Gas stove not working? A Melbourne technician explains the common causes, safe DIY checks you can do yourself, and when to call a licensed professional.

When a gas stove stops working, the cause is usually one of a few ordinary things. The gas supply might be off. The igniter could be wet or dirty after a cleaning. A burner cap may have gone back on slightly wrong, or an electrical part has simply worn out. Most of these take a few minutes to check at home. One or two, you should leave alone entirely.
A fast way to narrow it down before you read further: listen to the burner. If your gas burner clicks but won’t light, the problem is nearly always at the burner itself, which is good news, because that’s the easy end of the repair. Silence when you turn the knob is different. No clicking usually means an electrical fault or a dead igniter.
And if there’s any smell of gas, none of this applies. Turn the supply off and read the next section first.
Is there a gas smell?
If you smell gas, treat it as the priority over everything below.
Turn off the gas at the supply valve behind the cooktop, open windows, and keep ignition sources away. No lighting burners, no flicking light switches. In Victoria, gas work is restricted to licensed gasfitters for good reason, and a suspected leak is squarely their job. Once the room has aired out, leave the appliance off and call a licensed technician to check it before you use it again.
If there’s no gas smell, the checks below are safe to work through yourself.
Why is my gas stove not working at all?
When nothing lights, the cooktop itself is rarely the culprit. The fault tends to sit further back, in the gas or the power feeding it.
Start with the gas. There’s a supply valve behind the stove, and you’ll know it’s open when the handle sits in line with the gas line rather than across it. It’s usually a quarter-turn, and stiff if nobody’s touched it in years. Gas won’t switch itself off. What does happen is a person turning it off and forgetting: a tenant moving out, a tradesperson during a service call, or someone in the house shutting it at the wall to be safe. On LPG, a gas cooktop not igniting can come down to nothing more than an empty bottle or a tap left closed.
Power is the other half. A gas stove not working after a power outage sounds like it shouldn’t happen, given the heat is gas. Here’s why it does. Nearly every modern Melbourne cooktop runs its igniter off mains electricity, so the spark needs power even though the burner doesn’t. Knock the plug loose during a kitchen clean, or trip the breaker, and the burner stops firing. Reset the breaker, push the plug back in firmly, and test it.
Why does my gas burner click but won’t light?
This is the most-searched fault of the lot, and the good news is it’s often a five-minute fix.
When the gas burner clicks but won’t light, you’re getting a spark, so the igniter’s alive, but something’s stopping ignition. Three usual suspects:
| A wet igniter | Moisture is the usual answer when a gas burner won’t ignite after cleaning. A bit of water left on the igniter or burner cap is enough to kill the spark. |
| A clogged burner port | Grease and dropped food work their way into the small holes around the burner head, and once they’re blocked, the gas can’t flow properly. |
| A misaligned burner cap | These come off for cleaning and don’t always go back the same way. Sit the cap wrong, off its locating slots, and the burner won’t catch. |
Work through them in order. Dry the area thoroughly and leave the caps off for half an hour or so. Refit each cap squarely into its slots. If a port’s blocked, clear it gently with a toothbrush and a little methylated spirits, or a paperclip for the holes. Never a toothpick, since the tip can snap off inside.
If you’ve dried it, cleaned it, reseated the cap, and the gas stove is still clicking but not lighting, the igniter or spark module is the next thing to look at, and that’s where DIY ends.
Why won’t my gas cooktop ignite after cleaning?
Almost always moisture, almost always temporary.
A gas cooktop not igniting right after you’ve wiped it down usually means the igniter or burner ports are still damp. Dry everything properly and give it time before testing. The same applies to a gas stove igniter that’s wet after cleaning. Patience fixes it more often than a call-out does.
If it’s bone dry and still won’t spark, that’s a different problem, covered below.
Why is the flame yellow or orange instead of blue?
A gas burner not producing a blue flame is worth dealing with the same day you notice it. Blue is the flame you want. Yellow or orange tells you combustion isn’t complete, and the usual reason is a burner that’s partly clogged and choking the gas flow.
There’s a safety angle here that goes beyond cooking. Incomplete combustion can produce carbon monoxide, which is why a lazy yellow flame isn’t something to cook around for weeks. Pull the burner heads, ports and caps, wash them in warm soapy water with a de-greaser, dry everything properly, then check the flame colour again.
A flame that stays yellow after all that needs a technician to inspect the burner and the gas-air mixture. Don’t keep using it in the meantime.
No spark and no clicking: what’s the cause?
Total silence when you turn the knob points to the spark module more than anything else. The spark module is the part that powers the igniters, so when it fails, you get exactly that: no clicking, no spark, no ignition. This isn’t a clean-and-dry fix. The module has to be replaced by an appliance technician, though on most Bosch, Westinghouse, Smeg and Fisher & Paykel cooktops, it’s a routine job rather than a reason to replace the whole unit.
