Fan works,but the light will not go on,even after bulb change

Try pull chain(does it click?), wall switch.
If not, pull off light fixture, check for voltage before switch.

Is this a remote fan?
If not, did you connect the hot wire for the light (usually blue)?

General ceiling fan troubleshooting and help FAQ- Ceiling Fans N More (http://www.ceiling-fans-n-more.com/ceiling-fan-general-troubleshooting-and-FAQ.php)