I'm trying to fix my furnace. It is a extremely old unit I know, but want to use it one more year if I can. The wiring is what is screwing me up. It is a Gaffers & Sattler S 79 FDF. I've looked all over the internet to find the wiring diagram but no luck. I will try to post a 3D picture of my wiring later, but if you know of the wiring diagram or a similar one I could look at, that would be great. It has a "summer" on off switch. Also has a HI/LOW switch for the blower. More wires then I know what to do with. Thanks