Why does the burner light, then go out when I let go of the knob?
That’s the classic signature of a failing thermocouple.
The thermocouple senses the flame and keeps the gas valve open. When it wears out, and they do with age, the burner lights while you hold the knob, then drops the moment you release it. Replacement is a straightforward job for a technician and far cheaper than replacing the cooktop.
Commercial gas cooktop not igniting?
Commercial kitchens lose money by the minute when a cooktop drops out mid-service, so it’s worth treating separately.
The faults overlap with domestic units, but the stakes are higher. The most common commercial gas cooktop troubleshooting issues we’re called for: burners choked with debris from heavy use, a worn ignition set after years of daily firing, and a non-stop ticking where the burner won’t catch because the path’s blocked or damp. A commercial gas cooktop not igniting during a busy lunch is rarely a dead appliance. More often, it’s a clean, a reseated cap, or an ignition part that’s reached the end of its life.
For a venue, the honest advice is to get it diagnosed fast rather than nursing it through another service. A burner that’s only half-lighting wastes gas and slows the line.
When should you stop and call a licensed gas fitter?
Here’s the line we’d draw, plainly.
Cleaning burners, drying igniters, resetting caps, resetting a breaker: all fine for a homeowner. Anything involving the gas supply line, a pilot light on an older stove, the spark module, the thermocouple, or a persistent gas smell is licensed work. In Victoria, gas appliance work has to be carried out by a licensed gas fitter, and Energy Safe Victoria sets the safety standards for a reason. It’s not us being cautious for the sake of it; it’s the law, and it’s the difference between a clean repair and a real hazard.
If you’ve tried the safe checks and the cooktop still won’t behave, that’s the point to book a technician.
How much does a gas cooktop repair cost in Melbourne?
Fair question, and one most repairers dodge.
As a rough guide for Melbourne, expect a call-out and diagnostic fee somewhere under a few hundred dollars , which covers a technician identifying the actual fault before any parts are ordered. An igniter or spark module replacement commonly lands in the under 500 Aud range once parts and labour are in. A thermocouple replacement usually sits a little lower. These are approximate. The brand, the part, and whether it’s carried in the van or needs sourcing all move the number.
What we’d say is this: get the quote before the work starts, not after. Diagnosis first, fixed price, then your call on whether to go ahead.
If your gas cooktop’s still not igniting after the safe checks, it’s a quick job for a licensed technician. We service gas cooktops across Melbourne, including Clayton, Preston, Ringwood, Frankston and the suburbs around them, and carry common Bosch, Westinghouse, Smeg and Fisher & Paykel parts in the van. Give us a call and we’ll sort it.
Frequently asked questions
Q1 – Why is my gas stove not working even though the burner clicks?
The clicking tells you the igniter’s doing its job. So if there’s spark but no flame, the cause is something smaller. A damp igniter is a frequent one, especially straight after cleaning. A clogged port or a burner cap that’s slipped off its slots will do it too. Dry everything, set the cap back properly, run a toothbrush through the ports. If it’s still clicking away with no flame, the igniter or spark module has likely failed, and that’s a technician’s call.
Q2 – What should I do if my gas stove won’t light at all?
Confirm the gas valve is open and the cooktop has power. Both matter, because the igniter runs on electricity, even though the burner is gas. Once you’ve ruled those out and it still won’t fire, don’t push it any further yourself. Anything involving the gas line belongs with a licensed technician.
Q3 – Can a dirty burner stop my gas cooktop from lighting?
It’s one of the most common reasons a gas cooktop won’t light. Grease and food residue build up around the burner and either block the gas or smother the spark. Clean the burner heads, ports and caps, and most of the time the burner comes straight back. One thing people miss: it has to be completely dry before you test it. A damp igniter simply won’t spark, no matter how clean the burner is.
Q4 – Is it dangerous if my gas stove stops working suddenly?
A sudden failure is worth taking seriously because it can point to a supply fault, a worn component, or a leak. If you can smell gas, shut the supply off at the valve, open the windows, and stay away from the appliance until a licensed gasfitter has cleared it. And even with nothing on your nose, a gas appliance that’s cut out without explanation shouldn’t go back into service before someone qualified has looked at it.
Q5 – Why does only one burner work when the others don’t?
When the rest of the cooktop is fine and just one burner refuses, the problem is local to that burner. It’s own igniter, a blocked port, a gas feed issue on that line. Not a big repair. Worth booking sooner rather than later, though, before whatever’s behind it spreads to the burners next to it.
Q6 – How long does a gas cooktop repair take?
Most jobs are done in a single visit when the part’s on the van, which covers the common ones: igniters, thermocouples, spark modules. The exception is an older or less common model that needs a part ordered in. That adds a few days, and you’ll hear about it up front rather than after the work starts.

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