I have a Dornbach furnace that has a honewell fan limit switch. I replaced the insert and had to un hook the wires going to the blower fan. The wires on the switch is red black and blue. I never un hooked the blue so it is OK. I also never un hooked the red at the front of the furnace. I have white and black and green on the blower, green being ground I know. I have coming from the limit switch going to the blower red, black and white. Where do I hook these up on the blower fan? I lost my paper I made to re hook them.

Thank you,
Ronnie

I have a Rheem split gas furnace and the model # is missing that nees a fan limit switch. How can I obtain the corect fan limit switch?