How do you fix a gas oven that won't stay lit?

Author: Arjun Schimmel  |  Last update: Saturday, May 3, 2025

If the burner ports are clogged with debris, this can cause the flame to go out. Turn off the gas supply and carefully remove the burner assembly. Clean the ports using a soft brush or compressed air, ensuring they are free from any blockages. Reassemble the burner and test the oven to see if it stays lit.

Why does the flame in my gas oven keep going out?

Your gas pressure is too high, and the flame is blowing itself out. Turn the pressure down a fraction on the regulator until it doesn't do that any more. If that doesn't work, call in a (licensed) gas engineer. Have them fix it and the other gas devices - it will likely have been many years since it was done.

Why is my gas oven lighting but not staying on?

Generally, modern gas ovens no longer have any pilot lights with gas flames. If you have a classic oven with a pilot light and it does not stay burning after you light it (keeping the pilot button held on for a minute or so) then the flame sensor is faulty and will need to be replaced.

Why does my gas oven keep turning itself off?

Your gas oven could be turning off because its ventilation system is blocked. Additionally, your gas ignitor could be damaged or failed to light, you could have a broken thermostat, or you may be low on gas. Finally, your gas line may be blocked.

What do I do if my oven keeps shutting off?

Calibrate the Thermostat: Consult your oven's manual to learn how to calibrate the thermostat properly. Professional Repair: If calibration doesn't work, it's best to call a professional technician to diagnose and repair the thermostat. Sometimes, electrical problems within your home can cause the oven to shut off.

Gas Stove Top Hob Burner Not staying lit, Thermocouple How it works & Test if lights but goes out

How do you replace a thermocouple on a gas stove?

How to Replace a Thermocouple
  1. Choose the new thermocouple based on the size and mounting style of the old one. ...
  2. Detach the old thermocouple as described above.
  3. Remove the new thermocouple from the packaging and uncoil it to the appropriate shape.
  4. Attach the new thermocouple to the pilot assembly and the gas valve.

How do I know if my oven thermocouple is bad?

Disconnect it from the gas valve and connect a multimeter set to millivolts. Apply heat to the tip and check the reading. A properly functioning thermocouple will generate 15-35 millivolts when heated. If below 15 millivolts, the thermocouple must be replaced.

Why won't my gas stove stay lit?

There are many reasons why a gas stove would stop working, such as the gas or power going out, food debris clogging the igniter, or a broken spark module.

Can you clean a thermocouple without removing it?

Clean the thermocouple - using the emery cloth sandpaper, sand the ends of the thermocouple and then give it a finishing touch with the lint-free cloth. Hopefully, you can get to the ends of the thermocouple without having to detach it from the assembly, but you may have to do that.

How to fix an oven not staying on?

How to fix common oven problems
  1. Lift off the burner grate, burner cap, and burner base.
  2. Clean any food debris out of the burner with a toothpick or compressed air.
  3. While you're at it, clean the grate, cap, and case.
  4. Check the wires connecting the igniter to the control module. If there's a loose connection, tighten it.

Why does my oven light keep going out?

Loose connections

If a bulbs isn't properly fitted into its housing, the electrical current could jump or “arc” to reconnect with its source. Constant arcing can cause the light bulb to blow because of the high heat. We recommend having a licensed technician come in to replace a faulty light fitting.

Why does my gas oven pilot light keep going out?

When there is a buildup of dirt in the pilot light port, it can prevent the flame from properly engulfing the thermocouple. In turn, the safety mechanism is triggered, turning off the gas. This is a very common culprit resulting in why your pilot light keeps going out.

Why is my gas oven igniting but not staying on?

An oven that won't stay lit could be due to a faulty or weak igniter, gas supply problems, or clogged burner ports, which are common culprits for this issue. A weak igniter is often the primary cause of a gas oven not staying lit, necessitating replacement by a service technician to ensure proper heating.

How do I know if my gas oven heating element is bad?

If the element doesn't turn bright orange or only parts glow, it's likely burned out and needs replacement. Confirm this with a visual inspection when the oven is on. For a more definitive answer, perform a continuity test using a multimeter, though this may require professional assistance.

Why does my gas stove keep losing flame?

There are several reasons why your gas stove flame may be low. Clogged burner ports, a failing gas valve, low gas pressure, or an igniter failure are the most common problems.

Why does my gas stove fire keep going out?

Poor ventilation can affect the flame as the vents become dirty or blocked, preventing sufficient airflow. It can disrupt the balance of oxygen and pressure needed for stable combustion, activate safety mechanisms, and lead to incomplete combustion and overheating, all of which can cause a gas fire to go out.

How to clean a thermocouple on a gas stove?

Follow these key steps to complete a thorough cleaning process:
  1. Turn Off Power and Gas Supply. ...
  2. Remove from Burner Assembly. ...
  3. Blow away Debris. ...
  4. Scrub Corroded Areas. ...
  5. Rinse and Dry. ...
  6. Inspect Conditions. ...
  7. Reattach and Restore Gas/Power. ...
  8. Why does my pilot light keep going out?

How do you reset a gas oven?

Turn the circuit breaker to the OFF position. Wait one minute, then turn the breaker back to the ON position to reset electronic oven controls on models so equipped. We suggest doing this even if the light or the clock on the Range or Wall Oven is working.

Can I replace a thermocouple myself?

It's easy to replace, and a new one costs $5 to $10. Rather than trying to unfasten the thermocouple inside the water heater's burning chamber, it's easier to remove the whole burner and thermocouple assembly.

How do you unclog a thermocouple?

Clean the Thermocouple: Use a brush or compressed air to remove any debris or dust on the thermocouple. A soft-bristled brush works well for this. Handle with Care: Be gentle during cleaning to avoid damage.

What are the symptoms of a bad thermopile?

Symptoms Pilot won't light. Pilot lights but burner won't. System lights, but goes out after a while.

Why does my gas stove not stay lit?

If your burner lights for a short time but then goes out, you may have a blockage in the gas valve. The gas line is what provides fuel to the burner to keep it lit. A complete blockage often prevents the burner from lighting at all.

How to tell if a thermocouple is bad?

There's really just one telltale sign of letting you know when the thermocouple isn't working, and that's when the pilot light won't stay lit. If you experience this problem, it's important to have your thermocouple assessed as soon as possible.

Is there a thermocouple on a gas oven?

The thermocouple is a gas oven part that detects when your pilot flame goes out and responds by cutt... Why are thermocouples and a flame failure device important on your cooker?

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