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LG LCE30845 Service Manual

LG LCE30845 - 30in Induction Cooktop Manual

UPC - 048231316033

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LG LCE30845 | Service Manual - Page 1
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. P/NO : MFL41578001 September, 2007 Printed in Korea
LG LCE30845 | Service Manual - Page 2
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
LG LCE30845 | Service Manual - Page 3
National Electrical Code ANSI/NFPA No. 70, latest edition in the United States, and all local code requirements. Install only per installation instructions. • Do not attempt to repair or replace any part of your cooktop unless it is specifically recommended in this manual. All other service should
LG LCE30845 | Service Manual - Page 4
induction unit COOKTOP, never use aluminum foil, products wrapped in aluminum foil, or deep-frozen food in aluminum cookware. • If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard. • The installation
LG LCE30845 | Service Manual - Page 5
to operate without a pan present. • Do not place any object on or near the control keypad area in order to prevent accidental activation of the cooktop controls. LGE Internal Use Only -5- Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 6
liners: Do not use aluminum foil to line any part of the cooktop. Only use aluminum foil as recommended after the cooking cooktop in accordance with the maintenance and cleaning instructions in this manual. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
LG LCE30845 | Service Manual - Page 7
TO THE APPLIANCE • Prior to using your cooktop for the first time, apply the recommended cooktop cleaning creme to the ceramic surface. Buff with . SAVE THESE INSTRUCTIONS LGE Internal Use Only -7- Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 8
1-7 CONTENTS 8 SPECIFICATIONS 9 INSTALLATION INSTRUCTIONS 10-16 INDUCTION 17-19 CLEANING AND CARE 20 DESCRIPTION OF THE FEATURE 21-22 THE KEY FEATURES OF HOB APPLIANCE 22 OPERATING INSTRUCTIONS 23-28 ELECTRIC CIRCUIT DRAWING 29 DISASSEMBLY THE COOKTOP 30-42 TROUBLE SHOOTING 43-45
LG LCE30845 | Service Manual - Page 9
SPECIFICATIONS ITEM DESCRIPTION MODEL LCE30845 Power Requirement 240/208 VAC, 60 Hz. Max power 7.4 kW/6.8 kW INDUCTION LEFT FRONT 1800W (2400W Boost) RIGHT FRONT Internal Use Only -9- Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 10
governing codes and ordinances. • Only certain cooktop models may be installed over certain built-in electric oven models. • Be sure to leave these instructions with the consumer. NOTE TO CONSUMER: Keep this User's Guide and Installation Instructions for future reference. NOTE: This appliance must
LG LCE30845 | Service Manual - Page 11
2 (5 cm) space below the armored cable opening to clear the electric cable and allow space for installation of the junction box on the wall at the back of the cooktop. LGE Internal Use Only - 11 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 12
aluminum, or 0.020" (0.5 mm) copper. Min. from edge of cooktop to nearest combustible wall (either side of unit). Approximate location of junction box. Empty space is needed underneath the cooktop for installation purposes. Model H L 30" 71/2" (191mm) 11/2" (38mm) CAUTION: To eliminate the
LG LCE30845 | Service Manual - Page 13
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
LG LCE30845 | Service Manual - Page 14
INSTALLATION INSTRUCTIONS Electrical ground not ground the cooktop wires through the neutral (white) wire if cooktop is used in a new branch circuit installation (1996 NEC), © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 14 - LGE Internal
LG LCE30845 | Service Manual - Page 15
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
LG LCE30845 | Service Manual - Page 16
Electrical Code ANSI/NFPA No. 70, latest edition. 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. Refer to the Operating Instructions in this guide for details. MODEL
LG LCE30845 | Service Manual - Page 17
pans, look for cookware specifically labeled by the manufacturer for use with induction cooktops. POTS AND PANS • In induction cooktop, you can find out with a few simple tests: LGE Internal Use Only - 17 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
LG LCE30845 | Service Manual - Page 18
induction cooking. SELECTING COOKWARE (continued) AVOIDING SCRATCHES It is recommended to always use heavier gauge stainless steel cookware on your induction cooktop the cooktop. marring that can affect the ceramic cooktop. (This type of damage and cookware use more electricity. • Whenever possible,
LG LCE30845 | Service Manual - Page 19
Minimum pan size = Minimum pan size = • There are 4 Cooking Zones on the induction 71⁄4 (180 mm) 5 (125 mm) 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
LG LCE30845 | Service Manual - Page 20
COOKTOP General cleaning for induction a ceramic glass cleaner as described in GENERAL CLEANING. PROBLEM SOILS Remove sugar, melted plastic, aluminum foil, or other cooktop. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 20 -
LG LCE30845 | Service Manual - Page 21
PARTS AND FEATURES OF YOUR COOKTOP Throughout this manual, features and appearance may vary from your model. 2400W (Normal) 3300W (Boost) 1800W (Normal) 2400W (Boost) 1400W (Normal) 1800W (Boost) Electronic touch controls Ceramic Cooktop: LG's new induction cooktop features a ceramic cooktop
LG LCE30845 | Service Manual - Page 22
