Macbook pro power adapter very hot- stopped working

a few days ago I noticed my macbook pro power adapter was running very hot. Yesterday it stopped charging. I switched the power cord 1/2 with 2nd one I had… it works but the adapter is running very hot. do I need new adapter/power cord since my original cord is no longer working.
suggestions please.
JGCub

   Reset SMC.     http://support.apple.com/kb/HT3964
   Choose the method for:
   "Resetting SMC on portables with a battery you should not remove on your own".
If this does not help, contact Apple.
Genius Bar reservation
http://www.apple.com/retail/geniusbar/

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Macbook pro power adapter very hot- stopped working

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