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燃气热水器显示故障代码EF，到底是什么配件坏了？这个故障很少见
海尔燃气热水器显示故障代码EF，这个故障很少见，到底是什么配件坏了呢？师傅机会好，焊接电磁线圈，完美修复
燃气热水器不启动，没有热水，常见故障维修合集33/113
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