Carrier Error Codes
31 Carrier fault codes. Select a code for the meaning, cause and fix.
- E0 Indoor Unit EEPROM Parameter Error
- E1 Indoor/Outdoor Units Communication Error
- E2 Zero-Crossing Signal Detection Error
- E3 Indoor Fan Speed Outside Normal Range
- E4 Indoor Room Temperature Sensor Open/Short
- E5 Evaporator Coil Temperature Sensor Open/Short
- EC Refrigerant Leakage Detected
- F0 Outdoor AC Current Protection
- F1 Outdoor Ambient Temperature Sensor Open/Short
- F2 Condenser Coil Temperature Sensor Open/Short
- F3 Compressor Discharge Temperature Sensor Open/Short
- F4 Outdoor Unit EEPROM Parameter Error
- F5 Outdoor DC Fan Motor Fault
- F8 Compressor Suction Temperature Sensor Fault
- L1 Drive Bus Voltage Overload Protection
- L2 Drive Bus Voltage Over-Low Protection
- L3 Drive Phase Current Overload Fault
- L4 Phase Current Sampling Fault
- P0 IPM Module Fault
- P1 Outdoor Over-High/Over-Low AC Voltage Protection
- P2 Compressor Shell Temperature Overheat Protection
- P4 Compressor Out-of-Step Abnormal
- P5 Compressor Phase Current Protection
- P6 Outdoor Over-High/Over-Low DC Voltage Protection
- P7 IPM Temperature Over Heat Protection
- P8 Compressor Discharge Temperature Overheat Protection
- P9 Cooling Indoor Unit Anti-Freezing Protection
- PC Cooling Outdoor Ambient Temperature Over-Low Protection
- PE Heating Indoor Coil Overheat Protection
- PH Heating Outdoor Ambient Temperature Over-High Protection
- PU Cooling Outdoor Coil Overheat Protection