What does it mean when a fuse gets hot?
What does it mean when a fuse gets hot? Heating in an electrical circuit is always caused by current flowing through a resistance. If there is significant resistance in the contact between fuse and fuse holder, a current well below the fuse rating can cause enough heat to melt an inline fuse holder. Can a bad ignition relay cause a lot of heat? An ignition relay with corrosion, rust, or water inside of it can get a bad connection inside it, and this will cause a lot of heat. Often you can see that the plastic cover melted over the...