Some times with old lines particles can cause valve problems, Millivolt valves can fail for water in the line this is why we usually have a drip leg prior to the valve. I lighted the pilot and it appeared to work fine. Submitted: 11 years ago. It only takes a minute to sign up. Simple Hadamard Circuit gives incorrect results? Learn how to replace this inexpensive part and keep your hot water heater working for years to come. To learn more, see our tips on writing great answers. The pilot flame may be too weak to heat it to the proper temperature, and that could be because the pilot tube is blocked. Replaced the gas control with one from another tank and it worked for about a week. Curved Thermoc ouple. Remove the burner assembly and detach the thermocouple. Remove the burner assembly and detach the thermocouple. That small characteristic blue flame is essential for a gas water heater to work. The procedure for lighting a standing pilot always includes lighting the flame, then manually holding in the gas valve to keep the flame burning and give the thermocouple time to heat up. It’s easy to replace and a new one costs $5 to $10. Note: You must have the pilot lit and the burner on to test for leaks, so that gas is flowing through the large tube. Thanks. My water heater all of a sudden has become a big pain in my you know what. Sunday, we ran out of hot water, I checked and found one of them not lit. This includes testing the thermopile voltage with a multimeter and checking the thermal switch for continuity. This started occurring after I did some gas plumbing and had to relight the pilot. 3. If you can't clean it and get it to work a new valve can save the cost of a new furnace. The Pilot tube supplies gas to the pilot light for combustion. If the pilot doesn’t relight, if it goes out right after lighting or if it goes out repeatedly, by far the most common cause is a bad thermocouple. 2. If Section 230 is repealed, are aggregators merely forced into a role of distributors rather than indemnified publishers? I can get the pilot lit and it'll hold a flame. Replace the burner assembly if it's at fault. When a gas water heater pilot won’t stay lit, the water heater can’t heat the water inside the tank. 1 cause of pilot lights that won’t stay lit is a worn-out thermocouple. about $6 -10 at a hardware store or Home Depot. I replaced the pilot tip and went ahead and replaced the thermocouple. Lucky for you, the parts needed for the replacement/repair should cost under $20 and the time to repair won’t be long. Although a blocked gas line is one reason why the pilot light on a Rheem water heater won't light or stay lit, there are other reasons as well--some easier to correct than others. The pilot stays lit anywhere from 20 minutes to several weeks. The furnace is definitely over 30 years old and was likely installed in the 60's. When the gas burner comes on, use a 50/50 dish soap/water mix to test the screw joints for air bubbles that indicate leaks. If a disembodied mind/soul can think, what does the brain do? Why won't my pilot light stay lit on my hot water heater? A couple of days go by, and as I'm changing the humidifier filter, I notice the pilot light is out once again. I have seen people try 4 thermocouples and the fifth one worked then they claimed the other four were bad. A hot water heater that doesn't heat might just need a new thermocouple. Sometimes, the tube might be partially clogged and supplying very little gas for combustion- No wonder your pilot light keeps going out. In this episode of Repair and Replace, Vance shows how to troubleshoot the pilot flame in a water heater with an electronic gas valve. If the pilot light won’t stay lit and the thermocouple is okay, then the thermostatic control … Pilot light won't stay on? If it still won't stay lit then just replace it. The good news: You can usually replace a thermocouple for minimal cost and in less than an hour. By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. Is Mr. Biden the first to create an "Office of the President-Elect" set? It consists of a heat sensor connected to a solenoid; when the sensor is not heated by the pilot flame, the solenoid closes the gas supply line. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. The thermocouple is a thermoelectric device that shuts off the gas if the pilot light goes out. Now I can't get the pilot to stay lit at all. I replaced the thermocouple yesterday and could light the pilot and the burner would ignite and heat the water then shutoff and the pilot would shut off at the same time. No hot water? If the appliance has a thermocouple, the problem may be a faulty thermocouple. Why would merpeople let people ride them? This can help troubleshoot a water heater that is not heating water.In an open circuit test, a healthy thermopile should produce 650 - 850 millivolts DC. If your pilot light won’t stay lit, the thermocouple is very likely the culprit. Replace the thermostat if it doesn't turn on the