| Communication failure | Flash 5 times and go out 2S | Flash 2 times and go out2S | F1 | 1 | Stop |
| Wired controller communication failure | – | – | E5 | 1 | Stop |
| Drainage system failure | Flash 4 times and go out 2S | – | E4 | 3 | Stop |
| Outdoor protection( Phase failure ) | Flash6 times and go out 2S | – | E6 | 2 | Stop |
| Outdoor protection (discharging over- | Flash 10 times and go out 2S | Flash 10 times and go out2S | EA | 7 | Stop |
| High pressure protection | Flash 9 times and go out 2S | Flash 1 times and go out2S | E9 | 6 | Stop |
| Low pressure protection | Flash 9 times and go out 2S | Flash 3 times and go out2S | E9 | 6 | Stop |
| Indoor temp. sensor abnormal(TA) | Flash 1 times and go out 2S | – | E1 | 4 | Stop |
| Indoor coil sensor abnormal(TE) | Flash 3 times and go out 2S | – | E3 | 5 | Stop |
| Outdoor coil sensor abnormal(TW) | Flash 2 times and go out 2S | Flash 2 times and go out2S | E2 | 8 | non-stop |
| Outdoor condenser temp. Sensorabnormal(TL) | Flash 7 times and go out 2S | Flash 7 times and go out2S | E7 | 9 | non-stop |
| Discharging temp. sensor abnormal(TP) | Flash 8 times and go out 2S | Flash 8 times and go out2S | E8 | 10 | non-stop |
| Refrigerant shortage | Flash 11 times and go out 2S | Flash 11 times and go out2S | E0 | 11 | Stop |
| Defrosting temperature | Running lights | – | / | 12 | non-stop |
| sensor is abnormal | blinking |
