Air-back-to-freezer duct is covered by freezer air duct, you need to disassemble freezer air duct and remove evaporator to check.

Remove all the drawers.

Remove all shelves.

Remove the vertical partition plate:
a. Insert 2mm slotted screwdriver into the gap;
b. Lever up the cover plate from bottom;

c. Insert 2mm slotted screwdriver into the side gap;
d. Lever up the cover plate from bottom;

e. Pull the bottom end of cover out;
f. Pull the top of the cover out;

g. Take out pipes and pull them down into a horizontal position

h. Push the latch down and pull top out of the cavity;

i. Push the latch up and pull bottom out of the cavity;
j. Pull partition outward and remove it;

k. View inside fridge once partition has been removed.

c. Disconnect the terminal for fan motor;

d. Disconnect the terminal of freezer temp. sensor;

e. Move air duct away.

Use 6mm cross-head driver to unscrew on left and right.

Raise evaporator and heater 20mm, the bottom must be higher than the edge of the trough.

Use hair dryer to blow hot air into air-back-to- freezer duct.

Put hand near freezer outlet to feel if hot air is coming out or not.

Keep blowing hot air into the air-back-to-freezer duct for several minutes. If a lot of water flows from the outlet, the duct is blocked with ice.

DIAGNOSIS 1

Use hair dryer to blow hot air into air-back-to- freezer duct.

Put hand near freezer outlet to feel if hot air is coming out or not.

DIAGNOSIS 2

PROCEDURE 2

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.

Check to see if there is a wide gap between air duct and cabinet.

IF SO, install air duct again.

Check to ensure that the latch is properly inserted into the cavity.

First, insert top of the cover plate into the gap, then bend the plate to insert the bottom. Finally, push the middle into the slot.