What does it typically indicate if a fuse has a continuity reading?

A continuity reading across a fuse means that there is a complete electrical connection through the fuse, indicating that it is functioning normally. This means that the conductive element inside the fuse is intact and has not melted, which is what happens when a fuse blows.

When a fuse is in good working condition, it allows current to flow through the circuit it protects. Therefore, a continuity test shows that the electrical pathway remains unbroken. This reading suggests that the fuse can still perform its intended function of protecting the circuit from overcurrent conditions.

In contrast, a blown fuse would not show continuity, as the broken connection means that electricity cannot flow through it at all, leading to incomplete circuitry. Thus, a positive continuity reading is a reassuring sign that the fuse is still operational and doesn’t require replacement at that time.