LG LDE3017SB Service Manual Download Page 62

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9-8

CHECKING FLOW CHART BY FAIRURE

Oven does not heat (including F-9, F-19 Error)

Yes

Normal?

END

Replace the error heater

Connect the power

Check the value of thermistor by using the test mode

• To enter the testmode, follow these steps:

1. press the “clear” key
2. press the “LOWER BAKE”, “LOWER BROIL” key at the same time for one second

3. press the “LOWER BAKE”, “LOWER BROIL” key at the same time again.

4. press the NUM “3” key

Normal : The sensor value is from 70°F to 90°F at 25°C.

UPPER SENSOR

LOWER SENSOR

Summary of Contents for LDE3017SB

Page 1: ...e SERVICE MANUAL MODEL LDE3017ST LDE3017SB LDE3017SW CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL Website http biz lgservice com P NO MFL37118315 July 2010 Printed in Korea 삼 흥 정 판 Internal Use Only ...

Page 2: ...our dealer If the power cord is defective it must be replaced by a qualified service agent with a UL listed range cord Electrical leads and cables should not be allowed to touch the oven Rating plate is located on the left side of warming drawer The power supply of the appliance should be turned off when it is being repaired FORWARD LG Electronices assumes no responsibility for any repairs made on...

Page 3: ...Cook Broil Convection Bake Convection Roast Favorites Warm Proof Kids Meal Sabbath mode LockOut Self Clean COMPONENT ACCESS 3 1 3 24 Component Locations 3 1 Removing the Back Control cover and Key membrane Assembly 3 2 Removeing the Control Power Supply and Power Control Board PCB 3 3 Removing the Surface Element and the Ceramic Glass Cooktop 3 4 Removing the Door Lath and Upper Door Switch 3 5 Re...

Page 4: ... RF 4 8 Center Rear CR Element Warming Zone Plane Heater 4 9 COMPOSITION OF CONTROL 5 1 5 4 Oven system PCB 5 1 Cooktop system PCB 5 1 Oven relay PCB 5 2 SMPS PCB 5 2 Cooktop display 5 3 Oven display VFD 5 3 DIAGNOSIS THROUGH SCHEMATIC 6 1 CHECK THE FAILURE CODE F CODE 7 1 SAFETY CAUTION ERROR CODE SUMMARY 8 1 CHECKING FLOW CHART BY FAILURE 9 1 9 25 No display No Power 9 1 9 4 Oven does not heat 9...

Page 5: ...ch heating elements or interior surfaces of oven Heating element may be hot even though they are dark in color Interior surfaces of an oven become hot enough to cause burns During and after use do not touch or let clothing or other flammable materials contact heating elements or interior surfaces of oven until they have had sufficient time to cool Other surfaces of the appliance may become hot eno...

Page 6: ...the anti tip devices Refer to the installation manual for proper anti tip bracket installation WARNING DO NOT touch heating elements or interior surfaces of oven Heating element may be hot even though they are dark in color Interior surfaces of an oven become hot enough to cause burns During and after use do not touch or let clothing or other flammable materials contact heating elements or interio...

Page 7: ... goes on or three long beeps sound oven is malfunctioning in the self clean mode Turn off or disconnect appliance from power supply and have serviced by a qualified technician VENTILATING HOODS Clean Ventilating Hoods Frequently Grease should not be allowed to accumulate on hood or filter When flaming foods under the hood turn the fan on OVEN Use Care When Opening Door Let hot air or steam escape ...

Page 8: ...ial Number label and Tech Sheet locations are shown below Model Serial Number Location MODEL SERIAL NUMBER LABEL MODEL SERIAL NUMBER LABEL AND TECH SHEET LOCA AND TECH SHEET LOCATIONS TIONS Tech Sheet Location On Low Rear Cover ...

Page 9: ...xterior Depth Net weight Lbs kg Rating 30 Freestanding STS Glass touch Glass touch Scroll VFD Yes Yes Yes Setting 7 categories 1 Convection auto conversion On Off 2 Thermostat Adjustment 3 Select Language 4 Preheating alarm light ON OFF 5 Adjust beeper volume 6 Select fahrenheit or celsius temperature 7 Change hour mode on Clock Ceramic glass 5 6 1200W 6 1200W 7 100W 9 6 3000W 1400W 12 9 2700W 170...

