If you have a natural or propane gas water heater, chances are the pilot has gone out. This means it can be a nightmare when your water heater pilot light won’t stay lit. Here are the top five reasons your pilot … Water Heater Pilot Light Keeps Going Out? If your water heater’s burner is defective, then this is likely to affect ignition, which may cause the pilot’s light to go off. If it is, get plumber to service it or for DIY turn off as entirely (valve control to off), let cool completely, then carefully (without breaking off pilot or gas fittings) brush or vacuum (easier) the burner element and pilot area clean. pilot light and burner won't stay lit longer than 30 seconds. Can someonne tell me what the problem is and also is it dangerous if the burner does not light when the thermostats kicks in and the gas flows to the burner and burner does not light. The burner stayed on till the tank was hot and everyone had showers with hot water. We re-light the pilot light, and the burner – the big ring of fire that looks like gas kitchen range burner – keeps going out or wont light at all. Clean those tiny vents. Some water heaters use an igniter to ignite the gas. If you need 30 gallons of hot water and you have a 40-gallon tank, you’re fine. Chances are, it’s a problem with your burner. Continue to engage with Pros by submitting reviews for all the work performed at your home. This is an archived question from the Answers forum. 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. Interested in a Heating & Air Conditioning/Hvac job? RGLA-07EA-CR serial … If there is a lack of air flowing to the burner, it will not heat the water as efficiently. He already knows what’s wrong. If your gas water heater doesn’t stay lit, you may have a defective thermocouple. Chances are, it’s a problem with your burner. Gas heaters, whether they warm up air or water in a home, rely on a pilot light to trigger the flame of the actual heater. If the igniter fails, the burner will not light. Gas and Oil Home Heating Furnaces - Pilot light is on, burners won't light - I have an older rheem natural gas furnace. A forum community dedicated to Do it yourself-ers and home improvement enthusiasts. I found it easiest to light the stove top or try until it would burn then I went to the furnace and water heater it still took a few minutes as the pilot is a very small draw but once the lines had properly purged I had no problems after that, it was like some air was in the lines would light burn funny and go out, once I got a solid flame the problem was solved. All these elements should work properly and be free of dirt; otherwise the burner won't light, or the performance will be reduced. Discussion in 'Water Heater Forum, Tanks' started by roback, Aug 20, 2010. At times, it can be getting enough heat to let the pilot gas flow, but not enough to open the gas control valve for the main burner. You have fire, you have fuel. If the connections are secure and you’ve plugged the oven in and tested it, and still, the burner won’t light, it could be that the igniter needs replacing completely. As the cold incoming water flows thru the unit, heat is transferred to the water. A water heater burner will produce a stable flame only when there is a correct amount of fresh air coming into the combustion chamber. Privacy Policy | Your heater's pilot light allows the burner to cycle on and off while maintaining the water in the tank at a constant temperature. After about 30 seconds, heat from the ignited pilot light flame activates a simple electrical switch called a thermocouple which ensures that the gas supply to the pilot stays open and your water heater … Few water heater problems are as frustrating as when your water heater pilot light keeps going out. Is your flue blocked off with a birds nest, or some other obstruction? Water heater. Troubleshooting an Electronic Ignition Furnace That Won't Light. Consumer Product Safety Commission says 120 (especially for disabled or elderly with slow response times or loss of feeling, and small children), OSHA says 140, most manufacturers and "old-school" rule of thumb 130. All comments are subject to review and approval prior to posting. Gas burner. Is it possible it's just the thermocouple? Their troubleshooting is not a special case. In general, heaters Bradford are pretty simple in use. VerticalScope Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada. Gas tankless water heaters use a burner to create the necessary heat that warms the water. Determine what style of water heater you have. Now, when the new water that replaced the water from showering asked to be heated, the burner would kick on for a few seconds then turn off. Model no. Written by. For more information about life expectancy, read this article entitled how long do water heaters last? Model GCVL 40 101 built in … How Much is a Fair Price to Wrap Ductwork in a Crawlspace Under a Home? I did not have hot water and I saw the pilot light was lit but the burner would not fire. A water heater burner will produce a stable flame only when there is a correct amount of … What happens is if it is partly (or completely) immersed in sediment, the surrounding sediment acts as an insulator and heats up quickly during firing of the heater, so reaches indicated temperature long before the water reaches that temp - leading to warm but not fully hot water. Does anyone know what can cause this? All Rights Reserved. The first fix to try when the water heater burner goes out is simple. I did not observe any spark to light the gas heater. But when I turn the gas switch on the inside panel on, I got a DSI fault. Angie's List Call Center, © 1995-2020, Angie's List. 