Gas Hot Water Heater Thermocouple

A gas water heater in boise baton rouge buffalo or boston uses a thermocouple that includes a probe attached to a copper tube that screws into a port on the gas valve.

Gas hot water heater thermocouple.

For pricing and availability. For pricing and availability. The thermocouple is a thermoelectric device that shuts off the gas if the pilot light goes out. When you re having trouble getting the pilot to stay lit it could be because the thermocouple needs to be replaced.

If the thermocouple is working you should be able to measure 30 to 40 millivolts of voltage at the connection end of the tube when the pilot flame is on. Remove the burner assembly and detach the thermocouple. A hot water heater that doesn t heat might just need a new thermocouple. If you have a gas water heater with a pilot light that won t stay lit it s probably due to a failed thermocouple.

By james carey morris carey. In simple terms it s a short piece of tubing that runs from the gas controller to the pilot. Smith models fpsh 40 50 and fpst 50. Smith signature 50 gallon tall 6 year limited 40000 btu natural gas water heater.

Universal gas thermocouple includes universal adapter fittings and is compatible with screw in push in or clamp type pilot burners. The thermocouple is part of the pilot burner assembly and connects to the gas control valve on the outside of the water heater. For example sid harvey s dyna couple universal mounting thermocouple sold in lengths from 18 to 48 will replace honeywell robertshaw penn baso white rodgers and other thermocouples. This signal keeps the gas valve open.

Smith water heater isolation valve. Replacement thermocouples using universal mounting include clips and fittings that will work on most gas fired heaters and water heaters. 1 cause of pilot lights that won t stay lit is a worn out. Learn how to replace this inexpensive part and keep your hot water heater working for years to come.

It is a simple device that converts the heat from a burning flame into a small electrical current allowing it to work like a switch to control the flow of gas from the gas supply valve. For gas furnaces boilers water heaters room heaters the honeywell 24 in.