Gas cooktop igniter that will not stop clicking
Cooking
Photo: Magda Ehlers / Pexels Continuous clicking from a gas cooktop is one of the most common calls in this trade and one of the most frequently fixed by the owner. The igniter is doing what it is designed to do; something is telling it the burner has not lit when in fact it has, or it is being triggered when no burner is on at all.
Dry it out first
Moisture around the igniter electrode is the single most common cause, and it is why clicking so often starts right after a spill, a boil-over or a thorough cleaning. Switch the cooktop off, lift the burner caps and grates, and let the area dry completely — a few hours at room temperature, or gentle warm air. A great many cooktops stop clicking on their own once they are properly dry.
Reseat the burner cap
Burner caps sit in one orientation and one only. A cap that has been replaced slightly off-centre after cleaning leaves the flame path wrong, the flame never reaches the sensing point, and the cooktop keeps sparking. Lift each cap, check the underside and the burner base for food debris, and seat it squarely. You should feel it settle rather than sit proud.
Clean the electrode, gently
The igniter electrode is a small ceramic-sheathed pin beside each burner. Cooked-on residue insulates it and weakens the spark. A soft brush and a cotton swab are enough; do not use anything abrasive or metallic, and do not bend the electrode to reposition it, because the gap it sits at is set deliberately.
When one burner clicks and the others do not
That points at that burner’s switch or electrode rather than at the shared spark module. When every burner clicks together, the spark module itself is usually the cause and it is a straightforward replacement. Either way, a cooktop that clicks continuously while a burner is lit is safe to use in the short term but should not be left in that state.
Smell gas? Stop here
Clicking is a nuisance. A gas smell is not. If you can smell gas at the cooktop, do not try to light it, do not operate electrical switches, ventilate the room and call the gas utility first. That is not a repair call and it does not wait.
Frequently asked questions
Why does my cooktop click when no burner is on?
A stuck or wet switch, or water bridging a terminal, can trigger the spark module with everything off. Dry the area thoroughly; if it continues, the switch or the module needs attention.
Can I keep cooking while it clicks?
For a short period, yes, provided there is no gas smell and the burner lights normally. It is not a safe long-term state, and continuous sparking shortens the life of the module.