CHECK AND TEST 1

Step 1
Unscrew cover of
mainboard with a
Cross-head screwdriver.


Step 2

Check if terminal in PCB area is inserted 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 temperature of freezer temp. sensor. Use the 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 upper drawers.  

Step 3

Remove bottom drawer.


Step 4

Remove drawer cover.



Step 5

Remove glass shelves under drawers.  

Step 6
Prize off the decorative panel and take if off.  

Step 7

Unscrew the upper air duct.  

Step 8
Pull outward and take off the upper air duct.  

Step 9
Unscrew the lower airduct.  


Step 10

Disconnect the connectors between airduct and cabinet.

Step 11

Remove the lower air duct.

CHECK AND TEST 2


Step 1
Check if the terminal is stuffed with foam.  

Step 2
  Measure resistance of freezer temp. sensor from terminal in freezer air duct cover.  

Step 5
Measure temperature of freezer temp. sensor. Use the measured temperature to find the standard resistance value in TemperatureResistance Chart for Sensor.

DIAGNOSIS 2

Disconnect the terminal
for display panel.


CHECK AND TEST 3

Step 1

Set multimeter to resistance gear  

Tip 2

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

DIAGNOSIS 3



PROCEDURE 2


Tip 1

Make sure the sealing sponges are in good condition.

Tip 2

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

Tip 3

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

CHECK AND TEST 4

Disassemble the LED
bracket.


DIAGNOSIS 5



PROCEDURES 3


Step 1

Push a 6mm sucker onto display and turn the knob to strengthen suction force.

Step 2

Wrap a belt around knob to make it easier to pull out of display board.  

Tips for installing display.

Tip 1

After connecting terminal, please use tape to fasten wires to avoid crushing with cover





Tip 2

After putting display into cavity, press edge until you hear a clicking sound, this means the board is pushed into final position

Tip 3

Please press all buttons on display board to make sure it works well.

PROCEDURE 6


Step 1

Unscrew cover of mainboard with a Cross-head screwdriver

Step 2

Prize off the connector buckles.

Step 3

Disconnect the connectors.

Step 4

Unscrew the mainboard.

Step 5

Prize off the buckle to remove mainboard.

Reverse steps above to install a                     new mainboard.

DIAGNOSIS 6

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