The lights in my ceiling fan is not working.but the fan is working, what could be the problem?

Are you sure your breaker did not just pop? Check the breaker or fuse fiorst and then come back

Are you sure your breaker did not just pop? Check the breaker or fuse fiorst and then come back

The fan is still working but the lights don't work

Are you sure your breaker did not just pop? Check the breaker or fuse fiorst and then come back

Fan works lights don't

My bad, misread your first post and thought all lights in house were out, so just the lights in the ceiling fan, right? Could be a bad transmiter or a bad receiver. Before we get into testing them can your put some tset probes into the light socket to verify no power?

Do new bulbs work?

Is it a remote fan?

http://www.ceiling-fans-n-more.com/ceiling-fan-general-troubleshooting-and-FAQ.php