Heating element is good, only thermal fuse fails most times

When the thermal fuse blows on this unit the cause of the problem is not the fuse

When the next thermal fuse blows (and it will

I always suspected that a fuse had probably gone bad because heaters do use significant electrical power to operate

The thetmal fuse is the culprit

It could be fault in the unit, how the fuse is sized and also partially fault of the overall design of the NuTone fan

This is my second time having to replace this item, the overload thermal fuse burns out

It’s not resettable and the fuse alone is difficult to replace

The heater coil quickly warms up and if the motor can’t keep up with a trigger happy kid, it will also potentially blow the thermal fuse.)

The thermal fuse blew on our NuTone bathroom Fan/Heater when someone left the heat on all night.