Unlike the some of the other pieces that can be checked visually and removed easily, you may need a professional plumber to help with this kind of an install since a gas valve is heavy duty stuff compared to tiny thermocouple. If you have tried all the other solutions and nothing seems to work, then you may want to replace the gas valve. It's very rare that the gas valve goes bad, but it can happen. You’ll know when the gas flow is bad because you won’t get a blue flame. Try an air compressor to blow out the jets or clean the burner with soap and water. These tiny holes can become dirty or clogged from carbon very easily. It is a piece with many small holes in it that allow gas to flow through toward the pilot. The burner is located below the pilot light and thermocouple. If so, remove it and then reinstall it, using a screwdriver to remove the mounting screws. Once the flame has been turned off and the metal has cooled, check to see if the thermocouple feels loose. The tiny metal rod should actually directly cross the burning flame.

Similarly, make sure that the pilot flame is actually reaching the thermocouple. Unless the flame is bright blue in color, it isn’t providing enough heat for the thermocouple to work properly. While the pilot light is ignited, use a flashlight to look into the pilot hole opening. Each kit will come with varied nut adapters that can be matched up with your current size. If this is the case, remove your old thermocouple with a small wrench and take it to the hardware store with you so that you can correctly match up the length and nut size with the new one you’ll purchase. If the pilot repeatedly doesn’t light after multiple tries, then the thermocouple is probably bad. If the pilot doesn't light, wait a couple minutes and try again.

Hold it down for at least 30 seconds in order for the thermocouple to get warmed up. To find out if you need a new one, turn the gas valve to pilot and then depress the override button. The thermocouple also contains wiring that goes to the gas valve and makes electricity to light the pilot. It's a safety device that delivers gas from the gas valve to the pilot light. The thermocouple is a small metal piece that crosses paths with the burning flame of the pilot light. If you do notice it’s overflowing, use a pipe wrench to open the cap and drain out any liquid.Ĭheck out pipe wrenches on Amazon 2. Even with that being a part of its design, it’s possible for the drip loop to overflow leaving the gas line susceptible to moisture. This part is called the 'drip loop,' and it’s designed to catch excess moisture or condensation to avoid problems just like the ones you’re experiencing.

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