LG Gas Stove Burner Won't Ignite: Causes & Fix

An LG gas stove burner that clicks but will not light is usually a simple, fixable problem: the igniter is sparking fine, but something is stopping the gas from catching. The most common causes are a wet or misaligned burner cap, a clogged igniter port, or moisture left after a spill or a cleaning. These are homeowner fixes. The safety rule comes first, though: if it clicks and you smell gas without it lighting, stop and let the gas clear before trying again — do not keep releasing unburned gas.

Quick answer#

Turn the burner off and let everything cool. Lift the burner cap, dry it and the burner completely, clear the small igniter port and the gas holes of debris, and reseat the cap squarely. That fixes most "clicks but no flame" cases. If every burner clicks without lighting, check the gas supply is fully on. If a burner clicks, smells of gas, and will not light, stop and let it clear rather than sparking repeatedly.

Safety first#

A sparking burner that will not light is releasing gas each time it clicks. A few attempts are fine, but if it will not catch and you smell gas, turn the knob off, wait for the odor to clear, and ventilate before trying again. If a gas smell lingers after the burner is off, treat it as a possible leak — stop using the stove and have it checked. Never keep clicking a burner that smells strongly of gas.

Work the causes in order#

1. Wet or misaligned burner cap (most common)#

The burner cap has to sit squarely so the flame can travel from the igniter around the ring. After a spill, a boil-over, or cleaning, the cap can be wet or seated crooked, so the spark cannot light the gas.

1. With the burner off and cool, lift off the cap and the burner ring.
2. Dry both completely — a damp cap is a very common cause right after cleaning.
3. Reseat the cap flat and centered; a cap sitting proud or rotated wrong will click without lighting.

2. Clogged igniter port or gas holes#

Food and grease block the small igniter (the ceramic nub that sparks) and the gas holes around the burner. Clear them with a straightened paperclip or a toothbrush — never a wet cloth that leaves moisture. Make sure the spark can reach the gas.

3. Moisture on the igniter#

Even without a spill, humidity or steam can dampen the igniter so it sparks weakly or the gas will not catch. Let the burner air-dry fully, or run the other burners to warm the cooktop, before trying again.

Causes by likelihood#

The remaining causes — a failed spark module or igniter switch — need a technician.

If all burners click but none light#

When every burner sparks but none lights, the problem is usually gas, not the igniters. Confirm the range’s gas shutoff is fully open. After any gas interruption — a delivery, a shutoff, a new tank — the line may hold air and take a few attempts to purge before the burners light. If gas is confirmed on and burners still will not light, the spark module that fires the igniters may have failed, which is a technician repair.

Which causes need a technician#

• Spark module or igniter switch: if drying, cleaning, and gas supply are all good but it still will not light, the electrical ignition parts are tested and replaced.
• Any persistent gas smell: a gas odor that lingers is a safety issue for a technician or the gas utility, not a DIY repair.

The drying, cleaning, and cap-alignment steps are yours; ignition-module and gas-supply faults belong to a professional.

Preventing ignition problems#

• Dry the burner caps fully after every cleaning before using the stove.
• Keep the igniter and gas ports clear of food and grease.
• Reseat caps squarely each time you clean them.
• Wipe up boil-overs promptly so debris does not bake onto the igniter.

Frequently Asked Questions#

Why won't my LG gas burner light but it keeps clicking?#

Clicking with no flame means the igniter is sparking but the gas is not catching — most often a wet or misaligned burner cap, food debris blocking the igniter port, or moisture on the igniter after a spill or cleaning. Dry and realign the parts first; it fixes most cases.

How do I clean an LG stove igniter?#

With the burner off and cool, lift off the burner cap and use a straightened paperclip or a toothbrush to clear the small igniter port and the gas holes around the burner ring of food and grease. Make sure everything is bone dry before reassembling.

Why do all my LG burners click but not light?#

If every burner clicks without lighting, suspect a gas-supply issue — a shutoff not fully open, or after a gas interruption the line needs a moment to purge air. If gas is confirmed on and they still will not light, the spark module may be at fault.

Is a gas burner that won't ignite dangerous?#

If it clicks and you smell gas but it will not light, turn the burner off, wait for the gas to clear, and do not keep clicking — you are releasing unburned gas. If a gas smell lingers, treat it as a leak and stop until it is checked.