This website uses cookies to improve your experience. Necessary cookies are absolutely essential for the website to function properly. After installation, I also did the detergent test to make sure the gas connections are secure and not leaking. We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. If its the water heater you have to re-light the pilot and then wait for the water heater to heat the water. Some of the principal reasons due to which the light of the water heater goes out to include: Problem with a Thermocouple. If you have a natural or propane gas water heater, chances are the pilot has gone out. If the thermocouple isn't lined up correctly, it won't read the flame, and will shut the valve for the gas. There could be nothing wrong on your end. I have a Bradford White gas hot water heater and the pilot lite will not stay lit. Under constant exposure to a hot flame, a thermocouple wears down over time. by High Performance HVAC | Gas Furnaces | 0 comments. If it is a continuous problem, then further troubleshooting by an HVAC technician needs to occur. After a while, the gas could collect in your home and becom… Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. If your furnace is still malfunctioning after you’ve repaired or replaced the thermocouple and determined the flow of gas isn’t a problem, you’ll need the aid of an experienced professional to figure out what’s wrong with your furnace. We have another page here at High Performance HVAC to help you test the thermocouple if you want to do it yourself. Someone slamming a door too hard can create a draft that will extinguish the pilot light. The pilot orifice may be full of dirt. Thermocouples work by producing a small amount of voltage when it is heated. It is frustrating to have to continually re-light the pilot light so you can get hot water or heat. In these systems, the pilot will only light (in the case of hot surface igniters, the igniter surface heats) when the thermostat makes a command for heat. When a … It won't cost you much. Sometimes it occurred when a door was opened and other times not. Required fields are marked *. Those problems will cause your pilot light to go out intermittently or extinguish it altogether. We can get it to light and it will stay lit for a day or two then it goes out. This website uses cookies to improve your experience while you navigate through the website. So if a pilot light won’t stay lit, you’ll want to find out what’s causing the problem right away. Again, make sure the pilot nozzle and pilot tubing are clean and free of debris before doing so. Sometimes it lasts a couple days, sometimes just a couple minutes. That’s important because gas is always being supplied to the pilot to keep the flame lit. A gas valve that uses a thermocouple needs the voltage from the thermocouple to keep the valve open providing gas to the pilot flame. You can get injured if you don’t do this, so, take precautions. If the pilot light goes out, it doesn’t warm the thermocouple, which then shuts to prevent unused gas from building up. For more information about life expectancy, read this article entitled how long do water heaters last? If you notice pilot problems in several of your household appliances, this may be the culprit. The number one reason why the pilot light keeps going out is the thermocouple. The water heater is relatively new in age. If the pilot light goes out periodically, it’s usually not a cause for concern. That small characteristic blue flame is essential for a gas water heater to work. Hot Point Heating and Air Conditioning offers flat rate pricing on all of our Wisconsin repairs, meaning we charge exactly what we quote and don’t stray from it. Standing pilot lights are common in older furnaces, but many newer furnaces have intermittent pilot lights or hot … But if the pilot flame goes out, then the gas would still be released. I can re-lit and heater works for a few days to a week or so. If your pilot doesn’t re-light, won’t stay lit or keeps going out after a short time, you most likely have an issue with the hot water heater thermocouple. If you want to research other possibilities about converting to electronic ignition see our resources below. If it isn’t working properly or the water heater reading is not accurate, it might be time to clean the thermocouple on the water heater. The thermocouple safeguards against a catastrophic buildup of gas. Water Heater Pilot Light Keeps Going Out? Hot Network Questions Does this op-amp circuit have a name? This is a safety feature to ensure the main burners have an ignition source. Before conceding the cost of emergency repairs and calling an HVAC professional, read ahead for some of the most common reasons why your furnace pilot light won’t stay on. Cleaning out the pilot orifice means disassembling the pilot and clearing out the debris using a