| Error Code  |    Error contents | 
| Indoor Unit | |
| A0 | Operation of protective uinit | 
| A1 | Printer circuit board error | 
| A3 | Drain level (33H) error | 
| A6 | Fan motor locking , overload | 
| A7 | Swing flap motor (MIS) error | 
| A9 | Electronic expansion valve driver unit (Y1E) error | 
| AF | Drain level (33H) error (Indoor uinit is stopping ) | 
| AJ | Capacity setting error | 
| C4 | Liquid pipe thermistor (R2T) error | 
| C5 | Gas pipe themistor(R3T) error | 
| C9 | Suction air thermistor (RiT) error | 
| CJ | Remote contronler thermistor error | 
| Oudoor Unit | |
| E0 | Operation of protective uinit | 
| E1 | Printer circuit board error | 
| E3 | operation of high pressureswitch | 
| E4 | operation of low pressureswitch | 
| E9 | Electronic expansion valve driver unit (Y1E) error | 
| H3 | High pressure switch error | 
| H4 | operation of low pressureswitch | 
| H9 | Outdoor air thermistor (R1T) error | 
| J1 | Pressure sensor error | 
| J3 | Discharge pipe themistor (R3T) error | 
| J5 | Suction pipe themistor (R3T) error | 
| J6 | Heat exchanger thermistor (R3T) error | 
| JA | Discharge pipe pressure sensor error | 
| JC | Suction pipe pressure sensor error | 
| JH | Oil thermistor error | 
| L0 | Inverter error | 
| L4 | Inverter cooling error | 
| L5 | Short-circuit in compressor motor ,short-circuit in power unit | 
| L8 | Short-circuit in compressor motor ,short-circuit | 
| L9 | Locking in compressor | 
| LA | Power unit error | 
| LC | Transmission in compressor | 
| P1 | Voltage unbalance ,open phase | 
| P4 | Power unit temperature sensor error | 
| System error | |
| U0 | Pressure   drop due to insufficient refrigerant electronic  expansion valve  |   
| U1 | Peverse phase ,open phase | 
| U2 | Voltage error ,instantaneous power interruption | 
| U4 | Transmission error between indoor unit and outdoor /Bs unit | 
| U5 | Transmission error between remote contronller an indoor unit | 
| U5 | Printer circuit board error or setting error of remote contronller | 
| U7 | Transmission   error between outdoor unit  (unified    cooling/heatting ,low noise operation)  |   
| U8 | Transmission   error between remote contronller and  sud remote contronller  |   
| U9 | Transmission error between another indoor unit and outdoor unit within same system | 
| UA | Conbination   error of indoor unit /BS unit /outdoor unit  Conbination error of indoor unit /remote contronller Connected location error of BS unit  |   
| UC | Address duplication of center remote controller | 
| UE | Transmission   erroe between indoor unit and center remote  contronller  |   
| UF | Wiring circuit does not corepond to refrigerant circuit | 
| UH | Miss wiring | 
Ks. Nguyễn Hữu Phú
Cty cổ phần cơ điện lạnh  Đại Việt
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