CHECK AND TEST 1
Step 1
Unscrew cover of
mainboard with a
cross-head screwdriver.
Step 2
In mainboard area, check if terminal is pushed into proper final position.
Step 3
In mainboard area, check if terminal is filled with foam.
Step 4
If so, use tweezers to
remove foam.
Step 5
Reworking methods for failed tests.
DIAGNOSIS 1
CHECK AND TEST 2
Step 1
Turn power output of transformer to DC 12V.
Step 2
Supply power from terminal in PCB area (FAN & GND).
DIAGNOSIS 2
PROCEDURE 1
Step 1
Remove the upper freezer drawer.
Step 2
Remove the upper freezer drawer. Remove the upper freezer drawer.
Step 3
Remove the middle glass shelf located between upper and bottom freezer drawer compartments.
Step 4
Unscrew air duct.
Check the freezer air
duct to find the three
screw covers.
Step 5
Remove the screw covers (total of three) on the air duct with slotted screw driver.
Step 6
Unscrew all three screws with Cross-head screw driver.
Step 7
Dismantle the air duct.
Catch the bottom of air
duct.
Step 8
Pull air duct out from the bottom of air duct.
Step 9
Pay attention to the connectors when pulling out the air duct.
Tip 1
When re-installing the air duct, move the wires out of the way so that they won’t be crushed by air duct.
Tip 2
After pushing air duct into position, it should make a click sound. If no click is heard, do it again.
CHECK AND TEST 2
Step 1
In duct area, check if terminal is pushed into final position.
Note
A & C are not OK; B is OK..
Step 2
Check if terminal is filled with foam or not.
IF YES, please use a needle to clean and remove the foam.
Later, reconnect the terminals
Power off the appliance and turn the power output of transformer to DC 12V.
Step 4
Supply power from terminal in PCB area.
DIAGNOSIS 2
CHECK AND TEST 3
Step 1
Check to see if wires are damaged or not.
Step 2
Check to see if the wires
are in the correct order
and their connections in
the foam are correct:
1. Set multimeter to
resistance gear;
2. Put detector into one end of wires in PCB area;
3. Put another detector into end of wires behind air duct.
DIAGNOSIS 3
DIAGNOSIS 4
PROCEDURE 2
Step 1
Cut wire off.
Step 2
Peel off the sleeves.
Step 3
Check to ensure proper wire order and connect them.
Step 4
Tin soldering.
Step 5
Cover connection with electrical tape.
CHECK AND TEST 4
Step 1
Set output of transformer to DC 12V to test fan from the terminal behind the air duct.
Step 2
Use power source to test fan from terminal in the back of air duct.
DIAGNOSIS 5
Note
PROCEDURE 3
Tip 1
When re-installing the air duct, move the wires out of the way so that they won’t be crushed by air duct.
After pushing air duct into position, it should make a click sound. If no click is heard, do it again.
CHECK AND TEST 5
Step 1
Open fridge door and freezer drawer, press the mechanical switch.
DIAGNOSIS 6
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