Why is gas not flowing to a gas fireplace?

Author: Judson Lang II  |  Last update: Thursday, March 6, 2025

Ensure the propane tank valve is also open and there is sufficient gas in the tank. If you have a natural gas line, verify that the main shutoff valve is also Open. If the main gas line is open but isn't delivering gas, contact your local gas utility company to determine if there is an interruption in your gas service.

How do I get gas to flow to my fireplace?

Insert the Key and Ignite: Place the key into the gas valve slot, which is usually on the wall or floor near the fireplace. Hold a long lighter or match near the burner area. Turn the Key Slowly: Turn the key counterclockwise to open the gas valve while keeping the lighter close.

Why is my gas fireplace not getting gas to the pilot?

If you're sure the gas is on, then you may have a clogged orfice or gas line. Try blowing out the pilot with some type of straw or tube. If it doesn't work, trail the line from the pilot to the valve, clear it.

What happens if a gas fireplace vent is blocked?

Blocked Vent

If debris or dirt is blocking one of the gas lines, it will prevent heat from reaching the thermocouple, a safety mechanism that turns off the gas flow if the appliance is not hot enough. And this blocked vent can obstruct a gas fireplace from working.

How do you fix a gas fireplace that won't ignite?

Try turning the fireplace on, letting the pilot light and the sparking stop and then take something like a screwdriver and firmly tap on the side of the gas valve with the handle of the screwdriver and it'll more than likely fire right up. Usually this isn't a recurring issue and you'll probably be fine going forward.

Gas Fireplace Main Burner Won't Light

How much does it cost to replace a gas fireplace igniter?

Gas fireplace igniter replacement cost

A gas fireplace igniter costs $90 to $150 to replace, including labor. This component uses electricity to ignite the gas and start the fire. Over time, the igniter may stop working from age or damage.

Why is my gas fireplace having a flame but wont start?

If your pilot is lit and the fireplace isn't igniting when you push the button or flip the switch, the igniter may be dirty or defective. Clear away any dirt or debris that may be in the way between the igniter and thermocouple or thermopile.

How do you unclog a gas fireplace?

How to Clean a Gas Fireplace
  1. Turn Off the Gas. Before you do anything, turn off the gas. ...
  2. Disassemble the Fireplace. Carefully disassemble the logs and remove the burner unit. ...
  3. Brush and Inspect. ...
  4. Vacuum Away Dust and Cobwebs. ...
  5. Polish Glass or Metal. ...
  6. Wipe Down the Mantel and Hearth. ...
  7. Reassemble the Gas Fireplace.

What is the most common problem with a gas fireplace?

One of the most common problems faced by homeowners with gas fireplaces is the pilot light going out or not staying lit. The pilot light is a small flame that ignites the gas burner, which produces the heat for your fireplace — if the pilot light goes out, your fireplace won't work.

Why is there no gas coming out of my gas fireplace?

If your fireplace uses a propane tank, check that the gas knob is switched on. If it is not delivering gas with the knob open, then the gas tank may be empty. You need to contact your supplier for a refill. Similarly, if you have piped natural gas, you need to check that the gas knob is on.

Why is there no gas to the pilot light on my gas fireplace?

Cleaning the pilot tube is usually necessary to restore proper gas flow to the flame. Sometimes, air can become trapped in the gas line, particularly if the fireplace hasn't been used for a while. This air can prevent gas from reaching the pilot light.

How do I increase gas flow to my fireplace?

The higher the pressure a regulator can maintain, up to the BTU pressure at your fuel source, the better your gas flow and resulting flame. If you find that nothing else is working to provide you with the impressive fire you seek, consider upgrading your regulatorto one with a higher BTU capacity.

Where is the gas orifice on a gas fireplace?

In gas-burning applications, the burner orifice is usually just above the hearth, with the fireplace gas valve control, module controls, and transformer mounted below the hearth for protection from the heat.

Why did my gas fireplace suddenly stop working?

Faulty thermostat, thermopile, or thermocouple.

Depending on the age of your unit, you'll have a thermostat or thermopile between your gas valve and pilot light that contributes to ignition. If it's loose or faulty, or if your thermostat is malfunctioning, it may prevent your fireplace from turning on.

Should I hear the gas in my fireplace?

Noises occur because the high-pressure flow of the gas through the tubing is disrupted. In order to avoid obstructions, make sure to keep the fireplace as clean as possible. If the above solutions don't work and the noise is still occurring, then the help of a professional is required.

How do I get my gas fireplace to work?

Press the control knob down and hit the ignition switch.

To ignite the pilot light, press your finger into the center of the control knob and hold it in place. Then, hit the fireplace's ignition switch, which is typically a red button located near the control knob. Tap the switch until the pilot light ignites.

How do I get my gas fireplace to work again?

Pilot Light: Start by checking the pilot light. If it is out, resetting it could be all you need to fix the problem. Thermocouple/Thermopile/Oxygen sensor: Next, check each of these sensors to make sure they are functioning properly. Start with the thermopile to see if the valve is letting gas in.

How to fix a gas line blockage?

If you notice signs of a gas line blockage, turn off your home's gas supply and call a plumber who specialises in gas line repair. The plumber can help you locate the source of the clog and clear it with a special probe or drain auger.

Why is my gas fireplace not holding a flame?

When your gas fireplace won't stay lit, it's often due to pilot light, thermocouple, or gas supply issues. Regular maintenance, cleaning debris, and inspecting components can resolve most problems. However, safety concerns and complex repairs should be handled by a professional.

Why is my gas fireplace not lighting when the switch is on?

Common Reasons Why a Gas Fireplace Switch Stops Working

If the wiring is loose or corroded, the signal won't reach the ignition system. Check the switch and the wiring leading to the fireplace for any visible issues. If your gas fireplace uses a remote control, the issue might be as simple as dead batteries.

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