I have a Hampton Bay ceiling fan and it has worked fine for 9 years. Last night the bulbs made a popping sound and burnt out. I tried replacing them and now none of the 4 light will turn on. What do I need to do? I know they sell fan light kits (or something like that) or is it better to call an electrician since I know nothing about this. If it is something simple... let me know so that I can get this working again. Thanks