impression that I'm any more than marginally handy, but I told them I will give it a look.

They say the fan is working fine still, but the lights suddenly stopped working. Before I go over there, what are the basic things I should check first (after the light bulbs)?

The tools at my disposal are a rinkydink generic ohmmeter (that I don't know how to use extremely well), and a non-contact voltage tester.