Apple repairing, replacing some Time Capsules
Apple is now offering free repairs or replacements for Time Capsules bought between February and June 2008. According to an Apple Knowledge Base article, some Time Capsules sold between approximately February 2008 and June 2008 may not power on or may shut down unexpectedly after starting up.
http://www.macsimumnews.com/index.php/archive/apple_repairing_replacing_some_time_capsules/