Page 10: ...reheating is not required when using broil All foods should be turned at least once except fish which does not need to be turned ConvectionBake RoastMode FortheLowerovenonly Upper element lower element Rear element and fan operate during convection bake Convection bake should be used for cooking casseroles and roasting meats Oven should be preheated for best results when using convection bake Pans...

Page 11: ...n the Oven lights of the upper oven on and off UPPER SELF CLEAN Use to select the Self Clean of the upper oven UPPER TIMER ON OFF Use to set or cancel the timer of the upper oven LOWER OVEN BAKE Use to select the Bake function of the lower oven BROIL Use to select the Broil function of the lower oven CONV BAKE Use to select the Conv bake function of the lower oven CONV ROAST Use to select the Conv...

Page 12: ...E Use to set the length of the cook time Bake Conv Bake Roast only 23 START Use to START all functions in the oven To activate LOCKOUT press and hold for 3 seconds 24 NUMER PADS Use to enter a temperature and all times Single element Left Rear Right Rear Indicator Double element Left Front Right Front Indicator Warming Zone Center Rear CONTROL P CONTROL PANEL FEA ANEL FEATURES TURES A B C ...

Page 13: ... Press SETTING pad 3 times for the upper oven U Aj will appear in the display 2 Press the desired temperature 3 Press START pad To turn on a SINGLE surface unit Left Rear Right Rear 1 Press ON OFF pad for the desired element position 2 Use pad to choose the desired power setting is continuously accessible To turn on a DOUBLE surface unit Left Front Right Front 1 Press ON OFF pad for the desired el...

Page 14: ...ME 1 Press SETTING pad 6 times 2 Press 1 pad for loud level 2 pad for normal level 3 pad for low level 4 pad for mute level 3 Press START pad 6 TEMPERATURE UNIT F or C 1 Press SETTING pad 7 times 2 Press 1 pad for F or 2 pad for C 3 Press START pad 7 HOUR MODE ON CLOCK 12HR or 24HR 1 Press SETTING pad 8 times 2 Press 1 pad for 12 Hr or 2 pad for 24 Hr 3 Press START pad 6 TIMED COOK DELAYED TIMED C...

Page 15: ...F CLEAN Once 3Hours Twice 4Hours 3 times 5Hours Press and hold the START pad 3 seconds In order to activate or deactivate SABBATH MODE Press and hold the START pad 3 seconds In order to activate or deactivate LOCKOUT START TIME Desired start time START START WARM Upper oven WARM PROOF Once WARM Lower oven START WARM PROOF TWICE PROOF START KIDS MEAL Once Frozen pizza Regular crust Twice Frozen piz...

Page 16: ...er Door Latch Assembly Surface Elements SMPS Cooktop PCB Upper Broil Heater Lower Door Latch Assembly Convection Heater Hinge Hanger Hinge Hanger Oven Sensor Oven PCB Display Oven Sensor Oven Light Oven Light Door Locking Motor Micro Switch Door Locking Motor Micro Switch Oven Relay PCB Convection Motor Lower Bake Heater Lower Broil Heater Lower Bake Heater Upper Door Switch Lower Door Switch ...

Page 17: ...ng the KEY Membrane the controller sub assembly should be separated in whole REMOVING THE BACK CONTROL COVER REMOVING THE BACK CONTROL COVER AND KEY MEMBRANE ASSEMBL AND KEY MEMBRANE ASSEMBLY Y WARNING DISCONNET 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...

Page 18: ...b in default mode and check main pcb NOTE Refer to the page 5 1 5 4 for composition of control board 5 To remove the control power supply a Disconnect 1 connector b Remove the 2 screws Cook top Relay PCB Main PCB 1 Connector 2 Screws Oven Relay PCB WARNING DISCONNET power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Fail...

Page 19: ... b Remove the element bracket screw shown above for the element you are servicing d Carefully lift the bottom of the bracket just far enough to remove the element REASSEMBLY NOTE When you reinstall the element make sure that the wires are inserted into the correct tap then reinstall the bracket screw to secure it to the cooktop 3 4 COMPONENT ACCESS REMOVING THE SURF REMOVING THE SURFACE ELEMENTS A...

Page 20: ...g the screws c Remove the upper door switch from the range To do this squeeze tabs and use a ratchet extension or a small socket and tap it out of the hole with a hammer d Disconnect the wires from the terminals 2 Screws Unhook Actuating Rod WARNING DISCONNET power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all grounding devices Failure to ...

