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⚠ FLAME SENSOR Medium Severity Wolf Rangetop

Wolf Rangetop FLAME SENSOR Error Code: What It Means & How to Fix It

Authoritative diagnosis guide — causes, step-by-step troubleshooting, and when to call a certified Wolf technician.

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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

  • 1
    Failed or Contaminated Thermocouple
    The thermocouple or flame sensor probe is coated in food residue or has failed, preventing accurate flame detection.
  • 2
    Burner Cap Misalignment Directing Flame Away from Sensor
    A 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.
  • 3
    Corroded or Loose Flame Sensor Connection
    The 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.

  1. 1
    Clean the Thermocouple Tip
    With power off and the burner fully cooled, gently clean the thermocouple tip with fine emery cloth to remove oxidation or cooking residue.
  2. 2
    Confirm Burner Cap Alignment
    Reseat 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

⚠ Stop DIY if any of these apply

Flame sensor failure persisting after cleaning and cap realignment requires professional thermocouple or flame sensor replacement.

Estimated Repair Cost
$130 – $240
Exact quote before any work begins. No surprises.
📞 844-405-6853

FAQ

Frequently Asked Questions — Wolf FLAME SENSOR

  • 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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