Smooth glass electric cooktop built into a wooden counter
Generic photo: Max Vakhtbovych · Pexels License

Glass cooktop element stays on high / won't turn off

On knob-controlled cooktops this is almost always an infinite switch with welded contacts. On touch-control cooktops a relay on the control or relay board can stick closed. Note that radiant elements normally cycle on and off at lower settings; that cycling is not a fault.

Single source ~40 min moderateBrands: All

Before you start

  • If an element cannot be turned off, shut the breaker immediately and leave it off until repaired
  • Power off before touching switches or boards

Diagnostic steps

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OnCall Tech is a reference tool for trained technicians and can make mistakes. Always disconnect power and confirm with the manufacturer's documentation before you work.

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Glass cooktop element stays on high / won't turn off · OnCall Tech