Part · gas ranges and wall ovens
Mill Creek oven igniters that glow but won’t light
Oven slow to light, or not lighting at all while the cooktop burners work fine? A weak hot-surface igniter is the usual cause.
- $85 diagnostic, counted inside the repair price you approve
- One written price before any part is replaced
- Monday through Saturday, same-day when the morning allows
- Ovens coveredGas ranges, gas wall ovens, broil burners
- How it failsGlows but draws too little current
- Our testClamp ammeter on the igniter circuit
- Gas smellGet outside, then call the gas utility
Oven igniter
How a gas oven igniter opens the gas valve
In Mill Creek we measure its current draw before swapping anything, so the right part gets replaced.
Most gas ovens built in recent decades light the bake burner with a hot-surface igniter, a small bar of silicon carbide or silicon nitride that glows bright orange as current passes through it. The igniter is wired in series with the oven’s safety valve. As the bar heats, its resistance falls and the current in the circuit climbs. Inside the valve, a bimetal strip warms with that current and, once it reaches the valve’s rated level, bends to let gas through. The gas meets the glowing bar and lights. Because the valve opens only when the igniter is hot enough to light it, the design keeps unburned gas from collecting in the oven. Many ranges have a second igniter for the broil burner at the top of the cavity.
Igniters wear out gradually. Each heat cycle changes the material a little and its resistance creeps upward, so an aging igniter still glows but passes less current than the valve needs. The oven takes longer and longer to light, and one day it never does. Self-cleaning cycles speed that along with extreme heat, and a jolt from a dropped pan or a bumped rack can crack the brittle bar outright. Oven cleaner sprayed toward the burner and grease baked onto the igniter shorten its life as well. Less often the safety valve itself fails, a connector feeding the igniter overheats, or the control board stops sending power. A cracked flame spreader or clogged burner ports can also look like ignition trouble.
Signs
Signs the oven igniter is weakening
- The oven takes several minutes to light, a little longer each month, before the burner catches.
- Through the slots in the oven floor you can see an orange glow, but no flame follows.
- The cooktop burners light normally while the oven stays cold no matter the setting.
- A loud whoosh or soft boom as the burner lights, a cue to stop using the oven.
- Bake works but broil doesn’t, or broil works while bake stays cold.
- The oven heats at first, then drifts cold partway through a long roast or bake.
Where we find it
Where we replace oven igniters
| Range or oven type | What we see with the igniter there |
|---|---|
| Freestanding gas ranges | Bake igniter under the oven floor, and slow lighting is the usual call. |
| Built-in gas wall ovens | Tight cabinet access, with separate bake and broil igniters on many models. |
| Ranges with a broiler drawer | One burner under the oven bakes above and broils in the drawer below. |
| Higher-end slide-in gas ranges | Some skip the glow bar and use spark ignition with a flame sensor. |
How we test it
How the technician tests a gas oven igniter
- 1
Confirm gas and power
The technician lights a cooktop burner to confirm gas reaches the range and checks voltage at the outlet. If the house supply is the trouble rather than the oven, we say so and stop there, since gas piping outside the appliance is not ours to touch.
- 2
Watch the glow
With a bake cycle started, the technician watches the igniter through the oven floor and times it. A dim glow, a slow climb to orange, or a bright glow with no gas each point to a different fault, and the time to light adds one more clue.
- 3
Clamp the current
A clamp ammeter goes on the igniter circuit while it heats. If the current never reaches the rating stamped on the safety valve or listed in the tech sheet, the igniter is too weak to open the valve, even though it glows. That reading is the proof we show you.
- 4
Check the valve and wiring
If the igniter pulls full current and gas still does not flow, the meter checks the safety valve’s internal heater for continuity. An open valve, or current that never reaches the igniter at all, shifts the search to the valve, the wiring or the control board instead.
Booking
Book a oven or range visit
Tell us the machine and what it is doing, then where to come. We call back to set a two-hour window, Monday through Saturday.
- $85 diagnostic counted inside the repair price once you approve it
- Up to $15 off your first repair with us — tick the box
- $10 off the diagnostic of a second appliance on the same visit
Prefer to talk? (425) 905-3879 · Mon–Sat 8 a.m.–7 p.m. · Sunday closed
Puget Sound angle
Gas kitchens, dark months and outages in Mill Creek
Over half the homes in Mill Creek heat with piped natural gas, and many kitchens in its 1980s and 90s subdivisions, the tree-named neighborhoods of the original plat and the newer houses toward Mill Creek East have gas ranges or wall ovens to match. Many of those ranges are old enough that their igniters are tiring. The oven sees its heaviest use in the dark, wet months, which is when a slow igniter usually gets noticed. Damp air does little harm to an igniter, but grease and cleaner residue do. During the November 2024 windstorm outages, gas ovens with glow-bar ignition could not light at all, since the igniter needs electricity to open the valve.
FAQ
Oven igniter questions
Can I light my gas oven with a match during an outage?
No. An oven with a hot-surface igniter keeps its safety valve closed until the igniter is hot, so there is nothing to light, and trying to force gas through is dangerous. Many cooktop burners can be lit carefully with a match when the power is out, and your manual says whether yours can. Leave the oven off until power returns.
What should I do if I smell gas near the oven?
Turn the oven off if you can do it without lingering, avoid flipping light switches or plugging anything in, get everyone outside, and call the gas utility from a safe distance. Do not book a repair first. Once the utility has cleared the home, we can test the igniter, valve and burner.
My oven takes a long time to light. Can it wait?
For a while, but not indefinitely. A tired igniter can leave the oven cold in the middle of a bake or fail outright, and a loud whoosh at lighting means gas gathered before ignition, so stop using it if you hear that. Book when the lighting time stretches noticeably; common igniters ride in the van.
Do dual-fuel ranges have an oven igniter?
No. A dual-fuel range pairs a gas cooktop with an electric oven, so the oven heats with bake and broil elements instead, and the burners on top use spark igniters. If your dual-fuel oven will not heat, the elements, the temperature sensor or the control are the likely suspects, and we test those on the same visit.
Is there anything off my first repair?
When this is your first repair with us, tick the first-repair box on the booking form or say so on the phone. Up to $15 then comes off the repair price for the igniter job, while the diagnostic stays as it is. Your Mill Creek technician shows the reduction on the written price before you approve.
Book the $85 diagnostic visit
Approve the igniter repair and your $85 diagnostic is counted inside its written price; decline, and $85 covers the tests and nothing more.