Husqvarna 166857  Fuse

The purpose of the Fuse is to protect the wiring and electrical equipment for outdoor power equipment. They are found within the fuse box, near the battery or ignition components. Fuses are a sacrificial device, designed to fail in the case of overcurrent by which a metal wire or strip melts, stopping and interrupting the electrical current. In the case of a blown fuse, replacing with a new fuse can restore the electrical capability of your equipment.