Apple recently began a replacement program for defective 3TB hard drives shipped with 27-inch iMac desktop computers bought between December 2012 and September 2013.
While the 3TB drive did not ship with any entry-level iMacs, it was available as an optional upgrade with the 27-inch iMac.
Apple has stated the hard drives “may fail under certain conditions.”
Affected iMac owners who provided a valid email address when registering their product have been contacted by Apple to inform them about this program. Any owners who have not been contacted but believe they have a 3TB hard drive can check their serial number here to find out if they are entitled to a replacement.
Through this program, affected iMac models will be covered until December 19, 2015 or three years from the original date of sale, whichever results in the longest amount of coverage.
Replacements can be obtained through Apple or an Apple Authorized Service Provider. Additionally, any users who paid for an out-of-warranty replacement will be entitled to a refund.