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Gas Oven Burner Replacement: Why Your Oven Won't Light

Quick Answer

A gas oven that won't light is usually caused by a weak igniter that glows but lacks the electrical power to open the gas valve. First, check if the igniter glows for more than a minute without a flame appearing, as this confirms the igniter needs replacing rather than the burner itself.

Nine times out of ten when I show up for a 'gas oven won't light' call, it's not the burner, it's the igniter slowly dying. And here's what people don't realize: if you ignore it, you're letting raw gas dump into your oven every time it tries to light. That's not just annoying, it's actually dangerous. Fix it before it gets to that point.

GenericOvenSeverity: highDifficulty: intermediate95% DIY Success
Time to Fix
30–75 min
Difficulty
intermediate
Parts Cost
$28 – $85
Tools Needed
1/4 inch nut driver, Phillips #2 screwdriver

Gas Oven Burner Replacement: Why Your Oven Won't Light

Look, this is one of the most fixable things on a gas oven. Parts are usually under fifty bucks, and honestly if you've got a screwdriver and a free afternoon you can handle it yourself. A service call's going to run you $150 to $250 just to walk in the door. I replaced three igniters just last week. It's that common and it's almost always the igniter, not the burner itself.

Most Likely Causes

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

Weak or cracked bake igniter65%
Clogged burner ports15%
Rusted or warped burner tube10%
Faulty gas safety valve7%
Wiring or control board issues3%

Symptoms You May Notice

  • There's a faint orange glow at the bottom of the oven, but it just sits there for 60, 90, sometimes 120 seconds with no flame ever appearing.
  • You get a strong hit of gas smell the first couple minutes after you turn the oven on, way more than that quick whiff you'd normally expect.
  • The oven takes 20 or 25 minutes to reach 350 when it used to do it in 12, or it just never gets there at all.
  • When it finally does light, there's a loud whomp or whoosh sound, which is unburned gas igniting all at once instead of gradually.
  • The flame is there but it's yellow and wavy instead of blue and steady, or there are dark gaps where sections of the burner just aren't lit.

Can you reset a Generic oven to clear the NOT-HEATING code?

Most gas ovens do not have a digital reset for burner issues. Once the physical part is replaced and the gas is turned back on, simply cycling the oven knob to 'Off' and then back to your desired temperature will reset the ignition sequence.

Tools Required for Diagnosis

1/4 inch nut driverPhillips #2 screwdriverMultimeter with clamp-style amp probeSmall wire brushFlashlightSafety pin or stiff wire (for clearing burner ports)Dish soap and water in a spray bottle (for leak testing)

Diagnostic Checklist

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

Did the fix not work?

If the problem comes back after following these steps, a component has permanently failed and needs replacement. Check the specific error code your oven is showing:

ComponentComponent Under Test
Expected Range3.23.6 amps
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
Oven Bake Burner Tube316505500 · $45–$85
Universal Flat Oven Igniter74007498 · $28–$55

Frequently Asked Questions

Why does my oven smell like gas when I turn it on?
A tiny whiff right at startup is completely normal. That's just the gas reaching the igniter before the flame catches. What's not normal is a strong smell that hangs around for more than 20 or 30 seconds. That tells you the igniter is taking way too long to open the valve, so raw gas is building up in the oven cavity before it finally lights. At that point you've got a weak igniter situation, and honestly you want to stop using the oven until you fix it. Don't keep running it like that, it's not safe.
Can I clean an oven burner instead of replacing it?
Yeah, absolutely, if the problem is just a food spill or soot buildup in the ports. Pull the burner out, use a small wire brush or safety pin to clear each port, vacuum out any loose debris, and reinstall it. A lot of times that's genuinely all it needs. But here's the thing: if the metal itself is thinned out, rusted through, or you can see actual holes in the tube, no amount of cleaning is going to fix that. Rust compromises the structural integrity and you can't restore it. Once you see holes, you're replacing it.
How do I know if I need a new burner or just a new igniter?
Here's the quick way to tell. If the burner actually lights but the flame is yellow and lazy instead of blue and crisp, or you've got gaps where sections aren't lit, or the flame keeps going out, that's a burner problem. But if you turn the oven on and the igniter glows and glows and nothing ever lights, that's almost always the igniter. The burner's fine, it just isn't getting the signal it needs. Run the amp clamp test from step 4 and you'll know for certain before you spend money on the wrong part.
Is it safe to replace a gas burner myself?
Yeah, totally doable as long as you follow the two rules: gas off at the shutoff valve behind the oven, oven unplugged. The burner itself isn't under high pressure, it's just a metal tube sitting over the orifice. The main thing to get right during reinstallation is that the burner seats correctly over that gas orifice. If it's even a little bit off, gas won't feed into it properly. When you're done, mix up some dish soap and water and run it over every connection you touched while the gas is back on. Watch for bubbles. Any bubble at all means you've got a leak.
How much does this repair cost if I do it myself?
Igniters usually run $15 to $40 depending on your oven brand and model. A replacement burner tube is more like $40 to $80. The gas safety valve is the priciest of the three, usually $60 to $120 for the part alone. So even worst case you're looking at under $150 in parts, which is still way less than the $200 to $300 a tech's going to charge just to diagnose and fix it. Most of the time you only need the igniter since that's the culprit like 70% of the time. Grab your model number off the sticker inside the door frame and search that plus 'bake igniter.'

Related Generic Oven Error Codes

Same Fix on Other Brands

Models Known to Experience NOT-HEATING Errors

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

FGB24L2ASA, JGBP28SEMSS, NX58H5600SS, WFG505M0BS, LRG3081ST, FGGF3036TF, JGB735SPSS, NX58R4311SS, WFG320M0BS, LRGL5823S

MS

Written by

Mike Sullivan

Lead Appliance Repair Technician · 20 years experience

Last verified for technical accuracy on May 20, 2024