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3-9

DISASSEMBLY INSTRUCTIONS

d. Bend the insulator up and remove the

1 screw.

e. Carefully pull the hidden bake element out of

the oven.

f. When replacing the Bake Element cover use

the 5 screws provided.

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Содержание LSWS305ST

Страница 1: ...N BUILT IN OVEN SERVICE MANUAL MODEL LSWS305ST CAUTION BEFORE SERVICING THE UNIT READ THE SAFETY PRECAUTIONS IN THIS MANUAL P NO MFL37118308 March 2010 Printed in Korea 삼 흥 정 판 Internal Use Only Website http biz lgservice com ...

Страница 2: ...er 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 bracket below the control panel The power supply of the appliance should be turned off when it is being repaired FORWARD LG Electronics assumes no responsibility for any repairs made on our products by a...

Страница 3: ...st Convection bake Crisp convection Convection roast Recipe bank Proof Warm Healthier roast My menu Option Self clean DISASSEMBLY INSTRUCTIONS 3 1 3 3 Component Locations 3 1 DISASSEMBLY INSTRUCTIONS 3 2 3 3 Replacing the control panel and related components 3 2 3 3 Removing the Low Voltage Transformer controller 3 2 Removing the Relay PCB 3 3 Removing the door lock assembly 3 3 Removing the Low V...

Страница 4: ...ormer Controller 4 2 Low Voltage Transformer Halogen lamp 4 2 Oven Thermistor 4 3 Door switch 4 3 Oven lamp 4 3 Broil Element 4 4 Bake Element 4 4 Convection element 4 4 Vent motor 4 4 DIAGNOSIS THROUGH SCHEMATIC 5 1 HOW TO ENTER THE TEST MODE 5 2 SAFETY CAUTION ERROR CODE SUMMARY 5 3 CHECKING FLOW CHART BY FAILURE MODE 5 3 5 18 Dead 5 4 5 8 Oven does not heat including F 9 error 5 9 5 12 Not oper...

Страница 5: ...in or on appliance Flammable materials should not be stored in an oven or near surface elements Wear proper apparel Loose fitting or hanging garments should never be worn while using the appliance DO NOT place aluminum foil directly on the oven bottom Children should be kept away from the oven Accessible parts may become hot when the broil is use DISCONNECT power supply cord from the outlet before...

Страница 6: ...ep Oven Vent Ducts Unobstructed The oven vent could become hot during oven use Never block this vent and never place plastic or heat sensitive items on or near the vent NOTE For proper operation vent trim must be installed Be certain all packing materials are removed from the appliance before operating Keep plastics clothes and paper away from parts of the appliance that may become hot DO NOT forc...

Страница 7: ...s Foods that can easily spoil such as milk eggs fish meat or poultry should be chilled in the refrigerator first Even when chilled they should not stand in the oven for more than 1 hour before cooking begins and should be removed promptly when cooking is completed Eating spoiled food can result in sickness from food poisoning Should an oven fire occur leave the oven door closed and turn the oven o...

Страница 8: ...he health of birds is extremely sensitive to the fumes released during an oven self clean cycle Fumes may be harmful or fatal to birds Move birds to well ventilated room Important Instruction In the event the self clean error code F is displayed and error melody sounds the oven is malfunctioning in the self clean mode Switch off the electrical power to the main fuse or breaker and have serviced by...

Страница 9: ...EL SERIAL NUMBER LABEL AND MODEL SERIAL NUMBER LABEL AND TECH SHEET LOCA TECH SHEET LOCATION TION The Model Serial Number label and Tech Sheet locations are shown below Model Serial Number Location Tech Sheet Location ...

Страница 10: ... area Left right sides Liquid Crystal Display At bake mode 24 1 2 17 11 16 18 5 8 23 5 8 13 9 16 17 3 16 28 1 2 28 15 16 23 1 2 29 3 4 29 5 16 24 3 8 154 lbs 33 34 30 187 lbs LSWS305ST Built in Single wall oven 240 V 60 Hz Sheath heater Carbon heater 4 1 KW 17 3 A Bake 2 500W 10 4A Broil 4 000W 16 7A Convection 2 500W 10 4A Lamp 12V 10W 0 8A Lamp 12V 10W 0 8A 2 Cooling motor 120V 41W 0 34A Convect...

Страница 11: ... Top element operates during broil Broil can be used to cook foods which are normally broiled Preheating is not required when using broil All foods should be turned at least once except fish which does not need to be turned Convection Bake Roast Mode Upper element lower element Rear element and fan operate during convection bake Convection bake should be used for cooking casseroles and roasting me...

