I have a fan/heat/light until 13 years old installed in my first floor bathroom. The unit is still working great, however the plastic cover for the light has fallen and broke as well as the fan fins (once white) have yellowed with age. I have taken the face of the until off and it appears it can be replaced however I can't see to find just the face replacement. I don't want to have to replace the unit as it is connected to the ceiling stringers and the unit works fine. Any idea where I can find a face replacement or at the least a light cover? Any help will be appreciated.