i have a few things for you to do first are simple and 2nd is to try a hard reset.
make sure it is charged
hold down the "select" and the "menu" buttons together until the apple logo pops up.
if this doesnt work then lets try a hard reset
To reset an iPod with a Click Wheel, including:
iPod nano (4th generation)
iPod nano (3rd generation)
iPod nano (2nd generation)
1. Toggle the Hold switch on and off. (Slide it to Hold, then turn it off again.)
2. Press and hold the Menu and Center (Select) buttons simultaneously until the Apple logo appears, about 6 to 8 seconds. You may need to repeat this step.
Tip: If you are having difficulty resetting your iPod, set it on a flat surface. Make sure the finger pressing the Select button is not touching any part of the click wheel. Also make sure that you are pressing the Menu button toward the outside of the click wheel, and not near the center.
If the above steps did not work, try connecting iPod to a power adapter and plug the power adapter into an electrical outlet, or connect iPod to your computer. Make sure the computer is turned on and isn't set to go to sleep.
if that doesnt work take it to a store that sells them and see what they say. If it is under warranty get it repaired for free. If it is not look into how much it will cost to have it repaired versus replacing and figure out what is more cost effective. also this website guarantees there work on ipods click here for ipod repair site
*note that a hard reset may cause you to lose some or all of the data so make sure your library file is backed up..
if you need further assistance on any of the steps please let me know and i will be glad to
assist you. Thanks and have a great day.