LITTLE KNOWN FACTS ABOUT SPARE PARTS............................................................................................................................................................................................................................

This will come about when a heating factor is shorted, a regulating thermostat or thermister fails, or by using a partly limited exhaust vent. The fuse attaches into the blower wheel housing. It will have to be replaced when there isn't a extended continuity in between the terminals. this can be a a single-time fuse, which means it cannot be re-set