LG LXFS28596 Series, Service Manual

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Troubleshooting
Check Comp.
Y
N
PCBA Output
> 60V?
N
Check
Cycle leakage
N
Y
Y
Troubleshooting
- Simple Check Flow Chart
LED 7 Blinks
LED 2 Blinks
LED 1 Blinks
Replace PCB
Comp.
Action?
Replace PCB
Y
LED 6 Blinks
Comp.
Action?
LED Blinking?
Comp.
Action?
PCBA Output
> 60V
Replace PCB
N
N
Y
N
Not Cooling
Harness
wiring?
Y
Repair Harness
N
Y
LED 8 Blinks
Replace PCB
Reset
LED 7 Blinks
LED 1 Blinks
LED 2 Blinks
LED 6 Blinks
LED 8 Blinks
LED 3 Blinks LED 3 Blinks
LED 5 Blinks
Comp.
Action?
LED 5 Blinks
Check
Comp.
Check Comp.
Check the Comp.
Test Mode
1 Input
About 5min Check
Cycle leakage
Check
Cycle leakage
Check
Cycle leakage
About 5min
About 5min
About 5min
About 5min
About 5min
About 5min
About 5min
LED 4 Blinks
Replace PCB
LED 4 Blinks
About 5min
Reset
Reset
Reset
Reset
Reset
Reset
Reset
Test Mode
1 Input
Test Mode
1 Input
Test Mode
1 Input
Test Mode
1 Input
Test Mode
1 Input
Test Mode
1 Input
Test Mode
1 Input
Test Mode
1 Input
PCBA Output
> 60V
Replace PCB
Replace PCB
Y
N
Y
N
LED Trip Information
1
Current/Voltage Sensing
Error
2 Over Stroke
3 Comp Connection Error
4 Over Voltage Error
5 Comp Lock Error
6 Over Current Error
7 IPM Error
8 Communication Error
* Transmits LED blinking number to PDA after completing action
12.Compressor Trouble Shooting
- COMP Operation Error LED Check
① ②
1. Open the PCBA Cover 2. Check the number of LED blinks
(Refer to the next page for resolution
by number of LED blinks)
3. When the COMP is normal,
it will not blink
When the COMP & FAN are not operating simultaneously, force operate from the Main PCB in TEST MODE to check whether it is operating
and then check the power of the COMP end to reset the power.