HOW SPARE PARTS CAN SAVE YOU TIME, STRESS, AND MONEY............................................................................................................................................................................................................

This will take place any time a heating component is shorted, a regulating thermostat or thermister fails, or with a partly restricted exhaust vent. The fuse attaches on the blower wheel housing. It will have to get replaced when there's no extended continuity in between the terminals. this is the 1-time fuse, indicating it can't be re-established.