CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a cross-head screwdriver.

Step 2

Disconnect terminals.

Step 3

Measure resistance of heater from terminal in PCB area.

Step 4

Check the result.

DIAGNOSIS 1

PROCEDURE 1

Step 1

Remove all drawers.

Step 2

Remove all shelves.

Step 3

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 pipes out and pull them into a horizontal position;
h. Push the latch down and lift top out of cavity ;

i. Push latch up and pull bottom out of cavity;

j. Pull partition outward and remove partition.

k. View of interior after partition has been removed.

Step 4

Dismantle the air duct.

a. Hold the bottom of air duct;

b. Pull air duct out from below;

c. Disconnect the terminal for fan motor;

d. Disconnect the terminal of freezer temp. sensor;

e. Remove air duct.

CHECK AND TEST 2

Step 1

Check to see if terminal is full of foam.
If yes, use tweezers to remove foam.

Step 2

Ensure terminals behind freezer air duct are properly inserted.

Step 3

Connect terminals with mainboard.

Step 4

Press Freezer Temp. button along with Mode button for 5 sec, “0” flashes in freezer temperature area.

Step 5

Press Freezer Temperature button,
1 and 3 will appear in freezer temperature area.

Step 6

When 3 appears, remove finger and select manual defrost.

CHECK AND TEST 3

Step 1

Use wire to connect the 2 ends of terminal behind freezer air duct.

Step 2

Use multimeter to check whether the connection of wires is good or not.

DIAGNOSIS 3

CHECK AND TEST 4

Step 1

Check if wires for defrost heater are broken or not.

DIAGNOSIS 4

PROCEDURE 2

Step 1

Cut off the wire.

Step 2

Peel off the sleeves.

Step 3

Ensure proper wire order and connect.

Step 4

Tin soldering.

Step 5

Cover point of connection with electrical tape.

CHECK AND TEST 5

Step 1

Measure the resistance of heater from terminal in freezer.

DIAGNOSIS 5

PROCEDURE 3

Step 1

Disconnect the terminals of heater.

Step 2

Use screwdriver to remove the heat conductor.

Step 3

Use 6mm cross-head screwdriver to unscrew on the right and left sides.

CHECK AND TEST 6

Step 1

Reconnect all terminals behind freezer air duct.

Step 2

Connect terminals with mainboard.

Step 3

Press Freezer Temp. button along with Mode button for 5 sec, “0” flashes in freezer temperature area.

Step 4

Press Freezer Temperature button,
1 and 3 will appear in freezer temperature area.

Step 5

When 3 appears, remove finger and select manual defrost.

DIAGNOSIS 6

PROCEDURE 4

Tip 1

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

Tip 2

After pushing the air duct into its position, there should be a sound of click. If no, redo it again.

Tip 3

Check to see if there is a wide gap between air duct and cabinet.
IF SO, install air duct again.

Tip 4

Ensure that latches are properly inserted into cavities.

Tip 5

First, insert top of cover plate into the gap. Then, bend plate to insert the bottom. Lastly, snap middle into place.

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