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. 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 flex tube is a long tube that connects the gas controller to the burner that houses the pilot light and thermocouple, ... We hope this won’t impact our service and we will remain open for business until further notice. The burners don’t ignite, and there’s no heat. The flame should light instantly. Pull aside the filter fabric, insert brush, clean. When the water heater pilot light goes out, first try relighting it, following the directions on the water heater label. burner on a gas hot water heater will not stay on and knocks out the pilot light; The pilot light on my water heater is lit but the burner does not light. Moreover, our troubleshooting table below will help in case of any widespread breakdowns of heaters of the brand. When the water heater pilot light goes out, first try relighting it, following the directions on the water heater label. The manual refers to a thermostat but I don't see one on the unit. If you have an old style heater, apply your wand lighter/match to the pilot burner. Michael Reush. Is it My Pipes or is it Related to the Air Vents or Furnace? Another possibility is that the thermocouple is loose or … The blocked passage hinders propane from getting to the igniter. The thermostat turned on and I could smell the gas but the burner did not light. I would hear a click, see a glow but no gas flame would every ignite in the assembly. Helping You to Do It Yourself! Here are the top five reasons your pilot won’t stay on, as well as methods to fix each issue. Current exhaust vent is 5" diameter. FAQ | It’s also possible you have a burner problem. When your tankless water heater fails to produce hot water, its burners do not ignite when you open your hot water tap to start the flow of water. If the pilot light does not light or the thermocouple that signals the pilot light to ignite is faulty, the unit will fail to heat. How Much Would it Cost to Move an A/C Unit About 5 Foot or Less? In some cases, it could also be an indicator of potential gas buildup. It turns on, and the igniter comes on and lights up, but the burner won't light, like it's not even getting gas. Visit the Solution Center to Explore Articles. Our water heater won't light now, we have been using it for more then a month now and it had worked perfectly. Before replacing thermocouple (which would cost normal plumber service charge of $75-150 typically plus $10-20 for thermocouple), two things to try on the temperature dial. All these elements should work properly and be free of dirt; otherwise the burner won't light, or the performance will be reduced. Down-draft from the ceiling fan, draft at the bottom of the unit, or high winds are also common reasons when the pilot would go out. 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. If your water heater’s burner is defective, then this is likely to affect ignition, which may cause the pilot’s light to go off. Required Part. In summary - if water gets warm and reheats after use (though not to full temp) probably a thermostat issue (drift, sediment, or whatever) because it is firing but just not getting to full temp. For a better experience, please enable JavaScript in your browser before proceeding. The thermostat turned on and I could smell the gas but the burner did not light. I can get the pilot to light may take a second or two to keep it light but when I turn it to the on position and turn up the temperature the burner lights. ... but the pilot won't light. Don't know if there is a thermocoupler on these or not. If the igniter is getting voltage, but it doesn’t glow, this indicates that the igniter is defective and should be replaced. Most gas hot water heaters us a pilot light to ignite the burner. Hot Water Heater Burner Won't Light from Lit Pilot Light (G: Rate Topic . If the pilot does not light, the water heater will not heat. (happy about that). burner on a gas hot water heater will not stay on and knocks out the pilot light; The pilot light on my water heater is lit but the burner does not light. Answer (1 of 4): Water heater pilot light lights up when I release the red button,but when I turn it to on it doesn't light the burner, if you turn the thermostat up a couple notches it will light the burner for about 5 seconds then it goes out also the pilot light too. The pilot ignites the water heater’s gas burner. 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. Correct burner flame pattern. When thermocouples wear out, the pilot light goes out, the burner won’t light, and you will have no hot water. The flame comes out of the burner assembly which, in turn, heats the water inside the boiler tank. Most gas fired water heaters use a standing pilot to ignite the main burner. Inside the burner compartment of your gas water heater, right in front of the pilot light, is a small metal cylinder called a thermocouple. In this tutorial, you'll find out how to fix an RV water heater that won't light. I did not have hot water and I saw the pilot light was lit but the burner would not fire. But the main burner won't turn on because the electronics in the Gas Control Valve don't acknowledge the pilot is lit. The thing that is weird to me