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故障现象 :执行冲洗 (Rinse)程序 ,程序通过 ,再做测试 (Test)时 ,屏幕显示负压报警 (F0 2negpressure) ,测试失败 ,机器不能正常工作。分析与检修 :该机器由电脑控制系统和水路循环系统两部分构成。先由水路循环系统查起。由机器水路原理得知 ,造成负压报警一般有三种情况 :(1
Symptom: After executing the Rinse program and the program passes, the screen will display F0 2negpressure. The test fails and the machine does not work normally. Analysis and Maintenance: The machine consists of computer control system and water circulation system composed of two parts. First by the water circulation system check. By the principle of the machine waterway, resulting in negative pressure alarm generally have three situations: (1