Symptoms
- Clicking continues after burner lights
- Clicking happens with all knobs off
- Clicking from one burner spreads to others (some models share a module)
- Clicking stops only when unplugged
Likely causes
- CommonSpilled liquid or moisture on the switch contactsWater bridges contacts and signals the module to keep sparking.
- CommonBurner cap not seated correctlyA loose or tilted cap can keep the ignition switch triggered.
- PossibleStuck or sticky knob switchFood residue inside the knob switch can keep it in the 'spark' position.
- Less commonFaulty spark moduleThe electronic module itself can fail and send a constant signal.
What to do
- Turn off all burner knobs and, if safe, unplug the range or switch off its breaker to stop the clicking immediately.
- Dry the cooktop thoroughly, especially around the knobs and burner bases, since moisture is the most common cause.
- Remove and reseat each burner cap so it sits flat and centered.
- Wiggle each knob gently while off to see if one feels stuck or gritty compared to the others.
- Plug the range back in (or restore power) and check if the clicking has stopped.
- If clicking returns with a specific knob, that knob's switch is likely the cause and should be inspected by a technician.
Tools and parts
- Dry cloth
Range burner ignition switchSearch: “gas range spark switch replacement”
When to call a pro
If drying and reseating parts doesn't stop the clicking, or it keeps happening, have a technician check the ignition switch and spark module.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.