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Hair curlers and other heating appliances typically have a thermal fuse or cutout that can be replaced with parts from an electronic parts store.
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Hair curlers and curling irons are heating devices designed to curl human hair. Both hair curlers and curling irons contain heating elements controlled by a thermostat. In addition, a thermal cutoff or fuse prevents appliance burnouts due to overheating. In a set of curlers, a solid metal plate transfers heat from the element to the warming posts on which the rollers are placed. In contrast, the curling iron is heated by an element located inside the barrel. Both are simple heating appliances and relatively easy to repair—once you figure out what's wrong.
Disassemble and test a curler set (depending on the model):
- Unplug the curler and remove the cover and rollers.
- Unscrew the base or pry open the access plate with a small screwdriver.
- Slide the access plate forward and upward with your thumbs to expose the inner parts.
- Remove the roller trays from the housing and remove the power cord.
- Disconnect the connectors attaching the thermostat to the heating element and remove the thermostat, held on either by clips or screws.
Test the electric components using a multimeter.
Test a thermal cutoff (a small electric component in a wire between one side of the power cord and the heating element):
- Disassemble the hair curler or curling iron as described above.
- Set the multimeter to the RX1 (resistance times 1) scale and clip probes to each side of the thermal cutoff component. The multimeter scale should indicate zero ohms meaning there is no resistance and it is working. If not, take the component to a service center for an exact replacement part.
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