Why does my gas fireplace light and then go out?

Why does my gas fireplace light and then go out?

If you get dust in the pilot assembly and the pilot needs to be cleaned out, it produces a “lazy” flame, which will be disturbed by the draught of the main burners. The flame lifts away from the thermocouple and causes the temperature on the tip of the thermocouple to drop. This, in turn, makes the gas valve shut off.

How do you clean a thermocouple on a fireplace?

The best way to clean your thermocouple is to use either a piece of steel wool or the coarse side of a sponge to gently clean off any soot or other remnants. You can use a pencil eraser to clean between the threads of the screw that connects the thermocouple to the control valve of your system.

Why does my fire pit keep going out?

Another common reason why campfires go out is because the wood is wet. In order for wood to light — and stay lit — it needs to be dry. If it’s too dry, combustion won’t happen; thus, the campfire will likely go out. If you’re camping in an area where there’s little-to-no dry wood, consider bringing your own.

How do you fix a fire pit that won’t stay lit?

Propane Fire Pit Won’t Stay Lit Tighten the connection between the propane fire pit thermocouple and the gas valve with a wrench; finger-tight is not tight enough. Move any small rocks in the pit away from the pilot tube and thermocouple. One of them may be blocking the thermocouple from the pilot.

How do you bypass a thermocouple on a fire pit?

To bypass the thermocouple:

1. Move the tilts switch wire aside.
2. Remove your thermocouple from the heater using an 8mm wrench.
3. Pull the valve housing aside using your 13mm socket wrench.
4. Remove the valve using your pliers.
5. Put your thermocouple back into position.

What does a bad thermocouple do?

If the appliance has a thermocouple, the problem may be a faulty thermocouple. The thermocouple, which operates as a safety device, turns the gas supply off when the pilot light goes out. When a thermocouple fails, the pilot light won’t stay lighted. A burned out or broken thermocouple should be replaced.

Can you fix a thermocouple?

If the pilot lights but the flame goes out as soon as you release the button after holding it for 60 seconds, then the thermocouple is bad. It’s possible to replace the thermocouple without removing the burner assembly, and many repair people do this.

How do you fix a pilot light that keeps going out?

This is and easy fix, simply let it cool down and brush off the dirt or debris. Your thermocouple might bend. The end that sits near the pilot light flame is what communicates with the gas valve and tells it to open or close. If it is bent away from the flame it won’t register heat and will keep the gas valve closed.

How long does a thermocouple last?

Thermocouples are rigorously tested and should last for years. Indeed, experts believe a four-year check cycle is all that is needed to make sure things are functioning properly.

When should a thermocouple be replaced?

If your pilot light won’t stay lit, the thermocouple probably needs to be replaced. A new one costs about $5 to $10 and is easy to install: Turn off the gas supply.