off key time and then operate the key * F1~FA display Check the connector Change the IH Module
TROUBLE SHOOTING The procedure of main functions * Flashing H It’s normal alarm message for initially Power up or after Power outage For Releasing E1 display, just press On/Off Key one time and then operate the desired Key * Hob does not work properly in Induction * Improper working of control LGE Internal Use Only Check the pot or pan size refer to the cooking zone Check the Installation state especially 5 mm Gap of Fig.
#EV# EXPLODED VIEW (I) MODEL: LCE30845 33463A 35311L 35311R 24781A 24781L 568771 24781R 64970A 36640B 34810Q WTT028 WTT024 63303A 56411A Copyright © 2007 LG Electronics. Inc. All right reserved.
#EV# EXPLODED VIEW (II) WTT024 WTT024 33463A WSZ002 WTT024 WTT024 350122 350121 WSZ002 WSZ002 WSZ002 350123 WSZ002 34930W 330402 330401 WTT021 268774 23550C 23550C 268712 WTP002 268711 268772 WTP002 WTP002 WSZ002 WTT021 WTT021 268773 268771 23040K 23040H WTT021 EALHF1 EALHF1 23040H WSZ002 WTP019 568771 WTP002 WTT021 24970A WSZ002 26871P WSZ002 24980P 268713 268714 WTT021 WTT021 WTT053 WTT053 36640B 268775 64970A WTT021 268777 WNZ026 WTT024 268776 34810Q 63302A 64974A
