中文
含义
E9 为 PFC（功率因数校正）保护。PFC 电路检测到过流、过压或模块温度过高时触发保护。
常见原因
- 电网电压波动过大
- PFC 电感异常
- PFC IGBT 模块过热
- PFC 控制电路故障
- 负载突变导致 PFC 输出异常
自助排查
- 检查电源电压是否稳定，排除电网问题
- 断电后重启空调
- 检查 PFC 散热是否良好
- 如频繁出现，测量 PFC 电路主要元件
- 联系奥克斯售后安排检修
English
Meaning
PFC (Power Factor Correction) protection triggered by overcurrent, overvoltage, or module overheat.
Common Causes
- Mains voltage fluctuation
- PFC inductor abnormal
- PFC IGBT module overheat
- PFC control circuit fault
- Sudden load change causing PFC output anomaly
Self-Check Steps
- Check if mains voltage is stable
- Power cycle the unit
- Check PFC heat dissipation
- If frequent, measure key PFC components
- Contact AUX service for inspection