LG LFX28992 Series Service Manual page 42

9-8 Over cooling in Refrigerator room
No
1 Check the R Sensor resistance.
<CON7>
The R 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 Refrigerator room door and Check
the air flow.
4 Input Test 2 Mode and
Check the air flow.
(push the button 1 more time)
5 Check the damper resistance.
(3)
(2)
Checking flow
indicates 32°F.
(1)
(4)
Result & SVC Action
Temperature
23°F
32°F
41°F
50°F
59°F
Status
Windy
No windy
Status
Windy
No windy
Test
Point
270 ~ 330
(1) To (2)
270 ~ 330
(3) To (4)
- 42 -
Result
°C 38
°C 30
°C 24
°C 19.5
°C 16
SVC Action
Go to the 4
Check the R Fan Check
the damper (Go to the 5)
SVC Action
Go to the 5
It's normal
Result SVC Action
It's normal
Change damper
Other
It's normal
Change damper
Other