My Air won't start. Black screen and no lights on keyboard!

I've been in Hawaii for a week, coming from Utah, so not sure if humidity had anything to do with this or not?  But my MacBook Air had been working fine. I went to turn it on last night and nothing. So I thought battery was dead. Plugged in power cord and it started charging. Waited a few min and tried to start, nothing. Waited 30 min, nothing. Unplugged cord and tried. Nothing. This morning cord light stays green, indicating full battery, but still nothing. It has been sitting on a desk for two days and hasn't been touched. Wasn't able to afford insurance when I forked out $1400 for this guy. Any suggestions? Thank you so much!

In such a case, diagnosis is extremely limited, since charger indicates a full charge on the LiPo cells, and you get no powerup sounds then the monitor is eliminated,
.....inside the Air it is extremely simple...battery cells a logic board and speakers, fan, and SSD.   Very likely you logic board is dead.
Contact Apple for diagnosis/ repair.

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