The fan continues to run even though the flames and pilot light go out. I did what you suggested. You can learn more about these devices below, including how they work and how you might be able to fix yours so that your gas fire won't keep going out. To cure the gas fire going out, the corgi technician suggested replacing the pilot burner, ignition unit and thermocouple. This could be a dirty pilot, or a gas pressure problem. This is the most dangerous advice I have heard in a long time. thank you for helpful advice,never mind nasty comments from some quarters,I have a carbon monoxide detector in the room anyway,so am doubly protected. I have a huge propane tank and the propane just sits in the tank, because my fire places, don’t work. Different makes and models have different safety devices, however. This is nothing to worry about as it is the heat exchanger heating up intermittently so it is ready to produce your hot water on demand. Hereford • Member since 22 Jan 2010 • 22 jobs, 95% positive feedback. If the flame comes on and then goes out in a short time, that is classic symptom of a flame sensor or a bad ground for the control board. Hiring a CORGI engineer to service the fire involves removing the gas fire and checking the chimney with a smoke pellet. If air doesn’t reach the burner and then open the flue that releases the heat, the flame rollout switch will shut the furnace … We use cookies to give you the best possible experience on our website. So, we called our local HVAC/boiler contractor to come fix it. Worcester boilers installed from as little as £1,770. Lack of water flow. My gas Central heating boiler ignites, runs for a few seconds and then goes out, what can I do? By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. :) thank you!! This may be caused by the pump not working correctly or the diverter valve sticking in the hot-water position. The limit switch keeps the furnace from running if the heat exchanger is too hot. I have a Potterton Suprima boiler that ignites and burns for 3 seconds then shuts off, I had a spare pcb as they go but - Answered by a verified Plumber . I have a Dunkirk gas fired boiler Model PWX 3ENT2 installed 4-5 years ago the problem is when it goes to ignite the burner it lights for a second or two then goes out it will cycle like this four five up to 10 times before it stays lit, if it does, with each unsucessful light there is flashback to varing degrees some big enough to shake the boiler. Sometimes this flame will go out, whether caused by sudden drafts or wandering spirits trying to make contact. Remember you need a CORGI registered gas installer to work on gas appliances, do not break or disconnect any gas supplies or fittings or try to change parts yourself. Maintenance & Repair. If you encounter a loud banging sound when the boiler ignites – or it simply fires up and shuts down, it could be due to the mineral fibre burner that is prone to degenerating – usually after around 5 – 7 years. Content is for informational or entertainment purposes only and does not substitute for personal counsel or professional advice in business, financial, legal, or technical matters. He came out and was frightened by what our furnace was doing. According to the owners manual, still the fire would only stay light for about 15 seconds. There is absolutely no danger in this diy fix. Feature image: Dmytro Zinkevych on Shutterstock, Anthem | Avondale | Buckeye | Cave Creek | Chandler | Fountain Hilla | Gilbert | Glendale | Mesa | Paradise Valley | Peoria | Phoenix | Queen Creek | Scottsdale | Surprise | Tempe, Your Guide to Ductless Mini-Split vs Central Air Conditioning System. Did the atraw trick today. If your heater comes on then shuts off, call in the experts at Howard Air in Phoenix . This switch keeps track of how hot the burners are. The flame lifts away from the thermocouple and causes the temperature on the tip of the thermocouple to drop. If the pilot light on your gas boiler suddenly goes out, you can take these steps to fix it: Follow the boiler instructions to re-ignite the pilot; these are usually found on the inside of your boiler panel or in the boiler manual. HiCustomerbr />It sounds like your boiler is not proving burner ignition. After I relight pilot, turn switch to on, the flame lights and begins to heat, then after about 30 seconds, there is an audible click from the valve body and the flame goes out including pilot light. I know someone who tried fixing own fire, they are dead now. This is the brain of your furnace. Just what I needed to know .... my fire is doing the same thing. Do you know how to test safety devices? Make sure there's no dust blocking this, and clean if needed. The fire keeps on going out about 30mins to an hour. Weather Replace or Repair, Call Howard Air. The pilot was quite reaching the thermo couple thermo pile. He told me to clean the sensors on the oxypilot with a dollar bill. It could be down to something as simple as the need to refill the gas/propane tank. They called several engineers but they either didn't turn up or couldn't fit them in. Variations from that symptom would be pointing to some other malfunction. GAS. I have a wall mounted insert, there are 2 screws at the top (just above the glass). The Fix: The fibre burner should be replaced with great caution, as this burner is particularly fragile. Faulty gas valve. Took me a little while to find the small hole at the base of the pilot supply pipe but blew that out with the straw and now have a very healthy pilot light reaching both the thermo couple and the thermo pile. Just installed vokera compact 25HE boiler ignites for 10 seconds then goes onto locko out, 2 days - Answered by a verified Plumber Thank you !! Big problem, right? Basically, if the oxygen percentage in a room drops, the flame shape is altered by its incomplete combustion. Deans Heating. Thanks for the information. Before attempting to locate the cause of the leak, stop the water supply and turn off the central heating. Then, place a bit of tubing or a drinking straw over each pilot hole. Your blog armed me firstly with the knowledge to understand how things ought to work and why. try to turn back knob but it locks have to turn back and forth to unlock knob by a click then start all