Starting a gas fireplace without a working pilot light
If your pilot light has gone out and won't relight, you have two main options: relight it yourself using the manual ignition process, or use the fireplace's electronic ignition system if it has one. Most gas fireplaces built after the 1990s have an electronic ignition button or switch that bypasses the pilot light entirely—you press it, and the main burner ignites directly. Older fireplaces require you to manually light the pilot with a long lighter or match, then the main burner follows. The method depends on your fireplace model and what caused the pilot to fail.
Before you attempt any ignition, turn off the gas at the control knob for at least five minutes. This clears any unburned gas from the firebox. Smell the area around the fireplace—if you detect a strong gas odor, do not attempt to light it. Open windows, leave the house, and call your gas company's emergency line. A persistent gas smell means a leak, not just a dead pilot.
Key Takeaways
- Turn off the gas control knob for five minutes before attempting any ignition to clear unburned gas from the firebox.
- If your fireplace has an electronic ignition button, press and hold it while listening for the click of the spark igniter; the main burner should light within 10 to 15 seconds.
- For manual pilot relighting, use a long lighter to ignite the pilot flame at the small burner opening, then turn the control knob to the "On" position to start the main burner.
- If the pilot light goes out repeatedly or the electronic ignition fails to work, the problem is usually a thermocouple, thermopile, or igniter that needs professional inspection.
How to use electronic ignition if your fireplace has it
Most modern gas fireplaces have an electronic ignition system controlled by a button, switch, or dial on the front of the unit or on a remote control. To start the fireplace this way, first make sure the gas control knob is in the "Off" position. Wait five minutes, then turn the knob to "Pilot" or "On"—check your manual for the exact label, as it varies by manufacturer.
Press and hold the ignition button. You should hear a rapid clicking sound, which is the spark igniter firing. Within 10 to 15 seconds, the main burner flame should appear. If it does, release the button and turn the control knob to "On" to keep the burner running. If nothing happens after 30 seconds of clicking, release the button, wait two minutes, and try again. Repeated failure usually means the igniter is faulty or the battery in a wireless remote is dead.
How to manually relight the pilot flame
If your fireplace does not have electronic ignition, you will need to light the pilot by hand. Turn the gas control knob to "Off" and wait five minutes. Then turn it to "Pilot." You should see a small opening or tube where the pilot flame normally burns—this is usually located near the bottom of the firebox or inside the burner assembly.
Use a long lighter (the kind designed for grills or candles) or a long wooden match to reach the pilot opening. Hold the flame steady at the opening for 10 to 15 seconds. The pilot should ignite with a small blue flame about the size of a pencil tip. Once it is lit, keep holding the control knob in the "Pilot" position for another 30 seconds to allow the thermocouple to warm up. Then turn the knob to "On" to start the main burner.
If the pilot lights but goes out as soon as you release the knob, the thermocouple is likely faulty. The thermocouple is a heat-sensing device that tells the gas valve to stay open when the pilot is burning. If it fails, the valve closes automatically. This is not something you can fix yourself—you will need a technician to replace it.
Why the pilot light keeps going out
A pilot light that relights easily but then dies within minutes or hours usually points to one of three problems: a faulty thermocouple, a draft blowing out the flame, or a clogged pilot opening. The thermocouple is the most common culprit. It sits in the pilot flame and generates a small electrical signal that keeps the gas valve open. When it weakens or fails, the valve closes and the pilot dies.
Drafts from nearby windows, doors, or vents can also extinguish the pilot. If you notice the pilot going out only on windy days or after you open a window, draft is the likely cause. Try closing nearby vents or windows to see if the pilot stays lit. If the pilot opening itself is clogged with dust or debris, the flame may be too weak to heat the thermocouple properly. A technician can clean the opening or replace the pilot assembly.
When to call a professional instead of troubleshooting
If you smell gas strongly around the fireplace, do not attempt to light it. Leave the house and call your gas company's emergency line. A strong smell indicates a leak that requires professional inspection before the fireplace can be used safely.
If the electronic ignition clicks repeatedly but the burner never lights, or if the pilot lights but the main burner does not follow, the problem is likely inside the gas valve or ignition system. These components require specialized tools and knowledge to repair. Similarly, if the pilot light goes out within a few minutes every time you light it, the thermocouple or thermopile (in some models) needs replacement. Attempting to force these repairs can damage the fireplace or create a safety hazard. A licensed HVAC technician or fireplace specialist can diagnose the issue and replace the faulty part in one visit.
Checking your fireplace manual for model-specific steps
Gas fireplaces vary widely in their ignition systems and control layouts. Before you attempt to light yours, locate the manual—it is usually in a pocket on the back of the unit or stored nearby. The manual will show you exactly where the pilot opening is, which direction to turn the control knob, and how long to hold the ignition button. Some fireplaces have a "Reset" step you must follow after the pilot goes out, and some have a safety lockout that prevents relighting for several minutes after a failed attempt.
If you cannot find the manual, search online for your fireplace's brand and model number. The model number is typically printed on a label inside the firebox or on the back of the unit. Manufacturer websites usually offer free PDF downloads of manuals. Having the correct manual saves time and prevents you from accidentally damaging the fireplace by using the wrong procedure.
Frequently Asked Questions
How long should I wait after turning off the gas before trying to light the fireplace again?
Wait at least five minutes. This allows any unburned gas in the firebox to disperse. If you try to light the fireplace too quickly, you risk a small explosion or flash when the igniter fires. Five minutes is the standard safety interval recommended by most manufacturers.
What if the pilot light is lit but the main burner won't start?
Turn the control knob to "On" and wait 10 to 15 seconds. If the main burner still does not ignite, turn the knob back to "Off," wait two minutes, and try again. If this happens repeatedly, the problem is usually a faulty gas valve or a clogged burner opening. This requires professional service.
Can I use a regular lighter instead of a long lighter to light the pilot?
A regular lighter can work, but it is risky. The pilot opening is often deep inside the firebox, and a short lighter can burn your hand or fingers before you reach it. A long lighter or long wooden match is much safer and gives you better control over the flame placement.
Is it normal for the pilot to go out if I don't use the fireplace for a few weeks?
Yes, it is normal. If you leave the fireplace unused for weeks or months, the pilot may go out on its own due to drafts, dust accumulation, or a weak thermocouple. straightforward relight it using the steps above. If it goes out again within a few hours, the thermocouple may need replacement.
What does it mean if I hear a clicking sound but no spark appears?
The igniter is firing, but the spark is not visible—this is normal in many models. The spark happens inside the firebox where you cannot see it. If the burner does not light after 15 to 20 seconds of clicking, the spark may be too weak to ignite the gas, which usually means the igniter needs replacement.