setting. POWER: Press the POWER pad to turn the entire cooktop ON and OFF. When it is ON, the cooktop is in standby mode until a Cooking Zone is activated. cooled down. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 22 - LGE Internal Use Only
LG LCE30845 | Service Manual - Page 23
cleaner or ceramic cooktop cleaner according to the Care and Cleaning instructions in this guide. This will the flat part of your fingertip. FIRST OPERATION The first time that power is supplied to the cooktop, will flash LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 24
OPERATING INSTRUCTIONS SETTING THE CONTROLS SETTING THE POWER LEVEL The power level for indicator is shown. Although the cooktop is OFF, the will stay lit until the cooktop has cooled down. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 24 - LGE
LG LCE30845 | Service Manual - Page 25
OPERATING INSTRUCTIONS SETTING THE CONTROLS ( and part of the induction cooking process. Please note that these noises are more noticeable while cooking with power boost. WARM The cooktop features 25 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 26
OPERATING INSTRUCTIONS POWER LEVEL GUIDE Setting 9 or Boost 7-9 Function Fast heating Heaving browning, deep fat frying 6-7 Roasting, frying type of food and pan. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 26 - LGE Internal Use Only
LG LCE30845 | Service Manual - Page 27
OPERATING INSTRUCTIONS USING THE BRIDGE NOTE: The timer function is a minute timer only. It does NOT turn the cooktop ON or OFF. SETTING THE TIMER Touch the or pads under the word TIMER. Only - 27 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 28
off and the cooktop can now be used normally. OTHER FUNCTIONS POWER SHARING Your cooktop is equipped with four induction Cooking Zones within cooktop from overheating, the power level is controlled automatically. Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service
LG LCE30845 | Service Manual - Page 29
ELECTRIC CIRCUIT DRAWING LGE Internal Use Only - 29 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 30
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 . 4. Remove the ceramic glass part. please carefully treat 2 hooks front and
LG LCE30845 | Service Manual - Page 31
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. Only for training and service purposes
LG LCE30845 | Service Manual - Page 32
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. Only for training and service purposes - 32 - LGE Internal Use Only
LG LCE30845 | Service Manual - Page 33
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. Only for training and service purposes
LG LCE30845 | Service Manual - Page 34
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. Only for training and service purposes - 34 - LGE Internal Use Only
LG LCE30845 | Service Manual - Page 35
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. Only for training and service purposes
LG LCE30845 | Service Manual - Page 36
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. Only for training and service purposes - 36 - LGE Internal Use Only
LG LCE30845 | Service Manual - Page 37
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. Only for training and service purposes
LG LCE30845 | Service Manual - Page 38
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. Only for training and service purposes - 38 - LGE Internal Use
LG LCE30845 | Service Manual - Page 39
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. Only for training and service purposes
LG LCE30845 | Service Manual - Page 40
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
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(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. Only for training and service purposes
LG LCE30845 | Service Manual - Page 42
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. Only for training and service purposes - 42 - LGE Internal Use Only
LG LCE30845 | Service Manual - Page 43
* Ceramic Glass Broken TROUBLE SHOOTING The procedure of main functions * Before check the HOB all connection should overvoltage protection circuit turns of the power. LGE Internal Use Only - 43 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
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(Induction heating) is not working * E1 display TROUBLE SHOOTING The procedure of main functions The Suitable pot or pan Normal (refer page 10~11) Abnormal Change IH Module Normal Abnormal Change Key PCB Change pot or pan Normal Abnormal Check the undesired thing is on the Control key part
LG LCE30845 | Service Manual - Page 45
or pan size refer to the cooking zone Check the Installation state especially 5 mm Gap of Fig.5 * Improper working of control Check unwanted thing is on the control part LGE Internal Use Only - 45 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
LG LCE30845 | Service Manual - Page 46
#EV# EXPLODED VIEW (I) MODEL: LCE30845 33463A 35311L 24781A 24781L 35311R 568771 64970A 24781R 36640B WTT028 56411A 63303A 34810Q WTT024 Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes - 46 - LGE Internal Use Only
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WTT021 23040H WTT021 WTT053 WTT053 WTT021 268777 64974A 23040H EALHF1 268775 268776 95306A WTT024 34810Q WTT024 34810D WMP023 LGE Internal Use Only - 47 - Copyright © 2007 LG Electronics. Inc. All right reserved. Only for training and service purposes
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