中文
含义
制冷剂泄漏/系统压力异常。系统检测到制冷循环中的压力或温度参数表明制冷剂严重不足，可能由于管路泄漏或安装不当所致。
常见原因
- 管路喇叭口连接处长期振动导致接头松动
- 铜管在穿墙处被磨穿或折扁
- 室内机或室外机截止阀阀芯密封圈老化漏气
- 蒸发器或冷凝器铜管被空调清洗剂腐蚀穿孔
- 安装时扩口制作不规范，密封面不足
自助排查
- 倾听室内机和室外机管路连接处是否有明显的”嘶嘶”漏气声
- 用肥皂水涂抹所有可触及的管路接头，观察是否有气泡
- 用电子检漏仪沿管路走向仔细检查
- 若确认漏点，必须回收剩余制冷剂、修复漏点、抽真空后重新充注
English
Meaning
Refrigerant leak / system pressure anomaly. The system detects that the refrigerant pressure or temperature parameters indicate severely low refrigerant charge, likely due to a pipe leak or improper installation.
Common Causes
- Flare nut joint loosened by prolonged vibration of the refrigerant pipe
- Copper pipe worn through or kinked at the wall pass-through point
- Aged seal ring on the indoor or outdoor unit service valve core
- Copper pipe pinhole corroded by AC coil cleaning chemicals
- Poorly formed flare during installation with insufficient sealing surface
Self-Check Steps
- Listen for hissing sounds at the indoor and outdoor pipe connections indicating a gas leak
- Apply soap solution to all accessible pipe joints and look for bubbles
- Trace the entire pipe run with an electronic leak detector
- If a leak is confirmed, recover remaining refrigerant, repair the leak, evacuate the system, and recharge with the correct amount