Gas Hob Ignition Problem? Here’s What’s Really Going On

When your gas hob ignition problem, a failure in the system that lights the burner flame on a gas cooktop. Also known as gas stove ignition failure, it’s one of the most common kitchen appliance issues—especially in older homes where the spark system has worn out over time. You turn the knob, hear a clicking sound, but no flame. No smoke. No heat. Just silence. It’s frustrating, and it’s not always a sign you need a new hob. More often, it’s a simple part that’s dirty, misaligned, or broken.

The igniter, the component that generates sparks to light the gas is usually the culprit. Over time, grease, food bits, and moisture build up around it, blocking the spark path. A gas valve, the mechanism that releases gas when the knob is turned can also stick or fail to open fully, cutting off fuel even if the spark works. And don’t overlook the thermocouple, a safety sensor that confirms the flame is lit before allowing gas to flow. If it’s dirty or worn, the hob won’t light—even if everything else is fine.

Most gas hob ignition problems aren’t dangerous if handled correctly. But they’re not DIY-friendly for everyone. You don’t need to replace the whole cooktop. Often, cleaning the igniter with a toothbrush and rubbing alcohol fixes it. Sometimes, adjusting the spark gap by a millimeter makes all the difference. Other times, a $20 replacement igniter or thermocouple does the job. But if you smell gas, hear hissing, or the problem keeps coming back after cleaning—stop. That’s when you call a pro. Gas isn’t something to guess with.

What you’ll find below are real fixes from people who’ve been there. Posts that show you exactly how to check your igniter, test the gas flow, and tell if your hob’s worth saving—or if it’s time to upgrade. No fluff. No theory. Just what works in a Weymouth kitchen after a long day of cooking.