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Repair guides for the MacBook Air, Apple's current line of consumer laptops.

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Why is my MacBookAir blowing air

Why is my MacBookAir blowing air after a 12 hour flight from Asia. There is actually air coming out on the left hand side, at the bottom, at the back. What does this mean and what should I do. I just got it from the States last October, but am now staying in Austria?

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Does anyone know why my Mac blows out cool air when I start gaming?

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I know why your Mac book blows air. Like my ma book pro and every other Mac book in general bows air because the motor in Mac books gets worked up like a car and blows air like a car motor eating gas! and peoples computers MOSTLY get worked up when doing gaming because thats when the computer needs to load most. like me I also have experienced this when I do gaming

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can i make the blowing at the back stop

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mine is happening right now but seems to be going down after I stopped playing a game

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I've determined that if you put something cold under the area where it gets hot before getting the motor all worked up about gaming, it makes no noise. The cold item will act as an external cooling device!

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A-huh! Sleep Mode

You cooked it when you put it into the case as the heat had no where to go. Sleep mode is still ON, just low power.

If things are still working your OK.

You may need to reset the SMC if the fan doesn't turn off on its own after being shut down correctly and then restarted after the system is at room temp after a few minutes (takes a little time to get it's bearings).

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Thanks Dan, you must be right, I probably cooked it! Unfortunately I have no idea what an SMC is and how to reset it. Could you help me, by explaining in computer- illiterate language?

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Tatjana - See below duplicate entry for reply

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What were you doing when the fan kicked in? Watching a movie, it can stress the CPU & GPU causing them to heat up (needing the fan to kick in).

After you shutdown your MacBook Air and restarted it after a few hours did the fan come on and then shut off after a few seconds?

If so your system is AOK. The fan was doing what it needed to do keep your system cool.

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No, I was not watching a movie, even though I was on a long-haul flight at 10,000 meters. MacBookAir was in my carry-on bag. I had not realized that I had not properly shut it down, but had simply closed it. Once I got home I noticed the fan as soon as I opened it, and now it won't stop, even after two days of rest. Any idea what could be done do?

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Thanks Dan, you must be right, I probably cooked it! Unfortunately I have no idea what an SMC is and how to reset it. Could you help me, by explaining in computer- illiterate language?

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There is a fan located in the Macbook Air, take a look at this image.

http://guide-images.ifixit.net/igi/KFKOE...

Is the air coming from that area where the fan is located?

Could be the machine is overheating and the fan kicks into overdrive to try and cool it down.

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What if i had my mac book air in my room all night an i had the aircon on 16 degrees celsius and then when i woke up and turned it on it started blowing hot air out?

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FYI: 16 degrees Celsius = 60.8 degrees Fahrenheit.

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@ Chelsea McSorley - If the system is off there is no source for heat. If the system is in sleep mode the system will still be running in a reduced state which is the source of the heat. So, when you turn the system on the fan will kick out the buildup heat inside. This is normal and expected.

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Same issue after a 12 hour flight, mac air was on sleep mode and now wont stop hissing. It starts when i start it or in sleep mode and only stops when i have completely switched it off.

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Install this great app so you can see you system thermals TG Pro take a sanpshot of the main window and post it here for us to see Adding images to an existing answer

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