Wiring and componentsQuestion 193 of 1506

A heater element is protected by a thermal limiter. The limiter has melted. What must be done?

  1. Reset it by pressing the button on it
  2. Replace it, as with a fuse
  3. Wait for it to cool and then reuse it
  4. Fit a larger one so it will not melt again
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Correct answer: Replace it, as with a fuse

A thermal limiter melts if the temperature is too high, and it must then be replaced.

Source: Electrical Fundamentals Competency (Industry Training Authority of BC), 5.4: Circuit Protection Devices

Practice wiring and components

Questions last reviewed: 18 October 2026