The basic steps to relight your oven's pilot light
To light the pilot in a gas oven, you need to locate the pilot assembly (usually a small tube near the oven burner), hold down the ignition knob or button while holding a lit match or lighter to the pilot opening, and keep the knob pressed for 30 to 60 seconds after the flame catches. The pilot should burn with a steady blue flame about half an inch tall. If it goes out again within a few minutes, the thermocouple (a safety device that senses the flame) may be dirty or failing, and you will need to clean or replace it.
The exact location and method vary slightly between oven models. Some ovens have a red ignition button you press repeatedly instead of holding it down. Others have a piezo igniter built into the knob itself, which creates a spark when you turn it. Always check your oven's manual first—it will show you the exact pilot location and the correct sequence for your model.
Key Takeaways
- The pilot light sits near the main burner inside the oven, usually accessible from the front or by removing a panel at the bottom.
- You must hold the ignition knob down while lighting the pilot with a match or lighter, then keep it pressed for 30 to 60 seconds so the thermocouple heats up and holds the gas valve open.
- A healthy pilot flame is steady, blue, and about half an inch tall; a yellow or flickering flame means the pilot needs cleaning.
- If the pilot lights but goes out when you release the knob, the thermocouple is likely faulty and will need professional replacement.
Finding the pilot light assembly in your oven
The pilot light is usually located at the base of the oven, near the main burner. In many ovens, you can see it by looking through the oven window or by opening the oven door and peering down into the bottom. Some models require you to remove a panel or cover at the bottom front of the oven to access it. Check your manual for the exact location—it will have a diagram showing where the pilot sits and how to reach it safely.
If your oven has a removable bottom panel, slide it out gently. Do not force it. The pilot assembly is usually a small brass or metal tube with a tiny opening at the end. You may also see a larger tube nearby—that is the thermocouple, a thin metal rod that runs alongside the pilot. Do not touch the thermocouple; just note where it is so you do not accidentally bump it while lighting the pilot.
How to hold the ignition knob and light the pilot
Locate the oven control knob or button labeled "Pilot" or "Ignition." On most ovens, you will push the knob in and turn it to the "Pilot" setting, then continue holding it down. This opens the gas valve so gas flows to the pilot. While holding the knob down, use a long lighter or a lit match to bring the flame to the pilot opening. You may need to angle the lighter or match to reach the pilot from the front of the oven.
Once you see the pilot flame catch, keep holding the knob down for another 30 to 60 seconds. This allows the thermocouple to heat up. The thermocouple is a safety device that senses the pilot flame; when it gets hot enough, it signals the gas valve to stay open. If you release the knob too soon, the gas valve will close and the pilot will go out. After 30 to 60 seconds, slowly release the knob. The pilot should stay lit.
If your oven has a red ignition button instead of a knob, press and hold it while lighting the pilot the same way. Some newer ovens have a piezo igniter built into the knob—you turn the knob and it creates a spark automatically. In that case, straightforward turn the knob to "Pilot" and hold it while the spark ignites the gas.
What a healthy pilot flame looks like
A working pilot light burns with a steady, bright blue flame about half an inch tall. The flame should not flicker or dance. If the pilot is burning yellow or orange, or if it is very small and weak, the pilot opening is clogged with dust or debris and needs cleaning. A yellow flame also means incomplete combustion, which can produce carbon monoxide.
Look at the flame for a few seconds after you release the knob. It should remain steady and blue. If it flickers or goes out within a minute or two, do not assume the pilot is working—something is wrong, and you should not use the oven until you have identified the problem.
Why the pilot light goes out when you release the knob
If the pilot lights while you hold the knob down but goes out the moment you release it, the thermocouple is not working correctly. The thermocouple is a heat-sensing device that must reach a certain temperature before it signals the gas valve to stay open. If it is faulty, dirty, or misaligned, it will not send that signal, and the valve will close.
A dirty thermocouple can sometimes be cleaned. Turn off the gas at the control knob, wait a few minutes, then locate the thermocouple (a thin metal rod near the pilot). Gently rub the tip with fine steel wool or a soft cloth to remove any buildup. Do not bend or damage it. Then try lighting the pilot again. If it still goes out, the thermocouple has likely failed and will need to be replaced by a professional.
Cleaning a clogged pilot opening
If the pilot flame is yellow, very small, or will not light at all, the pilot opening is probably blocked by dust, spider webs, or debris. Turn off the gas at the control knob and wait a few minutes. Then locate the pilot opening—it is a tiny hole at the end of the pilot tube, usually no bigger than a pin head.
Use a thin, stiff wire (a straightened paper clip works) or a needle to gently poke into the opening and dislodge any blockage. Do not force it or enlarge the hole. Blow gently into the opening or use a small brush to clear away loose debris. Then turn the gas back on and try lighting the pilot again. If it now burns blue and steady, you have solved the problem.
When to call a professional
Call a licensed gas technician if the pilot will not light after you have tried multiple times, if the pilot lights but goes out when you release the knob and cleaning the thermocouple does not help, if you smell gas but cannot see a flame, or if the pilot flame is yellow and cleaning the opening does not fix it. Do not attempt to replace the thermocouple, igniter, or gas valve yourself—these are safety-critical parts that require professional tools and knowledge.
If you are uncomfortable working inside the oven or handling the ignition controls, or if you have any doubt about whether you are doing it safely, stop and call a technician. A service call is much cheaper than an injury or a gas leak.
Frequently Asked Questions
How long should I hold the knob down before releasing it?
Hold it for 30 to 60 seconds after the pilot flame catches. This gives the thermocouple time to heat up and signal the gas valve to stay open. If you release too soon, the valve will close and the pilot will go out. Your oven manual may specify an exact time—check it if you have it.
What if I smell gas but do not see a flame?
Stop when ready and turn off the gas at the control knob. Open windows to ventilate the area. Do not use the oven. Call a gas technician or your utility company's emergency line. A gas leak is a serious safety hazard and requires professional diagnosis.
Can I use any lighter to light the pilot?
A long-reach lighter or a long match works best because the pilot is often deep inside the oven and hard to reach with a regular lighter. A barbecue lighter or a fireplace lighter with an extended nozzle is ideal. Regular lighters may not reach far enough, and you could burn your hand.
Why does the pilot light keep going out after I release the knob?
The thermocouple is not heating up enough to hold the gas valve open. Try cleaning the thermocouple tip with fine steel wool. If that does not work, the thermocouple has failed and needs professional replacement. Do not use the oven until it is fixed.
Is it safe to light the pilot with the oven door closed?
You can light it with the door closed if you can reach the pilot opening through the front of the oven. However, leaving the door open gives you better visibility and easier access. Either way, make sure the area is well-ventilated and keep your face and hands clear of the oven opening.