Gas Water Heater Thermocouple

The thermocouple is part of the pilot assembly where one end is always in contact with the pilot flame while the other side is connected to the gas control valve.

Gas water heater thermocouple.

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. 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. Universal gas thermocouple includes universal adapter fittings and is compatible with screw in push in or clamp type pilot burners. 4 7 out of 5 stars 189.

Smith and american branded heaters 4 4 out of 5 stars 163 129 00 129. This signal keeps the gas valve open. A faulty thermocouple or one that is simply dirty may consistently prevent the gas valve from opening or the pilot from staying lit. If the pilot light goes out the thermocouple acts as a safety device by preventing the gas valve from opening and potentially filling the area surrounding the water heater with natural gas.

Diy hot water heater repair. The gas water heater thermocouple is the safety element that is designed to inform a gas control valve is the pilot flame on or off and open or close the gas to the main burner. It is designed for gas furnaces and 30 mv systems. Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve.

Reliance hot water heater gas control valve 100112336 9007884005 100093974 1 cavity thermostat compatible with reliance state a o. Honeywell home cq100a1005 u cq100a1005 replacement thermocouple for gas furnaces boilers and water heaters 36 inch. For gas furnaces and 30 mv systems. 9 79 9 79 13 99 100 g get it as soon as thu sep 24.

The honeywell 24 in. Positive positioning for quick insertion. First shut off the gas valve on the water heater and the gas valve on the gas line near the heater. The burner typically sits loosely or under clips in the burning chamber and just slides out.

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