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

In PCB area, measure the
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 shelves.

Step 2

Remove basket.

Step 3

Remove screw covers.



Step 4

Unscrew.


Step 5

Pull the buttom air duct
out.

Step 6

Disconnect the wires for
thermostat.

Step 7

Take bottom air duct
away.

CHECK AND TEST 2

Step 1

Check if the terminal
is inserted into final
position.

IF NOT, REINSERT
IT.

Step 2

Check if the terminal is
stuffed with foam.

IF SO, USE TWEEZERS
TO SMASH IT AND
REMOVE.

Step 3

Check if sensor is
attached in proper
position, as shown in
picture.
If not, correct it.



Step 4

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

Step 5

Disconnect terminal of
defrost temp. sensor.

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

Set multimeter to
resistance gear.

Step 2

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

DIAGNOSIS 


PROCEDURE 2

Tip 1

Make sure the sealing
sponges are in good
condition.

Step 2

When reinstalling the air
duct, fasten the wires to
avoid crushing with air
duct.

Step 3

Check to see if there is
a wide gap between air
duct and cabinet. If there
is, reinstall air duct.

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