首先通过检修口拆卸阀瓣的后面及其弹簧末端。

Remove through access port with back of clapper first with spring end down.

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电磁线圈烧坏C，阀芯卡死，解决办法检修或更换。

B. solenoid valve stuck, burn C, solution repair or replacement.

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电磁线圈烧坏C，阀芯卡死，解决办法检修或更换。

B. solenoid valve stuck, burn C, solution repair or replacement.

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