Laptop keyboard with water damage

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I have an ASUS g75VW laptop that I bought a couple months ago.

A few days ago I accidentally spilled a glass of water on the keyboard when I was cleaning up my desk (I about had a heart attack). I immediately shut the computer down, unplugged the charger and battery, grabbed every towel I could find and threw them on the keyboard. I then turned the laptop upside down and went at it with a blow dryer on medium heat (which I have been reading is a bad idea) for about a half hour.

I let it sit for a couple hours, then fired it back up. It actually worked perfectly fine, no apparent damage at all.

I'm studying Computer Programming at a University right now, and I'm also a teaching assistant, so between grading programs and writing my own I spend a TON of time on that laptop. In the couple days that followed the accident I used it a lot, about 8-9 total hours per day. During this time it was working perfectly, until last night.

Heres the problem:
The keyboard has started to enter keys by itself. It's favorite seems to be the left arrow key, which it likes to hit every 20-30 seconds or so. On rare occasion it will enter some random character when I'm typing.

I installed a keymapper and disabled the left arrow key entirely as a test, so it no longer works when I myself hit the left arrow key. Oddly enough, it will still automatically scroll left despite having the key disabled.

Does anyone have any ideas about what my be going wrong? Did I not the let the keyboard dry for long enough so the connection to the motherboard is shorting?

Best Answer

You can carefully pop the keys off the keyboard to check for residual water. Most laptop keyboard will have a this plastic sheeting that is visible after popping the keys off. If you see condensation under or on the sheeting then you will need to dry it out more.

When I have done this in the past, I will turn the laptop upside down and let it sit unused for several says to let things dry out before turning it back on. Patience is key. Letting it sit for only a couple of hours is not sufficient.

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