LG LUTE4619SN Service Manual page 5

Slide-in electric range

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Owner's manual (120 pages)

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Table of Contents

SCHEMATIC DIAGRAM ......................................................................................................................................................5-1

• Lower BAKE/CONV. BAKE/CONV. ROAST .................................................................................................................................................................. 5-2

• Upper Selfclean ............................................................................................................................................................................................................. 5-2

• Lower Selfclean ............................................................................................................................................................................................................. 5-3

• Oven Lamp .................................................................................................................................................................................................................... 5-3

• Bridge Cook-top Element ............................................................................................................................................................................................... 5-3

• CR Cook-top Element .................................................................................................................................................................................................... 5-3

• RR Cook-top Element .................................................................................................................................................................................................... 5-4

• RF Cook-top Element .................................................................................................................................................................................................... 5-4

• Upper BROIL/EASY Clean ............................................................................................................................................................................................ 5-4

• Lower Broil ..................................................................................................................................................................................................................... 5-4

• Upper BAKE/WARM ...................................................................................................................................................................................................... 5-5

• Clock Display On ........................................................................................................................................................................................................... 5-5

COMPOSITION OF CONTROL ...........................................................................................................................................6-1

• Wiring Diagram .............................................................................................................................................................................................................. 6-1

• Main PCB ....................................................................................................................................................................................................................... 6-3

• Oven Relay PCB ............................................................................................................................................................................................................ 6-4

• SMPS PCB .................................................................................................................................................................................................................... 6-5

• Touch PCB ..................................................................................................................................................................................................................... 6-5

• Encoder PCB ................................................................................................................................................................................................................. 6-6

• Wi-Fi PCB ...................................................................................................................................................................................................................... 6-6

• Buzzer PCB ................................................................................................................................................................................................................... 6-6

• Metal Touch System PCB .............................................................................................................................................................................................. 6-6

SERVICE TEST MODE ........................................................................................................................................................7-1

• Sequence of SVC Test Mode ......................................................................................................................................................................................... 7-1

TROUBLESHOOTING .........................................................................................................................................................8-1

• Check the Failure Code ................................................................................................................................................................................................. 8-1

• Failure Code Summary .................................................................................................................................................................................................. 8-2

• Checking Flow Chart by Failure ..................................................................................................................................................................................... 8-3

• Power Failed (Dead), No display? ................................................................................................................................................................................. 8-4

• Oven does NOT heat, F9, F19...................................................................................................................................................................................... 8-8

• Door Lock System Failure,F10 or F20 ? ..................................................................................................................................................................... 8-12

• Sensing Fail, F1 (F4), F2 (F5)? ................................................................................................................................................................................... 8-15

• Oven hot, F6, F16? ...................................................................................................................................................................................................... 8-19

• F3 error (Button short error) Or button does not input ................................................................................................................................................. 8-22

• Key Operation Test Sequence ..................................................................................................................................................................................... 8-23

EXPLODED VIEW ................................................................................................................................................................9-1

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