➽An F2 error code occurs when there is an issue with the temperature sensors or a malfunction with the boards.
➽You can review the attached PDF to diagnose and pinpoint the defective parts.
➽An E5 error code occurs when there is an issue with the temperature sensors or a malfunction with the boards.
➽You can review the attached PDF to diagnose and pinpoint the defective parts.
➽An E4 error code occurs when there is an issue with the temperature sensors or a malfunction with the boards.
➽You can review the attached PDF to diagnose and pinpoint the defective parts.
➽An E3 error code indicates that the fan on the outdoor or indoor unit has been running at a very low speed for a set period of time. This occurs when either the controller on the board or the fan malfunctions.
➽You can review the attached PDF in order to diagnose and pinpoint the root cause of the problem.
➽An E2 error code occurs when the indoor board malfunctions or the there is an issue with the wiring connections.
➽You can review the attached PDF on how to diagnose the problem.
➽ An E1 error code indicates that is a communication issue between the indoor and outdoor units. This occurs either when one of the boards malfunctions or when the communication wiring between the indoor and outdoor unit has been connected incorrectly.
➽ You can refer to this guide in our FAQ section on how to properly wire the indoor and outdoor units. If the units have been wired correctly, then in order to identify which board is malfunctioning, you can review the attached PDF on how to test out the boards.
➽ An E0 F4 error code indicates that one of the boards, indoor or outdoor, have failed and will have to be replaced.
In order to identify which of the two boards need to be replaced, you can review the attached documents on how to test out the boards.
➽ An F1 error code occurs when there is an issue with the temperature sensors or a malfunction with the boards.
➽ You can review the attached PDF to diagnose and pinpoint the defective parts.
➽A P4 error code is caused by an error in the compressor drive. This error code is could be caused by a faulty outdoor board, a faulty outdoor fan motor or a compressor malfunction.
| Error Codes | Problem |
|---|---|
| EE | Indoor machine EE fault |
| E0 | Outdoor EE fault |
| E1 | Indoor fan fault |
| E2 | Indoor fan zero-crossing detection abnormal |
| E3 | Indoor coil fault and sensor fault |
| E4 | Indoor ambient temperature sensor fault |
| E5 | Fan Operation Error |
| E6 | Indoor and outdoor machine communication fault |
| E8 | Outdoor communication fault |
| F1 | Compressor starting abnormal |
| F2 | Compressor out of step fault |
| F3 | IPM module fault |
| F4 | Compressor shell roof fault/protection |
| F5 | Discharge temperature sensor fault |
| F6 | Section temperature sensor fault |
| F7 | Outdoor coil temperature sensor fault |
| F8 | Outdoor ambient temperature sensor fault |
| F9 | Outdoor DC fan fault |
| P1 | Outdoor machine AC current protection |
| P2 | Compressor phase current protection |
| P3 | Outdoor unit over-high or over-low AC voltage protection |
| P4 | DC voltage over-high or over-low voltage protection |
| P5 | IPM over-high temperature protection |
| P6 | Discharge temperature overheat protection |
| P7 | Cooling indoor coil anti freezing protection |
| P8 | Cooling outdoor coil overheat protection |
| P9 | Heating indoor coil overheat protection |
| PC | Cooling outdoor ambient temperature over-low protection |
| PH | Heating outdoor ambieent temperature over-high protection |
| L1 | Drive bus voltage over-high protection |
| L2 | Drive bus voltage over-low protection |
| L3 | Drive phase current overload fault |
| L4 | Phase current samping abnormal |
| U1 | IPM Over current protection |
| U3 | Compressor Over current protection |
| U4 | Over voltage protection |
| U5 | Low voltage protection |
| U7 | Over speed protection |
