Fix a Gas Stove Igniter That Won't Click or Spark

Gas stove igniters are remarkably simple devices that fail in remarkably predictable ways. That clicking sound you hear when you turn a burner knob is a tiny electrical spark jumping across a quarter-inch gap, igniting the gas flowing from the burner. When it stops working, you're left turning the knob uselessly, maybe grabbing a lighter to get breakfast started. The good news is that nine times out of ten, the igniter itself is fine—it just needs cleaning or drying. A working igniter clicks steadily and produces a visible blue-white spark near the burner cap. When it fails, you'll notice one of three things: continuous clicking with no flame, no clicking at all, or clicking without a spark. Each symptom points to a specific fix, and none of them require replacing the stove. This repair takes an hour and costs almost nothing if the problem is debris or moisture. Even if you need a new igniter assembly, you're looking at a fifteen-dollar part and an easy swap.

1. Expose the Igniter. Turn off all burner knobs and unplug the stove or flip the dedicated breaker. Wait five minutes. Lift off the metal grates and set them aside. Remove each burner cap—these lift straight up once the grate is gone. You'll see the igniter electrode sticking up near each burner, usually a small white or cream-colored ceramic piece with a thin metal tip.
2. Scrub Grease Away. Use a dry toothbrush to scrub around the igniter electrode, focusing on the tip and the grounding bracket next to it. Grease and food residue create a path for electricity that prevents proper sparking. For stubborn buildup, dip a cotton swab in rubbing alcohol and clean the ceramic insulator and metal tip. Let everything dry completely—even a tiny amount of moisture will short out the spark.
3. Evaporate Hidden Moisture. If your igniter clicks constantly even when burners are off, moisture has bridged the switch contacts under the cooktop. Use a hair dryer on low heat to dry the entire burner area for three to four minutes. Pay special attention to the round igniter button switch visible under each burner opening. This is the most common fix for igniters that won't stop clicking after cleaning a boilover.
4. Verify the Spark. Plug the stove back in and turn one burner knob to the light position without replacing caps yet. You should see a bright blue-white spark jumping from the electrode tip to the grounding bracket, accompanied by a steady clicking. Test all burners. If one works and others don't, the problem is localized to those igniters. If none work, check the spark module.
5. Swap the Electrode. If cleaning didn't restore the spark, the electrode itself has likely cracked or the wire connection has failed. Remove the cooktop by lifting the front edge and propping it up with a stick. Locate the wire connection on the bad igniter—it's usually a push-on connector. Pull it free, unscrew the mounting bracket holding the igniter, and swap in the new one. Route the wire the same way the old one went.
6. Find the Real Culprit. When every burner igniter stops working simultaneously, the spark module is the culprit. This small control box lives under the cooktop or behind the control panel. With the cooktop propped open, locate the module—it's about the size of a deck of cards with multiple wire connectors. Check each wire connection for looseness or corrosion. If connections are solid, the module needs replacement.
7. Confirm Full Function. Replace all burner caps in their original positions and set the grates back on the cooktop. Turn each burner to light and confirm immediate ignition with a strong flame. The clicking should stop within two seconds of the flame lighting. Run each burner for thirty seconds to verify stable operation.