中文
含义
L4 为散热器温度异常。变频器散热器温度过高。
常见原因
- 散热器风扇不转
- 散热片积灰
- 室外环境温度过高
- 变频器负载过大
自助排查
- 清洁散热器
- 检查散热风扇
- 改善通风条件
English
Meaning
Radiator temperature fault. Inverter heat sink temperature too high.
Common Causes
- Radiator fan not spinning
- Dust buildup on fins
- High ambient temperature
- Inverter overload
Self-Check Steps
- Clean the radiator
- Check cooling fan
- Improve ventilation