Page 21: ... 4 screws to detach 2 hinge suppoters c Remove 2 screws to widen the space between Upper Lower cavities d Tilt the Upper cavity cautiously make sure that the controller does not fall down the floor e Remove 2 screws to replace the lower latch Side Bracket 4 screws WARNING DISCONNET power supply cord from the outlet before servicing Replace all panels and parts before operating RECONNECT all ground...

Page 22: ...oor switch from the range To do this squeeze tabs and use a ratchet extension or a small socket and tap it out of the hole with a hammer c Disconnect the wires from the terminals Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Push Wires Door Switch Unhook Actuating Rod ...

Page 23: ...G DISCONNET 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 CAUTION Be careful when you work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 2 screws 10 screws Ceramic fiber Connectors...

Page 24: ...rass sheet Holder bracket 8 Turn the element assemblly upside down Remove 2 screws to detach the mesh 9 Pull up the broil elements and remove from the assembly 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws 2 screws Mesh ...

Page 25: ...ets b Pull the element forward so that you can access the terminals and disconnect the wires 2 Rear bracket screws 2 Terminals WARNING DISCONNET 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 CAUTION Be careful when you work on the electr...

Page 26: ...2 screws from the rear bracket b Pull the element forward so that you can access the terminals and disconnect the wires 2 Terminals WARNING DISCONNET 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 CAUTION Be careful when you work on the e...

Page 27: ...G THE MOUNTING BRACKET 1 Drive the two screws REMOVING THE HIDDEN BAKE ELEMENT REMOVING THE HIDDEN BAKE ELEMENT For the Lower oven only For the Lower oven only Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points Total 9 points ...

Page 28: ... To remove Fan motor assembly disconnect wire connection and remove the three bracket screws 9 Pull the fan motor assembly forward REMOVING THE CONVECTION ELEMENT REMOVING THE CONVECTION ELEMENT F FAN BLADE AND F AN BLADE AND FAN MOT AN MOTOR OR For the Lower oven only For the Lower oven only Nut Washer Bushing Fan motor Cavity Fan Cover Screws 3ea Conv heater Screws 3ea Fan cover Washer Convectio...

Page 29: ...als Glass cover Bulb Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips Socket Clips So...

Page 30: ...lean and Lock out mode PCB Power control board chip operates the motor 2 The cam moves the door hook connected to latch rod from unlocked position to locked position from locked Position to unlocked position 3 The cam activates the micro switch that causes the motor to stop 4 The locked status remains until the range temperature drops to approximately 500F after end of the self clean or lock out f...

Page 31: ...ctor Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sensor connector Upper Lower oven sens...

Page 32: ...lose the door to 30 degrees you will feel the door stop The hinge lock will contact the oven frame Step 4 On both sides of the door press down on the release buttons on each hinge Step 5 Lift door up until it is clear of the hinge CAUTION Be careful when removing and lifting the door DO NOT lift the door by the handle The door is very heavy 3 17 COMPONENT ACCESS REMOVING REPLACING THE LIFT REMOVIN...

Page 33: ...he bottom edge of the slot Step 4 Push the hinge locks down against the front frame of the oven cavity to the locked position Step 5 Close the oven door LOWER OVEN To remove the door Step 1 Fully open the door Step 2 Pull the hinge locks up toward the door frame to the unlocked position Step 3 Firmly grasp both sides of the door at the top Step 4 Close door to the door removal position which is ap...

Page 34: ... glass for White Black model a Remove the handle and glass trim screws b Lift the door handle off door trim c Slide up the door trim and pull the glass trim forward Handle screws Glass trim screws Handle screws WARNING DISCONNET 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 pers...

Page 35: ...ner screws 4 Top liner screws 4 Top liner screws 4 Top liner screws 4 Top liner screws 4 Top liner screws 4 Top liner screws 4 Top liner screws 4 Top liner screws lnsulation cover lnner Oven Door Glass Bracket lnner Oven Door Glass Bracket lnner Oven Door Glass Bracket lnner Oven Door Glass Bracket lnner Oven Door Glass Bracket lnner Oven Door Glass Bracket lnner Oven Door Glass Bracket lnner Oven...

Page 36: ...ce all panels and parts before operating RECONNECT all grounding devices Failure to do so can result in severe personal injury death or electrical shock CAUTION Be careful when you work on the electric range handling the sheet metal part Sharp edge may be present and you can cut yourself 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner screws 4 top liner scre...