Страница 12: ...p convection mode 11 Conv Roast Use to select the convection roast mode 12 Recipe Bank Use to recall the recipe category of gourmet food 13 Proof Warm Use to proof bread Use to hold food warm 14 Healthier Roast Use to select the healthier roast mode 15 My Menu Use to save or recall the favorite 10 cook mode 16 Set up Use to change the special settings 17 Self Clean Use to select the self cleaning ...

Страница 13: ...te during the use of the timer Setting Limit 11Hour 59Min 2 Min and Sec Setting 3 Hour and Min setting 4 When the set time has elapsed Timer End is displayed Timer alarm melody will sound every 15 seconds until TIMER is pressed Press timer key in order to cancel running timer or clear timer end alarm The time less than 1hour is displayed in min and sec on timer operation 5 CONTROL LOCKOUT 1 The ST...

Страница 14: ...tment is available for Bake Roast Convection Bake Roast Crisp Conv Healthier Roast Temperature Adjustment can be confirmed by measuring real Oven Cavity Temperature 7 Clock Time 1 Requirement The clock key is used to set the clock in idle mode The clock can be set to 12 or 24 hour format am and pm can be set in 12 hours When the oven is initially plugged in or when the power supply to the oven is ...

Страница 15: ... START Crisp Conv Desired Temperature START Conv Roast Desired Temperature START Proof Desired Cook time START Warm Selected Temp START My Menu create Select cook menu Desired temp Option Enter My menu Start Time Desired Start time START Select My menu START Broil Desired Broil Full Center Desired Temp High Med Low START Healthier Roast Selected food category Desired Temperature START Recipe Selec...

Страница 16: ...d their locations are shown below COMPONENT LOCA COMPONENT LOCATIONS TIONS Oven Sensor Convection Motor Convection Heater Upper Door Switch Upper Oven Light Main PCB Display PCB Side Key PCB Low Voltage Transformer Hinge Hanger Upper Door Latch Assembly Bake Heater 3 1 DISASSEMBLY INSTRUCTIONS ...

Страница 17: ... Hook Hook Hook Hook Hook Hook CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN03 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN11 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN08 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN04 CN02 CN02...

Страница 18: ... door and the control panel Grasp the hook on the motor and pull towards the left Be careful not to damage the oven 3 While holding the door latch in the Unlocked position you can now open the door Note Refer to the service manual for proper replacement of the door lock motor 4 To remove the Halogen lamp remove the 1screw Disconnect the 5 connections 5 To remove the Surge filter remove the control...

Страница 19: ...onvection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil elements Convection elements Blade fan Broil eleme...

Страница 20: ...eplace the halogen lamp then reinstall the glass cover Note The above instructions can be used for replacing any of the halogen bulbs in either oven 5 To remove oven temperature sensors Remove the 2 screws from the temperature sensor bracket Pull the temperature sensor forward and remove the connector Mounting Scews 3ea Fan Cover Scews 4ea Outer Inner Cavity Convection Heater Fan Blade Fan Cover W...

Страница 21: ...isconnect connector CONTROLLER PARTS Vent motor Thermal limiter Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Door switch Section 2 Section 3 Section 1 WARNING ELECTRIC SHOCK HAZARD Unit must be disconnected from electrical outlet when making...

Страница 22: ...re cools below 14 F 10 C The lower thermostat is located next to the broil element It opens at 356 F 180 C and closes when the oven temperature cools below 14 F 10 C 3 To remove door switch Remove the 1 screw from the top right panel 4 Squeeze tabs on switch and slide through the front Disconnect the wires from terminals 6 To remove the Thermal limiter Convection motor and Bake Element from the ov...

Страница 23: ...n fan motor first follow the steps for removing Convection Heater a Disconnect the 2 wire leads and remove the 3 screws from the motor bracket b Separate parts of cavity inner between cavity outer properly refer to the page3 5 About cavity inner disassembly method 3 To remove the hidden bake element a Remove the Barrier bracket b Disconnect the 2 wire leads remove the Bake element cover c Cut the ...

Страница 24: ...3 9 DISASSEMBLY INSTRUCTIONS d Bend the insulator up and remove the 1 screw e Carefully pull the hidden bake element out of the oven f When replacing the Bake Element cover use the 5 screws provided ...

Страница 25: ... slot 4 Push the hinge locks up against the front frame of the oven cavity to the locked position 5 Close the oven door To remove the door 1 Fully open the door 2 Pull the hinge locks down toward Fig 1 the door frame to the unlocked position 3 Firmly grasp both sides of the door at the top 4 Close door to the door removal position which is approximately 5 degrees refer to the Fig 2 5 Lift door up ...

Страница 26: ...ws 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 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 4 top liner screws 4 top liner screws Hinge screws Hinge screws Hinge screws Hinge screws Hin...

