Pro-style range or rangetop: burners click continuously (Wolf, Viking, Thermador)

On pro-style sealed burners the spark module sparks until it senses flame. Moisture, a mis-seated cap, a stuck knob switch, reversed polarity or a poor ground keep it sparking. Normal behaviors (ExtraLow re-ignition on Thermador, a spark or two after power-up) must be ruled out first. Gas-side work is never part of this guide.

Single source ~45 min moderateBrands: Wolf, Viking, Thermador

Before you start

  • Smell gas? Shut off the gas and refer to a licensed gas technician
  • Breaker off before touching switches or the spark module

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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Pro-style range or rangetop: burners click continuously (Wolf, Viking, Thermador) · OnCall Tech