Page 37: ...e hanger screws Hinge hanger screws lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulation cover lnsulat...

Page 38: ...oor gasket Upper door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door gasket Lower door ...

Page 39: ... screws from the rear panel and remove the panel see step 3 4 on page 3 2 5 Raise the cooktop see page 3 4 for the procedure NOTE Position the side of the cooktop so that it does not rest on the side panel that you are removing 6 Remove the two screws from the top rear of the side panel WARNING DISCONNET power supply cord from the outlet before servicing Replace all panels and parts before operati...

Page 40: ...o connectors far enough 3 Resistance checks must be made with power cord unplugged from outlet and with wiring harness or connectors disconnected Before testing any of components perform the following checks WARNING Disconnect power supply cord from the outlet before servicing Replace all panels and parts before operating Reconnect all grounding devices after servicing Failure to do so can result ...

Page 41: ... the resistance after cooling down Multiple meter scale R x 1000 Normal Approximately 1 09 kΩ 10 If not replace Components Test procedures Results Normal Infinite Normal Approximately 2 6 kΩ 10 If not replace Abnormal Infinite open below 5Ω shorted NOTE The Micro switch will be held for 13 seconds during lock or unlock ON position Unlock position OFF position Lock position NOTE Ω Value was tested ...

Page 42: ...ntinuity Infinite 1 Refer to page 3 5 for the servicing procedure 2 Measure the resistance after cooling down Multiple meter scale R x 1 Normal Below 5 Ω If not replace 1 Remove wire leads 2 Measure resistance after cooling down Normal Approximately 50Ω Abnomal Infinite opened NOTE Ω Value was tested at room temperature 77F 25 C Be careful the element is sensitive to temperature ...

Page 43: ...after cooling down Normal Approximately 27 9Ω Abnomal Infinite opened 1 Remove wire leads 2 Measure resistance after cooling down Normal Approximately 22 5Ω Abnomal Infinite opened NOTE Ω Value was tested at room temperature 77F 25 C Be careful the element is sensitive to temperature NOTE Ω Value was tested at room temperature 77F 25 C Be careful the element is sensitive to temperature NOTE Ω Valu...

Page 44: ...ck cover refer to the page 3 2 3 Test the circuit breaker resistance Appliance outlet Appliance outlet circuit breaker Components Test procedures Results Normal Approximately 120V Normal Below 1 Ω If not replace NOTE The circuit breaker for the appliance outlet is rated for 15A That may trip if the appliance plugged into it exceeds 15amps To reset the circuit breaker press the circuit breaker swit...

Page 45: ...s to limiter terminals 1A and 2A The meter should indicate continuity 0Ω 6 Touch the ohmmeter test leads to limiter terminals 1B and 2B With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter should indicate continuity 0Ω Components Test procedures Results Normal Approximately 46 Ω If not replace Normal continuity below 0 5 Ω I...

Page 46: ... ohmmeter test leads to limiter terminals 1B and 2B With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter should indicate continuity 0 Ω Dual surface unit Left Front LF Element Components Test procedures Results Normal Approximately 40 Ω Normal Approximately 35 Ω Normal continuity below 0 5 Ω If not replace Below 150 F open c...

Page 47: ...the ohmmeter test leads to limiter terminals 1B and 2B With the temperature below 150 F the meter should indicate an open circuit infinite With the temperature above 150 F the meter should indicate continuity 0 Ω Dual surface unit Right Front RF Element Components Test procedures Results Normal Approximately 32 Ω Normal Approximately 55 Ω Normal continuity below 0 5 Ω If not replace Below 150 F op...

Page 48: ...erminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal Element terminal E...

Page 49: ... CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN25 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN21 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN26 CN33 CN33 CN33...

Page 50: ...1 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN12 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN1 CN2 CN2 CN2 CN2 CN2 CN2 C...

Page 51: ...Cooktop display Cooktop display P N EBR64624901 Oven display VFD Oven display VFD P N EAJ61309901 COMPOSITION OF CONTROL 5 3 ...

Page 52: ...Open short Symptom No heating F 9 F 19 Check Heater Relays Short Symptom Oven hot F 6 F 16 Check Heater and relay Open short Symptom Cooktop no heating Check Open Normal short Symptom Dead Check Sensor resistance approximately 1 06 kΩ at 65F 1 12 kΩ at 85F Symptom Sensor error or no heating F 1 F 2 F 9 F 19 Check Open short Symptom Dead ...

