Gaggenau Open Heating Element or Infinite Switch Failure

Electric radiant cooktop zone does not heat, indicator light may be on

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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

Burned-out radiant heating element, Faulty infinite switch or power control, Loose wiring at element terminals, Failed relay on control board (for electronic models)

How to Fix / Troubleshooting

Safety: Disconnect power at the breaker before removing the cooktop or accessing internal components.

  • Check other zones: If other zones heat normally, the issue is likely with the specific heating element or its control.
  • Access element (technician): Remove the cooktop from the counter and take off the bottom cover to access the radiant elements.
  • Inspect element: Look for visible breaks or burn marks on the element coil.
  • Test continuity: Use a multimeter to test the element for continuity. An open reading indicates a failed element.
  • Check switch/control: If the element is good, test the infinite switch or electronic power control for that zone and replace if defective.
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Repair Difficulty

Hard 4/5

Required Part

Radiant Heating Element
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