| Error Code |
Description |
Solution |
| E1 |
Indoor temperature sensor error. |
Check the indoor temperature sensor connection. Replace it if it is malfunctioning. |
| E2 |
Outdoor temperature sensor error. |
Inspect the outdoor temperature sensor and its connections. Replace if necessary. |
| E3 |
Communication error between indoor and outdoor units. |
Ensure the wiring between the indoor and outdoor units is secure and undamaged. Check the control board if issues persist. |
| E4 |
High-pressure protection. |
Check for blockages in the refrigerant lines or compressor issues. Ensure proper airflow around the unit. |
| E5 |
Low-pressure protection. |
Inspect the refrigerant level and check for leaks in the system. Recharge refrigerant if necessary. |
| E6 |
Refrigerant leakage detected. |
Contact a technician to locate and repair any leaks, then recharge the refrigerant. |
| E7 |
Evaporator temperature sensor error. |
Check the evaporator temperature sensor for functionality. Replace it if it’s faulty. |
| E8 |
Compressor overload. |
Ensure there are no blockages affecting airflow. Consult a technician if the error continues. |
| E9 |
Drain overflow. |
Inspect the drain pan and line for blockages. Clear any debris to allow proper drainage. |
| E10 |
System protection mode activated. |
Allow the unit to cool down and reset. |
| E11 |
Inverter communication error. |
Check communication wires between the inverter and control board. Ensure all connections are secure. |
| E12 |
Indoor fan motor malfunction. |
Inspect the indoor fan motor for operation. Replace if it’s not working correctly. |
| E13 |
Outdoor fan motor malfunction. |
Check the outdoor fan motor. If it’s not operating, repair or replace as needed. |
| E14 |
Ambient temperature sensor error. |
Inspect the ambient temperature sensor and ensure it is connected properly. Replace if faulty. |
| E15 |
High discharge temperature. |
Check for refrigerant overcharge or airflow issues. Resolve any blockages in the system. |
| E16 |
Low discharge temperature. |
Inspect the system for undercharge issues or compressor problems and recharge if needed. |
| E17 |
System overload protection triggered. |
Allow the unit to cool down and check for any obstructions affecting airflow. |
| E18 |
Defrosting failure. |
Check the defrost sensor and heater. Ensure they are functioning correctly, and replace them if necessary. |
| E19 |
Power supply error. |
Inspect the power supply for stability and proper voltage. Ensure all electrical connections are secure. |
| E20 |
Control board malfunction. |
Check for visible damage on the control board and consider replacing it if necessary. |
| E21 |
Unit not responding to remote control. |
Ensure the remote control batteries are functional. Check for obstacles blocking the signal. |
| E22 |
Air flow obstruction detected. |
Inspect air filters and clear any debris around the unit. |
| E23 |
Compressor communication error. |
Check the wiring and connections between the compressor and control board. Replace any damaged wires. |
| E24 |
Low refrigerant warning. |
Inspect for refrigerant leaks and recharge the system if necessary. |
| E25 |
High refrigerant temperature. |
Check for refrigerant overcharge or compressor issues. Ensure condenser coils are clean. |
