Hisense Error Codes Home » Error Codes » Hisense Error Codes Search Code or Problem Indoor Unit Error Codes E1 Sensor failure Learn More E3 Temperature sensor error Learn More E4 Communication error Learn More E5 Low refrigerant Learn More E6 Fan motor malfunction Learn More Outdoor Unit Error Codes F1 Outdoor PCB failure Learn More F3 High-pressure protection Learn More F4 Low-pressure protection Learn More
