How To Replace A Thermocouple Of A Gas Water Heater?

A thermocouple is a major part of a Gas Water Heater. A thermocouple is one type of sensor which allows gas to go to the gas chamber through the gas valve. This sensor is fitted between a gas valve and pilot. Two thermocouple ends are connected with the copper wire. Sometimes, it creates some problems. To fix any kind of thermocouple issue you have to repair the thermocouple. However, repairing a thermocouple is quite easy if you have a manual pilot heater. For repairing thermocouple of a spark igniting gas heater, you should opt for repairing experts. Let’s check out how to replace a faulty thermocouple of a gas water heater.

Step 1: At first, you have to turn off the supply of the gas. After that, the control valve should be turned on. Then, you need to turn the knob to OFF.

Step 2: Now, you have to cool down the gas water heater. If it is not then waiting for complete cooling.

Step 3: In this step, you need to open the burner access panel carefully. This panel generally has an inner and outer cover. Remove both the covers and then find the connection of the thermocouple. Then, check the copper wire at the housing of a gas control valve.

Step 4: After that, you have to open nut of the gas control valve with the help of a wrench. Then, pull out the copper wire and the nut from the control valve. Now, you have to reach carefully into the gas burner and twist gently the thermocouple.

Step 5: Once you have twisted the thermocouple, pull it out from its bracket. During this process, never bend the thermocouple bracket. You just carefully remove it from the gas burner. Now, you have to replace it with the new one.

Step 6: In this step, you have to straighten thermocouple wire. After that, place it inside the gas burner carefully and twist it into the bracket.

Step 7: you have to connect the outer part of the thermocouple with the control valve with the help of a hexagonal nut. A cross-threaded nut is not ideal for tightening. Now, you need to tighten the nut properly but don’t over tighten.

Step 8: Once you have done it, you have to install the burner cover and open the shut-off valve. Now the light on the pilot and check the thermocouple is working or not.

Hope, you have understood how to replace the thermocouple of a gas water heater. In Perth, you can easily purchase new thermocouple from your nearest retail store. If you want to replace it professionally then hire a Hot Water System Repair Company who can bring a new thermocouple for the replacement.