Hello I am new to this forum and hopefully won't break the DIY rule. I have a very old Frasher Johnston heater. The blower motor had a bearing fail so I replaced motor. When I opened the panels one of the black wires coming from the fan control switch was disconnected. The wiring diagrams on the back of panel are faded and I can no longer read. I have attached a link to a video showing the fan control switch. The yellow wires are wired with one going to the black or hot wire of the ac cord and the second is going to red wire of blower motor. The black wire is hooked up to a 24 volt transformer and the second is disconnected. Again any help would be appreciated and Mods if this is not allowed I apologize I just need some help due to schematics being messed up.