Страница 27: ...R 1 off the door liner 8 Lift the inner oven door glass and bracket assembly out of the door liner COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 COVER_INNER 1 INNER OVEN DOOR GLASS BRACKET ...

Страница 28: ... Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Door gasket Gasket clip Gasket clip Gasket clip Gasket clip Gas...

Страница 29: ...s not fully seated into the connectors 3 Resistance checks must be made with power disabled form oven and with wiring harness or connectors disconnected Before testing any components perform the following checks WARNING Disconnect power supply before servicing Replace all panels and parts before operating Reconnect all grounding devices after servicing Failure to do so can result in death or elect...

Страница 30: ...e 3 2 for disassembly 2 Measure the resistance Multiple meter scale R x 1 1 Refer to page 3 2 for disassembly 2 Measure the resistance Multiple meter scale R x 1 Normal Approximately 26 Ω 10 Replace if Infinite or below 1Ω Normal Approximately 9 8 Ω 10 Replace if Infinite or below 1Ω Components Test procedures Results NO COM Normal Approximately 2550 Ω Replace if Infinite opened below 5 Ω shorted ...

Страница 31: ...after cool down Multiple meter scale R x1 Normal Approximately 1090 Ω Replace if Infinite opened below 10 Ω shorted Door open Door closed Continuity Infinite NOTE After checking for the continuity of switch make sure to reconnect leads properly 1 Refer to page 3 7 for disassembly 2 Measure the resistance after cooling down Multiple meter scale R x 1 NOTE Ω Value should be tested at room temperatur...

Страница 32: ... resistance after cool down Multiple meter scale R x 1 Normal Approximately 32 5 Ω Replace if Infinite opened 1 Refer to page 3 6 for disassembly 2 Measure the resistance after cool down Multiple meter scale R x 1 Normal Approximately H C 16 Ω L C 20 Ω Replace if Infinite opened below 5 Ω shorted NOTE Ω Value should be tested at room temperature 77F 25 C NOTE Ω Value should be tested at room tempe...

Страница 33: ...g Check Open Short Symptom No heating F 9 Check All heater Relays Short Symptom Oven hot F 6 Check Open Short Symptom Dead Door lock failure F 1 Symptom Check Using test mode Symptom Sensor error or no heating F 1 F 2 Model LD3580SP 30 Built in Oven Apply schematic from Tech sheet ...

Страница 34: ...e pushed even though LG Logo is disappeared on the screen NOTE Before entering Test Mode make sure to record the customers settings such as items in MY MENU and SET UP When the Test Mode is activated is can erase items the customer has added or changed in these menus How to enter the Test Mode in the Main Mode 1 If you push Set Up Menu START HiddenKey 3 START button in order you can enter the test...

Страница 35: ...or Oven Thermistor remain open for over 1 min after cook starts Oven Thermistor is shorted for over 1 min after cook starts When touch senor key has some error for 60 second Oven temperature is over 650 F 343 C continuously during 2 minutes on cooking Temp Probe Thermistor is shorted for over 1 min after cook starts If oven temperature in the oven does not exceed 150 F 66 C in less than 5 minutes ...

Страница 36: ...5 4 CHECKING FLOW CHART BY FAILURE MODE Symptom Check Point 1 Dead 2 No Display 1 Check for power to wall oven 2 Check the thermostat 3 Check the Transformer 4 Check the System and Display Dead ...

Страница 37: ... loose connector s or disconnect CN01 CN02 CN03 between system CN10 and display CN10 Check AC input voltage of oven System PCB CN01 pin 1 and 3 Should have 120VAC No display Connector is ok Fix the connection END L1 N Power off Power On 1 No Yes Dead ...

Страница 38: ...proximately Under100 Ω Secondary 1 yellow yellow approximately Under 50 Ω Secondary 2 red red approximately Under 50 Ω Is it OK Is it short Is it 120V AC Replace the thermostat END 2 1 No No Replace the power transformer END No Check the Thermostat open short L1 and CN01 s RD color wire N and CN01 s WH color wire If it have the error it is open state Yes Yes Power off Dead ...

Страница 39: ...Vcc CN10 s pin11 Vcc and pin9 GND The voltage should be 4 5 VDC 5 8 VDC Check the Display s Vcc CN10 s pin11 Vcc and pin9 GND or C228 or C19 Don t remove the harness The voltage should be 4 5 VDC 5 8 VDC Power On Is the voltage OK Replace the system PCB END No Dead ...

Страница 40: ...5 8 CHECKING FLOW CHART BY FAILURE MODE 3 Is the voltage OK Replace the Display PCB Check the System s PCB Replace the Display PCB END END No Yes Dead ...

