故障现象一辆三星道奇乘用车,当按下空调开关后,空调压缩机电磁离合器出现频繁接合和分离的现象。同时,冷凝器风扇在冷却液温度达到很高时才运转。故障检查经检查,制冷剂充足,压力开关工作正常,电气线路也没有断路和搭铁短路现象。用元征431ME电脑检测仪进行诊断,显示空调压缩机电磁离合器继电器故障,可是,通过 Symptom A Samsung Dodge passenger car, when the air conditioner switch is pressed, the air conditioner compressor electromagnetic clutch frequent engagement and separation phenomenon. At the same time, the condenser fan does not operate until the coolant temperature is very high. After checking the fault check, sufficient refrigerant, pressure switch is working properly, there is no electrical circuit open circuit and short circuit phenomenon. With the yuan sign 431ME computer tester for diagnosis, show air conditioner compressor electromagnetic clutch relay failure, however, by