Questions & Answers for: old furnace wiring diagram

furnace which is too old. After hooking the Rudd up, we could not find place to attach the 2 wires for the thermostat(one red wire and one yellow wire). I assume they go to the 24Volt board, but could

...old furnace the transformer went took it off a year ago forgot the wiring , need a wiring diagram The transformer is for the low voltage side of your furnace, you should be able to take the door off ...

furnace. I have one wire left from my old johnson control. this wire either goes to the draft fan or the burnham logic module for dianostics . furnace is working fine, just wondering what that wire is

...old furnace they had very little safety devises. The fan switch was an older high end model so you could blow the cool air from the basement thru out the whole house in the summer, and the fan ran ...

...furnace ? Shooting from the hip here, but look at both the new and old wiring diagrams. Chances are that the new unit has terminal leads that would connect to the old units' relay/control box and you ...

...old board was replaced. Maybe wrong wiring of furnace itself by previous servicemen. I am having trouble finding wiring diagram. Please help. Here is a lot of information in this link: Honeywell ...

furnace is only 3 months old. I just installed a new honeywell thermostat hoping that maybe that would solve my problem of the blower running constantly. the flame will ignite when the house is cooled

old HAI thermostat with a new RC 1000. Four wires to drive furnace and AC, there was no common wire attached. I also connected the thermostat to my HAI controller per the wire diagram although the old

need a wiring diagram for GE Electric Furnace M# BGLE051D1D00 Need a wiring diagram to fix a blower issue 30 plus years old, replace it

...Furnace Model: MGH-065-ABWN-06 Preparing for winter, had old thermostat replaced, ran new wire to new thermostat, have checked all voltage on wires and the gas valve. thermostat set to auto and heat, ...