What does this burned furnace wire tell you?
While trying to figure out if my brake controller was alive I think I shorted something out. Furnace isn't turning on. A/C and fan do still work. Found this burned wire front and center when I took t...
Forum Discussion
If the fuse in the breaker box is lighting up, the fuse is blown- replace it. I would start looking for 12 volt power right where it hook to the furnace- should be a yellow (-12v, or ground) Red (+12v) and 2 blue thermostat wires, one will have power all the time, the other just when the thermostat is calling for heat.
If you are using the meter to check- make sure the leads are in the correct places on the meter- for voltage, not current. I also often use a 12 volt test light.
If you are using the meter to check- make sure the leads are in the correct places on the meter- for voltage, not current. I also often use a 12 volt test light.
