变频空调售后维修指南(1-1[1]5p__玉、绿、凉系列).pdf

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1、家用直流变频空调售后维修指南变频空调售后维修指南（1-1.5P玉、绿、凉系列）（本说明适用于玉堂春、玉兰春、绿满园、绿嘉园、凉之夏、凉之静）-1-家用直流变频空调售后维修指南目录1.外机控制器简要介绍...............................................................................................-3-1.1室外机控制器各单元电路示意.......................................

2、.............................-3-1.2室外控制器关键位置的测试方法...............................................................-4-1.2.115V/12V/5V等电源的测试点及测试方法....................................-4-1.2.25V和3.3V电源的测试点及测试方法..........................................-4-1.2.

3、3整流桥的测试点及测试方法..........................................................-5-1.2.4IGBT和IPM模块的测试点及测试方法.......................................-5-1.3室外机控制器状态指示灯的识别方法.......................................................-5-2、常见售后故障分析..........................

4、......................................................................-6-2.1通讯故障(E6)故障点的确认方法（根据外机板三个指示灯的显示情况进行判断）..................................................................................................................-6-2.1.1三灯均不亮.............

5、...........................................................................-6-2.1.2三灯中任意一个灯或多个灯常亮....................................................-6-2.1.3只有红灯闪烁....................................................................................-6-2.2

6、外风机不运转...............................................................................................-7-2.3感温包故障...................................................................................................-7-2.4IPM保护（H5）...........................

7、.............................................................-7-2.5整机能够制冷不能制热...............................................................................-8-2.6整机能够制热不能制冷...............................................................................-8

8、-3、更换控制器后故障依然存在的处理方法............................................................-8-3.1、更换外机控制器故障依然存在.................................................................-8-3.2、更换内机控制器故障依然存在............................................