Your MacBook Air has what Apple calls LSI (Liquid Submersion Indicators) located throughout your Book. These will turn red when activated. If it were me I would take it completely down and look for where the water has been and the LSI activated. This will give you an indication of what needs to be replacedHere are the locations of those indicators: http://www.iworld.com.my/blog/?p=7994

I stupidly spilled an entire beer on my MBAir keyboard. I immediately held down the power button, while holding it upside down, to turn off the machine. Took abouot 3-5 seconds. I then dried it as best I could then let it set for a week in a ziplock with a half dozen silicon gel bags. I ordered the iFixit 5pentalobe tool in the meantime. After a week, I took the machine apart and There were 3 Liquid indicators tripped , the upper Case upper left where the spill started, and two of the battery indicators. I cleaned as much as I could with 90% iso-alcohol. I then blow dried it all, set overnight and then reassembled it.

Plugged in the power maglink, and the it turned green to orange - that works. But pressing the power button did nothing. No boot. I left it plugged in overnight and magically it booted the next day! Everything seemed to work well - tho I didn't test the keyboard extensively. I decided , perhaps foolishly, to shut it down and reboot to run the hardware test on the USB drive. Pressing the power key brought up the shutdown dialog box just fine. But unfortunately, after shutdown, it would no longer boot up and remains that way to date. Is there a way to try to isolate what could be wrong? Any way to test components individually? Any reason.hint it would boot fine once but not again?

Thanks for your help!

Gary,

I did almost the same thing as you. Spilled a drink near unit, dried it up, it worked fine for 3 months with no key board. I figured I could open it up and try to clean any residue. 3 liquid triggers were found red, one upper corner near mag safe plug near I/O board, one on ribbon cable over fan and one on middle of battery. I cleaned everything up with 90% alcohol, and left it to dry for a week or so, all apart.

When I put everything back together, I got nothing on the plug light, no orange or green light. Later that night I noticed the light was now on, and green, but very, very faint. It still wont pwr up.

Now should I lv it plugged in? Any advice will help.

My problem is almost identical to Gary's. My MBA initially booted though I had to use an external keyboard and I was able to get a lot of data off it. After shutdown, it's unresponsive. It initially would not charge; now the charger light is orange even after being left to charge for two days. I'd love to know which components I have to replace. A new MBA just isn't the the budget.

I'm having a similar issue, my MacBook Pro 17inch 2011 model had beer spilt on it. I turned it upsiide down, dripped all the liquid out and switched it off. When i switched it back on the follwing day everything works fine except the keyboard. The keys are sticking, some don't work, some work when you don't want them to work. It works fine with an external keyboard plugged in. I have switched it off and plan on leaving it off for a few days to properly dry it out. I'm wondering if its just the keyboard thats an issue or will the logic board be affected...... I'm hoping the former as like i said, external keyboard works perfectly and no issues with anything else.