LG LS-J0762Y / S07LHN Service Manual ▷ View online
-60-
When compressor does not oprate normally.
■
CT Error (Error Code
➆
)
Trouble 7-3
Does the operating LED in Display PCB
Ass'y blink 7 times?
Ass'y blink 7 times?
• Check the state of connecting cable
(3 line) bewteen Indoor and Outdoor Unit .
• Check fuse, Noise Filter, PTC, etc.
NO
YES
Is the courrent transformer(CT) in Main
PCB Ass'y right?
PCB Ass'y right?
Check the PCB pattern(resoldering)
NO
YES
Is the indoor/outdoor fan locked?
Check the indoor/outdoor fan motor.
NO
YES
Is the discharge temperature of Indoor unit
right(11°C~17°C) in the cooling mode?
right(11°C~17°C) in the cooling mode?
Check the compressor.
NO
YES
Is the refrigerant pressure right?
Supply the refrigerant
NO
YES
Replace the PCB Ass'y.
• Main PCB Ass'y(Outdoor)
• Control Box Ass'y(Outdoor)
• Control Box Ass'y(Outdoor)
-62-
Electronic Control Device
(1) MAIN PCB ASS'Y(INDOOR)
TOP VIEW (AC PART)
BOTTOM VIEW (AC PART)
TOP VIEW (DC PART)
BOTTOM VIEW (DC PART)
PCB ASS'Y SVC PART LIST: 6871A10068G (7K_YL Series)
6871A10068T (7K_NN Series)
6871A10068J (12K_YL Series)
6871A10068V (12K_NN Series)
6871A10068L (9K_UL Series)
6871A10068M (12K_UL Series)
6871A10068J (12K_YL Series)
6871A10068V (12K_NN Series)
6871A10068L (9K_UL Series)
6871A10068M (12K_UL Series)
PCB ASS'Y SVC PART LIST: 6871A10067B
(2) MAIN PCB ASS'Y(OUTDOOR)
-63-
PCB ASS'Y SVC PART LIST : 6871A20192G (7K_Series)
6871A20192J (12K_Series)
6871A20192L (9K_Series)
6871A20192M (12K_Series)
6871A20192L (9K_Series)
6871A20192M (12K_Series)
TOP VIEW
BOTTOM VIEW
}
}
}
AC
DC
-64-
(3) DISPLAY ASS'Y
_YL, _UL Series
TOP VIEW
TOP VIEW
BOTTOM VIEW
PCB ASS'Y SVC PART LIST: 6871A20223A (_YL Series)
6871A20254A (_UL Series)
_NM, _NN Series
TOP VIEW
TOP VIEW
BOTTOM VIEW
PCB ASS'Y SVC PART LIST: 6871A30009U
Click on the first or last page to see other LS-J0762Y / S07LHN service manuals if exist.