I am replacing the fan that was in my bath and I am having trouble rewiring the new one. I have two lines of 12/2 (blk,white, and bare). the fan has a blk and a blu from the light, red,blk from heater, and white and blk from the fan. I believe this is accurate. Does anyone know how the wiring goes???

Have you looked at the wiring diagram that came with the new one? What is the brand and Exact model of the new fan unit?

I have looked at the diagram for the new one, but when I hook it up like the diagrams suggests, nothing works.