Kenmore Cooktop BURNER-WON-T-LIGHT Error: Burner Sparks But Gas Will Not Ignite
The kenmore cooktop burner-won-t-light error is a fault signal from the control board — this guide walks through what it means, common causes, and safe diagnostic steps. What Does Kenmore Cooktop BURNER-WON-T-LIGHT Mean? BURNER-WON-T-LIGHT on a Kenmore gas cooktop describes the condition where the spark igniter is working — you can see the arc and […]
Quick Assessment
Answer to continue safely
Is it safe to keep using?
Maybe. A cooktop with BURNER-WON-T-LIGHT on one burner can be used if that burner can be lit with a long-reach lighter held to the ports before the gas knob is turned on. However, do not leave the gas valve open while searching for an ignition source — always have the lighter ready first. Resolve the underlying cap or port blockage before relying on the burner for daily use.
Can I reset the code?
No. BURNER-WON-T-LIGHT is a mechanical condition — a misaligned cap, blocked port, or insufficient gas pressure — that is not affected by any electrical reset. The physical cause must be corrected to restore reliable ignition.
When to stop immediately?
Stop if you notice: Gas is detectable by smell at the burner after 5 seconds of knob activation with no flame — turn off the gas and ventilate before retrying, All burners fail to light despite confirmed spark and the gas shut-off valve being fully open — indicating a gas supply or regulator issue.
Symptoms You May Notice
Spark is visible at the electrode but no flame appears at the burner ports
The electrode arc is working correctly — the spark can be seen and heard — but no blue flame lights on the burner head ring. This distinguishes BURNER-WON-T-LIGHT from NO-SPARK (where no arc occurs at all).
Burner eventually lights after 10–20 seconds of continuous sparking
Delayed or sluggish ignition — where holding the knob in the ignite position for an unusually long time eventually produces a flame — indicates a partially blocked burner port or a misaligned burner cap rather than a complete ignition failure.
Burner lit previously but stopped lighting after a cleaning or boil-over
The most common trigger for BURNER-WON-T-LIGHT is a misaligned or clogged burner cap following cleaning or a spill event — the cap is replaced in the wrong position or burner ports are filled with food debris, preventing the gas-air mixture from reaching the spark location.
Flame lights only on one side of the burner ring
When ignition finally occurs, the flame appears on only part of the burner head and travels slowly around the ring or never completes the circle, indicating partial port blockage or a cap seated off-center over the orifice.
Possible Causes
Misaligned or incorrectly seated burner cap
The burner cap is not sitting flat and level on the burner base — even a 1–2 mm tilt is enough to misalign the burner ports away from the spark electrode gap, preventing ignition. This is the most common cause after cleaning or a spill.
DIY PossibleClogged burner ports or burner head orifice
Boiled-over food, grease, or cleaning product residue has blocked one or more of the small gas-exit ports around the burner ring, preventing adequate gas flow to the area near the spark electrode.
DIY PossibleWeak or inadequate gas pressure at the burner valve
Low gas supply pressure — from a partially closed shut-off valve, a failing pressure regulator, or high simultaneous demand on the household gas system — prevents adequate gas flow for ignition even though a small amount of gas is detectable at the burner.
Requires ProfessionalSafe Checks You Can Do
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1
Remove, clean, and correctly reseat the burner cap
Lift the burner grate off the cooktop. Lift the burner cap straight up — it sits unsecured on the burner base. Wash the cap and burner base in warm soapy water, then use a toothpick or a straightened paper clip to clear each port hole around the burner ring of any food or grease residue. Dry completely before replacing. When replacing the burner cap, press it down flat and confirm it sits level with no rocking — some models have a locating pin or notch that must align with a corresponding mark on the burner base.
Burner caps that feel loose or rock slightly when pressed are a common source of BURNER-WON-T-LIGHT on Kenmore gas cooktops. If the cap is warped from a previous high-heat event, replacement caps are available from SearsPartsDirect by model number for from $15.
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2
Confirm gas supply and verify other burners light normally
Test all other burners on the cooktop to confirm they light without issue. If all burners are slow to light or require extended sparking time, the gas supply pressure or the regulator may be the issue — check that the main gas shut-off valve behind or beneath the cooktop is fully open (handle parallel to the pipe). If only one burner has trouble, the cause is isolated to that burner's cap or ports.
If you have recently had work done on the household gas system or replaced another gas appliance, confirm the cooktop supply valve was fully reopened afterward — a partially closed valve produces exactly the pattern of adequate gas smell but sluggish ignition.
When to Call a Professional
Contact a qualified technician if:
- Burner cap is seated correctly and all ports are clear, but the burner still does not light — indicating a failed gas valve or low regulator pressure
- Gas pressure test at the burner manifold shows pressure below the minimum specification for the model
- Flame lifts off the burner ports (floats) rather than burning at the port ring — indicating excessive gas pressure from a failed regulator
Need Professional Help?
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