Replacing Thermocouple On Water Heater

Learn how to replace this inexpensive part and keep your hot water heater working for years to come.

Replacing thermocouple on water heater.

Once you start replacing a water heater you have to finish. Test the thermocouple connection to the gas control valve with soapy water. In simple terms it s a short piece of tubing that runs from the gas controller to the pilot. A thermocouple or flame sensor is a device used to control gas flow in gas water heaters on older style heaters with standing pilot lights the device is typically called a thermocouple while on newer units with electronic ignition the same or virtually the same device is called a flame sensor for our purposes we ll refer to both devices as the thermocouple.

The thermocouple is a thermoelectric device that shuts off the gas if the pilot light goes out. 1 cause of pilot lights that won t stay lit is a worn out. Make sure your home is equipped with carbon monoxide detectors when gas powered appliances are present. If you have a gas water heater with a pilot light that won t stay lit it s probably due to a failed thermocouple.

Check the pilot light to make sure the flame heats the last 1 2 inch of the. The thermocouple is a special sensing tube on gas water heaters that senses when the pilot light has flame and shuts off the gas to the unit when the pilot has been extinguished. Smith and state branded tanks. Remove the burner assembly and detach the thermocouple.

Replace thermocouple water heater. Podoy 39 098514 01 thermocouple replacement for desa lp glow warm comfort glow vent free heaters 098514 02 71 031 0120 ssn18tb ssl18tb md200tbe 4 6 out of 5 stars 82 reliance water heater pilot assembly 100109295 9003542005 replacement part natural gas compatible with reliance a o. No bubbles mean no gas leak. By james carey morris carey.

A hot water heater that doesn t heat might just need a new thermocouple. Turn on the gas valve that supplies the water heater. For detailed steps on how to replace or install a water heater read our install an electric water heater and install a gas water heater articles. Follow the manufacturers instructions to light the pilot.