LG LTC20380 Owner's Manual page 12

After changing doors, make sure that the corners
of the Door Gaskets are not folded over. To ensure a
good seal, apply a small amount of silicon grease on
the corners of gaskets.
Corners
Tighten the bolts. Force-fit Top Hinge Cover over Top
Hinge.
Replace cover on the top left side of the refrigerator
to the right top to cover the holes. Cover is also
force-fitted.
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