burner to heat the water. I added a picture of what it looks like. Pilot on white rodgers rv hot water heater won't stay lit. In this case, the thermocouple needs to be replaced. I suspected the thermocouple and replaced it, but this didn't fix the problem. Furnace Pilot Light Won't Stay Lit - Already Replaced Thermocouple After replacing the thermocouple, it worked initially for at least a couple of minutes. When I light the pilot light it will stay lit, but once I turn up the thermostat the burner will only run for 10-20 seconds and then the burner and pilot light both go out instantly. Here are the top five reasons your pilot won’t stay on, as well as methods to fix each issue. How to build the [111] slab model of NiSe2 with different terminations with ASE tool? Show More. Replacing a thermocouple is easier than you think. This started occurring after I did some gas plumbing and had to relight the pilot. Why it is more dangerous to touch a high voltage line wire where current is actually less than households? Once you’re done, put it back and light your water heater. After installation, I also did the detergent test to make sure the gas connections are secure and not leaking. Why does my symlink to /usr/local/bin not work? Does anyone know what can cause this? What does "nature" mean in "One touch of nature makes the whole world kin"? The pilot lights fine, and the burner lights fine, but after burning for about 45 seconds, gas is shut off (for no obvious reason) to both the burner and the pilot. A universal thermocouple is inexpensive and can be purchased at most major hardware stores. I replaced the thermocouple. Some other reasons. When the water heater pilot light goes out, first try relighting it, following the directions on the water heater label. Last night I replaced the thermocouple (TC), cleaned the screen, hooked it up and it still would not light. Can someone recommend the next best course of action to keep my pilot lit? Reopen the shutoff valve. Is binomial(n, p) family be both full and curved as n fixed? Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. If the pilot flame in your water heater keeps on going out or won't stay lit, then it could be a problem with the thermopile or thermal cutoff switch. If a water heater pilot won't light at all, the thermocouple probably isn't the problem. Pilot in gas water heater still goes out after replacing thermocouple, Gas fireplace flame won't stay on; both flame and pilot go out. Why does my nat gas furnace pilot light stay lit at normat temp setting, but goes out when I bump the temp up a couple degrees? I've used this furnace for over 15 years without replacing the thermocouple. I would see if you can hear the valve actuating if you can there may be some rust, moisture or even flakes of pipe dope that is preventing it from working. A faulty thermocouple or malfunction of the gas valve could be the culprit, but the problem may be as simple as a draft coming from a crack in the wall or under the door. The No. There seems to be a secondary thermocouple-type wire running alongside the thermocouple and pilot gas line, though I ensured the thermocouple is not in contact with anything else. How is HTTPS protected against MITM attacks by other countries? Why Water Heater Pilot Light Won’t Stay Lit After Replacing Thermocouple? All went well and it lit and fired the burner. Can I use a Honeywell thermocouple in a State water heater? This is the one thing that's worked AMAZING to get my hot water heater pilot light to stay on! How to sort and extract a list containing products. A Dirty Thermocouple. As far as I can tell, the gas valve gets information only from the burner thermocouple and from the thermostat. In some cases, it could also be an indicator of potential gas buildup. Water Heater Pilot Light Keeps Going Out? If the pilot flame in your water heater keeps on going out or won't stay lit, then it could be a problem with the thermopile or thermal cutoff ... No hot water? A water heater pilot light that won't stay on or keeps going out is super frustrating. A bad thermocouple will shut off gas to both the pilot and the burner, which is when people notice that the water heater pilot light is out. Is it possible it's just the thermocouple? I really appreciate your response. Sometimes it's referred to as the "flame sensor." The pilot in my gas water heater (Aquamax 205) has been going out sporadically over the last 2 weeks. Having to relight it almost daily. Turn the control valve to “on”. Learn about the basic operation, safety features and the differences between conventional and electronic gas valves in this video: https://youtu.be/BHUPFLbb8NY___________________________00:00 Intro00:54 How it Works02:01 Initial Checks02:43 Integrated Voltage Test04:09 Isolated Voltage Test04:40 Thermal Switch Continuity Test05:56 Airflow Issues___________________________AMRE Supply provides homeowners, service contractors, and property management with the parts and knowledge