Whirlpool Gas Oven Won't Ignite — 5 Causes & How to Fix

You turn the oven knob, hear that familiar click-click-click of the igniter trying to spark, but nothing happens. The gas smell gets stronger, and you're stuck deciding between ordering takeout or troubleshooting your Whirlpool range. If you've got a WFG515S0ES1, WFG525S0JS0, or any of the dozens of compatible models, that failing bake igniter is probably your culprit.

The WP9758079 spark igniter is one of the most common failure points in Whirlpool, Maytag, Amana, and Kenmore gas ranges. It's responsible for creating the spark that lights your oven's gas — when it fails, you're left with raw gas and no heat.

Quick Symptom Check

Before you start pulling parts, confirm what you're dealing with:

• Clicking sound but no ignition: Igniter is sparking but gas isn't lighting
• No clicking at all: Complete igniter failure or electrical issue
• Strong gas smell: Gas is flowing but not igniting (turn off immediately)
• Delayed ignition with small explosion: Weak igniter causing gas buildup
• Burner lights but oven doesn't: Bake igniter specific failure

Cause #1: Failed Spark Igniter (70% of Cases)

The WP9758079 spark igniter wears out over time. It's a consumable part — constant heating and cooling cycles cause the ceramic to crack and the electrode to corrode.

How to diagnose:

1. Turn off gas supply at the wall valve
2. Remove oven racks and inspect the igniter in the back corner of the oven floor
3. Look for visible cracks in the ceramic body
4. Check for black carbon buildup on the electrode tip
5. If it glows orange but doesn't click, it's definitely bad

Models like the WFG550S0HZ0 and WFG530S0ES1 typically see igniter failure around the 5-7 year mark. The fix is straightforward: replace the igniter with part WP9758079 (also sold as AP6013984 or PS11747217).

Difficulty: Moderate | Time: 45-60 minutes | Cost: $41.99

Cause #2: Blocked or Dirty Gas Ports (15% of Cases)

Even with a working igniter, blocked gas ports prevent proper flow. Food debris, grease, and carbon buildup restrict the gas that needs to ignite.

How to diagnose:

• Remove the oven floor panel (usually held by two screws)
• Inspect the burner tube for debris
• Check the small gas ports along the burner — they should be clear
• Look for mouse nests or insulation blocking the burner area (more common than you'd think)

Clean ports with a wire brush or compressed air. Don't use toothpicks or wooden tools that might break off inside the ports.

Cause #3: Weak or Inconsistent Gas Pressure (8% of Cases)

If your igniter clicks but the flame is weak or yellow instead of blue, you've got a gas pressure problem. This isn't the igniter's fault.

Check these:

• Main gas valve partially closed
• Pressure regulator on the range failing
• Supply line kinked or restricted
• LP conversion done incorrectly (if you switched from natural gas)

Gas pressure issues require a professional with proper testing equipment. Don't mess with gas lines if you're not qualified.

Cause #4: Faulty Oven Safety Valve (5% of Cases)

The safety valve controls gas flow to the burner. If it's stuck closed, no amount of sparking will help — there's no gas reaching the igniter.

Testing the safety valve:

1. Turn on the oven and listen closely
2. You should hear a faint hissing as gas flows
3. If silent, the valve might be stuck
4. Test with a multimeter: should read 1000-1500 ohms at room temperature

Safety valves rarely fail on their own. Usually, it's the igniter that fails first, which then makes you think it's the valve. Replace the igniter before buying a new valve.

Cause #5: Wiring or Control Board Issues (2% of Cases)

On models like the WFG374LVB2, WFG371LVQ0, and WFG361LVS1, the electronic control can fail to send power to the igniter circuit.

Quick electrical test:

• Use a multimeter to check for 120V at the igniter connector when oven is on
• No voltage = wiring or control board problem
• Inspect wire connections for burns or corrosion
• Check if other oven functions work (bake vs broil)

If only the bake igniter circuit is dead but broil works, you likely need a control board. That's a $200-300 repair, so verify everything else first.

When to Call a Pro

DIY the igniter replacement if you're comfortable working around gas. But call a technician for:

• Gas line work or pressure testing
• Control board diagnosis and replacement
• Any situation where you smell gas and can't identify the source
• If you've replaced the igniter and it still doesn't work

Most appliance repair shops charge $150-250 for an igniter replacement including parts. You'll save about $100-150 doing it yourself with the WP9758079.

Frequently Asked Questions

How long does a gas oven igniter last?

Most spark igniters last 5-8 years with normal use. If you use your oven daily, expect the lower end. The WP9758079 is a direct replacement that typically matches OEM lifespan.

Can I clean my igniter instead of replacing it?

You can try gently cleaning carbon buildup with a soft brush, but don't use water or cleaners. If the ceramic is cracked or the electrode is corroded, cleaning won't help — you need a new igniter. At $41.99, replacement is usually the smarter move than gambling on a cleaned part.

Will this igniter work on my Kenmore gas range?

Yes, the WP9758079 is compatible with Whirlpool-manufactured Kenmore models. Check your model number against the compatibility list, but most Kenmore 790-series and 791-series gas ranges from 2005-2020 use this exact igniter. Amana and Maytag models in the compatible list also work since they're all part of the Whirlpool family.