LG LSC27914SB - Page 87

7) Abnormal Defrost Error
CHECKING FLOW RESULT & SERVICE ACTION
Check the Door Gasket for any abnormality.
Unplug the product, remove Grille Fan assy, and
check the Defrost Control Part.
1
2
NO.
Reset Refrigerator, then, enter to TEST MODE 2
(Press twice TEST S/W on Main PCB.
Check Voltage between Purple to Brown
wires in CON 2.
5
6
Result
Service Action
Fuse-M
Defrost
Heater
Desfrost
Sensor
0 Ù
OFF
Other
Go to Step 3
Go to Step 3
Change Defrost
Controller Assy
48~54 Ù
Change Defrost
Controller Assy
0 Ù
OFF
Go to Step 3
Change Defrost
Controller Assy
Defrost
Heater
Connector
Defrost Controller
Assy connector
Fuse-M
Defrost
sensor
All LED’s ON
Result
Service Action
110~127 V
0 V
Go to Step 5
Replace Main PCB
Release TEST MODE 2 (Press once TEST S/W
on Main PCB)
Check Voltage between Purple to Brown
wires in CON 2.
Result
Service Action
110~127 V
0 V
Explain to customer
Replace Main PCB
4
3
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