The light kit on my Hamilton Bay ceiling fan stopped working after working well for the past year. The fan still works. The light bulbs are still good. Any ideas? Thanks!

... the switch is off? A wire nut came loose?
Do you have a voltage tester that you know how to use?

The switch was on, but I think something must have come lose because when I opened the thing up and just tightened all the connections, the lights started working again.
Thanks for your reply!