Why does my furnace fuse keep blowing out?
Why does my furnace fuse keep blowing out? Faulty Parts: Sometimes, the blown furnace fuse is simply a sign of a much larger issue with the furnace. A faulty transformer or a malfunctioning thermostat wire can all be common culprits for fuses that continue to blow. Loose wires, in general, are often responsible for blown fuses. How can you tell when a fuse is blown? Some plastic fuses will have the same wire, but it is only visible when viewed from the side. On either type of fuse, you can tell that it is blown when the wire is broken....