


Flame does not adjust when the knob is turned from Low to High — knob is stripped, worn, or unable to rotate the valve stem.
The knob rotates without resistance and fails to engage the gas valve shaft, preventing ignition or flame adjustment.
Visible cracks, chips, or a completely broken knob that is unsafe to operate and must be replaced immediately.
The knob does not sit firmly on the valve stem, causing imprecise flame control and potential gas flow issues.




💡 Pro Tip: Is Your Cooktop Knob the Problem?
Your part is likely the culprit if you notice any of the following:
⚠️ Burner flame does not change when you turn the knob from Low to High
⚠️ Knob spins freely without engaging the valve stem
⚠️ Visible cracks, chips, or the knob has broken off entirely
⚠️ Knob feels loose, wobbly, or cannot be pushed in to ignite the burner
Diagnosis tip: Pull the knob straight off and inspect the D-shaped hole inside. If the flat side of the D is worn round or the plastic is cracked, the knob can no longer grip the valve shaft — replace it immediately. Always shut off the gas supply at the shutoff valve before removing the old knob for safety.
📦 What's in the Box
✅ 1× WB03X29354 Gas Cooktop Control Knob Assembly – Stainless Steel Look (with reinforced metal D-hole sleeve)
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Disclaimer: Compatibility information, part numbers, and model fitment data on this page are sourced from manufacturer databases and third-party references. While we strive for accuracy, please verify your appliance model number before ordering. Heima is not responsible for errors or omissions in compatibility listings.
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