Symptoms
- Knob feels gritty or sticky when turning
- More force than usual is needed to turn it
- Knob doesn't click back to off cleanly
- Problem is limited to one or two knobs
Likely causes
- CommonFood or grease buildup around the valve stemSpills seep behind the knob and dry into a sticky residue.
- PossibleCorrosion on an older valve stemMetal parts can corrode slightly over years, adding friction.
- Less commonWorn or damaged valveThe internal gas valve itself can wear out and stick.
What to do
- Turn off the burner and, for a deeper clean, turn off the range's power or unplug it if it's electric ignition.
- Pull the knob straight off the valve stem; most kitchen knobs simply pull off without tools.
- Wipe the exposed valve stem and the knob's inside surface with a damp cloth, then a dry one.
- For heavier buildup, soak the knob itself in warm soapy water and scrub gently with an old toothbrush.
- Dry all parts fully before reassembling to avoid moisture affecting ignition.
- Push the knob back on and test turning it through its full range while off, checking that it moves smoothly and stops at off.
- If it's still stiff after cleaning, the valve itself may need service.
Tools and parts
- Damp cloth
- Old toothbrush
- Dish soap
Range burner control knobSearch: “gas range knob replacement”
When to call a pro
If cleaning doesn't loosen the knob, a technician can inspect or replace the underlying gas valve.
Safety
Generally low risk
Generally low risk for a careful person. Stop if anything looks different from what this guide describes.