Whoever originally wired the ceiling fan in one of our bedrooms did not wire it properly. There are 2 switches on the wall. The first one operates the fan; the 2nd one operates the light on the fan. Problem: I have to throw both switches for the light to work. If the fan switch is not on, the light will not operate. Is this an issue with the wiring in the outlet that feeds the fan or, in the wall switches?