Gas Stove Burner Won't Light? Clean, Dry, Stay Safe

Gas stove burner won't light most often because the burner ports are clogged with food, the igniter is dirty or wet, or the burner cap is misaligned. If you smell gas, do not keep trying: turn off the burners, leave the area and call your gas utility.

If the air is clear, clean and dry the parts, reseat the cap, and try again.

Gas stove burner won't light: safety first

• Smell gas? Turn all knobs off, avoid switches and flames, ventilate if safe, leave, and call the gas utility from outside.
• Do not keep clicking for a long time if the burner does not light, because gas can build up.
• Keep hair, sleeves and flammable items away when lighting a burner by hand.

Quick facts: gas stove burner won't light
Time needed	15 to 30 minutes
Tools	Soft brush, toothbrush, pin or needle for port holes, cloth
Difficulty	Easy
Stop and call if	You smell gas, the flame is yellow and sooty, or clicking never stops

Why a burner fails to light

Symptom	Likely cause	Fix
Clicks but no flame	Clogged ports, dirty or wet igniter, misaligned cap	Clean, dry, reseat
No clicking at all	No power, failed igniter switch or module	Check power; technician
Lights unevenly	Blocked ports	Clean the ports
Flame is yellow or orange	Dirty burner or air mixture problem	Clean; if persistent, technician
Burner clicks after lighting	Moisture or a misaligned cap, switch fault	Dry and reseat; technician
Whole stove clicks continuously	Wet or dirty igniter, spill	Dry and clean; technician

Cleaning steps

1. Turn off all burners and wait until the stove is cool.
2. Lift off the grates and burner caps.
3. Clean the cap and head with warm soapy water and a toothbrush. Dry them thoroughly.
4. Clear the burner ports (the small holes around the head) with a pin or needle, taking care not to widen them.
5. Clean the igniter, the small ceramic spark electrode. Wipe it with a damp cloth or a cotton swab and dry it.
6. Reseat the burner cap so it sits flat and centred on the base. A tilted cap stops the flame lighting.
7. Try again once all parts are dry.

Lighting a burner by hand

If the igniter does not spark or the power is out, you can often light a surface burner with a long match or lighter. Check your manual first. Hold the flame near the burner head, then turn the knob to light. Do this only if you smell no gas. Do not do this on any burner that smells of gas, and never leave a lit match near hair or loose clothes.

Moisture and spills

Boiled-over liquid in the head or under the cap is a leading cause of a gas stove burner won't light. The ports and igniter may be wet or blocked. Dry thoroughly with a cloth, then use a hair dryer on low if needed. After a deep clean, wait until every part is completely dry before reassembling, because trapped water in the ports can stop the flame for an hour or more. Wipe spills quickly after cooking.

Persistent faults

A faulty spark module, igniter switch or gas valve needs a technician. If the stove clicks nonstop, or several burners fail, suspect the module. If the flame is yellow and sooty despite cleaning, call for service because it may indicate poor combustion and carbon monoxide.

When to call a professional

Call if you smell gas, if cleaning does not help, if the igniter is cracked, or if burners behave strangely. Tell the technician which burners fail, whether they click, and whether the flame colour is blue or yellow, because those details narrow down the faulty part before they arrive.

Gas stove burner won't light: safe first steps

When a gas stove burner won't light, turn the knob off first and wait a moment before trying again, so any gas that has collected can clear. Check that the burner cap sits flat and that the ports are clear, because a cap that is out of place blocks the spark path. Dry the igniter electrode if it is wet from a spill. A gas stove burner won't light after cleaning when the igniter itself is cracked or the wiring is loose. In that case, stop using the burner and call a technician, since the gas valve and the wiring are involved.

If the gas stove burner won't light on one position only, the problem is usually that burner rather than the whole stove. Never hold a lit match near the burner to force it to light, and never leave a burner turned on without a flame.

If the gas stove burner won't light even after clearing the ports, the igniter is the next suspect.

Related reading

• Gas Oven Won't Light? Safe Checks and When to Call a Technician
• Electric Stove Burner Not Working? Coil, Socket and Switch Tests
• Oven Not Heating? Bake Element, Sensor and Fuse Checks
• How to Relight a Water Heater Pilot Light Safely, Step by Step

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