- Cooker Flame Keeps Going Out in London
Cooker Flame Keeps Going Out in London
If your gas cooker flame lights but goes out after a few seconds, stays on only while you hold the knob, goes out after releasing the knob, or cuts out while cooking, this page is created for the cooker flame keeps going out problem in London. The fault may be linked to the thermocouple, flame safety system, dirty burner, weak flame, misplaced burner parts or unstable gas flow.
- Flame Going Out Check
When Does the Cooker Flame Go Out?
The timing of the flame going out can be an important clue, especially if it happens immediately after releasing the control knob.

Goes out after releasing the knob
If the flame only stays on while the knob is being held, the thermocouple or flame safety system may need checking.

Goes out after a few seconds
This can be linked to a weak flame, flame safety sensor, gas flow issue or burner parts not seated correctly.

Weak flame goes out
A short, yellow or unstable flame may not stay steady and can go out after lighting.

Only one burner goes out
If only one burner has this issue, the fault is usually local to that burner, knob or thermocouple.
Simple Problem Explanation
Why Does the Cooker Flame Keep Going Out?
When a gas cooker flame goes out after lighting, the problem is often linked to the flame safety system, thermocouple, flame strength or burner condition. If the safety system does not detect the flame properly, it may cut off the gas and the flame will go out.
Sometimes the cause is simpler, such as moisture after cleaning, dirt around the burner, a burner cap that is not seated correctly or a weak flame. If only one burner goes out, that specific burner area should be checked more closely.
Useful Diagnosis Tip
If the flame only stays on while you hold the knob, this is an important sign that the thermocouple or flame safety system may need checking.
Common Reasons a Cooker Flame Keeps Going Out

Thermocouple or flame safety system
If the flame safety system does not detect the flame properly, it may cut off the gas flow.

Weak flame
A short or low flame may not stay stable and can go out after a few seconds.

Dirty or blocked burner
Grease, food residue or dirt around the burner can make the flame unstable and cause it to go out.

Burner cap not seated correctly
If the burner parts are not sitting correctly, the flame may become weak or unstable.

Restricted gas flow
If several burners are weak at the same time, gas flow or main cooker settings may need checking.
What to Check Before Booking a Repair
After releasing the knob?
Check whether the flame goes out after releasing the knob or before that.
One burner or several?
Check whether the problem affects only one burner or several burners.
After cleaning?
If the cooker was recently cleaned, allow the burner area to dry fully.
Gas smell or unusual flame
If there is a gas smell or repeated flame failure, stop using the cooker.
Important Safety Note
If your cooker flame keeps going out, especially with a gas smell, yellow flame, unusual sound, or if it only stays on while holding the knob, avoid repeated attempts to light it. Do not open or adjust gas supply parts, gas valves or internal connections yourself.
If there is a gas smell, do not try to light the cooker.
If the flame keeps going out, stop using it.
Do not open gas supply parts yourself.
Frequently Asked Questions About a Cooker Flame Going Out
This can be linked to the thermocouple, flame safety system, control knob or weak flame.
The flame may not be stable enough, or the cooker safety system may not be detecting the flame correctly.
Stop using the cooker, do not keep trying to relight the flame, and do not use the appliance again until it has been checked safely.
Stop using the cooker, do not keep turning the flame on and off, and do not use the appliance again until it has been checked safely.
Does Your Gas Cooker Flame Keep Going Out in London?
If your gas cooker flame goes out after lighting, only stays on while holding the knob, or cuts out while cooking, you can book a gas cooker repair request online.