Macbook mysteriously soaked (condensation?) -- what happened and what now?

Alright, so I'm sort of panic mode here -- after leaving a Macbook on a chair near a closed glass-paneled door for about 5 and a half hours today I came back to find it totally soaked. Like, drenched. The worst part is that it's not even mine, I was borrowing it from a friend...and I seriously have no idea what happened and I don't really have any idea of what to do about it now. Currently it's unplugged and upside down on a towel near a space heater and I dried it off as best I could...if there's anything else I should be doing by all means let me know.

To give a little more detail: since last fall I've been taking weekly time lapse videos for a project for one of my classes and I've been using a friend's Macbook to record the videos with its built in webcam. Up until now I've had no problems with it at all, and I've used it outside for hours at a time as well as used it in out in a garage in front of a window on days when the temperature was in the 40s and 50s. Today I set it up to do another routine time lapse recording, this time in a new location, pointed outside through a glass paneled door while placed on a chair in front of said door in my computer/tv room. It was turned on, plugged in and recording when I left it at around 11:30AM. When I returned at 5:00PM the screen was black, the power light was off, it was still plugged in and it was totally soaked with water. And I mean soaked. When I picked it up water poured off of the keyboard like I had just picked it up out of a lake. There's a puddle of water from where it spilled off when I picked it up and a trail of water between there and the other room I took it to. The only thing I can think of is that some sort of major condensation happened, but the amount of water that was on it seems like WAY too much for just condensation. The whole thing was soaked too, including the entire screen (which is now streaked with water stains) as if a water balloon hit it.

As for the temperature, it was between 16°F and 33°F outside today and the temperature of my house is around 70°F. It's 23°F outside right now (5:30PM). The door was fully closed and locked (I tested this many times) and the skies were totally clear today, no rain or snow at all that could have somehow gotten in through cracks in the door or anything. The chair it was on was about 3 or 4 inches away from the door. I've been in the house all day so I'm sure that no one else has been inside it besides myself. I checked the ceiling above where it was and there's no sign of any leak; when I found it, it was the only thing that was wet--even the fabric chair it was sitting on was dry. There were no glasses of water around it or near it and there were no other liquids in the room whatsoever. (Regarding the door, the closest representation of it that I could find were these two pictures: http://i53.tinypic.com/23su440.jpg and http://i51.tinypic.com/14ucr9j.jpg). When I touched the glass on the door it was cold (obviously) but the computer wasn't touching the glass or the door, it was just near it. Could simply being near a closed door to the outside be enough to cause condensation like this?

I've had this pointed out closed glass windows earlier this winter and the temperature was a lot colder then and there was never even a hint of condensation. The only difference I can think of is that the windows are new and the door is old (I believe it's the original door for this house and the house is 250+ years old) so the door is certainly draftier and less equipped to keep out cold air. But I felt no cold air near it at all and I've been in that room countless times and it's always been the same temperature as the rest of the house so I still can't figure this out. I also have no idea how long it was soaked like that--I just know that it was fine when I left it there at 11:30AM and soaked when I came back at 5pm. It was plugged in and operating the entire time so I imagine that doesn't help matters. I didn't try and shut it off when I found it since the power light was already off and the screen was black and I also didn't remove the battery since I didn't (and still don't) know if I'm supposed to.

Okay, that's all the information I can think of right now...the only good thing in all this is that my friend has a total of 4 computers and this was his oldest (from 2007 or 2008 I believe) thus why he lent it to me. He also hasn't asked for it back in all this time so I'm assuming that means he doesn't use or need it very often. I also think this is or was one of his work computers meaning it was given to him for work by his employer and actually belongs to them....which probably doesn't help. But still, there were a ton of documents and files on there that weren't mine and I've got to assume at this point everything that was on there is now long gone...but I don't know for sure which I guess is why I'm posting here. Basically what I want to know is if there's anything else I could or should be doing to help dry it out, improve its chances of functioning again or anything else and also what caused this so I can at least tell him there was an absolute and identifiable cause instead of just saying "I left it on during the day and came back to find it off and mysteriously soaking wet." Any help, info or advice on the matter would be much appreciated.

Macbook, Mac OS X (10.6)

Posted on Jan 28, 2011 3:50 PM

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6 replies

Jan 28, 2011 4:51 PM in response to soakedmacbook

what happened


Condensation goes the other way. If you put something cold in a hot room it will get condensation. A running computer is going to be one of the relatively warmer things in the room.

I'm a bit confused about your geography. You said you left and came back to find it wet. Then you said you had never left the house. Which is it? If you left the house, it was your ex-girlfriend. If you are still inside the house, it was a poltergeist.

what now?