Page 53: ...y and not displayed F codes can only be viewed by following the below Step 1 press the clear key 2 Press and Hold LOWER BAKE and LOWER BROIL key for 3 seconds If the oven has some failure the oven will show the failure code like FIG 1 It shows the type of F code and times of occurred failure If the oven does not have any failure the oven will display like FIG 2 NOTE After checking the failure code...

Page 54: ...ven Thermistor is short for over 1 min after cook starts during cooking Upper oven temperature is over 650 F continuously during 2 minutes on cooking except self cleaning Upper Temp Probe Thermistor is shorted over 1 minute after cook starts If current upper oven temperature does not exceed 150 F or is lower than the start temperature over 5 minutes after preheating where door is closed EXCEPT PRO...

Page 55: ...9 1 CHECKING FLOW CHART BY FAIRURE Symptom Check Point 1 Power Failure Dead 2 No Display 1 Check Electric Wiring 2 Check the thermostat 3 Check the SMPS PCB ...

Page 56: ...B CN1 pin 1 and 3 Control Dead Select a function Yes Yes Any beeping Sound Normal 120V AC Normal END 2 No Yes Yes No No No No Replace the Oven system PCB EBR64624502 Replace the DISPLAY EAJ61309901 1 Normal Replace the SMPS PCB EBR64624701 Replace the SMPS PCB EBR64624701 Yes END END END 3 ...

Page 57: ...CHECKING FLOW CHART BY FAIRURE No Display No Power Check thermostat Yes Normal Normal END Yes No No Check the connection of L1 and N from power inlet Replace thermostat Fix or replace the lead wire END 2 1 ...

Page 58: ...URE No Display No Power Yes Normal END No Replace the Oven SYSTEM PCB EBR64624502 Check and fix the connection 1 between Cooktop SYSTEM and SMPS PCB 2 between Cooktop SYSTEM and Oven system PCB 3 between DISPLAY and Oven system PCB 3 ...

Page 59: ...9 5 CHECKING FLOW CHART BY FAIRURE Symptom Check Point 1 No heating 2 F 9 3 F 19 1 Check Electric Wiring 2 The Heater s Resistance 3 Check the Sensor thermistor Heater resistor Check the sensor ...

Page 60: ...ck the electric wiring 1 Harness of Relay connection 2 Each heater s connection 3 System and Relay PCB connection CN11 CN12 Normal No Oven does not heat including F 9 F 19 Error No heating 1 UPPER Harness connection check Fix or replace the lead wire END LOWER ...

Page 61: ...ter Between the DLB Relay s L2 and each heater Relay s Harness point of Figure 1 and measure the resistance after cooling down Normal UPPER LOWER Bake Broil Broil Bake Conv 1 2 Resistor Min Max upper Bake 22 0 29 0 upper broil 45 0 55 0 lower conv 25 0 32 0 lower bake 20 0 25 0 lower broil 12 0 17 0 UPPER LOWER ...

Page 62: ...eck the value of thermistor by using the test mode To enter the testmode follow these steps 1 press the clear key 2 press the LOWER BAKE LOWER BROIL key at the same time for one second 3 press the LOWER BAKE LOWER BROIL key at the same time again 4 press the NUM 3 key Normal The sensor value is from 70 F to 90 F at 25 C UPPER SENSOR LOWER SENSOR ...

Page 63: ...Disconnect the oven sensor and check the value measure the resistance after cooling down Normal approximately 1 06 kΩ at 65 F 1 12 kΩ at 85 F Normal No Yes Normal Replace the Oven SYSTEM PCB EBR64624502 No Yes Replace the Relay PCB EBR64624601 4 END END Replace the oven sensor END ...

Page 64: ...9 10 CHECKING FLOW CHART BY FAIRURE Symptom Check Point 1 Cooktop Not working 1 Check Electric Wiring 2 Check the Heater resistance ...

Page 65: ... or a part of cook top heaters Disconnect power Check the loose connection cook top heater and harness Normal Cook top does not heat Check the loose connector SMPS PCB and Cooktop PCB Reconnect If defective harness replace or fix END Yes Normal No Reconnect 1 ...

