Water Heater Pilot Light Won T Stay Lit After Replacing Thermocouple

As a result the pilot doesn t get enough fuel to stay lit.

Water heater pilot light won t stay lit after replacing thermocouple. After the plumber replaced the control valve then it stays lit. The thermocouple has been damaged. Read on to learn how to light a pilot light. Therefore a dirty thermocouple might be the reason why your water pilot keeps going out.

You can usually replace a thermocouple for minimal cost and in less than an hour. Another important project all homeowners need to know is. It happened to me. This usually happens when the tube is kinked at one or many points.

No hot water on a cold monday morning. A layer of dirt and grime can hinder the electric current from reaching the thermocouple. If you re fairly certain this is the source of the problem you will either need to have the thermocouple replaced or repaired. As a result the gas supply will be cut off and the pilot light will go out.

Sometimes if the gas valve is just barely bad a hotter thermocouple will work for a short time but finding a hotter thermocouple is just hit and miss. Check the flex tube. Check along the tube to straighten it so there s no obstruction to the flow of gas. If their is a good flame on the thermocouple then it is a bad gas valve.

There is a chance that your thermocouple has simply gone bad and is the reason your pilot light won t stay lit. It s the coldest day of the year and you just realized your heat is not working. The flex tube is how the gas reaches the device and if the continuous flow of gas is interrupted the pilot light won t stay lit. I have seen people try 4 thermocouples and the fifth one worked then they claimed the other four were bad.

You ll get your hot water going without waiting for a pro to show up and save the cost of a service call for a gas water heater repair. If the pilot doesn t relight if it goes out right after lighting or if the pilot light keeps going out by far the most common cause is a bad thermocouple. If the pilot will lit but goes out after it reaches the temperature it is the control valve. Dirt and debris can collect in the pilot tube causing the flow of gas to be blocked.

This is also a likely cause if the pilot won t ignite at all.