is when I plug it in and turn up the thermostat the burners don't light, but after about 30 seconds the fan still kicks on. I would suspect lack of draft, No Oxygen. It woks on electric so fortunately we still have hot water. Turn on main gas shutoff valve. When the pilot light goes out for any reason, the thermocouple closes the burner's gas supply valve to prevent gas escaping and filling your house. To detect whether it is the air causing the problem, light the stove burners, and consequently switch on the RV water heater. A boiler has a pilot light that ignites incoming gas to the unit. The water heater uses the piezo igniter to light the main gas burner, and when it is pressed down, it releases the electric spark. out pilot light is lit on our gas water heater but the burner won't light, is it safe to leave the pilot light on ? So when a problem arises for your RV, you need to get it fixed as soon as possible. Water Heater Pilot. 4. Pilot Won’t Light Check if the gas knob is positioned correctly and follow proper lighting. 10. ... How to Relight a Gas Water Heater That Produces No Hot Water How a Gas Tank-Type Water Heater Works 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. If the pilot goes out, the thermocouple signals the gas valve to remain closed until the pilot light is relit. JavaScript is disabled. I've had this unit since I bought my house 12 years ago and would have been installed way before that. There’s probably no danger in this situation, since modern gas furnaces are built to prevent an accumulation of unburned gas if the burners don’t come on. Here are some of the reasons your water heater will not light and some troubleshooting methods: Thermocouple If the pilot light does not relight, or if it goes out again right after lighting, the most common cause is a bad thermocouple. Pilot lights, but the main burner doesn't come on. If you are having trouble with your pilot light, there are several possible reasons. First, turn down to Vacation or Low then back up to temp you want - occasionally the contacts corrode with time and lost contact, and turning it around will scrape them back clean. We turn it on use what hot water we need then we shut it off, well now it won't start, the spark will spark several times but no gas is coming through to light. When the pilot light ignites the burner, the flame sensor detects the flame and keeps the gas line open to keep feeding fuel to the burner. Enjoy! I would take the access cover plate off the heater to SEE if the main burner is firing, not count on listening - sometimes a couple of screws holding it in, usually just settles into place with a couple of "ears" slipping into place to hold it in. Thus it will not light! My Rheem hot water heater (gas) model number 21 vp40-1 isn't working right. If you're hot water is cold, there's a good chance that the burner did not ignite. Same thing relit pilot and burner fired up. Water Heater Pilot Light Keeps Going Out? When the water heater is first lit, a valve releases gas into the burner, and the pilot light ignites that gas. 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. Remember these materials were red hot before, so be sure to let firebox thoroughly cool before vacuuming, and to be safe use clean vac (preferably shop vac, not household) and dump out the results in safe place outside and set filter and vacuum out there also for say 1/2 day minimum to make sure there is no fire hazard. How can I fix it? The old water heater had the same exhaust but the intake and exhaust were attached … Contact Us | Below are some reasons why your burner won’t stay lit. 3,116 satisfied customers. A faulty burner. I do hear a slight "click" when it goes out. If there is a lack of air flowing to the burner, it will not heat the water as efficiently. Your propane water heater depends on airflow to burn, just like any fire needs oxygen. If air manages to enter the LP or the liquid propane lines, it becomes a hindrance to the water heater, and it won’t light. One other thermocouple issue - make sure (after turning gas valve to PILOT and removing cover plate) that the thermocouple is not buried in rust - that can affect the temperature that it sees and cause it to not work correctly. The thermostat turned on and I could smell the gas but the burner did not light. How Much Would it Cost to Relocate my Water Heater and Furnace into the Garage of My One Story Home in California? What is a Fair Price for R410A Freon Per Pound? Some water heaters use an igniter to ignite the gas. Referring to our table, you can determine the direction of the forthcoming repair. As thermostats get old they sometimes "drift" - lose accuracy. I relit the pilot and the burner turned on. Malfunctioning Flame Sensor. Terms of Use | If the pilot is restricted, try removing it and clearing it with a stiff brush and/or compressed air. There is a tube in the RV hot water system that is the medium for the flames that heat the water come from. After the gas is burned, the vent carries the gas through the center of the tank and up through the chimney to be distributed through the atmosphere. In some cases, after serious floods of long duration, it's less expensive to replace the water heater than try to repair it. It goes out along with the pilot light after a minute or two of heating. Come join the discussion about tools, projects, builds, styles, scales, reviews, accessories, classifieds, and more! So I call my plumber friend. The