Hisense Inverter AC Error Codes
| Error Code | Description | Solution |
|---|---|---|
| E1 | High-pressure protection | Check refrigerant level, clean outdoor unit, and ensure proper airflow. |
| E2 | Indoor unit coil sensor error | Inspect the coil sensor in the indoor unit; replace it if necessary. |
| E3 | Low-pressure protection | Check for refrigerant leaks and ensure correct pressure in the system. |
| E4 | Compressor discharge temperature error | Check compressor temperature and ensure adequate airflow. |
| E5 | Communication error between indoor and outdoor units | Check communication wiring and connections between indoor and outdoor units. |
| F0 | Indoor temperature sensor error | Inspect the indoor temperature sensor; replace if defective. |
| F1 | Indoor fan speed malfunction | Check the indoor fan motor; repair or replace if necessary. |
| F2 | Outdoor temperature sensor error | Inspect the outdoor temperature sensor; replace if faulty. |
| H3 | Compressor overload protection | Check for compressor overheating; ensure proper airflow and refrigerant levels. |
| H6 | Indoor fan motor malfunction | Inspect the indoor fan motor and replace it if necessary. |
| P0 | Inverter module protection | Check the inverter module; reset or replace it if faulty. |
| P1 | High or low voltage protection | Ensure stable voltage supply; use a voltage stabilizer if required. |
| P4 | Compressor drive error | Inspect the compressor drive; reset or replace the drive if necessary. |
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