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The April 2014 update of Apple's 13" MacBook Air features refreshed dual-core i5 and i7 processors, plus slightly increased battery performance.

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It goes sleep unexpectedly with charger or without charger

I have this since 2014 and it working perfectly. Until October, when i have on my backpack and it rained so bad, I think some water got inside. Because immediately after that the machine start acting up, it randomly goes to sleep with no pattern of when it goes sleep. i started to research it and found a couple of answers about I need to reset smc, which i did.

Then I run the diagnostics and it came back with errors PPP007, PPP002 and PPT002

I rest SMC

I rest NVRAM

and nothing changed.

I took the mac to apple genius bar, and they said something wrong need to be replace( I honestly don’t remember what specifically he said) but I believe something on the logic board.

I ordered the logic board and install yesterday, however, I m still having the same issue.

I rest both SMC and NVRAM but still having the same issue.

any advise?

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All those errors are related one way or the other to battery and charging and since the logic board was already replaced the two most likely faulty candidates left are the I/O board where the first part of power circuitry is located and relevant flex cable connecting it to the logic board.

It may be the battery too, open up System Profiler you find in utility folder and check the battery info under power. Post a screenshot if you need help with battery data.

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PPP002, PPP007 and PPT002 errors are all related to the logic board charging logic. I’m suspecting you need to get someone to properly clean the corrosion damage you have on it hopefully that will be able to fix it.

If you’re up to it your self follow this guide to take the logic board out MacBook Air 13" Early 2014 Logic Board Replacement Then using a soft toothbrush and some reagent grade isopropyl alcohol (85% or better) lightly scrub the areas you see staining. Rinse with the alcohol so nothing is left on the board, let it dry and hopefully things work again otherwise you’ll need to look at replacing the logic board.

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