| Error Code |
Description |
Solution |
| U0 |
Low refrigerant in the system |
Check for refrigerant leaks and recharge the system with the correct amount of refrigerant. |
| U2 |
Power supply problem |
Ensure the power supply is stable; check for voltage fluctuations or power failures. |
| U4 |
Communication error between indoor and outdoor units |
Inspect the communication wiring between the units; repair or replace if necessary. |
| EA |
Outdoor unit malfunction |
Check the outdoor unit for issues such as fan malfunction or compressor failure. Repair or replace faulty components. |
| J6 |
Compressor overload |
Check the compressor for overheating; inspect for any obstructions in airflow or excessive load on the compressor. |
| L5 |
Inverter drive error |
Inspect the inverter drive and motor; reset or replace the inverter if it is faulty. |
| P1 |
High pressure in the system |
Inspect for blockages in the refrigerant line and ensure proper ventilation for the outdoor unit. |
| P4 |
Overheating of the compressor |
Check for proper ventilation and clean the air filters; reduce the compressor load if necessary. |
| P9 |
Outdoor air temperature sensor error |
Inspect the outdoor temperature sensor; replace if it is malfunctioning. |
| C9 |
Indoor air temperature sensor error |
Check the indoor temperature sensor; replace if necessary. |
