Certainly, here is a table with common Daikin air conditioner error codes and their potential meanings:
| Error Code | Description |
|---|---|
| A1 | Indoor PCB defect |
| A3 | Indoor fan motor malfunction |
| A5 | Freeze protection |
| A6 | Fan motor locked or overcurrent |
| A7 | Swing motor malfunction |
| A9 | Drain pump malfunction |
| E0 | Refrigerant system high pressure abnormality |
| E1 | Refrigerant system high pressure cut-off |
| E2 | Refrigerant system low pressure abnormality |
| E3 | Refrigerant system low pressure cut-off |
| U0 | Compressor overcurrent or overheat |
| U2 | Power supply insufficient or instantaneous drop |
| U4 | Short circuit (excessive current) |
| U5 | Power supply frequency detection |
| U7 | Abnormal power supply voltage |
| U9 | Communication malfunction between indoor and outdoor units |
| Error Code | Description |
|---|---|
| A0 | External protection devices activated |
| A2 | Room temperature sensor malfunction |
| A4 | Drain sensor malfunction |
| A8 | Indoor heat exchanger temperature sensor malfunction |
| E4 | Inverter compressor motor overcurrent |
| E5 | Overcurrent protection in electronic expansion valve |
| E6 | Signal transmission error (indoor to outdoor unit) |
| E7 | Signal transmission error (outdoor to indoor unit) |
| E8 | Refrigerant overcharge |
| E9 | Refrigerant shortage |
| EE | High discharge temperature protection |
| F3 | Outdoor discharge air temperature sensor malfunction |
| F6 | Outdoor ambient temperature sensor malfunction |
| H3 | Compressor discharge temperature sensor malfunction |
| H6 | Compressor suction temperature sensor malfunction |
| H8 | High-temperature protection of electronic expansion valve |
Always consult your Daikin user manual or contact Daikin customer support for precise troubleshooting steps based on the specific error code you encounter.