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燃气热水器显示屏不亮，不启动没有热水，换板很简单，调试真麻烦
海尔燃气热水器显示屏不亮，不启动没有热水，师傅检查主板坏了。网友说换板很简单，猴子都会，但是调试真麻烦
燃气热水器不启动，没有热水，常见故障维修合集38/113
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