Left fan extremely loud

iPad Retina

macrumors 6502a
Original poster
Jan 6, 2013
754
58
Toronto
Hello my fan has been running loud, only the left side, the right side is normal, could it just be dust? Can this be fixed, it will it have to be replaced? I have a mid 2012 MacBook Pro retina 15'
 

Mik3F

macrumors 6502
Feb 3, 2011
256
2
If you don't mind opening it up you can easily check for a build up of dust on the fans and clean as required using compressed air
 

iPad Retina

macrumors 6502a
Original poster
Jan 6, 2013
754
58
Toronto
If you don't mind opening it up you can easily check for a build up of dust on the fans and clean as required using compressed air
Its near impossible to find the screwdriver to open this, without buying the screw driver online
 

Mr. Retrofire

macrumors 603
Mar 2, 2010
5,040
451
www.emiliana.cl/en
Hello my fan has been running loud, only the left side, the right side is normal, could it just be dust? Can this be fixed, it will it have to be replaced? I have a mid 2012 MacBook Pro retina 15'
It is dust and a defective bearing. Replace it with a new fan. iFixit (see below) sells the necessary parts.

(For european/UK MBP users: I can recommend the Power4Laptops shop (via Amazon). Make sure you buy the Power4Laptops original Apple parts, not the "same" parts from other sellers on Amazon!)

I replaced the left fan of my Early 2011 MBP 17" in May 2014. No problems (the fan was brand new). I found the part number on the back of the fan (removed only the three TORX 6 screws). I can recommend WIHA screwdrivers.

Other notes:
http://forums.macrumors.com/showthread.php?p=19320104#post19320104
https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Retina+Display+Mid+2012+Left+Fan+Replacement/9719
https://encrypted.google.com/search?q=15+mbp+2012+left+fan+replacement
 

redheeler

macrumors 604
Oct 17, 2014
7,396
6,965
Hello my fan has been running loud, only the left side, the right side is normal, could it just be dust? Can this be fixed, it will it have to be replaced? I have a mid 2012 MacBook Pro retina 15'
My 15" mid 2012 rMBP had a similar problem with one of the fans. As already mentioned it is likely a bad bearing and will need to be replaced.
 

poiihy

macrumors 68020
Aug 22, 2014
2,273
40
It is dust and a defective bearing. Replace it with a new fan. iFixit (see below) sells the necessary parts.

(For european/UK MBP users: I can recommend the Power4Laptops shop (via Amazon). Make sure you buy the Power4Laptops original Apple parts, not the "same" parts from other sellers on Amazon!)

I replaced the left fan of my Early 2011 MBP 17" in May 2014. No problems (the fan was brand new). I found the part number on the back of the fan (removed only the three TORX 6 screws). I can recommend WIHA screwdrivers.

Other notes:
http://forums.macrumors.com/showthread.php?p=19320104#post19320104
https://www.ifixit.com/Guide/MacBook+Pro+15-Inch+Retina+Display+Mid+2012+Left+Fan+Replacement/9719
https://encrypted.google.com/search?q=15+mbp+2012+left+fan+replacement
My 15" mid 2012 rMBP had a similar problem with one of the fans. As already mentioned it is likely a bad bearing and will need to be replaced.
Not necessarily replaced...

The left fan in my MBP had bad bearing too and it was driving me nuts; it was so irritating! So I opened up the MBP, removed the fan, opened up the fan enclosure, popped the propellor off, and oiled it. (I used some soybean-based oil) I did this last August or September. The fan has been running quiet and normal ever since, and it has been 5 or 6 months. :)

The propellor is firmly held in so it feels like it wont come off without breaking, but by gently working it it finally popped off. Don't worry about it; if it breaks then just replace it, because you were going to do hat anyway. :)
 

Queen6

macrumors 604
has this ever happen to anyone else?
Happens to all MBP`s over time, the fan may well just need cleaning nothing more. I still have one 15" from Early 2008 and it`s on it`s second set of fans and in need of a third set, equally it`s spent significant time in the desert & tropics...

All just depends on what gets sucked in to the cooling system or if a bearing fails prematurely. You can always take the Notebook to Apple, they have been known to be benevolent to some owners.

Q-6
 
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