中文
含义
压缩机过载保护动作——压缩机电流过大或热保护器跳断，系统停机保护。
常见原因
- 电源电压过低或过高导致压缩机工作电流异常
- 压缩机启动电容容量下降或失效
- 压缩机内部绕组短路或卡缸
- 制冷系统高压侧堵塞或制冷剂过量
- 压缩机排气温度过高触发热保护
- 室外机散热不良导致系统压力过高
自助排查
- 用万用表测量电源电压是否在额定范围内
- 检查室外机散热翅片是否脏堵，清洁后试机
- 测量压缩机启动电容容量是否正常
- 待压缩机冷却 30 分钟后重启，观察是否仍报错
- 若频繁保护，需联系专业维修检测压缩机绕组阻值和系统压力
English
Meaning
Compressor overload protection triggered — excessive current or thermal protector tripped. System shuts down for protection.
Common Causes
- Abnormal supply voltage causing compressor current to exceed limits
- Weak or failed compressor start capacitor
- Internal winding short circuit or seized compressor
- Blocked high-pressure side or excessive refrigerant charge
- High discharge temperature triggering thermal protection
- Poor outdoor unit heat dissipation causing high system pressure
Self-Check Steps
- Measure the power supply voltage to ensure it is within the rated range
- Check outdoor unit condenser coils for dirt and blockages; clean and retry
- Measure the compressor start capacitor capacitance
- Allow the compressor to cool for 30 minutes, then restart to see if the error clears
- If protection trips frequently, contact a professional to check winding resistance and system pressure