该风扇电机M1系采用电容启动,若启动电容C8容量变小。M1启动困难。若启动电容C8失容。则M1不启动运转。焊开C8两引线。用数字万用表电容挡测量C8,不出所料容量只有0.43μF(正常容量1.5μF),由此判断C8变值引起该故障。更换C8(CBB61型、1.5μF、400V)后,故障机修到这里,终于修好值得探讨。。 |
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