needle or compressed air. This is the thermocouple. Do-it-yourself maintenance and repairs can only go so far, unfortunately. Contact your utility company immediately. The pilotlight is the main indicator of the condition of the thermocouple. Make sure to follow the directions on your water heater label. Gas Heating Troubleshooting and Repair Index, Drafts and High Winds | Why Does My Pilot Light Keep Going Out, Conclusion | Why Does My Pilot Light Keep Going Out, Top Ten Reasons the Pilot Light Won’t Stay Lit Video, conversion from standing pilot to electronic ignition, Changing a Standing Pilot Boiler to Electronic Ignition – Conversion Upgrade, Electronic Ignition Systems: Hot Surface Igniter, Honeywell Furnace Temperature Fan Limit Control, How to Test a Thermocouple with a Multi-Meter, Lighting a Pilot that is Electronic Ignition, Natural Gas Properties and Furnace Heating Efficiency, New Thermostat Problem or Gas Furnace Issue, When the wind is high like in the fall time. Because the pilot is not keeping the thermo couple hot, after the burner shuts off the safety kicks in and cuts off the pilot. If you feel uncomfortable doing any of the things noted here call and HVAC service company or a plumber. The same for a furnace. Posted by 8 years ago. The pilot light creates a small flame that is used to ignite the burner that then warms up water in the tank water heater. Locate the copper rod near the burners. This can happen on excessively windy days or nights. You awake on a cold winter morning and cast the covers aside. Call today to schedule your appointment at (972)-263-5010. If all those things above with the thermocouple are done and the pilot still will not light then the gas valve is the problem. When I light the burners it will stay on and heat the water but then all of sudden 5 minutes or so in cut off and when it cuts off so does the pilot light. Before purchasing a new thermocouple a check of the gas line to the pilot assembly should be done. There are a few main reasons why this occurs, and we will describe them here. Hot Point furnace repair experts guarantee integral and trustworthy repair services. Even the slightest hiccup in gas supply to your furnace could be enough for the pilot to go out. In an effort of full disclosure, we do have affiliate links on our webpages. You also have the option to opt-out of these cookies. You have to light the pilot light and then wait for the furnace to heat the home to a comfortable temperature. Thermocouples work by producing a small amount of voltage when it is heated. In the “not” cases, the wind was coming down the flue or chimney. Therefore, a dirty thermocouple might be the reason why your water pilot keeps going out. Providing Heating, Air Conditioning, and Water Heater Services for. A bad regulator in your natural gas meter outside your home will affect all of the gas appliances in your home, including your furnace, dryer, stove, etc. It is crucial, for troubleshooting purposes, to make a note of conditions outside and when the problem occurs. If the pilot valve (inside the gas valve) is not open then the main valve will not open. If the water heater or furnace is in a garage, then it may be necessary to make observations as to when the pilot light is going out. One of them is a dirty thermocouple. No hot water on a cold Monday morning. Dirty Thermocouple. If you're having trouble locating the pilot or thermocouple, double-check to make sure your unit actually has a standing pilot light. More importantly it is the device that regulates the gas flow inside your water heater or furnace. 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. 1. Why Does Your Heater’s Pilot Light Keep Going Off? We'll assume you're ok with this, but you can opt-out if you wish. That's the thermocouple. A weaker flame won’t envelop the thermocouple properly. Thanks and happy heating!! When the water heater is first lit, a valve releases gas into the burner, and the pilot light ignites that gas. While there could be a number of issues with your water heater, the most consistent one (for gas water heaters) is a pilot light that keeps going out. When natural gas consumption peaks, the “gas grid” in your area may be nearing its capacity and lower the gas pressure intermittently. Without this safety feature it would be possible to release a large volume of combustible gas. This will cause the coil to close the pilot valve preventing gas from getting to the pilot nozzle. If you can light your pilot light, but it keeps going out, the first item to check is the thermocouple. Archived. But the pilot light going out is not an uncommon problem. Keep every intake air register in your home open and clear to avoid a “vacuum” effect in the inlet. The simple definition is that it is a device that measures temperature. This commission helps us pay for the overhead of running this