LG GB7143**AV Series Service Manual page 64

6. Over cooling in Refrigerator compartment
No
1 Check the sensor resistance.
The sensor is determined by
the temperature.
For example, 30
2 Reset the unit and
Input Test 1 Mode.
(Push the button 1 time)
3 Open the refrigerator door and
Check the air flow.
4 Input Test 2 Mode and
Check the air flow.
(Push the button 1 time)
Checking flow
<CON5>
indicates 32°F.
Result & SVC Action
Temperature
23°F / -5°C
32°F / 0°C
41°F / 5°C
50°F / 10°C
59°F / 15°C
Status
Windy
No windy
Status
Windy
No windy
- 64 -
Result
38
30
24
19.5
16
SVC Action
Go to the 4
Check the damper
(Go to the 5)
SVC Action
Go to the 5
It's normal