The ignition assembly is a common component of gas fireplaces. If a fireplace won’t stay lit, it is likely that there are problems with one of the components called the ignition assembly. These include the pilot light assembly and pilot tubing as well as the thermocouple.

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The most common reason of a gas fireplace’s pilot light not keeping lit is a thermocouple. The thermocouple, a safety device that is part of the ignition system, is an element. The purpose of the thermocouple is to prevent the gas valve from opening if the pilot lamp isn’t on. This device is essential to prevent gas from leaking into your home without causing gas damage.

A thermocouple, a rod of metal that extends in front of the pilot, is a device that senses if there is a flame. It detects whether flame is present. It heats the thermocouple if the pilot light is on. 

If your pilot light isn’t staying lit, you can clean off your thermocouple. After a season of usage, it is not uncommon for the thermocouple’s carbon deposits to build up. Your thermocouple will be in direct flame for its entire life.

You can clean it off if you find carbon buildup after inspecting it. A strip of fine-grit sandpaper is the best tool to clean it. You can lightly rub the surface back and forth until you see it shine again. You’ll often find that this is enough to fix a fireplace which won’t keep lit.

If this doesn’t work, it’s recommended that you call a professional. A thermocouple is not difficult or costly to replace. However, it isn’t expensive to have it repaired by a fireplace contractor. The difference is that the contractor can inspect all other components and clean them while he’s there.

Moreover, improper gas pressure – A manometer is a device that monitors the gas flow via the valve and is used by fireplace specialists. The fireplace will not light if the gas pressure isn’t set correctly. The technician can calibrate it if it is just out of adjustment. If you have a manometer and are acquainted with its use, you can accomplish this quickly. This article assumes that most people don’t have a manometer.