LG ARNH08GK3A2 - Manual (Page 13)

Owner's instruction
Owner’s Manual 13 Hydro Kit
ENGLISH
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When the error occurs on indoor unit, the error code will be displayed on remote controller.
Slight trouble
A problem is found inside the indoor unit. In most case, this trouble is concerned with
sensor problems. In this case, Hydro Kit can operate in an emergency mode
(only Heating operation).
Heavy trouble
A problem is found inside the outdoor unit.
Critical error
On critical error, the product will stop unconditionally.
At this time, CH' and error code No. keep display by turns.
Error code display