CHECK AND TEST 1

Step 1


Unscrew cover of
mainboard with a
Cross-head screwdriver.


Step 2

Measure resistance of
heater from terminal in
PCB area.

Step 3

Check the result.

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

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

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 (C) is
inserted to final position.
If not, re-insert it.


Step 2

Disconnect the terminal for defrost heater.

Step 3

Check if the terminal is filled with foam.

Step 4

Measure the resistance of heater from terminal
in freezer.

Step 5

Assess the result.

DIAGNOSIS 2


PROCEDURE 2


Step 1

Use screwdriver to remove the heat conductor (if any).

Step 2

Use 6mm cross-head screwdriver to unscrew
the defrost heater.

Step 3

Cut off the fastening straps.

Step 4

Tear off Polyethylene sealing foam.

Step 5

Loosen the fastening clips for heater.

Step 6

Remove the heater, reverse above process
to reinstall the new heater.


  

WARNING:
Be careful not to
deform pipes in
red square during
steps 5 and 6.

PROCEDURE 3


Tip 1

Be careful not to damage the wires of the heater when installing the new heater. 

CHECK AND TEST 3


Step 1

Set multimeter to
resistance gear.

Step 2

Use multimeter to check whether wire
connections in foam are good or not.

DIAGNOSIS 3


CASE 1:
METAL DOOR





PROCEDURE 4


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 5


Tip 1

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

Tip 2

After inserting display 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 4


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 5


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 6


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


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