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I’m currently in the process of getting a MacBook Air to work again after a coffee spill. So far, I’ve already disassembled it and cleaned the components with special electronics/pcb cleaner. Unfortunately it doesn’t want to power on and I don’t have any idea which part is causing it yet. Here are two things I’ve already figured out: The MagSafe 2 LED is green when connecting it and changes to orange (charging) after one second.The MagSafe 2 LED changes when resetting the SMC, so I guess the keyboard/upper case is still ok. I already disconnected almost everything from the logic/IO board in order to exclude these parts (SSD, speakers, microphone, AirPort/Bluetooth etc.), yet absolutely nothing happens when I hold the power button. No startup sound, no fan spinning, display remains black. Is there any way how I could find the defective parts or get it to work at all? Unfortunately I don’t have another MBA to exchange parts.
What was the cleaner? You may need to start over using distilled water and Isopropyl alcohol depending on what you had added to your coffee.
Find a good magnifier and light. Look for burned corroded spots on the top and bottom of the logic board. You must have RAM and some other POST (power on self test) components connected in order to start the boot process. If this Answer is helpful please remember to return and mark it Accepted.
The logic board is fairly well protected from minor spills on the keyboard. The keyboard shorts out and you have to replace the upper case. I’ve found that this will fix 90% of these minor spill cases.
You should start here: MacBook water damage diagnostic Then we can assess your next steps.
