How To Replace A Thermocouple On A Gas Fireplace. Thermal coupler gas fireplace and found this info in dyi website. It generates about 750 mv that turns on the main gas valve to the fireplace.a thermocouple is heated by the pilot light but it uses pressure to hold the pilot light gas supply valve.
Please visit the troubleshooting guide options or continue reading for a more in depth look at gas fireplaces and how they work. First, check to see if your pilot if your pilot light ignites but won't stay lit, then the problem is most likely related to your thermocouple, a metal sensor (about the size and shape of a. If the pilot is lighting, but not staying lit, it indicates that the thermocouple is. A thermocouple is generic except for it's length.
Use this free guide to diagnose and make repairs around your home.
If the pilot is lighting, but not staying lit, it indicates that the thermocouple is. Older gas appliances may have pilot lights that provide instant ignition when the gas is turned on. Posted by anonymous on nov 11, 2016. A gas fireplace thermocouple is a safety device that measures heat and recognizes if a pilot light has gone out, shutting down the fuel supply (such as gas or replacing the thermocouple is quick, and something you can easily do yourself.
