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美的空调室内外通信故障怎么解决
更新时间： 2021-02-02 09:23:13  

1、上门检测用户插座220v交流电压稳定,电压接地安全可靠,连接线有无松动和脱落、零线和火线有无错位,无加长管线安装,初步排除用户电源供电、接地不良及信号连接线造成e1保护。

2、上电2分钟内检测室外机l、n接线端子电压为220v,室内电源输出正常,检测零线n与通讯线s之间有直流2—24v波动电压,进一步排除室内机故障。确定故障点在室外机。

关键词： 空调 室内外 通信 故障 怎么 解决

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