try resetting SMC
Disconnect the MagSafe power adapter from the macbook pro
Remove the battery (if removable)
Press and hold the power button for 5 seconds
Release the power button
Reconnect the battery and MagSafe power adapter
Press the power button to turn on the computer
if the battery is non-removable then trun off the macbook and
Plug in the MagSafe power adapter to the macbook
On the built-in keyboard, press the (left side) Shift-Control-Option keys and the power button at the same time
Release all the keys and the power button at the same time
Press the power button to turn on the computer
by the way, is the power button working? can you power on your mac?