CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver.

Step 2

In PCB area, check if terminal is pushed into nal position.

Step 3

In PCB, check to see if terminal is filled with foam.

Step 4                                        If so, use tweezers to remove it.                                                                          

Step 5

In PCB area, use multimeter to measure resistance value

.

Step 6

Take note of the result

Step 7

Measure the temperature of freezer air duct, close to sensor.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Remove the drawers

Step 2

Remove the glass partition.

Step 3

Remove the 3 screw covers.

Step 4

Remove the 3 screws.

Step 5                                                            Pull air duct out.

Step 6

Disconnect the terminal of fan motor.

Step 7

Remove the air duct.

CHECK AND TEST 2

Step 1

Check if terminal is inserted to nal position.
If not, please re-insert it to final position


Step 2

Check if sensor is fix to correct 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.

Step 5                                       Check if the terminal is stuffed with foam.
If so, use tweezers to smash it and remove.


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.

DIAGNOSIS 2


PROCEDURE 2

Tip 1

When reassembling the air duct, move wires to
prevent crushing with edge of air duct.

Tip 2                                             After pushing air duct into position, it should
make a click sound. If no click is heard, do it again.


Tip 3                                    Check to see if there is a large gap between air
duct and cabinet.
If there is, re-install air duct again.

DIAGNOSIS 3


CHECK AND TEST 3

Step 1

Set multimeter to resistance gear.

Step 2

Use a wire to connect the terminals in PCB
area and measure the resistance in foam side
(as shown in photo).

DIAGNOSIS