Regarding the mother board. I took the cover off and can see a yellow wire on the top right hand corner has a black burn mark on it and that is the wire that goes over to the (what it looks like) a copper wire batch on the top left. The yellow wire has a nick in it where you can see the wire. Have you heard of replacing just this wire? I have no power to the chlorinator. I also have a photo, but do not know how to upload it.