PROCEDURE 1



Step 1

Unscrew the screw of fridge air duct.

Step 2

Remove the LED lamp cover and the screw.

Step 3

Remove the air duct.

Step 4

Unplug the electrical wires.

Step 5

Disconnect the terminal of potentiometer.

Step 6

Remove the UI film.

Step 7

Remove PCB box from air duct.
a) Use 2 mm slot screw driver to create a gap in front side.

b) Insert a steell ruler to even the gap.

c) Pull the PCB box out.

Step 8

Disassemble PCB box.
a）Prize off the buckle;
b) Remove the cover;

c) Disconnect the terminals;
d) Unscrew and remove the PCB.

CHECK AND TEST 1

Step 1

Chcek if the terminal is filled with foam.

Step 2

If so, use tweezers to remove it.
Picture on the right shows removal method.

Step 3

Reconnect the terminals.

Step 4

In PCB area, use multimeter to measure resistance value.

Step 5

Take note of the result.

Step 6

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

DIAGNOSIS 1



CHECK AND TEST 2

Step 1

Connect the ends of blu wires for defrost sensor.


Step 2

Test the conenction from the terminal marked in the right picture.

Step 3

Read the value of multimater.


DIAGNOSIS 2


PROCEDURE 2


Step 1

Remove freezer shelf.

Step 2

Lever 2 screw covers off.

Step 4

Remove air duct:
a. Hold the air duct from air exit and pull air duct out;

b. Disconnect the terminal of fan motor;

c. Take air duct away.

CHECK AND TEST 3

Step 1

Make sure sensor is properly located by
comparing with photo on right.

Step 2

Check if the wires of sensor are broken or not.

DIAGNOSIS 3


CHECK AND TEST 4

Step 1

Cut wire of desfrost sensor off.

Step 2

Test the resistance from the 2 ends in right
picture.

Step 3

Record the tested value of resistance.

Step 4

Record the tested temperature.

DIAGNOSIS 4


PROCEDURE 3


Step 1

Peel off the sleeves.

Step 2

Check to ensure proper wire order and connect
them.

Step 3

Tin soldering.

Step 4

Cover connection with electrical tape.

CHECK AND TEST 5

Step 1

Use a multimeter to measure the resistance
value of defrosting temp. sensor from terminal
located in fridge.

Step 2

Record the resistance.

DIAGNOSIS 5




PROCEDURE 4


Tip 1

Firstly insert the air duct into the slot at the
bottom.

Tip 2

When reinstalling air duct, move wires out
of the way to prevent crushing by air duct.

Tip 3

After pushing air duct back into position, you
should hear a clicking sound. If there is no
click, please repeat again.

PROCEDURE 5


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