LG LSC27914SB - Page 116

21) Door open alarm never stops
CHECKING FLOW RESULT & SERVICE ACTION
Open refrigerator door, then, check manually the
door S/W movement.
1
2
NO.
5
4
3
Remove cover hinge in refrigerator door, check the
measurement in Door S/W DC part as is shown in
the picture.
Open freezer door, then, check manually the door
S/W movement.
If problem persist, disconnect from Main PCB CON 6
and CON 7, then, disconnect from both door S/W.
Proceed to check resistance value in the mentioned
measurement points.
Check the result.
Else, explain to customer.
Result
Service Action
Replace Door S/W
Tight movement
Free movement
Go to Step 2
Result
Service Action
Released
Check in released mode
5 Vdc
Other
Replace PCB
Pressed
Go to Step 3
0 Vdc
Other
Replace PCB
Result
Service Action
Replace Door S/W
Tight movement
Free movement
Go to Step 4
Remove cover hinge in freezer door, check the
measurement in Door S/W DC part as is shown in
the picture.
Result
Service Action
Released
Check in released mode
5 Vdc
Other
Replace PCB
Pressed
Go to Step 6
0 Vdc
Other
Replace PCB
Result
Service Action
F-Door
S/W
connector
Replace product
0Ù
OFF
Replace PCB
R-Door
S/W
connector
Replace product
Replace PCB
0Ù
OFF
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