The Wolf gas range ignition system has three main components: the igniter (at each burner, makes the spark), the spark module (electronics under the cooktop that triggers the spark), and the gas valve (lets gas through). When ignition fails, it's almost always one of those three.
Diagnosing by symptom
Symptom 1: One burner clicks but won't light
Most likely: dirty or wet igniter on that burner. Spark is happening but isn't strong enough to ignite the gas, or the gas isn't flowing because that burner's valve isn't opening.
What to try yourself:
- Turn off the burner. Remove the burner cap and burner head.
- Look at the igniter (small ceramic-tipped electrode). Is it covered in food debris or grease?
- Gently clean it with a dry brush or toothpick. Don't soak — water can short the igniter.
- Let it air-dry overnight. Try again.
If it still clicks but won't light, the fault is usually the igniter or the gas valve. Which one it is changes the repair, so the cost is quoted on site, in writing, after diagnosis — call us with your model number and we'll confirm which before we dispatch.
Symptom 2: One burner ignites then goes out after a few seconds
Most likely: the flame sensor (thermocouple inside the gas valve assembly) isn't detecting flame. The safety circuit kills the gas after a few seconds when it doesn't see heat.
Causes:
- Igniter (still firing) is on the wrong location — flame is lit but the sensor is too far from it
- Sensor itself is failed
- Gas valve flame-prove circuit failed
Cost to fix: quoted on site, in writing, after diagnosis.
Symptom 3: All burners click but none light
Most likely: gas supply issue OR spark module is firing but valves aren't opening.
What to try yourself:
- Check the gas shutoff valve on your gas line. Sometimes it gets bumped closed during cleaning behind the range.
- Check whether other gas appliances in your home work. If nothing has gas, building/utility issue.
- If you have gas elsewhere but the range gets none: gas line to the range is shut or kinked.
If gas is flowing but there's no ignition, it's usually spark module failure. The cost depends on your model and is quoted on site, in writing, after diagnosis — call us with your model number for the specifics.
Symptom 4: All burners click but only some light
Most likely: the gas pressure is low (regulator issue) OR specific burner valves aren't opening enough.
Diagnostic requires gas pressure measurement at the manifold. Not DIY.
Symptom 5: Burner ignites only after several clicks
Most likely: weak igniter. The spark is there but underpowered, or the gap is off. Won't ignite immediately because the spark plasma is too weak. Will get worse over time — replace before it stops working entirely.
Cost: igniter replacement is a relatively simple job; the exact cost depends on your model and is quoted on site, in writing, after diagnosis.
Symptom 6: Continuous clicking even when burner is off
Most likely: spark module locked in continuous-spark mode. Usually water inside the spark module (from cleaning), or a switch stuck closed.
What to try yourself: Turn off all knobs. If clicking continues, the module needs replacement. Trip the breaker to silence the unit while you wait for service.
Cost: spark module replacement depends on your model and is quoted on site, in writing, after diagnosis — call us with your model number and we'll explain the job before we dispatch.
When NOT to DIY
You shouldn't try to repair the gas valve or do anything that requires opening the gas piping. This is a job for a certified technician with the right tools and safety equipment — which is exactly what we are.
You also shouldn't try to "test" if gas is leaking by smell or with a flame. If you smell gas, turn off the main valve to the range and call us.
Parts we commonly carry
For Wolf ignition repairs, our trucks carry:
- Surface burner igniters for all common Wolf series (GR, DF, SRT)
- Spark modules for current and legacy Wolf models
- Burner caps and burner head assemblies (most common sizes)
- Gas valves for the most common burner sizes
Most Wolf ignition repairs finish on the first visit.
Frequently Asked Questions
Can I light my Wolf burner with a match while waiting for repair?
Only if you've fully turned the burner valve and gas is flowing. Approach with a lit match from the side (not from above). Turn the gas off immediately if the flame doesn't catch within a second or two — don't let unburned gas pool. Better to skip the burner until repaired.
Is it safe to use the oven if the cooktop burners won't ignite?
On gas-only ranges (GR series), the oven uses its own igniter (a glow-bar igniter typically), separate from the cooktop spark system. If only the cooktop is affected, the oven usually works fine. On dual-fuel ranges (DF series), the oven is electric — completely independent of cooktop ignition.
My burner clicks endlessly even when off. Should I worry about gas?
The spark is happening but no gas should be flowing (the valves are mechanical — closed when knob is off). The risk isn't gas leak, it's wasted electricity and an annoying noise. But it indicates a failed component and should be fixed soon.
How long do Wolf igniters typically last?
8–12 years with normal use. Spills that send water onto the igniter shorten that. If you're seeing inconsistent ignition on multiple burners, it's often time to replace all the igniters as a set.
Trusted by NYC owners since 2011
Sub-Zero & Wolf Repair Specialists is an independent NYC-based appliance repair company focused exclusively on Sub-Zero and Wolf. Trusted by 5,000+ NYC clients since 2011 from Manhattan, Brooklyn, Westchester, and Bergen County owners.
- Flat $125 service call credited toward the repair
- OEM Sub-Zero and Wolf parts only — never aftermarket substitutes
- 180-day labor warranty + 1-year OEM parts warranty in writing before we leave
- Fully insured with COI emailed to your building manager within 30 minutes of booking
- Same-day Manhattan & Brooklyn dispatch for calls before 1 PM
- Factory-trained technicians who specialize in these two brands only