Gas oven lights but goes out after a few seconds

Safety first: Turn the oven OFF and allow it to cool. Close the gas supply before working on the gas train.

• Hold knob longer: When lighting, press and hold the oven knob for 10–15 seconds to allow the thermocouple to heat. If the flame still goes out, continue troubleshooting.
• Check flame pattern: Ensure the flame is stable and directly heating the thermocouple tip. Clean the burner ports near the thermocouple.
• Inspect thermocouple: Verify that the thermocouple tip is correctly positioned in the flame. Gently adjust if needed.
• Check connection: Under the oven, locate where the thermocouple connects to the oven safety valve. Tighten the connection slightly.
• Replace parts: If the problem persists, replace the oven thermocouple. If a new thermocouple does not solve it, the oven safety valve is likely faulty and should be replaced by a licensed gas technician.