中文
含义
A5 为防冻结保护。室内换热器温度过低,系统启动保护防止盘管结冰。
常见原因
- 空气过滤网堵塞导致风量不足
- 风机转速异常
- 制冷剂不足
- 室内环境温度过低
自助排查
- 清洗室内机过滤网
- 检查风机是否正常运转
- 如频繁出现需专业人员检查系统压力
English
Meaning
Anti-freeze protection. Indoor heat exchanger temperature too low.
Common Causes
- Clogged air filter reducing airflow
- Abnormal fan speed
- Low refrigerant charge
- Low indoor ambient temperature
Self-Check Steps
- Clean indoor unit air filter
- Check fan operation
- If frequent, have system pressure checked professionally