CHECK AND TEST 1
Step 1
Unscrew cover of mainboard with a Cross-head screwdriver.
Step 2
Check if terminal in PCB
area is pushed 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 the temperature
of freezer air duct, near the
defrost temp. sensor.
Use 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 basket.
Step 3
Remove screw covers.
Step 4
Unscrew.
Step 5
Pull the buttom air duct
out.
Step 6
Disconnect the wires for
thermostat.
Step 7
Take bottom air duct
away.
CHECK AND TEST 2
Step 1
Check if the terminal
is inserted into final
position.
IF NOT, RESINSERT IT.
Step 2
Check if the terminal is
stuffed with foam.
IF SO, USE TWEEZERS TO SMASH IT AND
REMOVE.
Step 3
Check if sensor is
attached in proper
position, as shown in
picture.
If not, correct it.
Step 4
Check if wire of defrost
sensor is broken.
If yes, replace it with a
new one.
Step 5
Disconnect terminal of
defrost temp. sensor.
Step 6
Measure resistance of
defrost temp. sensor
from terminal in freezer,
and take note of it.
Step 7
Measure the temperature of defrost temp. sensor.
Use measured
temperature to find the
standard resistance
value in Temperature-
Resistance Chart for
Sensor.
DIAGNOSIS 2
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
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
Check to see if there is
a wide gap between air
duct and cabinet. If there
is, reinstall air duct.
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