CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Check if terminal in PCB
area is pushed to final
position.
If not, reinsert it to final
position.

Step 3

Set multimeter to resistance gear.

Step 4

Test resistance of sensor
from terminal in PCB
area.

Step 5

Take note of value.

Step 6

Measure the temperature
of freezer air duct, near the
defrost temp. sensor.
Use measured temperature
to find the standard
resistance value in
Temperature-Resistance
Chart of Sensor.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Remove all freezer
drawers.

Step 2

Remove all freezer
shelves.

Step 3

Remove screw covers (total of two) on upper
freezer air duct with Slotted Screw Driver.


Step 4

Unscrew screws (total
of two) on upper freezer
air duct with Cross-head
screw driver.

Step 5

Catch bottom of air duct
upper freezer air duct
and pull all buckles (total
of 8) down.

Step 6

Take out upper freezer
air duct by tilting to one
side.
Pay attention to the
connectors when pulling
out the air duct.

Step 7

Disconnect the terminal
for fan motor and move
upper freezer air duct
away.

Step 8

Remove the screw cover
on bottom freezer air
duct with Slotted Screw
Driver.

Step 9

Unscrew the screw on
bottom freezer air duct
with Cross-head screw
driver.


Step 10

Catch bottom of air duct
bottom freezer air duct
and pull all buckles
(total of 10) down.

Step 11

Take out the lower air
duct, tilting to one side.

CHECK AND TEST 2

Step 1

Check if terminal (B) is inserted to final position. 

Step 2

Check if sensor attached
in correct position, as
shown in picture.

Step 3

Check if wire of defrost
sensor is broken.
If yes, replace it with a
new one.

Step 4

Disconnect terminal of
defrost temp. sensor (B).

Step 5

Check if the terminal is
stuffed with foam.

Step 4

Measure resistance of
defrost temp. sensor
from terminal in freezer,
and take note of it.

Step 7

Measure the temperature
of defrost temp. sensor.
Use measured
temperature to find the
standard resistance
value in Temperature-
Resistance Chart for
Sensor.

DIAGNOSIS 2


CHECK AND TEST 3


DIAGNOSIS 3


CASE 1:
METAL DOOR



PROCEDURE 2


Step 1

Push a 6mm sucker
onto display and turn
the knob to strengthen
suction force.

Step 2

Attach strap to knob
to facilitate pulling out
display board.

PROCEDURE 3


Tip 1

After connecting
terminal, please tape
wires in place to prevent
crushing by the cover.

Tip 2

After inserting displayn into cavity, press edge
until you hear a clicking sound, this means the
board is pushed properly into final position.
Please press all buttons on display
board to make sure display functions
properly.




CASE 2:
GLASS DOOR

PROCEDURE 2


Step 1

Lever off the cover on
door cap.

Step 2

Remove the screws (in
total 2).

Step 3

Pull out the plastic;

Step 4

Disconnect the terminal
for display panel.

Step 5

Remove tape.

Step 6

Push display out by the
corner.

PROCEDURE 3


Tip 1

Please press all buttons
on display board to verify
if it is working properly.
Make sure all words and
icons are clear.

Tip 2

If not clear, disassemble
and put tape on points
indicated by red circles.

CHECK AND TEST 4


PROCEDURE 4


Step 1

Unscrew cover of
mainboard with a
Cross-head screwdriver.

Step 2

Disconnect terminals.

Step 3

Unscrew the mainboard. 

Step 4

Prize off the buckle. 

Step 5

Remove mainboard. 

PROCEDURE 5


CHECK AND TEST 5


PROCEDURE 5


Tip 1

When restoring the upper freezer air duct,
fasten the wires to avoid crushing them with air
duct.

Tip 2

All buckles should be pushed into proper final
position. If not, please repeat installation.

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