Page 66: ...9 12 CHECKING FLOW CHART BY FAIRURE Cook top does not heat Check the cook top heaters measure the resistance between CN10 CN11 CN12 TAB11 TAB09 and SMPS CN1 pin 3 1 2 L2 L1 Normal approximately 100Ω ...

Page 67: ...9 13 CHECKING FLOW CHART BY FAIRURE Cook top does not heat Normal Replace the cooktop system EBR64624802 No Yes 2 END Replace the Cook top heater END ...

Page 68: ...9 14 CHECKING FLOW CHART BY FAIRURE Symptom Check Point 1 Door Lock System Failure 2 F 10 F 20 1 Check the Electric wiring 2 Check the Motor s Resistance ...

Page 69: ...ts to rotate During that time if the door lock switch does not operate properly after rotating twice then supervising circuit detects a Door Lock failure and the F 10 F 20 error code appears Check the terminal looseness of micro switch and door locking motor Normal Door lock system error F 10 F 20 Error Fix the connection Or micro swith 1 END ...

Page 70: ...system error F 10 F 20 Error Normal Yes No Normal Yes No Check the looseness of CN08 Check the door locking motor measure the resistance normal approximately 2 6 kΩ abnormal infinite or below 5 Ω 1 Replace the door locking motor END Reconnect END 2 ...

Page 71: ... 10 F 20 Error Normal Yes No Normal Yes Check the Relay PCB s electric connection CN01 CN03 Check the connection between system PCB and relay PCB CN11 CN12 2 Replace the Oven Relay PCB EBR64624601 Replace the Oven SYSTEM PCB EBR64624502 Reconnect END END No END ...

Page 72: ...LOW CHART BY FAIRURE Symptom Check Point 1 Sensing Fail 2 F 1 3 F 2 4 F 4 5 F 5 1 Check the electric wiring 2 Check the test Mode 3 Check the sensor thermistor resistance approximately 1 06 kΩ at 65 F 1 12 kΩ at 85 F ...

Page 73: ... the test mode To enter the testmode follow these steps 1 press the clear key 2 press the LOWER BAKE LOWER BROIL key at the same time for one second 3 press the LOWER BAKE LOWER BROIL key at the same time again 4 press the NUM 3 key Normal The sensor value is from 70 F to 90 F at 25 C UPPER SENSOR LOWER SENSOR Main oven sensing failed ...

Page 74: ...onnect the oven sensor and check the value measure the resistance after cooling down Normal approximately 1 06 kΩ at 65 F 1 12 kΩ at 85 F Normal No Yes Normal Replace the Oven SYSTEM PCB EBR64624502 No Yes Replace the Oven Relay PCB EBR64624601 1 END END Replace the oven sensor END ...

Page 75: ...9 21 CHECKING FLOW CHART BY FAIRURE Symptom Check Point 1 Oven hot 2 F 6 3 F 16 1 Check the Resistance of the Relay Check the resistance of relays ...

Page 76: ...resistance Each relay s TAB and L1 DLB Relay is measured L2 and TAB Normal No END Replace the oven sensor Welded Normal Continuity Infinite Disconnect the power and oven sensor Check the oven sensor value measure the resistance after cooling down Normal approximately 1 06 kΩ at 65 F 1 12 kΩ at 85 F Oven hot error F 6 F 16 error 1 Each heater RY Common ...

Page 77: ...9 23 CHECKING FLOW CHART BY FAIRURE Normal Replace the Oven SYSTEM PCB EBR64624502 No Yes 1 END Replace the Relay PCB EBR64624601 END Oven hot error F 6 F 16 error ...

Page 78: ...ck the cooktop system No key input Or F 3 END END No No Yes Yes Reconnect Normal No Yes Replace Replace the control supporter Replace Oven system and cooktop system PCB EBR64624502 EBR64624802 Duplicate the Error Is problem OK Remove Harness and check F 3 error duplicate or not after one minute Check the connection between Oven system PCB S CN03 cooktop systme PCB s CN21 END ...

Page 79: ...ace the Oven SYSTEM PCB EBR43296802 Normal Check the connection between MAIN PCB S CN06 and SYSTEM PCB S CN13 Reset failure log and Check the F code 1 press the clear key 2 Press and Hold LOWER BAKE and LOWER BROIL key for 3 seconds 3 In Order to reset failure log press CLEAR pad 4 Press and Hold LOWER BAKE and LOWER BROIL key for 3 seconds again This Harness ...

