空调没接地线会坏主板吗保修吗 没接地线用久了主机会怎样？只会烧坏主板吗？主机换部件要多少钱...
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涉及保修的争执，就要有非常严谨的理据。习惯上定性可以说，没接地线是不会导致主板故障的，但雷击时，线路出现大电压浪涌时，地线是可以将雷击和浪涌电压做相应的削弱。使到电路板的元器件起到保护作用。
虽然，这个存在于量级的问题，但没有地线就存在违反基本使用条件要求了。
争执胜负取决于具体故障了。
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