LG GBB530***F Series Service Manual page 28

COMPRESSOR
Protection Blink 7 times
logic (Lock Piston Trip)
Check B
Compressor
Doesn't work
8) LED blinks eight times, then repeats (Communication Error)
Blink
• Communication Error : When same trip occurs after power reset,
change PCB.
Because Program is not matching in MICOM, program has to be
rewritten or PCB has to be changed.
Check B5
Y
N
Power
Reset
Blink Blink Blink Blink
Blink Blink
Blink
Check IPM
visual inspection
Compressor
Damage
Check C3
OFF
- 28 -
Short
N
Replace
Test
Drive PCB
Point A
Y
Repeat
Check Procedure
Y
NG
Replace
Compressor