CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Test resistance of potentiometer from “DOOR” and “GND”.

Step 3

Turn the knob from 0 to max to test resistance of potentiometer. 

DIAGNOSIS 1


PROCEDURE 1


Step 1

Remove shelves. 

Step 2

Remove chill box. 

Step 3

Remove chill flap. 

Step 4

Lever 2 decorative strips off and remove. 

Step 5

Remove the 4 screws. 

Step 6

Pull out fridge air duct. 

PROCEDURE 2


Step 1

Disconnect the terminals. 

Step 2

Lever clasp off. 

Step 3

Disconnect the terminal.


Reverse procedures above to reinstall potentiometer. 

CHECK AND TEST 2

Step 1

Check to see if terminals are pushed into final position. 

If not, repeat. 

Step 2

Check to see if terminal on fridge wall is filled with foam.

Step 3

If so, use tweezers to remove the foam. 

Step 4

Connect the 2 ends (“door” and “GND”) of terminal for potentiometer.

Step 5

Check the connections of wires for potentiometer.


DIAGNOSIS 2


CHECK AND TEST 3

Step 1

Measure resistance of potentiometer on each gear. 

DIAGNOSIS 3


PROCEDURE 3


Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Pull out the buckle to take out wires. 

Step 3

Unscrew the mainboard. 

Step 4

Disconnect terminals. 

Step 5

Pull out the buckle to remove mainboard.


Reverse above steps to install a new board. 

PROCEDURE 4


Tip 1

When reinstalling fridge air duct, first put the positive end of buckle on the top into the negative ends. 

Tip 2

Then put the positive end of buckle on the sides into the negative ends. 

Tip 3

Lastly, fasten the buckles on the sides by knocking them in.