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 freezer drawers.
Step 2
Remove all glass shelves.
Step 3
Unscrew the screws on
air duct.
a. Check the freezer air
duct to find the three
screw covers.
b. Remove the screw
covers (total of three)
on the air duct with
slotted screw driver.
c. Unscrew the screws (total three) with Cross-head screw driver.
Step 4
Dismantle the air duct.
a. Catch the bottom of
air duct and pull down
the air duct.
b. Pay attention to the connectors when pulling out the air duct.
c. Disconnect the
terminal for fan motor.
Disconnect the
terminal for freezer
temp. sensor.
d. Move the air duct out of the freezer compartment.
CHECK AND TEST 2
Step 1
Check if terminal is inserted to final position.
Step 2
Check if the terminal is stuffed with foam.
Step 3
Measure resistance of freezer temp. sensor from terminal in freezer air duct cover.
Step 4
Take note of value.
Step 5
Measure temperature of freezer temp. sensor. Use the measured temperature to find the standard resistance value in Temperature- Resistance Chart for Sensor.
DIAGNOSIS 2
Note
CHECK AND TEST 3
Step 1
Set multimeter to resistance gear.
Step 2
Put detector into one
end of wires in PCB area.
Put another detector into
end of wires behind air A
duct.
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
Install the top side first when installing the air duct.
Tip 4
After pushing air duct into place, you should hear a clicking sound. If not, repeat again.
Tip 5
Check to see if there is
a wide gap between air
duct and cabinet. If there
is, reinstall air duct.
CHECK AND TEST 4
DIAGNOSIS 5
GO BACK TO COMPONENT LIST