LG LSC27914SB Owner's Manual - Page 113
Over cooling in Freezer
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19) Over cooling in Freezer section NO. CHECKING FLOW Check the sensor resistance value in CON 7. 1 2 Enter to TEST MODE 1 (Press once the TEST S/W in Main PCB) Remove Cover PCB, then, check voltage in CON 1 as is shown in the picture. 3 RESULT & SERVICE ACTION Refer to temperature chart for Refrigerator Sensor. Result Service Action Ok Go to Step 2 Abnormal Check Section 3, Abnormal Freezer Sensor. Go to Step 3 Result 110 ~ 127 Vac Other Service Action Normal Change PCB 4 Enter to TEST MODE 2 (Press again the TEST S/W in Main PCB) Check Voltage in CON 1 as is shown in the picture. 5 Go to Step 5 Result 0 ~ 5 Vac Other Service Action Normal Change PCB - 112 -
19) Over cooling in Freezer section
CHECKING FLOW
RESULT & SERVICE ACTION
Check the sensor resistance value in CON 7.
1
2
NO.
5
4
3
Result
Service Action
Go to Step 2
Ok
Abnormal
Check Section 3,
Abnormal Freezer
Sensor.
Refer to temperature chart for Refrigerator Sensor.
Enter to TEST MODE 1 (Press once the TEST S/W
in Main PCB)
Go to Step 3
Remove Cover PCB, then, check voltage in CON 1
as is shown in the picture.
Result
Service Action
Normal
Other
110 ~ 127 Vac
Change PCB
Enter to TEST MODE 2 (Press again the TEST S/W
in Main PCB)
Go to Step 5
Check Voltage in CON 1 as is shown in the picture.
Result
Service Action
Normal
Other
0 ~ 5 Vac
Change PCB
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