Entrance of drain pipe is covered by freezer air duct, you need to disassemble freezer air duct and remove evaporator to check it.

Remove the freezer drawer.

Remove the middle glass shelf located between upper and bottom freezer drawer compartments.

Unscrew air duct

a. Check the freezer air duct to find the three screw covers.

b. Remove the screw covers (total of three) on the air duct with slotted screw driver.
c. Unscrew all three screws with Cross- head screw driver.

Dismantle the air duct.

a. Catch the bottom of air duct.

b. Pull air duct out from below from the bottom of air duct.

c. Pay attention to the connectors when pulling out the air duct.

d. Disconnect the terminal for fan motor.
e. Disconnect the terminal of temp. sensor.

Check to see if heat-conducting wire is missing.

Pour water into drain pipe to check if it is blocked with foam.

Use metal rod with tip head to smash foam in drain pipe.

When re-installing the air duct, move the wires out of the way so that they won’t be crushed by air duct.

After pushing air duct into position, it should make a click sound. If no click is heard, do it again.