CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

 In mainboard area, check
if terminal is inserted to
final position.
If not, reinserted to final
position.

Step 3

Set multimeter to
resistance gear.

 

Step 4

In PCB area, measure
resistance of defrost
temp. sensor with a
multimeter.

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 for 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 terminal (B) is
inserted to final position as
showing in picture.
If not, correct it.

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 6

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

Step 1

Put detector into one
end of wires in PCB area.
Put another detector into
end of wires behind air
duct.

DIAGNOSIS 3


PROCEDURE 2


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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