XT Appliances · Warren
Gas burner clicks but won't light
Most often the burner cap is sitting crooked or its ports are clogged from a spill, which is a cleaning job, not a part.
Turning a gas burner knob to LITE does two things at once. It lets gas through to that burner, and a small switch behind the knob tells the spark module to fire. The module sends a spark to the igniter beside the burner, which is the clicking you hear, and the spark lights the gas coming out of the ports under the cap. Once you turn the knob past LITE, the clicking should stop.
If you hear clicking and can see a spark at the burner but get no flame, or only part of the ring lights, the spark is doing its job. The gas isn't reaching it properly, and that almost always means the cap is sitting crooked or the ports are clogged with something that boiled over. Seat the cap flat and centered, clear the ports, and most of these burners light normally again. That's a cleaning job, not a part.
If one burner won't spark while the others do, or its spark jumps to the grate instead of the burner, look at that burner's igniter, the small ceramic tip beside it. Water or food on it from a spill or a fresh cleaning is the common reason, and it usually comes back once it's fully dry. A cracked ceramic won't recover and needs a new igniter.
If no burner clicks at all, the fault is something they all share. That points at the spark module or the power feeding it, not at any one igniter.
Clicking that won't stop
Nonstop clicking, even with every knob off, usually comes from one of two things. Moisture after a spill can keep the module firing until the cooktop dries out. Otherwise, one knob's switch has stuck closed and keeps calling for a spark. Turning each knob firmly to OFF, one at a time, often finds it: the knob that stops the clicking has the bad switch.
Flame color
A healthy burner flame is blue and even all the way around. A yellow or sooty flame means the gas isn't burning completely, which can give off carbon monoxide. If a burner still burns yellow after you've cleaned and reseated the cap, stop using it and have it checked.
On the visit we watch the spark at each burner, check the igniters for cracks, and test the knob switches and the module before replacing anything.
What it usually turns out to be
- Cleaning or upkeepBurner cap off-center or clogged portsThe spark fires but the gas can't reach it in the right mix. The tell: you hear clicking and see the spark, but get no flame or only part of the ring.
- Cleaning or upkeepWet or dirty igniterAfter a spill or a cleaning, moisture on the small ceramic igniter sends the spark to the grate or keeps it from firing. One burner won't light while the rest do, and it often recovers once dry. A cracked one needs replacing.
- PartSpark moduleOne module makes the spark for every burner. If none of them click or spark, it's the module or its power, not a single igniter.
- PartIgniter switch on one knobEach knob has a small switch that calls for a spark. One that sticks closed keeps the clicking going even with every knob off.
Try this first
- With the cooktop off and cool, lift each cap, wipe off any spill, and set it back flat and centered on its base.
- Clear any clogged burner ports with a straight pin, and let everything dry before you try again.
- If it started after a spill or a cleaning, give the burner and its igniter time to dry fully.
- If it won't stop clicking, turn each knob firmly to OFF, one at a time, and note which one stops it.
Stop using it and call now if
- If you smell gas, leave the house and call your gas company from outside. Don't switch lights or appliances on or off.
- A flame that still burns yellow or leaves soot after the cap is seated and clean.
- A burner that won't turn off.