Страница 41: ...Check Electric wiring and PCB s connection 2 Check the thermostat 3 Check the heater s resistor 4 Check the sensor Check Open Short Symptom No heating Check connection Symptom No heating Check Elements Resistance ohms Symptom No heating Oven does not heat including F 9 error ...

Страница 42: ... it is open state Check the electric wire connection DLB and and harness of Relay and each heater s connection And system PCB and Relay PCB CN11 Loose connection and disconnection Is it short END No Yes Replace the thermostat Oven does not heat including F 9 error No heating including F 9 error Is connection OK Fix the connection END No Yes L2 L2 1 ...

Страница 43: ...oil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Inner Broil Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Convection Out Broil Out Broi...

Страница 44: ...osis Oven sensor After value the sensor value are 70 F 90 F at 24 C Oven does not heat including F 9 error 2 Power On Check the thermistor s resistor CN04 pin3 4 Normal approximately 1 09 kΩ Power Off Is the value OK No Yes Is the value OK OK Replace the Relay PCB END END No Replace the System PCB No Yes Yes ...

Страница 45: ...er ITO film Glass touch PCB Check the connection key pcb s CN7 and between display pcb and key pcb CN6 Is Key operating OK No Yes Replace the Display pcb Not operating Key including F 3 error Key operating fail F 3 Is connection OK Fix the connection No Yes END CN7 CN6 ...

Страница 46: ...t the door lock motor starts 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 error code appears Check the terminal loose of micro switch and door locking motor Is the connection OK lock system failure including F 10 error 1 ...

Страница 47: ...Yes No OK Yes Fix the connection Replace the Relay PCB Replace the System PCB Check the Relay PCB s electric connection CN01 CN03 Check the connection between system PCB and relay PCB CN11 END END Check the loose connector Oven main PCB CN08 Check the locking motor measure the resistance Normal approximately 2 6 kΩ Abnormal infinite or below 5 Ω 1 2 3 1 ...

Страница 48: ...is Oven sensor After value the sensor value are 70 F 90 F at 24 C Check the thermistor s resistor CN04 pin3 4 Normal approximately 1 09 kΩ Power Off Is the value OK No Yes Is the value OK Replace the system PCB END No Yes Oven Thermistor failed including F 1 F 2 error oven sensing failed including sensor error ...

Страница 49: ...CB forward from case Oven too hot including F 6 error Oven is too hot F 6 error Disconnect power Check the L1 TAB1 18 TAB6 20 and all the heater relay welded or not AND measure the resistance L1 Welded Normal Continuity Infinite Normal Yes No Replace the relay PCB Replace the system PCB END ...

Страница 50: ...Communication check Ok or NG OK No Yes Is the connection OK Check the test mode 1 power check END No Yes Communication error F 10 error F 10 error communication error Check the connection between the system and display CN10 Do they operate the Heaters Yes No Replace the System PCB Replace the Display PCB END ...

Страница 51: ...6 1 SCHEMATIC DIAGRAM ...

Страница 52: ...ing electric 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 Full Broil mode Center Broil mode ...

Страница 53: ...6 3 Crisp Convection mode Conv Bake Conv Roast mode Note In case of Bake mode the convection fan will operate only for preheating ...

Страница 54: ...6 4 Bake Roast mode Self Clean mode ...

Страница 55: ...6 5 Warm Proof mode ...

Страница 56: ... 7 1 EXPLODED VIEW EV INTRODUCTION DOOR PARTS CONTROLLER PARTS CAVITY PARTS MAY000 MAX171 COOK BOOK MFL552 OWNERS MANUAL MFL409 INSTALLATION MANUAL ...

Страница 57: ... 7 2 EV DOOR PARTS 1009 1030 1401 1120 1121 1703 1008 W149 W149 W149 1000 1040 W225 W225 W257 W256 W256 W256 1402 1703 1704 W149 W149 ...

Страница 58: ... 7 3 EV CONTROLLER PARTS 2381 2050 2006 2119 2009 2118 W108 W105 W105 W258 ...

Страница 59: ... 3006 3006 5116 5410 3062 5450 5517 5124 5073 5073 5701 5117 3006 5414 5508 5014 5010 5611 5503 5717 5718 5506 5505 5449 5506 5507 5562 5550 5540 5090 5550 5550 5514 5441 5451 5561 5505 5449 5513 5602 5601 5601 3022 5021 5512 5512 5516 5515 5515 5522 5401 W230 W259 W259 W230 4002 5407 W232 W233 5406 5041 5001 5561 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W144 W230 6001 W144 W259 W144 EV ...

Страница 60: ... 7 5 ASSEMBLY W144 W144 W144 W144 W144 W144 W144 3029 3605 3603 3604 5527 3311 3602 3601 3013 W144 W121 W144 W144 3018 3511 3044 3144 5080 3312 W144 EV ...

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