Buy your friend a new computer.

Jan 28, 2011 6:04 PM in response to etresoft

Good point about the condensation...the laptop came from a normal room temperature and was introduced to a colder temperature while operating and was only moved to a warmer environment after the water had already gathered there. From what I've read the operating temperature for most laptops is around 50°F but what happens when they're used below that temperature? All the results I've found dealing with the issue are talking about an inactive laptop that had been in the cold and was then brought back into warmth, none seem to be about the problems with actually operating a laptop in the colder temperatures.

And when I wrote that I had left I meant I had left the room, not the house. I was in the house all day, I just didn't go back into that room until 5.5 hours after having put it there earlier on.

Jan 28, 2011 6:21 PM in response to soakedmacbook

I've heard of Spontaneous Human Combustion, but never Spontaneous MacBook Condensation.

Is there any possibility someone else went into that room? A blind grandmother with a watering can? Rambunctious granddaughter with water balloon and/or squirt-gun? Disgruntled laid-off factory worker now working as housekeeper? I've already suggested vengeful ex-girlfriend.

If none of those are possible, I'm afraid poltergeist is your best bet. Unfortunately, they are not covered under the AppleCare extended warranty. Do you have any angst-ridden teenagers in the house that could be manifesting on other dimensions?

Jan 28, 2011 6:45 PM in response to soakedmacbook

Nope, I'm positive I was the only person in the house today. I do have a dog in the house but I can't imagine any scenario where the dog could have done anything to cause this. The liquid definitely wasn't dog pee and the dog would have had to levitate up above the laptop in order for that to happen at all anyway. So unless it sucked up water into its mouth from the dog dish and then walked to the other end of the house and spit it out directly onto the laptop I think the dog can be eliminated as a suspect.

The only thing I can think of is maybe the warm laptop being in a close proximity to drafts of freezing air and the freezing air "melting" into liquid upon hitting the warmth of the laptop but that seems like a stretch.

Too bad I can't use the laptop or else I could watch the video that I was recording with it...after all, it was recording whatever went on immediately before and possibly also during the time that it got soaked. But the more I look up info about salvaging laptops that have had significant water damage the less hope I have for using this laptop as anything other than a doorstop from now on. Sigh.

Jan 29, 2011 10:19 AM in response to soakedmacbook

soakedmacbook wrote:
the dog would have had to levitate up above the laptop in order for that to happen at all anyway.


The levitating dog does fit nicely with my other theories.

The only thing I can think of is maybe the warm laptop being in a close proximity to drafts of freezing air and the freezing air "melting" into liquid upon hitting the warmth of the laptop but that seems like a stretch.


Cold air is typically dry air anyway. Maybe if someone hit the computer (and only the computer) with a snowball, it would melt due to the heat of the computer and cause that.

Too bad I can't use the laptop or else I could watch the video that I was recording with it...after all, it was recording whatever went on immediately before and possibly also during the time that it got soaked. But the more I look up info about salvaging laptops that have had significant water damage the less hope I have for using this laptop as anything other than a doorstop from now on. Sigh.


The hard drive inside should still be fine. Remove it and put it into a 2.5" enclosure and open up the video it was recording. It the video file is corrupt, you may have to use something like MPlayerExtended to open it.

Jan 31, 2011 9:21 AM in response to soakedmacbook

Well, I solved the mystery. It had nothing to do with the door or drafts of cold air or condensation or anything like that. Turns out it was a leak in the ceiling after all. Like I said in my original post, it was a sunny day, and on that particular day the temps went above freezing outside which they hadn't done in a while. As a result all the giant icicles on the house melted a bit in the afternoon sunshine and temperatures which must have caused the leak in the ceiling which, unfortunately, was directly above where the laptop was placed for those 5.5 hours. By the time I went back at 5PM it was in the low 20s again so the melting had stopped and so had the leak which is why I didn't see anything when I checked; also why the water was on only the laptop and nothing else...the laptop was in the worst possible location and collected all of the water that otherwise would have just dripped onto the floor.

I only figured this out since it was another "warm" and sunny day today and when I was in that room I noticed a puddle of water on the floor in that same spot and sure enough, cold water was dripping from the ceiling above it. It's just very bad luck that of all the places and times for there to be a leak it was on that day in that one specific spot...if the laptop had been literally even 2 inches away in any direction it wouldn't have gotten so much as a drop on it. The good news is that my friend had previously backed up everything that was on there so at least no data of his was lost. I guess the moral of the story is, when in doubt, keep your laptop in a plastic bag...or maybe under an umbrella.

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Macbook mysteriously soaked (condensation?) -- what happened and what now?

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