Do you have fluorescent or "energy efficient bulbs in your light. Regular incandescent (standard) lights should be used, and as for the interference i have the same problem when large appliances are used. I live in a basement apartment for now and have areas that my phone acts up. You may...
If your fan is more that 35 pounds you need to have idependent supports. or you need to get a remodel fan support box. What else is a great idea is if you have a vaulted cieling and you get a remote kit that is compatable with your fan. you set the frequency and then match that to the switch...