A gas oven that won’t heat is usually one cheap part. The igniter is the single most common failure on a gas range, and the good news is the part is inexpensive. The catch is that the symptoms overlap with other faults, so it pays to confirm before you spend money.
What the oven igniter actually does
In a gas oven, the igniter does two jobs at once. It glows hot to light the gas, and it draws enough electrical current to open the safety gas valve. As the igniter ages, it still glows, but it draws less current. Eventually it can’t pull enough amperage to trip the valve open. The result: it glows, the burner never lights, and the oven stays cold.
That dual role is why a “still glowing” igniter is often the failed part. People assume a glow means the igniter is fine. It isn’t.
How to tell your igniter is bad
Set the oven to bake and watch the igniter at the bottom of the oven cavity (you may need to pull the lower panel or broiler drawer).
- Bright orange glow, valve opens in 60 to 90 seconds, burner lights: igniter is healthy. Your problem is elsewhere.
- Dim orange or red glow, never lights: weak igniter. It can no longer draw enough current. Replace it.
- No glow at all: dead igniter, a wiring break, or a control board not sending power.
- Long delay, clicking, then a soft “whoomp” when it finally lights: aging igniter on borrowed time.
A clamp meter reading the igniter circuit tells the full story (a healthy round igniter draws around 3.2 to 3.6 amps, a flat one around 3.6 to 4.0). If you don’t have one, the glow test gets you most of the way.
What an oven igniter costs
The part is cheap. The labor and the diagnosis are where the cost sits.
- Igniter part: $25 to $90 for most mainstream gas ovens (GE, Whirlpool, Frigidaire, Samsung, LG). Built-in luxury units can run $120 or more.
- Diagnostic: $75, waived when you book the repair.
- Typical job installed: $200 to $350 for most gas ovens in the Tri-Valley.
We look up the OEM part cost for your exact model and email you a written estimate before we order anything. No surprise bill at the end.
When to call a pro
Two reasons people call us instead of doing it themselves. First, the part is fragile. The igniter is silicon carbide or a flat ceramic element, and the oils from your fingers plus a small crack will kill a new one before it ever heats. Second, you are working next to a live gas connection. If the glow test points clearly at the igniter and you’re comfortable with the gas off and the unit unplugged, some models are a 30-minute swap. If you’re not sure the igniter is the real fault, a wrong guess means you buy a part that fixes nothing.
We service gas and electric ovens, ranges, and cooktops across the Tri-Valley. If your oven glows but won’t light, or won’t glow at all, we’ll confirm the cause on the first visit. More on how we narrow these down in our oven and stove repair guide and our full cooking appliance repair service.
Call (925) 999-4095 or email [email protected] to book. $75 diagnostic, credited to the repair, written estimate before any work. You can also reach us through the contact page.
FAQ
How much does an oven igniter replacement cost? The part runs $25 to $90 on most gas ovens, up to $120 or more on built-in luxury brands. Installed with diagnostic and labor, most jobs land between $200 and $350.
How do I know my igniter is bad? A failing igniter glows dim and never gets hot enough to open the gas valve, so the burner won’t light. A no-glow usually means a dead igniter or a wiring break.
Can I do it myself? On some models, with gas off and power unplugged. The igniter is fragile and you’re next to a gas line, so confirm the diagnosis first or have it done.