电磁炉风扇不转的维修经验

资料员

故障现象：风机不转（指示灯正常）。 故障现象分析：根据电磁炉原理推测，造成该故障现象的原因基本可以分为两种情况：

一、若电磁炉能正常加热，而风机不转。则说明5V电源正常，18V电源正常。其故障范围应在风机控制电路和风机本身。

二、若电磁炉不能正常加热，而风机不转。则说明故障多出现在18V电源和单片机上。

故障电路推断： 5V稳压电路、18V稳压电路、风机电路。

维修指引：通电测量18V供电输出电压18.01V正常，在开机状态下测量Q10（D667）三极管的B极电压为0.7V左右正常。再用镊子短路三极管 D667的CE极时，风极运转正常。此时，可以推断故障应为三极管Q10（D667）不良。取下D667测量发现其BC极已开路，更换后试机，确认故障排除。

水底的泡泡1

我也遇到这问题

550414491

好文章

QGJJCFRRR

好经验,学习.

sagewood

我家的风扇转的非常厉害

飞鸽江

zqcfire

我的是雅乐思YLS21Y1D不检锅，怎么维修啊？谢谢！

jackson

不错，

zhangbo123

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