How to Replace WB03X24818 Gas Range Burner Control Knob on GE Range — Step-by-Step

Your GE gas range's control knob cracked right at the base where the D-shaped stem connects, and now you can't get a solid grip when turning the burner on. Maybe the indicator markings wore completely off and you're guessing which setting is "simmer" versus "high." Or the knob fell off entirely because the internal sleeve that grips the valve stem finally gave out after years of daily use. The WB03X24818 replacement knob restores precise burner control without calling a tech.

What You Need Before Starting

This is one of the simplest appliance repairs you'll ever do — no tools required and it takes about 30 seconds per knob. You'll need:

• Replacement WB03X24818 control knob
• Clean cloth (optional, for cleaning the valve stem)
• Your hands

Repair Time: 1-2 minutes per knob
Difficulty: Beginner — No experience needed

Safety First

Make sure all burners are in the OFF position before removing any knobs. If you smell gas at any point during this process, don't attempt the repair — turn off the gas supply valve behind or beneath the range and call your gas company immediately. This is a cosmetic/functional replacement that doesn't involve gas line work, but it's always smart to be cautious around gas appliances.

Step 1: Remove the Old Control Knob

Grab the damaged knob firmly and pull straight out away from the control panel. Don't twist or wiggle — just pull. The knob is held on by friction against the D-shaped metal valve stem, not by any clips or screws. If it's stuck from years of grease buildup, grip it with a dry towel for better traction and pull harder. It will come off.

Step 2: Clean the Valve Stem

Look at the exposed D-shaped metal stem sticking out from the control panel. If there's grease, food residue, or sticky buildup on it, wipe it clean with a damp cloth. This ensures your new knob will seat properly and grip the stem tightly. The stem should be smooth and dry before you install the replacement knob.

Step 3: Align and Install the New Knob

Look inside the back of your new WB03X24818 knob — you'll see a D-shaped opening that matches the valve stem. Line up the flat side of the D-opening with the flat side of the stem. Push the knob straight onto the stem until it's flush against the control panel. You'll feel it seat firmly when it's fully installed. The knob should feel snug and not wobble.

Step 4: Test the Knob Operation

Turn the knob through its full range from OFF to LITE to the highest heat setting and back. It should rotate smoothly without binding, and you should feel the valve clicking into each detent position. The indicator markings on the knob should align properly with the settings printed on your range's control panel. If the knob feels loose or spins too freely, pull it off and reinstall — you may not have pushed it on completely.

Testing After Installation

Turn one burner to the LITE position and verify that the igniter clicks and the burner lights normally. Adjust the flame from low to high and confirm the knob provides smooth control through the entire range. If you're replacing multiple knobs, test each burner individually. The new knob shouldn't affect burner operation at all — it's purely a mechanical interface between your hand and the gas valve.

Frequently Asked Questions

Will this knob fit my specific GE gas range model?

The WB03X24818 fits dozens of GE gas range models including the JGB645, JGB660, and JGB700 series. Check the compatible models list on the product page — models like JGB645EEK1ES, JGB660SEJ2SS, and JGB700EEJ4ES are confirmed fits. If your model number isn't listed but your old knob looks identical to the product photo, it'll work. GE used this same knob design across multiple model years.

Can I replace just one knob or do I need to replace all of them?

You can absolutely replace just the damaged knob. However, keep in mind that if one knob failed due to age or wear, the others are probably close behind. Also, the new knob will look noticeably cleaner and less worn than your old ones. Some people replace all four or five knobs at once for a uniform appearance, but it's not necessary for function.

Why won't my new knob stay on the valve stem?

If the knob keeps falling off, the internal D-shaped sleeve inside the knob might not be gripping the stem properly. Make sure you're pushing it on completely — it should require firm pressure to fully seat. If the valve stem itself is worn or damaged (rounded edges on the D-shape), the knob won't grip properly and you'll need to address the valve stem issue, which requires a more involved repair.