Quick Answer: Why Your Bertazzoni Burner Will Not Light#
Most likely: a failed igniter. Cooktop burners use a spark igniter — a ceramic electrode that snaps a spark — while the oven uses a hot-surface igniter that must glow hot enough to open the gas valve. Clogged burner ports, a faulty spark module, or a gas valve that will not open are the secondary causes. The single most useful clue is whether the burner clicks when you turn the knob: clicking means the spark module is alive and the fault is downstream, while silence points at the spark module itself.
Safety First#
Before touching a gas appliance, find the gas shutoff valve — usually behind or below the stove. If you smell gas strongly and no burner is lit, do not attempt any repair: shut off the gas supply, ventilate the area, and call your gas utility. Never use matches or a lighter to test gas flow while diagnosing. You can manually light a cooktop burner with a long-reach lighter as a temporary measure, but never manually light the oven — its gas valve safety is designed to open only with the igniter's current draw, so lighting it by hand bypasses that protection.
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Likely Causes at a Glance#
| Cause | Likelihood | What to check |
|---|---|---|
| Failed igniter | Most likely | cooktop spark igniter or oven hot-surface igniter; no spark or a glow that never opens the valve |
| Clogged burner ports | Common | igniter sparks but gas will not catch; clear each port with a straight pin, not a toothpick |
| Faulty spark module | Common | no click on any burner means the shared spark module has failed |
| Gas valve not opening | Occasional | a weak oven igniter that glows but cannot draw enough current to trip the valve safety |
| Wiring or connections | Occasional | loose spade connectors or rodent-chewed insulation between igniter, module, and board |
Walking Through the Diagnosis#
Begin by listening across all burners. Turn each cooktop burner to the light position: if none of them click, the shared spark module or its wiring has failed; if only one is silent, the fault is that burner's electrode or its wiring. When a burner clicks but will not light, the most common reason is a wet or dirty burner — moisture from a boil-over or from cleaning shorts the spark — so remove the burner cap and head, clean each port with a straight pin (never a toothpick, which can snap off and block the port), dry everything thoroughly, and confirm the cap sits flat.
If cleaning does not solve it, inspect the electrode for cracks or carbon and check that its gap is about an eighth of an inch from the burner. For the oven, the hot-surface igniter must glow hot enough to reach the temperature that opens the gas valve; a good oven igniter reads roughly 40 to 400 ohms, and a reading over 400 ohms means it has weakened and can no longer draw the current the valve needs to open — the valve stays shut even though the igniter glows. Verify the gas supply is on (shutoff handle parallel to the pipe) and that other gas appliances in the home work normally, and inspect all wiring for burn marks or loose connectors.
Safety First — Know the Risks
Appliances involve high voltage (120-240V), pressurized water, gas lines, and chemical refrigerants. Over 400 DIY repair injuries are reported yearly. Our techs are licensed and insured — let them handle the risk.
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Repair or Replace? The Short Version#
An igniter, a spark module, or a cleaned burner is an inexpensive, targeted repair, and none of it approaches replacing the range. The reason to act promptly is safety — an oven that will not light on its igniter should never be hand-lit, and gas-valve work needs proper procedures. If replacing an oven igniter behind a built-in unit or touching the gas valve is not for you, our technicians carry Bertazzoni igniters and spark modules on every call — book a repair.
Frequently Asked Questions#
Why does my Bertazzoni gas stove click but not light?#
The clicking means the spark module works and is sending voltage to the electrode, so the problem is downstream. The most common reason is a wet or dirty burner shorting the spark — remove the cap, clean the ports, and dry it fully. If it still clicks without lighting, the electrode gap may be too wide or the electrode itself cracked.
Can I manually light my Bertazzoni gas stove?#
You can light a cooktop burner temporarily with a long-reach lighter — turn the knob to low and hold the flame near the ports. Never do this with the oven, though: its gas valve safety is meant to open only with the igniter's current draw, so hand-lighting it bypasses that protection. Get the igniter repaired promptly.
How long do gas stove igniters last?#
Oven hot-surface igniters typically last three to five years with daily use, while cooktop spark igniters are solid-state and last much longer, often seven to ten years or more. Humidity and frequent boil-overs shorten igniter life, so keeping the burners dry and clean helps them last.
The igniter glows but the oven still will not light — why?#
That is the classic weak-igniter, closed-valve case. The oven gas valve opens only when the igniter draws enough current, so an aged igniter that glows but reads over about 400 ohms cannot pull the valve open. The fix is a new igniter, not the valve, in most cases.
Appliance Repair Technician · 8 years experience
Experienced technician with 8 years specializing in dishwasher repairs and European appliance brands including Bosch and Thermador.

