风扇不转动且不能加热应先从电源电路查起,测电源正常,机内6A熔断器未熔断,但在整流硅堆输出端电阻R201处已脱焊。电阻R201为整机采样电阻,正常时在电阻R201上获取检测信号,才能控制电磁炉工作。将R201重新焊接后开机,一切正常。 |
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