Why Won't My Gas Burner Light?

A burner that clicks (or hums, on models with a continuous igniter) but never catches usually means the spark isn't reaching the gas, or the gas itself isn't flowing cleanly through the burner head. Both are usually caused by something physically blocking the path, spilled food, grease, or a cap sitting slightly off-center, rather than a deeper electrical or gas-line fault.

Things to Check Before Calling for Repair

  1. Clean the burner cap and base. Remove the burner cap (the metal piece the flame comes out of) and the burner head underneath. Food spills and grease commonly clog the small ignition port, wipe both down with a damp cloth and a toothpick or pin to clear any blocked holes, then dry thoroughly before reassembling. Moisture left in the ports is one of the most common reasons a burner clicks without lighting.
  2. Reseat the burner cap. If it's even slightly misaligned, the flame ports won't line up with the igniter and gas can leak out sideways instead of lighting. Lift it off and set it back down, making sure it sits flat and level.
  3. Check the igniter for a visible spark. With the burner cap removed, turn the knob and watch (from a safe distance) for a spark at the small ceramic electrode near the burner base. No spark at all usually points to a failed igniter or a wiring issue, not a clog.
  4. Check nearby burners. On many ranges, all the igniters click at once when any knob is turned (this is normal). If every burner fails to spark, the issue is more likely the spark module or wiring, if it's only one burner, the clog or cap-alignment causes above are far more likely.
  5. Confirm the range is fully plugged in and the outlet has power, if it's a gas range with electronic ignition. The igniter needs household electricity even though the flame itself runs on gas, a tripped breaker or loose plug will stop every burner from sparking.

When It's a Safety Issue, Not a Simple Fix

If you smell gas (a distinct rotten-egg odor) at any point, stop immediately. Turn off the burner knob, don't operate any light switches, open a window, leave the gas supply valve alone, and call a technician or your gas utility's emergency line right away. Don't attempt to inspect or repair a gas line or valve yourself.

If the burner cap and ports are clean, correctly seated, and you still get no spark at all, the igniter, spark module, or its wiring has likely failed and needs a technician to replace. This is also true if you smell gas without a spark, since that combination means gas is flowing but not igniting, which should always be diagnosed in person rather than guessed at.

Frequently Asked Questions

Why does my gas burner click but not light?

Almost always food debris or moisture blocking the small ignition port, or a burner cap that isn't seated flat. Clean and dry both first, since that resolves the majority of cases on its own.

Is it safe to keep clicking the igniter if the burner won't light?

A few tries is fine, but stop if you smell gas or after roughly 3-4 seconds of clicking without a flame. Continuing to click lets unburned gas build up in the area, which is a safety risk.

Only one burner won't light, is that a bigger problem?

Usually not, a single burner failing while the others work fine points to a localized clog or cap alignment issue at that burner specifically, not the range's overall gas or electrical supply.

How much does it cost to fix a gas stove igniter?

A cleaning fixes most cases at no cost. An igniter or spark module replacement costs more in parts and labor. See our full appliance repair cost guide for typical stove and range repair ranges.

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Naperville Appliance RepairBackground-checked technicians serving Naperville, IL and DuPage County.