Why won't my gas stove burner light?
Updated August 2026
A single gas burner that clicks or stays dead while the others light is almost always a clogged burner port or a wet, misaligned burner cap breaking the spark-to-gas path. Both are free to fix: clean the little holes around the burner ring, dry everything, and reseat the cap squarely. When cleaning and reseating do not work, the trouble is a dirty igniter electrode or a failed spark module, covered below.
Safety first: gas is the reason to be careful here. If a burner clicks without lighting and you smell rotten-egg gas, turn the knob off, wait several minutes, and let the room air out before trying again, since unignited gas can pool and flash. Never lean over a burner while repeatedly clicking it. If the smell is strong, if it comes from more than one burner, or if you hear hissing with the knobs off, leave the house and call your gas utility from outside. Keep a CO detector in the kitchen area, and disconnect power before pulling a burner for a deep clean.
Causes, most likely first
| Cause | How likely | The fix | Typical cost |
|---|---|---|---|
| Clogged burner ports | Most common | Food and grease plug the tiny flame holes around the burner ring. Clear each with a straightened paperclip or a needle once cool. | Free |
| Wet or misaligned burner cap | Most common | A cap sitting crooked or still damp after cleaning breaks the flame path. Dry it and seat it flat on the base. | Free |
| Dirty igniter electrode | Common | The white ceramic igniter is greasy or crusted. Wipe it with rubbing alcohol on a cotton swab so the spark can jump. | Free |
| Cracked spark igniter or electrode | Occasional | If it only clicks with no visible spark, the electrode cracked or a wire came loose. Replace the igniter. | $10–40 |
| Bad spark module or switch | Occasional | One central module fires all the igniters; when it or a burner switch fails, lighting stops. A tech replaces it. | $80–150 |
Check these first
- Confirm the other burners light. If they do, you have a burner-specific problem, not a gas-supply issue.
- Lift off the burner cap and grate, and clean the ring of flame ports with a paperclip; grease plugs them fast.
- Make sure the cap is bone dry and seated flat and centered. A cap knocked askew after cleaning is a common miss.
- Wipe the ceramic igniter tip with rubbing alcohol and let it dry so the spark can arc cleanly.
- Watch as you turn the knob: a steady click with a visible blue spark means the igniter works and gas flow or a plugged port is the issue.
Prevent it next time
Burners that light on the first click stay that way with a quick wipe-down after spills. Clean the caps, grates, and flame ports whenever they get crusted, and keep the ceramic igniters free of grease so the spark jumps cleanly. Boil-overs are the number-one cause of clogged ports, so cap and cool the burner and clear it the same day. There is no fixed service interval like a filter, but a monthly deep clean of the cooktop keeps all four burners reliable. When ignition problems persist across several burners on a range past its 15-year typical life, weigh a repair against a replacement.
When to call a pro
Call a pro when a clean, dry, properly seated burner still will not light, when you smell gas that does not clear, or when no burner sparks (a failed spark module or wiring). A range service call is $90–150, an igniter or electrode swap $80–200, and a spark-module job about $100–250. Always treat a persistent gas smell as urgent: shut off the supply and call the gas utility or a licensed technician rather than clicking the igniter again.
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Stop chasing symptoms, free for 30 daysFrequently asked questions
Why is my gas burner clicking but not lighting?
Constant clicking means the igniter fires but the spark never reaches the gas. The usual reasons are a wet or misaligned burner cap breaking the path, a clogged igniter or flame ports, or moisture left behind after a spill. Turn the burner off, dry the cap and base completely, clear the ports with a pin, and seat the cap flat. If it keeps clicking without catching, see our guide on a gas stove that clicks constantly, since the electrode or spark module is likely failing.
Is it safe to use a lighter to light a gas burner that will not spark?
You can light a stovetop burner with a long-reach lighter or match as a short-term workaround, but do it carefully: turn the knob to light and bring the flame in immediately so gas does not build up first. Never do this with an oven burner, where gas can pool in the enclosed space and flash. If the electric igniter has failed, treat manual lighting as a stopgap and replace the igniter, because a burner you cannot shut off and relight cleanly is a hazard.
My whole gas stove won't light. What's wrong?
When no burner will light, look past the individual burners to something they share. First check that the range is plugged in and the breaker is on, since the spark igniters need electricity even on a gas stove. Then confirm the gas supply valve behind the unit is open and that the propane tank or gas service is not empty. If power and gas are both present and still nothing sparks, the shared spark module or its wiring has failed, which is a technician repair.