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Oven Igniter Replacement: Test, Diagnose and Fix

Quick Answer

An oven igniter glows hot to light the gas and provides the electrical resistance needed to open the gas valve. If your oven glows but never actually fires up, the igniter has likely weakened and can no longer pull enough amperage to trigger the fuel flow.

A weak igniter is sneaky because it still glows orange, so most people assume it's the gas valve and drop $150-200 on a part they don't need. I'd say 8 out of 10 times when someone tells me their oven glows but won't light, it's just a tired igniter. Ignore it long enough and you'll start getting that delayed 'whoof' of built-up gas lighting at once, which is genuinely not something you want.

GenericOvenSeverity: highDifficulty: intermediate95% DIY Success
Time to Fix
30–60 min
Difficulty
intermediate
Parts Cost
$25 – $80
Tools Needed
Phillips #2 screwdriver, 1/4 inch nut driver

What Does the IGNITER Code Mean?

Most igniters are silicon carbide and they last 4-7 years on average. But honestly, if your oven's taking longer than 90 seconds to kick on, it's already on its way out. Don't wait for it to die completely. I've gotten way too many calls from panicked people on Thanksgiving morning with a raw bird sitting there. Replace it before that happens to you.

Most Likely Causes

Based on aggregated repair data, here is the probability breakdown for this error code:

Normal element degradation from age75%
Electrical surge or short circuit10%
Physical breakage or impact8%
Contamination from oils or spills7%

Symptoms You May Notice

  • Oven glows orange but the gas burner never lights
  • Oven takes more than two minutes to ignite
  • Gas smell is present but no flame appears
  • Bake or Broil functions do not produce heat
  • Igniter shows visible white spots or a physical break

Can you reset a Generic oven to clear the IGNITER code?

There's no error code to clear on most gas ranges. Plug the oven back in and restore gas at the shutoff. Set it to bake at 350F. Within 30 to 60 seconds you should see the igniter glow bright white, not dull orange. The burner should light within 90 seconds. Run a full 15-minute cycle to confirm it holds. If it glows but still won't light, re-check your wire connections at the harness.

Tools Required for Diagnosis

Phillips #2 screwdriver1/4 inch nut driverMultimeter (set to Ohms)FlashlightClamp-on ammeter (optional but recommended)Clean latex glovesPhone or camera for reference photos

Diagnostic Checklist

Follow these steps in order. We start with the easiest external fixes before opening up the machine.

ComponentComponent Under Test
Expected Range40–400 ohms
ConditionIf Open (OL) or infinite, replace component.

Replacement Parts

If your diagnostic testing proves the component has failed, you will need a replacement. We recommend OEM parts over aftermarket for water-handling components.

Part Name
Flat Style Oven Igniter12400035 / 74007498 · $25–$65
Round Style Oven IgniterWB2X9154 · $30–$80

Frequently Asked Questions

Can I touch the new igniter with my hands?
Don't do it. The oils from your skin create a hot spot on the silicon carbide when it heats up, and that stress cracks the material. I've had customers replace an igniter, grab it wrong putting it in, and burn it out on the very first use. Always handle it by the ceramic base, or wear clean latex gloves. It takes about 10 seconds to be careful and it can save you from buying a second part.
Why does my igniter glow orange but the gas doesn't turn on?
That's a weak igniter, and it's the most common gas oven problem I see. As these parts age, their internal resistance increases. They still get hot enough to glow, but they can't let enough current flow to open the bimetal strip in the gas safety valve. The valve needs a minimum amperage to open, usually around 3.2 to 3.6 amps for most flat igniters. If your igniter's only pulling 2.8, it'll glow all day and you'll never get a flame.
Is a flat igniter interchangeable with a round one?
No, and don't try it. Different styles have different amperage draws and completely different mounting setups. If you swap styles you'll either burn out the new part immediately or the gas valve won't open because the amperage spec is wrong. Always match the style that came out of your oven. When in doubt, look up your model number on the parts site and check the photo before you order.
Should I buy an OEM igniter or a cheaper universal one?
Honestly, good universal igniters work fine if they match your amperage spec. The real difference is the plug. OEM parts come with the exact connector already attached, so it's a straight swap with no wiring. Universal kits require you to cut the old plug, strip the wires, and use ceramic wire nuts. Not hard, but if that makes you uncomfortable, just buy the OEM part. The price difference is usually $10-20 and the OEM install is way faster.
How long does an igniter replacement actually take?
For most freestanding gas ranges, you're looking at 30 to 45 minutes start to finish if things go smoothly. The first time might take an hour because you're figuring out where everything is. The actual work, screws out and screws in, is maybe 10 minutes. The rest is moving the oven, pulling panels, being careful not to break the new part, and testing. I've done them in 20 minutes flat on ovens I've worked on before.

Models Known to Experience IGNITER Errors

This repair applies to most Generic ovens with this error code. Common model numbers include:

Whirlpool WFG505M0BS, GE JGBS66REKSS, Frigidaire FFGF3054TS, Samsung NX58H5600SS, LG LRG3061ST, Maytag MGR8800FZ, KitchenAid KSGB900ESS

MS

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on March 17, 2026