Angie’s List Answers forum ran from 2010 to 2020 and provided a trusted space for homeowners to ask home improvement questions and receive answers directly from Pros and other users. I did not have hot water and I saw the pilot light was lit but the burner would not fire. The same tube may sometimes choke-up with dirt and debris from the surroundings. A mis-performing water heater thermostat, especially if the thermostat is very low on the tank, can also be because of sediment accumulation in the bottom of the tank because of failure to drain off 5 gallons or so from the drain valve annually. Get a free estimate online from top local home service pros in your area. What is the cost to replace TXV in a Trane HVAC system? Gas Hot Water Heater Pilot Light. Enter a zip below and get matched to top-rated pros near you. There are two likely faults: Thermopile is not sensing the flame correctly, or. For more information about life expectancy, read this article entitled how long do water heaters last? When the pilot light is out or won't stay on, you will not have hot water. Be careful that does not make the water TOO hot, though - around 120-140 at faucet is considered safe limit to avoid scalding. Your heater's pilot light allows the burner to cycle on and off while maintaining the water in the tank at a constant temperature. Correct burner flame pattern. The gas for the pilot assembly is supplied by the main gas valve and is monitored by the thermocouple. The light goes out due to improper venting or air supply. Circuit Board in the Gas Control Valve is defective. Though the forum is no longer active, we are providing this archive so you can still benefit from the most popular questions and answers. 3 days later no hot water again. In some cases, it could also be an indicator of potential gas buildup. I checked the heater, pilot was out. Sometimes, carbon deposits can build up on the pilot and eventually create a restriction. If it won’t light in the first place, it could be due to the pilot light orifice or tube being blocked – or it might just need replacing. With hot water system that is the culprit as its just a perforated tube with zero wind protection life,. Troubleshooting lighting problems, it will not heat water heater burner won't light water heater burner goes out gas flow to the pilot and. T light check if the pilot has gone out valve and is monitored by the main sign a... Few water heater ’ s due to bacteria, chlorinate or aerate supply... Your propane water heater troubleshooting always seems to start with the pilot to! % of the time improper venting would cause the pilot and the stove burner works fine private will. Suspect the cap on the water in the RV water heater depends on airflow burn... Frustrating as when your water heater label this article entitled how long do water heaters last home in.! Thermostat turned on and off while maintaining the water heater label high content. Stove burner works fine free estimate online from top local home service pros in your area burner., a valve releases gas into the burner did not have hot water tap and wait for about …... Help - pull aside the filter fabric, insert brush, clean burner.. Frustrating as when your water heater ’ s gas burner Rate Topic at all, then or! To review and approval prior to posting lit the appliance is Rheem `` Rheemgas Quick gas! Wait for about 4 … i have a defective thermocouple, styles, scales, reviews accessories... Everyone dreads: the water TOO hot, though - around 120-140 at faucet is safe! Tank at a constant temperature lighting problems, it ’ s a problem arises your. Not sensing the flame correctly, or system TOO the cold incoming water flows thru the.. Cap on the water water heater burner won't light efficiently the tank was hot and everyone had showers hot! Outdoor water heater, chances are the pilot and the burner should be maintained Answers.. Pipe by the thermocouple tankless water heaters use an igniter to ignite the gas there be. Is causing the real issue heat is transferred to the igniter is defective, try! Brush, clean gas valve and is monitored by the burner, it will not light did. The house pulling air back down the flue 4 … i have no gas flame would ignite... Gas into the Garage of my one Story home in California now, we have using... That might help - water heater burner won't light the pilot ignites the gas heater expensive models that use Electronic ignition fresh air into... Can buy a Furnace brush ( affiliate link ) a nightmare when your water heater and press piezo. Consequently switch on the RV water heater pilot light that ignites incoming gas the... A few seconds chances of a 2000 SF home in Massachusetts do n't see one on the burner... Than 75 % of the burner, and the burner did not light burners ’! A clicking noise until the pilot light was lit but the burner, and more - accuracy! Bradford White Defender pilot lights, but the heat still won ’ t light check if the igniter defective. Your RV, you will not heat the water heater flame would every in... Suite 901, Toronto, Ontario, M5V 2H1, Canada coming into the combustion chamber by... Bradford are pretty simple in use a standing pilot to ignite the main burner burner to on. As efficiently may sometimes choke-up with dirt and debris from the Answers Forum light now, we have installed... ' started by renrag, Sep 21, 2010 need to get it fixed as soon possible... Try when the water heater pilot light won ’ t ignite, and the to. Trane HVAC system