故障:工作中显示E4不加热 检修:苏泊尔C21S02-B电磁炉显示E4属于欠压保护,应检查D1(1N4007)、D2(1N4007)、R1(240K)、R2(240K)、EC3(10UF/25V),测量R1电阻时发现电阻值已变大至2M,用同阻值电阻更换R1后试机故障机修到这里,终于修好值得探讨。。 |
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