How Do You Fix a Gas Fireplace That Keeps Going Out?

  • Make sure your pilot light is lit (here’s how)
  • Pilot light is the main reason behind a leaking gas fireplace.
  • A thermocouple with less than 25 voltage is damaged and should be replaced.
  • Thermopiles less than 300 millivolts should be replaced.

Your gas fireplace has a sensor that should be cleaned if it keeps on going out. In most cases, the oxy pilot responsible for monitoring oxygen levels in the fireplace is faulty. This will often lead to a gas leak.

Steps Of Fixing a Gas Fireplace That Keeps Going Out

This article will discuss how to fix the gas fireplace that keeps going out.

Step 1: Check the Pilot Light

The pilot light is arguably the most common fix for any gas fireplace. It might be having issues if it does not lit. Typically, the pilot light is easily operated using a control panel.

This feature is located behind the logs. What if you can’t find your key? Consider buying a replacement at most online stores.

After purchasing the pilot light, check the manufacturer manual to see what you should do on your fireplace.

To access the control panel, you must remove the front cover of your fireplace. This can also be done through a gas valve knob and key models. It’s worth noting that some fireplaces are designed with a key.

In that case, you should insert the key into the gas valve.

Using the key, turn the knob in a clockwise manner. If done correctly, gas will be released, which will cause the pilot to light. Although it’s rare, there are still fireplaces that feature a control panel.

You must switch off the control knob. Allow the gas to clear for at least five minutes.

Ensure that the gas line is parallel with the shutoff valve. Check if the control knob is in the pilot position. This should always be done before lighting the pilot feature.

As you hold the knob down, press the ignition switch until it’s red. To achieve this, you must press the ignition switch several times.

Users are advised to give the thermocouple enough time to heat. Fortunately, you only need to hold the control knob for 30 seconds. Don’t forget to turn on the control knob.

Check the pilot color once you have turned it on.

A working pilot light must be dark blue, specifically around the edges. The gas on the fireplace might be contaminated if the flame is yellow or bright red. Contaminated gas is associated with burning rust and excess air.

Soot and dirt will lead to toxic chemicals if not burnt completely. Remember that a yellow flame is a good indicator of carbon monoxide.

It is advisable to switch off the unit once you have noticed a yellow flame on the fireplace. To guarantee that the air is safe for humans, you should switch off the unit.

Step 2: Clean the Pilot Light

Clean the Pilot Light

The gas supply on the fireplace should be turned off. Also, remove the pilot light and clean any rust buildup using a wire brush. Hard to access areas should be cleaned with compressed air.

Light the pilot light again after cleaning it. The thermocouple might be having issues if the pilot does not stay lit. If the pilot light is on and your fireplace lit dimly, then the thermopile has problems.

Step 3: Check Voltage

Check Voltage


It’s time to check the voltage on both thermocouple and thermopile. You will have an easy time checking the voltage if you have access to a multi-meter. Locate TH/PT with the manufacturer guide.

Replace the thermopile if its voltage is below 300 millivolts. On the other hand, a thermocouple with less than 25 volts should be replaced immediately.

To replace the thermocouple, you should clean the device first. Usually, the thermopile and thermocouple are found near the pilot light.

Wash away any dirt or soot with a steel brush or grain sandpaper. Relight the fireplace to check if the problem is fixed completely. Turn off the gas and check the pilot feature.

Using a pair of pliers, unscrew the oxy pilot. Make sure to blow air on the oxy pilot holes. You can do this with a straw or compressed air.

Reasons Your Gas Fireplace Keeps Going Out

Reinstall the device once all the holes are clear. If all the above fails, it’s the right time to replace your sensors and oxy pilot.

Reasons Your Gas Fireplace Keeps Going Out

Even after fixing what we have discussed in this article, you may observe that your gas fireplace is still leaking. Let’s discuss some of these reasons.

Gas Pressure

Gas Pressure

Your gas fireplace will continue leaking if you have not set the gas pressure correctly. If that happens, it’s time to ask for help from a professional technician.

Faulty Gas Valve

Faulty Gas Valve

It’s worth noting that a faulty gas valve is rare. However, this can be a fire hazard when it happens. A trained expert should only replace a defective gas valve.

The Burner Ports are Blocked

You might be aware that dirt and soot may block gas flow. Blocked burner ports have been associated with fire in the fireplace.

What Should You Do If You Smell Gas?

Open windows and doors if you smell gas from your gas fireplace. Kindly leave your home immediately the gas smell is very strong. It is also advisable to call a gas provider or report an emergency.

When to Call a Professional

When to Call a Professional


You will quickly fix your leaking gas fireplace if you have experience or a fireplace manual from the manufacturer. You can fix the fireplace yourself without any hassle.

However, calling a fireplace expert is the best solution for many people who have no experience handling fire.

Reason Your Fireplace Keep Going Out

Your gas fireplace might have dust and rust on the pilot feature. Dust and rust will make the gas valve shut off, which will make the gas fireplace go out after a few minutes.

Final Thoughts

After reading the above article, you can now fix your leaking gas fireplace in minutes. Make sure you have enough experience to handle the leaking fireplace.


Eugene Duke Pic

Hi, my name’s Eugene Duke and I love sitting by my fireplace reading a book and sipping on an adult beverage. Do you have a fireplace in your house? I’ll help you figure out the best type and style of fireplace for your home.


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