格力空调KFR-50LW柜机压缩机热保护报修案例 故障现象:格力空调KFR-50LW柜机压缩机热保护，频繁停机开机
分析与报修：在客户那得知有多个同行上门都没有解决问题。空调压缩机热保护通常都是2个原因导致的，一、压缩机质量不行，运行电流大。二、外部散热不良。
我查了几方面都未发现异常，于是用压力表接在低压管，用钳形表测外机电流，同时用MF-47万用表测外机传感器电压(电流约8A，压力约0.5MPa，传感器两端电压为2,5v)，可见电流及压力都在正常范围，但是顾客跟我讲就是工作不正常。我试着调动遥控器，设置16度让压缩机连续工作约40分钟，运行正常，然后再设置到29度，外风机停止运行，但是压缩机还在运行(属于异常现象!)，于是我怀疑内板控制压缩机的继家电没断开。
故障解决：更换该继家电后运行正常，不再出现压缩机过载保护动作现象。
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