website. When the pilot light lights, it heats the thermocouple which will, in turn, generate electrical current. This is the pilot flame that provides the heat. Here are reasons why your pilot light on the water heater keeps going out. If this thermocouple noticed that the light of the pilot has gone out, this thermocouple shuts off the supply of gas towards the flame to prevent out the negative consequences. The only thing more frustrating than a busted furnace is the hundred trips to the garage for tools when you're trying to fix it. 0. Locate the pilot light and look for the tip of a copper rod very nearby. This is DIY furnace maintenance you can perform on your own to extend the life of your furnace and avoid emergency repairs. The pilot light flame going out means that the burners won’t ignite, and you’ll suffer the wrath of freezing, cold water. If the thermocouple fails to shut off the gas, all the gas flowing through the furnace could get into your home. Soot buildup on the thermocouple may block the flame. Ok so, my water heater has a new thermocouple (actually a new pilot assembly) on it that is working but I’m still having issues.. It could be moisture, or it could be a power surge of some kind. These cookies will be stored in your browser only with your consent. The pilot in my gas water heater (Aquamax 205) has been going out sporadically over the last 2 weeks. If you're having trouble locating the pilot or thermocouple, double-check to make sure your unit actually has a standing pilot light. We want to help you find the solution to your problem because we know it can cause discomfort. Locate the pilot light and look for the tip of a copper rod very nearby. Standing pilot lights are common in older furnaces, but many newer furnaces have intermittent pilot lights or hot surface igniters. Your furnace may not be getting enough gas to keep the pilot lit. There are three reasons why your thermocouple might be malfunctioning: A broken or burned out thermocouple won't detect the flame properly, effectively closing the gas valve until you replace it. As a result, the gas supply will be cut off and the pilot light will go out. AO Smith Water heater - pilot randomly going out Nevermind that the click starter does not work, but to get around that, I manually lit the pilot, and everything was fine, but some time in the following hour, the system shut off, and the pilot was out. Even a slight residue can make the thermocouple malfunction. Sometimes it's referred to as the "flame sensor." Most recently manufactured water heaters function with the aid of a thermocouple. Get in touch with your utility company if the problems persist. Thus the safety pilot. What is a thermocouple? It is mandatory to procure user consent prior to running these cookies on your website. The following are things you need to do to bring it back to top shape. Now the pilot lite will not stay lit. Can't Find the Pilot Light? A faulty thermocouple can cause problems with your water heater not staying lit. Yesterday, I replaced the thermocouple with a universal thermocouple and cleaned out the dust and soot from the burner area. Is there parts we can replace so that we do not have to purchase a new water heater? Is the wind blowing hard outside? Most plumbers deal with thermocouples and gas valves and can quickly and efficiently take care of the problem for you. Pilot light won't stay on? Read on for reasons why, and what you can do to fix it. The high wind caused a draft that extinguished the pilot flame. Here are more than a few things you can try to keep that flame going before you decide to give your local Ace Hi water heater technician a call. 1. A layer of dirt and grime can hinder the electric current from reaching the thermocouple. The thermocouple is the copper rod the pilot flame directly hits. That allowed the byproducts of combustion to escape while keeping the wind from blowing out the pilot light. Dirty thermocouple: If you can light your pilot light, but the water heater pilot keeps going out, there are many possible causes. The water heater pilot light is a small flame that ignites the gas burner on your water heater. Whats people lookup in this blog: Maybe the pilot stays on for a moment and the furnace attempts to fire, but almost immediately shuts down. If you’re not eager to start tampering with crucial parts of your furnace system, furnace repair experts at Hot Point are just one phone call away to help you out. Entitled how long do water heaters function with the thermocouple are done and furnace. Turns the gas supply will be stored in your home 're comfortable doing, perform this maintenance. & air Conditioning LLC pilot like keeps going out sporadically over the last 2 weeks Again, make the. Times not, inspect the flame sensor, the pilot light furnace you. 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