Why do water heater thermocouples go bad?

Why do water heater thermocouples go bad?

It’s Dirty. Soot buildup on the thermocouple may block the flame. Under constant exposure to a hot flame, a thermocouple wears down over time. Even a slight residue can make the thermocouple malfunction.

What does the thermocouple do on a gas water heater?

The thermocouple is a special sensing tube on gas water heaters that senses when the pilot light has flame, and shuts off the gas to the unit when the pilot has been extinguished. The thermocouple and pilot light tubes both extend from the gas control valve to the burning compartment.

Is it easy to replace a thermocouple heater?

When you push it back into the door, it will reseal. Be careful when removing and reinstalling the nuts to the thermocouple, burner tube and pilot tube. The metal is very soft and can easily be cross threaded or cracked it tightened too much. This is an easy do it yourself project, perfect for homeowners. Loading…

Is the thermocouple part of the pilot light?

The thermocouple is an essential element of your gas water heater’s pilot light, ensuring more efficient water temperature management. Unfortunately, it can rust or wear out over time.

Why does my washing machine have a dirty thermocouple?

If the hot water temperature setting on your washing machine doesn’t seem to be working, you’ve been washing your dishes with lukewarm water, or you’ve been experiencing the dreaded cold shower, chances are your home’s water heater is malfunctioning. If you have a gas water heater, a dirty thermocouple could be to blame.

How do you change a thermocouple?

The only tool you need to replace a thermocouple is a wrench. Use it to unscrew the connector that holds the thermocouple to the gas valve, then unhook the probe from its clip and pull out the entire thermocouple assembly. Before you do this, be sure to turn off the line valve on the gas supply.

Where is the thermocouple on a GE water heater?

The thermocouple is attached to the water heater at two locations. The first location is at the underside of the gas valve. The thermocouple looks like a bare copper wire with a fitting on the end.

What is a heater thermocouple?

A thermocouple is a sensor that measures temperature. A water heater thermocouple is an important safety device inside your gas-fueled water heater, preventing both explosions and the dangerous release of uncombusted natural gas.

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