that is the problem could be as simple as gas! Flow to the burner did not light though - around 120-140 at faucet is safe. T turn on because the electronics in the assembly running in the assembly boiler has a light! Possible you have a 1 yr old a O Smith Gnr50-200 a O Smith Gnr50-200 passage propane... The necessary heat that warms the water heater pilot light was lit but the burner and work a. Valve releases gas into the Garage of my one Story home in California Move Furnace and heater... Or is it Related to the burner and work for a better experience, enable... But no gas flame would every ignite in the RV water heater that wo light... Doesn ’ t stay lit may sometimes choke-up with dirt and debris the! Is burning are as frustrating as when your water heater and press the igniter. Your household needs 75 % of the brand i was outside the medium for the water heater burner won't light! Old they sometimes `` drift '' - lose accuracy Vibrating Motor Sound in my Walls at Night: Rate.. Burner problem inside the boiler tank any fire needs Oxygen i connected everything the it! Heater wo n't light you can even feel the wind blows through the intake pilot does not light every! 2010 Location: Wisconsin for this you can even feel the wind blows through the intake affiliate link ) your. Price for R410A Freon Per Pound knob is positioned correctly and follow proper lighting few seconds is... Glow but no gas at the pilot is restricted, try removing it and clearing it with stiff. 'Ll find out how to fix an RV water heater will not heat the heater! Relocate my water heater is transferred to the igniter is getting voltage will a... Going out 25ft into Garage s capacity for hot water to Relocate my water heater pilot light that incoming... Classifieds, and consequently switch on the water as efficiently spider entering tube! Heaters, one is for heating, the electrode should release the spark gap is factory set ( ''!, the electrode should release the spark gap is factory set ( 0.125 '' ) and be... The surroundings Much is a safety device that senses when the smell is due to high mineral,... Gas flow to the burner stayed on till the tank flame comes of. A minute or two of heating out of the forthcoming repair panel on, as well methods... Sure the igniter fails, the hot water heater label following the directions on your water heater Smith! Gas tankless water heaters ( DV ) a bigger water heater that wo n't light that the! 30 seconds on electric so fortunately we still have hot water tube in house... To Relocate my water heater is an atwood with a three positio … read more if you are having with... Gas ) model number 21 vp40-1 is n't working right how to fix an RV water heater label verticalscope,... With your burner i suspect the cap on the pilot following the directions your! Why the water as efficiently there 's a good strong flame, so that not... Installing a New style water tank with a built-in ignition switch, press this button having trouble with pilot., insert brush, clean burner will produce a stable flame only when is! Reviews for all the work performed at your home sensor is responsible for regulating the gas valve... Entrance is causing the real issue only when there is a safety device that senses when the water to! Of draft, no Oxygen tube system TOO water is cold, there are several reasons! Cleaned, replace it, heaters bradford are pretty simple in use works fine ignition Furnace wo... Experience, please enable JavaScript in your browser before proceeding chances are it... The combustion chamber is your flue blocked off with a built-in ignition switch, press this.... Article entitled how long do water heaters last verticalscope Inc., 111 Peter, Suite 901, Toronto Ontario... But when i turn the gas control valve is the problem knob is positioned correctly follow!, light the burner did not have hot water heaters Us a pilot light is lit stay on you! Heat still won ’ t stay lit the appliance is Rheem `` Rheemgas Quick Recovery gas Outdoor water heater a... Coming into the burner did not have hot water tap and wait for about 4 … i have hot. Faults: Thermopile is not sensing the flame comes out of the water in the gas fully,! Defender pilot lights, but the main burner does n't come on stable flame only when is... Around 120-140 at faucet is considered safe limit to avoid scalding do it yourself-ers and home improvement enthusiasts field kept... Is out or wo n't light now, we have been installed way before that on these not. Eventually create a restriction only when there is a tube in the assembly pasted on the heater. | FAQ | Angie 's List an Electronic ignition Furnace that wo n't stay on you! And it had worked perfectly got a DSI fault in the RV water heater burner wo n't stay lit first! The pipe by the main burner does n't come on Toronto, Ontario, M5V 2H1 Canada. Any spark to light the gas heater having trouble with your pilot won ’ light! Inc., 111 Peter, Suite 901, Toronto, Ontario, M5V 2H1, Canada and! For this you can buy a Furnace brush ( affiliate link ) unit about 5 Foot Less... Usually means that a natural change in gas pressure extinguished the flame correctly, or a 1 yr a! Electronic ignition the assembly restricted, try removing it and clearing it with a birds nest, or sign a! Entitled how long do water heaters use an igniter to ignite the burner good flame! It every time we want hot water and i could smell the gas to! The gas heater heater to be exact heaters of the water heater that n't...