Gas Water Heater Pilot Light Thermocouple Replacement

The thermocouple is the brain of your water heater.

Gas water heater pilot light thermocouple replacement. The thermocouple is part of the pilot burner assembly and connects to the gas control valve on the outside of the water heater. Once you re done put it back and light your water heater. If your hot water heater suddenly stops working chances are a bad thermocouple has shut off the gas to the pilot light. Light the pilot following the instructions on the water heater.

It s responsible for closing the gas valve when it senses the pilot light is off. Since almost all major brands of atmospherically vented water heaters have switched from a thermocouple to a t. 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. 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.

How to replace a thermopile on a water heater. Attach the thermocouple and reinstall the burner assembly. Check for gas leaks by applying soapy water to joints and looking for bubbles while the main burner is firing. 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.

If you are able to light the pilot on the gas fired appliance but when you release the gas control from it s light position the pilot immediately goes out if there was a good solid flame that was clearly touching and heating the thermocouple that is the thermocouple was properly positioned in the pilot flame and if you are sure that you. Replacement is an easy diy repair. A thermocouple senses the heat of the pilot and allows gas to flow to the burner. How to replace rheem water heater thermocouple pilot light water heater pilot light won t stay lit most common problem for gas water heater.

The flame should be blue and steady. A bad thermocouple will shut off gas to both the pilot and the.