Lighting a gas burner takes three things at once: a spark, a flow of gas, and a clean path for them to meet at the burner head. When a burner will not light, one of those three is missing, and the way it fails tells you which. A burner that clicks steadily has a spark but no flame, so the problem is usually gas flow or a fouled cap. A burner that stays silent has lost the spark itself, which is the igniter or the module. On a Wolf range in a Erie kitchen, the thin air at altitude also matters, because the burner has to be tuned for the right air-to-gas mix to light cleanly at 9,600 feet.
Most Common Causes
- Wet or misaligned burner cap: a cap that is damp or sitting crooked breaks the spark path, so the burner clicks without lighting.
- Clogged burner ports: spilled food or grease blocks the tiny gas ports around the burner head.
- Failed spark igniter: the ceramic electrode cracks or fouls and stops producing a spark.
- Bad spark module: the module that fires all the igniters fails, often taking several burners at once.
- Weak gas valve: a valve that will not open fully starves the burner of gas.
Notes by Brand
The likely cause shifts with how each brand builds its cooking suite:
- Wolf: dual-fuel and gas ranges use a spark module feeding each burner; a single wet cap makes one burner click, while all burners clicking points to the module.
- Viking and La Cornue: these are diagnosed by symptom, and we test the igniter, module and valve directly rather than by code.
- Thermador and Bosch: sealed burners rely on clean caps and a healthy module, and a fouled port is a frequent cause of a burner that clicks but will not catch.
- Monogram and Dacor: spark ignition and gas valves are checked in sequence, and any control fault that blocks ignition is confirmed before parts are ordered.
| What You See | Likely Cause | What the Fix Involves |
|---|---|---|
| One burner clicks, no flame | Wet cap or clogged ports | Dry and clean, realign the cap |
| All burners click, none light | Spark module fault | Replace the spark module |
| No click at all | Failed igniter or wiring | Replace the igniter, repair wiring |
| Weak or slow to light | Gas valve or altitude tuning | Test the valve, set for elevation |
Safe Checks Before You Book
Turn the burner off, let it cool, and make sure the cap is dry and seated correctly. Clean any food from around the burner ports with a soft brush. If you smell gas that does not clear, shut off the burner, ventilate the room, and do not use the range until it has been checked. If several burners fail at once, that usually points to the module, not the burners.
Burner Will Not Light?
Book a diagnosis and we will test the igniter, module and gas path. Diagnostic and travel fees, if applicable, are confirmed before the appointment and before repair approval.
Related
Oven Not Heating
When the oven side fails too.
Range Repair
Burner and ignition work.
Cooktop Repair
Spark and valve diagnostics.