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.
Gas water heater thermocouple.
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This signal keeps the gas valve open.
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The element is built for reliability and long life.
Then unfasten the three nuts that hold the thermocouple and the two gas tubes to the valve.
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.
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.
It is designed for gas furnaces and 30 mv systems.
First shut off the gas valve on the water heater and the gas valve on the gas line near the heater.
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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.
The burner typically sits loosely or under clips in the burning chamber and just slides out.
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 faulty thermocouple or one that is simply dirty may consistently prevent the gas valve from opening or the pilot from staying lit.
Universal gas thermocouple includes universal adapter fittings and is compatible with screw in push in or clamp type pilot burners.
Positive positioning for quick insertion.
A thermocouple or flame sensor is a device used to control gas flow in gas water heaters.
For gas furnaces and 30 mv systems.
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