中文
含义
U8 为集中控制通讯故障。空调系统与集中控制器之间通讯异常。
常见原因
- 集中控制器连接线松动
- 集中控制器设置错误
- 通讯线路过长信号衰减
自助排查
- 检查集中控制器连接
- 检查集中控制器设置
- 确认通讯线规格符合要求
English
Meaning
Central control communication fault. Communication abnormal between AC system and central controller.
Common Causes
- Central controller wire loose
- Central controller config error
- Signal attenuation on long communication line
Self-Check Steps
- Check central controller connections
- Verify controller settings
- Confirm communication line meets specifications