Green light is always on charger after water damage. how to repair?
How do i find out what parts are wrong in my computer after water damage. Green light is on always as if charging but it won't power on. Also is not giving power to the battery. The battery remains at same level all the time and is not charging. Can it be the logic board or magsafe board? How can i test these 2 boards and find out which is out of service? The magsafe board seems to be getting power because i feel it warm but i don't know for sure if this is the problem that needs to be replaced. The accident happened as a glass of water fell and water sneaked through back vents while computer was closed. I opened computer and it had shut down. It came on once but then it shut down again and never turned on. Let me know what to do and diagnose the issue so i know what part needs to be fixed.
Have you opened the computer and examined the board to see if there is any visible corrosion you can clean off with rubbing alcohol?
Also, try disconnecting the topcase entirely and jump the power by triggering the board's power-on pads. It may be that the topcase has gotten fried and it is not capable of powering on the machine. If you can power it on via the power-on pads, you know the topcase is bad. If you can't, you can then be pretty sure the topcase is not the problem.
Typically if the light on the AC adapter is solid green, the DC-in is not the problem. A bad DC-in would more likely have a dim light, an amber light, or no light at all.
There's no way to know for sure until you start replacing parts with known-good parts...but I would definitely first try the steps I mentioned above, because they may solve your problem or point you in a different direction.
I would test out with a known good Magsafe board. They are cheap online and it may be worth a shot. But from what you are saying, it's most likely the logic board that needs to be replaced/repair