How To Replace Thermocouple On Gas Water Heater?

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So, How To Replace Thermocouple On Gas Water Heater

Thermocouples are used to measure the temperature of hot water in the tank. If you have a gas water heater then you will need a thermocouple to measure the temperature of the water. If your thermocouple is damaged then it is very important to replace it as it can cause a lot of problems.

Thermocouples are small parts and they are very sensitive, so it is better if you don’t touch them. A good way to replace a thermocouple is to use an accurate and easy-to-use replacement thermocouple kit. You will find that these kits are available at most gas companies.

How to install a thermocouple

To replace a thermocouple, first disconnect the water supply from the faucet, gas valve or control board. Then, check if the thermocouple has been installed correctly. If you have found that the thermocouple has not been installed correctly then you need to replace it.

Steps to install a new thermocouple:

1. Remove the thermostat by removing the screws.2. Turn the thermostat and gas valve clockwise.

3. Disconnect the power cord from the wall socket.

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4. Disconnect the ground wire from the wall socket.

5. Attach the new thermocouple on the thermostat and turn the thermostat clockwise.

6. Connect the wire with the ground and the supply wire.

7. Replace the thermostat.

8. Turn the gas valve clockwise.

9. Connect the power cord.

10. Reconnect the ground wire.

11. Reconnect the supply wire.

12. Turn the gas valve counter-clockwise.

13. Turn on the water supply.

14. Turn on the gas.

15. Adjust the temperature of the hot water.


I hope you liked this post about “How To Replace Thermocouple On Gas Water Heater”. I know some of you have already replaced your thermocouple, but I am sure you will love the results.

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What is a thermocouple?

Thermocouples are used to measure the temperature of the water in a gas water heater. They are used in many different ways, but the most common use is to tell the gas water heater when the water is ready.

How do I check the thermocouple on my water heater?

If the thermocouple is working, it will be located near the top of the water heater. There will be two wires that are connected to the thermocouple. You should have an electrician check the thermocouple for you.

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What do I do if I need to replace the thermocouple?

The thermocouple will be removed and replaced by an electrician. You should let your electrician know that you have a gas water heater so he can order the correct replacement parts.

What are the different types of thermocouples?

There are many different types of thermocouples. You want to make sure you buy the correct type of thermocouple for your water heater.

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How often should I replace my thermocouple?

Thermocouples are usually replaced every five years.

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