LG LFXS32726 Series, Service Manual

Page: 85 / 110

- 85 -
11. Compressor Troubleshooting
Test Mode
Troubleshooting
- Simple Check Sequence
LED blinks
1 times
LED blinks
2 times
LED blinks
7 times
Replace
the PCB
Reset
Reset
Does the comp.
operate?
Reset Replace
the PCB
N
Is there
leakage?
Recheck
Major
repair
Y
Y
N
LED blinks
6 times
Replace the
comp.
Reset Does the comp.
operate?
N
Is there
leakage?
Recheck
Major
repair
Y
Y N
Does the
LED blink?
Does the comp.
operate?
IPM output
>
80V-20%
Replace
the PCB
N
N
Is there
leakage?
Major
repair
Y
Y
Y
N
N
No cool
air?
Recheck
Reset
Recheck
Is the harness
OK?
Is the comp.
OK?
Is the comp.
OK?
Y N
Repair harness
N
Is the comp.
OK?
N
N
Y
※
Record: Record the number of LED
blinks on the failure label
sheet.
※
Send the number of LED blinks to
PDA after taking appropriate
measures.
LED blinks
8 times
Replace
the PCB
Reset
LED blinks
1 times
LED blinks
7 times
LED blinks
2 times
LED blinks
6 times
LED blinks
8 times
LED blinks
3 times
Reset
LED blinks
3 times
Re
co
rd
Re
co
rd
Re
co
rd
Re
co
rd
Re
co
rd
Re
co
rd
Ref.
Comp
FLD090LANA(A-Inverter)
Refer
TEST1
Forced Starting TDC (Full Stroke)
Display & sound
Display ON, Buzz 1 time