Page 80: ...B Refer to the page 6 1 6 4 Verify power is present at unit Verify that the circuit breaker is not tripped Replace household fuse capacity Check circuit breaker Repair or replace wiring see wiring diagrams Test and or replace element Test and or replace PCB Refer to the page 6 5 6 7 Verify all connections are clean and tight replace broken wires Test and or replace cook top PCB Refer to the page 6...

Page 81: ...l down period after self clean cycle not complete Improper use of oven e g being used to heat the home Worn or broken broil stop roller Replace power control board PCB Replace power control board PCB Verify power is present at unit Verify that the circuit breaker is not tripped Replace household fuse but do not fuse capacity Refer to Owner s manual instructions Verity all connections are clean and...

Page 82: ...y controlled Oven sensor needs to be adjusted Adjust hinges or replace hinges Adjust or replace hinges Adjust hinges outward Do not cover racks with foil Install tempered glass toward the heat Do not use harsh abrasives or scouring pads See Owner s manual intructions Apply a small amount of vegetable oil to a paper towel and wipe the edges of the oven racks with the paper towel Do not spray with p...

Page 83: ... do so can result in severe personal injury death or electrical shock WIRE COLORS SYMBOL COLOR WH WHITE BK BLACK RD RED YL YELLOW PK PINK BL BLUE BN BROWN GN GREEN GY GRAY RADIANT COOK TOP Wattage RR 1200W approx 47 LR 1200W approx 47 RF 1700W inner approx 32 2700W Dual approx 56 CR 100W approx 570 LF 1400W inner approx 41 3000W Dual approx 19 SCHEMATIC DIAGRAM ...

Page 84: ...ectric 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 LOWER BAKE CONV BAKE CONV ROAST ...

Page 85: ...11 3 LOWER WARM PROOF UPPER BROIL LOWER BROIL ...

Page 86: ...11 4 UPPER SELFCLEAN LOWER SELFCLEAN ...

Page 87: ...11 5 OVEN LAMP CR Cooktop element LR Cooktop element ...

Page 88: ...11 6 RR Cooktop element LF Cooktop element RF Cooktop element ...

Page 89: ... 12 1 EXPLODED VIEW EV INTRODUCTION DOOR PARTS COOKTOP PARTS CONTROLLER PARTS CAVITY PARTS MAY1 MFL1 OWNERS MANUAL MFL3 INSTALLATION MANUAL MODEL ...

Page 90: ... 12 2 EV UPPER DOOR PARTS 1020 1045 1000 1015 W225 W243 1009 W149 W149 W256 W225 W149 1733 1733 1721 1703 1703 W149 1008 1021 W109 1722 ...

Page 91: ... 12 3 LOWER DOOR PARTS 1115 1009 1120 W149 W243 W225 W225 W222 1100 W101 W101 1704 1704 1733 1734 1733 1734 W149 1018 W109 1041 W149 W149 EV ...

Page 92: ... 12 4 CONTROLLER PARTS 2048 W144 W105 W105 2034 2033 W108 2037 3006 3006 2036 W108 W108 2009 W105 W108 W107 2031 2050 2381 2382 2030 2055 2006 2038 2045 2042 2041 2043 2044 EV ...

Page 93: ... 12 5 COOKTOP PARTS 3016 3014 3056 3057 3059 3401 W172 3059 3402 3402 W144 W144 3058 W105 W105 3022 3303 3303 3302 3301 W144 EV ...

Page 94: ...1 3107 3130 3107 3221 5091 5078 5515 5515 5505 5516 5531 5511 5078 4002 5505 5021 5206 5037 3222 5539 5502 5117 3221 5019 5551 3205 W301 3205 3204 3032 5537 5032 3006 W144 W144 W144 W301 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W256 W256 W230 W144 W136 W301 W301 W144 EV ...

Page 95: ...3221 5514 5505 5505 5505 5515 5515 5505 3202 4002 5512 5512 5536 3501 3502 6002 6000 5021 3221 5510 5014 5132 3212 5401 5510 5502 5504 W146 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W146 W146 W235 W146 5518 5001 5517 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W172 W172 W172 W172 W172 W172 W172 W172 W172 W232 W232 W233 EV ...

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Summary of Contents for LDE3017SB

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LG LDE3017SB, Service Manual

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Summary of Contents for LDE3017SB

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