lg LS-Q096BUL Fault Please Help

[wozzer]

Hi guys :
new to forum can anybody help
I have turned the power of to my LG inverter air con a few times and now will not come back on.
nothing happens at the wall unit even though i have power there.
i have looked at the external compressor and the only thing that happening is there is a LED 01lem flashing 5 times does anybody know what that is, could it be pressure ?
thanks in advance :confused::confused::confused::confused::confused:

[narka]

hi wozzer.about your question.5 blinks of led 01m in o\u.this is communication error(serial signal) beetwin o\u -i\u. b.r.

[wozzer]

many thanks
i will check the cabling