Replacing Thermal Coupler On Water Heater

My 8 year old water heater stopped working.

Replacing thermal coupler on water heater.

It s a cylindrical probe about 4 inches long and a quarter to a half inch in diameter that s attached to a 1 to 2 foot length of copper tubing. Smith state and polaris products 9006101205 and 9004504205 model db1205 109 99 109 99. In simple terms it s a short piece of tubing that runs from the gas controller to the pilot. I asked if i needed to replace the water heater but repairman said no.

The thermocouple is a thermoelectric device that shuts off the gas if the pilot light goes out. I feel like i was overcharged. The probe is positioned next to the pilot opening so that its tip is in the flame when the pilot is on. 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.

By james carey morris carey. 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. Learn how to replace this inexpensive part and keep your hot water heater working for years to come. I had a repairman out who replaced the thermocoupler valve and union ground.

Bradford white 40 gal. Afterward i looked online and found that the part is very inexpensive. Rheem gasket replacement kit with thermocouple for fvir water heater model rh20064 19 98 19 98. 1 cause of pilot lights that won t stay lit is a worn out.

A hot water heater that doesn t heat might just need a new thermocouple. He was here 45 60 min. 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. Directbrand hot surface water heater igniter for a o.

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