Error Code Explained
What Does the Wolf FLAME SENSOR Error Code Mean?
Wolf professional rangetop flame sensors (thermocouples or flame rectification probes on select models) confirm burner flame presence after ignition. When the flame sensor does not detect a flame within the required time, the control closes the gas valve as a safety measure — the burner lights briefly then shuts off. This is the appliance performing correctly given a sensor fault.
Root Causes
Common Causes of the Wolf FLAME SENSOR Error Code
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1Failed or Contaminated ThermocoupleThe thermocouple or flame sensor probe is coated in food residue or has failed, preventing accurate flame detection.
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2Burner Cap Misalignment Directing Flame Away from SensorA misaligned burner cap directs the flame away from the thermocouple sensing zone, causing the sensor to report no flame even when the burner is lit.
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3Corroded or Loose Flame Sensor ConnectionThe thermocouple or flame sensor lead connection has corroded or come loose, preventing signal transmission.
Step-by-Step Guide
How to Troubleshoot the FLAME SENSOR Error Code
Safety First: Always disconnect the Rangetop from power before inspecting any internal components. Do not attempt electrical repairs. If in doubt, call a certified technician.
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1Clean the Thermocouple TipWith power off and the burner fully cooled, gently clean the thermocouple tip with fine emery cloth to remove oxidation or cooking residue.
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2Confirm Burner Cap AlignmentReseat the burner cap and confirm it is centered so the flame properly contacts the thermocouple sensing zone.
Professional Service
When to Call a Wolf Technician
Flame sensor failure persisting after cleaning and cap realignment requires professional thermocouple or flame sensor replacement.
FAQ
Frequently Asked Questions — Wolf FLAME SENSOR
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A burner that ignites then shuts off shortly after is the characteristic symptom of thermocouple or flame sensor failure. The gas valve closes when the sensor does not confirm flame within the timeout period. Professional thermocouple replacement resolves this in most cases.
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