Frigidaire Professional Hot Surface Indicator / Switch Fault

Cooktop indicator shows element is on or hot when it is not

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Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

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Possible Causes

Shorted hot surface sensor, Faulty infinite switch internal contacts, Shorted indicator circuit on control board

How to Fix / Troubleshooting

Safety first: Turn off power before accessing controls.

  • Allow full cool-down:
    • Ensure the cooktop is completely cool; some indicators remain on until the sensor cools.
  • Test hot surface switch:
    • On coil or some radiant elements, a separate hot surface switch is mounted on the element.
    • Test for continuity; if stuck closed when cool, replace the hot surface indicator switch / element assembly.
  • Check infinite switch:
    • On some models, the indicator is driven by the infinite switch; replace the infinite switch if it keeps the indicator energized.
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Repair Difficulty

Medium 3/5

Required Part

Hot Surface Indicator Switch
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