中文
含义
排水泵故障。仅适用于带排水提升泵的隐藏式或吊顶式空调。排水泵不工作或浮子开关异常，可能导致接水盘水位升高溢水。
常见原因
- 排水泵电机绕组烧毁或卡死
- 浮子开关卡在关闭位置，排水泵不启动
- 排水泵启动电容失效
- 排水管路堵塞导致水泵过载保护
- 浮子开关接线端子进水氧化接触不良
自助排查
- 检查接水盘水位是否过高，观察是否有溢水迹象
- 听排水泵有无运转声，若不转检查浮子开关是否卡住
- 清理排水管路确保畅通
- 如排水泵电机损坏需更换同型号排水泵
English
Meaning
Drain pump failure. Applies only to concealed or ceiling-cassette units with a condensate lift pump. The pump fails to run or the float switch malfunctions, potentially allowing the drain pan to overflow.
Common Causes
- Burned-out drain pump motor winding or seized rotor
- Float switch stuck in the off position, preventing pump activation
- Failed drain pump start capacitor
- Blocked drain line causing pump overload protection
- Corroded float switch wire terminals due to water ingress
Self-Check Steps
- Check the drain pan water level and look for signs of overflow
- Listen for pump operation — if silent, check whether the float switch moves freely
- Clear the drain line to ensure unobstructed flow
- If the pump motor is damaged, replace with the specified drain pump model