Stop
A burner that won't fully shut off is a fire and gas hazard. If it won't turn off, shut off the main gas supply if you can do so safely and call a technician or your gas utility right away.
Symptoms
- Small flame remains visible when the knob is turned fully to off
- Knob feels like it reaches a hard stop at off
- Gas smell without any visible flame in rare cases
- Problem limited to one burner
Likely causes
- CommonWorn or stuck gas valveValves can wear internally so they don't fully seal even at the off position.
- PossibleDebris inside the valve keeping it slightly openRare, but small debris can lodge in the valve mechanism.
- PossibleKnob not fully seated on the valve stemA knob that isn't pushed on straight can misalign with the true off position.
What to do
- If you see any flame with the knob at off, treat this as urgent: try turning the knob further and watch closely to confirm it's fully off.
- If the flame doesn't go out, turn off the range's main gas supply valve if you know where it is and can do so safely.
- If you can't stop the flow, leave the area, do not use an open flame or switch nearby, and call your gas utility.
- If it was just a knob alignment issue, remove and reseat the knob straight onto the valve stem and retest.
- Do not attempt to open or repair the gas valve yourself.
- Have a technician replace the faulty valve before using that burner again.
Tools and parts
Range burner valveSearch: “gas range burner valve replacement”
When to call a pro
Call a licensed technician immediately to replace the faulty valve; do not use that burner until it's fixed.
Safety
Stop
A burner that won't fully shut off is a fire and gas hazard. If it won't turn off, shut off the main gas supply if you can do so safely and call a technician or your gas utility right away.