A gas burner that clicks but will not light, or will not click at all, usually has a fouled igniter, a clogged port, or a weak spark module. The fix is straightforward once the failed link in the ignition chain is found.
Notes by Brand
The same symptom can point to different components depending on the manufacturer. Here is how it tends to present across the brands we service.
- Wolf: Wolf sealed burners will not light when the igniter is fouled or the cap is misaligned; continuous clicking after lighting points to moisture.
- Thermador: Thermador Star burners can clog at the port; we clean the port and test the spark module.
- Viking: Viking burners often fail to ignite from a weak spark module or a fouled igniter electrode.
- La Cornue: La Cornue burners are mechanical; a burner that will not light usually means the igniter or the gas valve, which we test directly.
- Dacor: Dacor burners fail to ignite from igniter wear or a clogged port, which we clean and test.
- Gaggenau: Gaggenau Vario gas cooktops will not light when the spark module or the burner cap fails to seat.
Symptom and Cause Guide
| Symptom | Likely Cause | What We Do |
|---|---|---|
| Clicks, no flame | Fouled igniter or clogged port | Clean port, test igniter |
| No click at all | Weak spark module | Test and replace the module |
| Lights then goes out | Safety valve or thermocouple | Test valve, replace as found |
| Continuous clicking | Moisture under the cap | Dry and reseat the cap |
If you smell gas, do not keep trying to light the burner. Shut off the supply, ventilate the room, and book service. Never bypass a safety valve to force a burner on.
When to Book Service
If the symptom persists after basic checks, or if it involves the sealed system, gas, or standing water, book a diagnosis. We test the actual fault in a set order before quoting, so you are not paying to replace parts on a guess.
Dealing with this problem in Dover or nearby? Book a diagnosis with a brand-focused tech.