| Fault Code | Fault Name |
| Chinese | English |
| Tb | 回水温传故障 | Water In Sensor Err |
| T9 | 出水温传故障 | Water Out Sensor Err |
| A1 | 室内环境温传故障 | Indoor Temp Sensor Err |
| T1 | 室外环境温传故障 | Ambient Sensor Err |
| T2 | 翅片温传故障 | FIN Sensor Err |
| T6 | 排气温传故障 | Exhaust Sensor Err |
| T4 | 吸气温传故障 | Sunction Sensor Err |
| T07 | 蒸发温传故障 | Evaporater SensorErr |
| H4 | 经济器出口温传故障 | Economiser Outlet Sensor Err |
| H3 | 经济器进口温传故障 | Economiser Inlet Sensor Err |
| E05 | 水流开关故障 | Flow Switch Err |
| E13 | 压机高压保护 | Comp High Pressure Protection |
| E14 | 压机低压保护 | Comp Low Pressure Protection |
| E09 | 出水温度过高保护 | Water Out OverHeat |
| E55 | 出水温度过低保护 | Water Out OverLow |
| E03 | 进出水温差过大保护 | Water In/Out Large Temp Diff |
| A61 | 排气温度过高 | Exhaust Temp OverHeat |
| E10 | 翅片温度过高 | Fins Temp OverHeat |
| A94 | 压机驱动掉线 | Compressor Driver Offline |
| T10 | 高压压力传感器故障 | High Pressure Sensor Err |
| FC | 板换制冷防冻 | PHE Antifreeze |
| E57 | 外部输入保护 | External Input Protection |
| E58 | 水压不足保护 | Low Water Pressure |
| E53 | 拨码设置错误 | DIP switch Err |
| E18 | 启动蒸发温度过低 | Start Eva Temp Overlow |
| E15 | 运行蒸发温度过低 | Run Eva Temp Overlow |
| E59 | 内机通讯故障 | IDU Communication Err |
| T8 | 水箱温传故障 | Tank Sensor Err |
| A27 | 太阳能温传故障 | Solar Water Temp Sensor Err |
| E60 | 内机拨码错误 | IDUr DIP Switch Err |
| E61 | IPM过流 | IPM Overcurrent |
| E62 | 压缩机驱动失败 | Compressor Driver Err |
| E63 | 压缩机过电流 | Compressor Overcurrent |
| HJ | 输入电压缺相 | Input Voltage Phase Err |
| E64 | IPM电流采样故障 | IPM Current Sampling Err |
| E65 | 功率部件过热停机 | Power Device Overheat Off |
| E66 | 预充电失败 | Pre-charging Err |
| A82 | 直流母线过压 | DC Bus Overvoltage |
| A81 | 直流母线欠压 | DC Bus Undervoltage |
| HE | 交流输入欠压 | AC Input Undervoltage |
| E67 | 交流输入过流 | AC Input Overcurrent |
| A97 | 输入电压采样故障 | Input Voltage Sampling Err |
| E68 | DSP 与PFC 通讯故障 | DSP&PFC ComErr |
| T12 | 驱动温传故障 | Inverter Sensor Err |
| E69 | DSP 与通讯板通讯故障 | DSP&MCU ComErr |
| E00 | 与主控板通讯异常 | Inverter&ODU ComErr |
| E70 | 压缩机弱磁保护报警 | Compressor Weak Magnetic |
| F71 | 功率部件过热报警 | Power Device Overheat Alarm |
| E16 | 交流输入过电流报警 | AC Input Overcurrent Alarm |
| J7 | EEPROM 故障报警 | EEPROM Err |
| E54 | 水流开关短接保护 | Flow Switch Short Protection |
| E72 | #1风机故障 | #1 Fan Motor Err |
| E73 | #2风机故障 | #2 Fan Motor Err |
| E74 | 太阳能水泵故障 | Solar Pump Err |
| T14 | 缓冲水箱水温传感器故障 | Buffer tank Temp Sensor Err |
| T15 | 热水循环管温传感器故障 | DHW Circulation Pipe Sensor Err |
| T16 | 水压压力传感器故障 | Hydraulic pressure Sensor Err |
| E75 | 水流量计故障 | Water flow detection Sensor Err |
| E76 | 主机线控通讯故障 | ODU&Controller ComErr |
| E77 | 水流量过低保护 | Water flow Overlow |
| E06 | 水压开关保护 | Water Pressure Switch Err |
| T17 | 冷媒传感器故障 | Refrigerant Sensor Err |
| E78 | 冷媒泄露故障 | Refrigerant concentration Alarm |
| T18 | 温区1出水温度故障 | Zone 1 Water Out Temp Sensor Err |
| T19 | 温区2出水温度故障 | Zone 2 Water Out Temp Sensor Err |
| T20 | 温区3出水温度故障 | Zone 3 Water Out Temp Sensor Err |
| T21 | 温区1房间温度故障 | Zone 1 Room Temp Sensor Err |
| T22 | 温区2房间温度故障 | Zone 2 Room Temp Sensor Err |
| T23 | 温区3房间温度故障 | Zone 3 Room Temp Sensor Err |
