How Long Does A Boiler Thermocouple Last in How To

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How Long Does A Boiler Thermocouple Last. Most hardware and home improvement stores have replacements in stock. Should a pilot light always be on?

How Long Does a Furnace Last?
How Long Does a Furnace Last? from www.sperrs.com

Thermocouples can last several years, but they don’t typically last as long as the furnace itself. It does this by sending a tiny electric current to a sensor on the gas valve signaling the valve to stay open. If the pilot remains lit, but the main furnace doesn't stay lit, it's time to replace the thermocouple.

How Long Does a Furnace Last?

Proper positioning helps the thermocouple last longer. How long will a thermocouple last? Continue reading below our video of the day. The thermocouple can do this because, in its probe, it contains two different metals, and a voltage is generated when one of them is heated.