中文
含义
E4 为室外盘管温度传感器故障。该传感器位于室外机冷凝器盘管上，检测冷凝温度用于系统控制及保护。
常见原因
- 室外盘管传感器热敏电阻损坏
- 传感器连接线在室外环境中老化断裂
- 传感器插头氧化或进水
- 传感器检测电路故障
自助排查
- 断电后检查室外机盘管上的传感器外观
- 检查连接线和插头是否完好
- 测量传感器阻值
- 如传感器损坏，更换同型号传感器
- 更换后仍报故障，联系奥克斯售后
English
Meaning
Outdoor coil temperature sensor fault. The sensor on the outdoor condenser coil measures condensing temperature for system control and protection.
Common Causes
- Outdoor coil thermistor damaged
- Sensor wire aged/broken due to outdoor exposure
- Sensor connector oxidized or water ingress
- Detection circuit fault
Self-Check Steps
- Power off and inspect outdoor coil sensor appearance
- Check wiring and connector for damage
- Measure sensor resistance
- If sensor is damaged, replace with same type
- If fault persists, contact AUX after-sales service