Disassembly Online Training Manual for LG Products - Electric Range Disassembly

WARNING!


•    Always disconnect the power cord before servicing the range.

•    Replace all panels and parts before operating the range after repairs.

•    Reconnect all grounding devices, clips, pins, and wires. Failure to do this could result in personal injury, electric shock, or death.

•    Wear gloves to protect your hands from the sharp edges of sheet metal.


BACK COVER and CONTROL COVER


16_1 Remove 3 screws that secure the control cover. Remove the cover and store it where it will not be bent or damaged.

Remove 17 screws that secure the back cover. Remove the cover and stow it where it will not be bent or damaged.


PCB (Printed Circuit Board) ASSEMBLY



16_2
Unplug the connectors from the PCB.

Remove 6 screws and take out the board.





16_3
Remove 6 screws from the cooktop display board and 1 screw from the control power supply.


17_1
Remove 4 screws that attach the controller subassembly to the supporters.







NOTE: Two of the screws are hidden under the bottom edge of the control panel. (See illustration.)






17_2
Pull the controller subassembly out at the bottom from the front and lift it up and over the top.







17_3
To service the key membrane, the panel should be completely removed from the range.




CONTROL POWER SUPPLY and POWER CONTROL BOARD



17_4
There are 3 power control boards in this range. When checking these boards, be sure to check the right one, make sure it is in default mode, and check the main board as well.

The 3 power control boards are:

•    Oven Main Board

•    Cooktop Main Board

•    Oven Relay Board





CONTROL POWER SUPPLY

18_1




Unplug both connectors on the power control board.





Remove the screw near the low-voltage transformer to remove the board from the range.


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