CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Check if terminal is not
insert final position.

Step 3

In mainboard area, check
if terminal is stuffed with
foam.

Step 4

Measure resistance of
heater from terminal in
PCB area.

Step 5

Check the result.

DIAGNOSIS 1

PROCEDURE 1

Step 1

Remove the freezer
drawer.

Step 2

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

Step 3

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 Crosshead
screw driver.

Step 4

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;




f. Take the air duct
out of the freezer
compartment.

CHECK AND TEST 2

Step 1

Check to see if terminal
is full of foam.

If yes, use a 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
Temperature button
together 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.

DIAGNOSIS 2


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.

Step 4

Lift evaporator and
heater up 20mm. The
bottom of refrigerator
must be higher than the
edge of water trough.

WARNING!



Be careful not to deform
pipes in red square
during step 4.

Step 5

Loosen the clips for
fastening heater. There
are 8 clips in total.

Step 6

Remove the heater.




REVERSE THE
ABOVE PROCESS
TO REINSTALL THE
HEATER.

CHECK AND TEST 6

Step 1

Reconnect all terminals
behind freezer air duct.

Step 2

Connect terminals with
mainboard.

Step 3

Press Freezer
Temperature button
together 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


Tip 2

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


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