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.

A thermocouple can be found in diesel engines gas turbines kilns gas water heater temperature sensor in thermostats etc. Replacement thermocouples using universal mounting include clips and fittings that will work on most gas fired heaters and water heaters. In simple terms it s a short piece of tubing that runs from the gas controller to the pilot. This is a safety device whose purpose is to monitor the pilot light and send a signal that shuts the gas burner valve should the pilot.

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. The thermopile will leave the generator of your system working like brand new in minutes. Since almost all major brands of atmospherically vented water heaters have switched from a thermocouple to a t. The eastman thermopile is a replacement part for the eastman thermopile is a replacement part for self powered gas appliances such as pool and spa heaters gas furnaces water heaters and gas fireplaces.

Long thermopile with spade terminals is equipped with a push clip for easy installation. The gas water heater thermocouple consists of two different metals joined together so when heated by the pilot flame a small electric current generates. Diy hot water heater repair. When you re having trouble getting the pilot to stay lit it could be because the thermocouple needs to be replaced.

The thermocouple is a thermoelectric device that shuts off the gas if the pilot light goes out. If for any reason the pilot flame is gone the thermocouple cools down interrupting the electric current so the electromagnet closes the gas valve and shuts down the water heater. Right next to the pilot light is a small metallic tube known as a thermocouple. 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.

They can prevent power from reaching the pilot light thus the water won t heat up. The pilot end of the thermocouple and the pilot are held side by side in a bracket that s anchored to the burner. The burner typically sits loosely or under clips in the burning chamber and just slides out. First shut off the gas valve on the water heater and the gas valve on the gas line near the heater.

This signal keeps the gas valve open. A water heater or furnace thermocouple is a heat sensitive probe that sends an electric signal to the gas valve whenever the pilot is lit. Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve. Corrosion and buildup are some of the things that can affect a thermocouple.