NOT KNOWN DETAILS ABOUT AUTO PARTS .............................................................................................................................................................................................................................

This could occur each time a heating element is shorted, a regulating thermostat or thermister fails, or that has a partially limited exhaust vent. The fuse attaches to your blower wheel housing. It should get replaced when there is no lengthier continuity among the terminals. that is a a single-time fuse, indicating it can not be re-established. T