LG LTNS16121V /00 Service Manual page 54

- Excesive cooling on refrigerator section
No Checking
Check if there's a connector loose on CON8.
1
Unplugged the refrigerator and all the PCB
2
connectors, check the resistance between
white wires for CON8.
1. Connect the refrigerator.
3
2. Remove the PCB cover and start Test
Mode 1 (press once the button on PCB).
1. Open the freezer door.
4
2. Press manually the door switch.
3. Check the air flow.
Result and SVC countermeasure
Result
Connected
Loose
Result
0
Short
Refer to "Refrigerator Sensor Error"
section.
OFF
Open
1. Check temperature and resistance (see
chart of section 7-2).
2. Check the box corresponding to the
temperature of the resistance by the
Other
value (see "R" in the sensor graphic).
Normal
Value
3. Check if the equivalent temperature
matches with the real temperature of
the compartment.
Go to step 3.
Result
Air Flow
No air flow No normal
54
SVC Support
Go to step 2.
Connect firmly and check again.
Is there a problem?
Yes: Go to step 2.
No: Explain to customer.
SVC Support
SVC Support
Normal Go to step 5
Replace PCB