LG LFC23760ST is not powering on where is the reset button

Are fans working? Any frost buildup on inside back freezer wall?

There is no reset button you need to call a technician
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Probably a bad fuse on the main board. Fuse is not replaceable so either you have do a workaround (search LG refrigerator fuse repair for several fix videos and how-to's) or you have to replace the whole control board (part EBR41531302 I believe, but double check with your the part vendor before ordering).

Check the fuse by pulling the refrigerator out, unplugging, taking off back control board panel, and checking the fuse for continuity.

No need to buy a new main control board !
The problem is mainly from the fuse that soldered in the main control board, go to buy a "125V 15A or 250V 15A" fuse ($5.00 a pack of 5 pcs), cut the burnt fuse from the board, re-soldered the new fuse into the board, the refrigerator work again. you save $80 for the labour cost of the technician and $180 for the cost of a new main board.

More than likely the main control board has failed.

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LG LFC23760ST
I recorded a 2 part movie clip on how I repaired the blown fuses on my LG refrig's circuit board.

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The making of ice may speed up a bit after the whole unit interior and insulation is cooled down.

You have a blown fuse on the line incoming voltage circut. Remove the main board cover on the back and look for a glass metal ends 20 amp fuse. You can remove the fuse carefully with a soldering iron and solder a new one back in and you will be running again!

Fuse1 blown, replace it with a pigtail 250V, 15A fuse. It's soldered on the board, so it's not that straight forward.