Hello, does anyone know the board information for A050504008957 ZHigao model Z70W1? My board has FH error, but I can't find any problem with the circuit and components. I have replaced the IPM and all the op amps, but the problem still exists.
Thanks in advance!


你好,这块电路板上的 FH 错误表明室外直流风扇电机存在问题,我也用多功能测试仪测试过,但仍然出现同样的 fh 错误。我坚信问题出在风扇 IPM 旁边的区域。我更换了 IPM,并跟踪了所有线索,一切正常,唯一没有检查的是风扇 IPM 旁边的微控制器,不知道该如何测试。