| Error Code |
Description |
Solution |
| E1 |
Indoor unit temperature sensor error. |
Check the indoor temperature sensor for proper connection. Replace the sensor if faulty. |
| E2 |
Outdoor unit temperature sensor error. |
Inspect the outdoor temperature sensor and its connections. Replace if necessary. |
| E3 |
Indoor unit communication error. |
Ensure wiring between the indoor and outdoor units is secure. Check control board if needed. |
| E4 |
Outdoor unit communication error. |
Check for loose connections or damage in wiring between the units. |
| E5 |
Refrigerant leakage detected. |
Contact a technician to locate and repair the leak, then recharge the system. |
| E6 |
High-pressure protection. |
Check for blockages in refrigerant lines or compressor malfunction. |
| E7 |
Low-pressure protection. |
Inspect for leaks and refill refrigerant as needed. |
| E8 |
Evaporator temperature sensor error. |
Check the evaporator sensor for functionality. Replace if damaged. |
| E9 |
Indoor unit drain overflow. |
Check the drain pan and line for clogs. Clean out any debris. |
| E10 |
Sensor failure in the indoor unit. |
Inspect for issues and replace the sensor if necessary. |
| E11 |
Sensor failure in the outdoor unit. |
Check outdoor temperature sensor for functionality. Replace if required. |
| E12 |
System protection mode activated. |
Allow the unit to cool down and reset. |
| E13 |
Compressor overload. |
Check airflow and blockages. Consult a technician if error persists. |
| E14 |
Voltage fluctuation. |
Ensure stable power supply; consider using a voltage stabilizer. |
| E15 |
Display communication error. |
Check loose connections between display and control board. |
| E16 |
Fan motor malfunction. |
Inspect fan motor; repair or replace if necessary. |
| E17 |
Low refrigerant level. |
Inspect for leaks and recharge system as needed. |
| E18 |
High-temperature protection. |
Check for direct sunlight exposure and ensure airflow is unobstructed. |
