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.

Step 8

b) Insert a steel 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 right only shows removal method.

Step 3

Reconnect the terminals

Step 4

In PCB area, use multimeter
to measure output for LED.

DIAGNOSIS 3


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