needed to get the best performance out of any property. The thermocouple has been damaged. I turn on the main burner and sometimes it'll stay on for a day or two and sometimes it shuts off after about a minute. Now I can't get the pilot to stay lit at all. The procedure for lighting a standing pilot always includes lighting the flame, then manually holding in the gas valve to keep the flame burning and give the thermocouple time to heat up. Ask Your Own Appliance Question. If you have a gas water heater with a pilot light that won’t stay lit, it’s probably due to a failed thermocouple. One week later, the pilot would light but go out when button released. For more information about life expectancy, read this article entitled how long do water heaters last? rev 2020.12.18.38240, The best answers are voted up and rise to the top, Home Improvement Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us, Seems this model was made between 1967 and 1969. Since the thermocouple directly allows the pilot light to get turned on it is most likely to remain on for a while. Does a thermocouple need to be screwed in to work? A broken or damaged thermocouple needs not to shout that it is the reason why your gas water heater burner won’t stay lit. So if a pilot light won’t stay lit, you’ll want to find out what’s causing the problem right away. I've held the button down for over the recommended 60 seconds. my pilot light won't stay lit. If their is a good flame on the thermocouple then it is a bad gas valve. If the water heater pilot light won't stay lit after replacing thermocouple, the chances are that it may be broken. my pilot light won't stay lit. Thanks for contributing an answer to Home Improvement Stack Exchange! Show Less. The No. I suspected the thermocouple and replaced it, but this didn't fix the problem. First try relighting the pilot following the directions pasted on the tank. If the thermocouple is dirty, then the electric current it receives from the pilot may be obstructed, leading to a gas outage. This means it can be a nightmare when your water heater pilot light won’t stay lit. The thermocouple is the copper rod the pilot flame directly hits. To fix this, simply locate the thermocouple and clean it with a piece of sandpaper. The gas supply to the pilot assembly is controlled by this valve. No water dripping on pilot light. If the pilot light on your water will not remain lit and you have gas flow, the thermocouple may need to be replaced. Making statements based on opinion; back them up with references or personal experience. By James Carey, Morris Carey . You’ll get your hot water going without waiting for a … If the unit is more than 10 years old it may not be worth the expense to replace the gas valve since the tank could leak at any time. Although a blocked gas line is one reason why the pilot light on a Rheem water heater won't light or stay lit, there are other reasons as well--some easier to correct than others. Category: Appliance. Yesterday, I replaced the thermocouple with a universal thermocouple and cleaned out the dust and soot from the burner area. 4. This can happen with age. The Solution: Thorough cleaning should do … Stocking the largest selection of appliance parts, heating, plumbing, lighting, and janitorial supplies, AMRE ships almost anywhere in Canada within 24 - 48 hours. If the pilot lights but the flame goes out as soon as you release the button after holding it for 60 seconds, then the thermocouple … I get a nice blue flame. When your thermocouple detects an unlit pilot, it automatically shuts off the gas to your water heater as a safety precaution. Sunday, we ran out of hot water, I checked and found one of them not lit. A complete graph on 5 vertices with coloured edges. I replaced the thermocouple yesterday and could light the pilot and the burner would ignite and heat the water then shutoff and the pilot would shut off at the same time. Share this conversation. Do you think opening up the gas lines caused this? The little shield or door over the area to light the pilot has been left open. If that does not solve the problem, then the whole valve needs to be replaced. The gas water heater has ventilation interlock switches. Whenever the thermocouple detects an unlit pilot, it turns off the gas as a safety precaution. The flame will go out if the tube is clogged with dirt or debris. A clicking sound,, years old and was likely installed in thermocouple... Reasons for such © 2021 Stack Exchange one from another tank and it would not stay.!, when I release the button it just goes out you can do yourself gap lighting the pilot n't! Hold a flame tubing that runs from the thermostat all of a sudden become! 205 ) has been going out is super frustrating in to work thermocouple then it is more dangerous to a. This article water heater pilot light won't stay lit after replacing thermocouple how long do water heaters -- both new from Lowe in... 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