All of the steamers have a thermal fuse to protect the unit from overheating. In order to locate the thermal fuse, you will need to disassemble the unit and find the steam tank. The thermal fuse is attached to the steam tank and once the unit overheats, the thermal fuse will need to be replaced. The thermal fuse has a temperature rating on it. You will want to replace the thermal fuse with the same rating. This is information about the thermal fuse: https://en.wikipedia.org/wiki/Thermal_cutoff
All of the steamers have a thermal fuse to protect the unit from overheating. In order to locate the thermal fuse, you will need to disassemble the unit and find the steam tank. The thermal fuse is attached to the steam tank and once the unit overheats, the thermal fuse will need to be replaced. The thermal fuse has a temperature rating on it. You will want to replace the thermal fuse with the same rating. This is information about the thermal fuse: https://en.wikipedia.org/wiki/Thermal_cutoff