over. Unfortunately, all three parts were obsolete. One junction is at the temperature to be measured, while the other is held at a fixed lower temperature. A faulty or blocked gas valve could also be the problem. It should be directed at heating the tip of the thermocouple. The burner ignites but then goes out before heating up your home . Thanks for sharing the information. Saved me a lot of money. If something is obstructing the flue, the pilot light can go out as the burnt gas has no way of escaping. It sounds like the heat isn't leaving the boiler, that's why it's only firing for a short period. I cleaned out my gas log fire and blew the dust out the air intake and pilot. Many many thanks!!!! First time I used the fire it went out after an hour! You saved us the cost of getting someone else out. No problem. The boiler is room sealed so you can rule out ventilation issues. An oxypilot is an atmospheric sensing device in place to put out the gas fire if there is insufficient oxygen in the room. Weather turned colder here in Tennessee,I didn't want to run the whole house heat. Knowledge is money, I am sorry if my post have affected your income. Richard Scopes December 2011: it sounds like the probe that detects the flame. I hired 4 different Companies to fix them. To ignite the gas and deliver heat and hot water, the boilers pilot light (basically a tiny internal flame) will need to be alight when your boiler is active, in order to burn the gas. I tried the straw but was unable to get a good seal. It really works! The corgi technician recommended replacing the pilot burner, ignition unit and thermocouple. When you first start the fire, keep it on the pilot light for a couple of seconds, and the fire should "kick on" when you turn the dial from the pilot light to the on position. Here are other reasons your furnace may be short-cycling. Viking Range Oven Burners Ignite then Shuts Off - Please Diagnose - YouTube If your furnace comes on then shuts off, and you don’t feel comfortable, contact us for an evaluation of the problem. Gas fire and boiler serviced in March. "it is designed as a safety device to protect you from carbon monoxide poisoning if the air in a room becomes vitiated". Direct ignition furnaces do not have a pilot light. Lack of power can be caused by a faulty PCB, an RCD unit that’s tripped or a spur socket that’s tripped. NEVER attempt to fix it yourself. After 3 times the furnace goes into lockout, and the only way to get it out of lockout is to turn the power switch off and on. My elderly parents gas fire kept cutting out. If your boiler is an all-in-one combi boiler and it is turning itself on and off every now and again, this is likely to be what is called its ‘Pre-heat’ function. Takes about 6 try's what part do i need? Thanks for the help. A tiny piece of log about the size of a seed was partially blocking the pilot. It has been working normally for the past couple of days. WHY DO YOU THINK PEOPLE LIKE ME GO TO ALL THE BOTHER OF BECOMING A GAS SAFE REGISTERED ENGINEER INVOLVING LOTS OF TRAINING AND COSTING A SMALL FORTUNE. Both the valve and pump seem to be doing their jobs, because the valve changes position depending on whether you turn on the heating or the hot water and the first radiator in the system starts to warm up before the boiler trips. As you can see from the above causes, proper air flow is necessary for a furnace to function at top form. If it is a new install chances are they forgot a "feeder pipe" to feed air for the flame. Sometimes all that is needed is a simple cleaning of the flame sensor, but it may also be worn out and need to be replaced. Looking for straws!! GAS. The furnace stays on for awhile (maybe 1 minute, maybe 10 minutes) and then goes out. The service person at the store said they coukd not send anyone to check our fireplace for at leadt 7 weeks. Boila, flame. But if this valve or its inner elements are damaged, it can’t deliver enough gas to your water heater, causing it to shut on and off. used a straw as above. Stephanie L Fosburgh on November 11, 2019: Amazing! it wont cost as much as a gas valve. This is what a thermocouple looks like (though exact shapes and sizes may vary). A leak coming from your boiler is never a good sign. To help you out, I’ve listed five of the most common boiler faults, and their fixes, so hopefully this should help you get a better idea. A furnace that starts and shuts off over and over again is often described as short cycling. #5 – No Power To The Boiler. When you try to turn your furnace on, and nothing happens, you know something is wrong. UK Plumbing. Thanks. It’s literally warming up so it can spring into action when you turn on the tap or heating. DO NOT touch the top or try to brush or clean it. I used a straw and blew through the 3 gas outlet holes in my Faber gas fireplace. View Cart. LPG. The gases will build up and extinguish the flame. Numerous visits from plumbers to no avail. Covid-19 Update. Through personal research and a DIY ethic, I managed to fix the fault in my gas fire. No power to your Worcester boiler? Any advice? This is accomplished by a flame sensor. EASY TO STOP PEOPLE LIKE YOU KILLING OTHERS. That gas is then ignited by the pilot light and the jet flames heat up a “heat exchanger”. I followed your directions & the diagram along with the straws. Run through these simple diagnostics before calling an engineer. Very helpful. There are so many reasons why a boiler pilot light can go out, which is why once electrical ignition was developed, most models moved over to this new technology. The flame lifts away from the thermocouple and causes the temperature on the tip of the thermocouple to drop. Decided to do the straw trick myself and the fire has been working perfectly ever since! Situation: You turn the thermostat up, the furnace ignites and the burner comes on. 34850. whatever the problem is, you are not legally allowed to take the cover off. Not only does your home remain uncomfortable, but the chances of the furnace not working at all are increased if the problem isn’t fixed now. It is designed as a safety device to protect you from carbon monoxide poisoning if the air in a room becomes vitiated. Thanks again! While they do a yearly maintenance check, they can also tell you if your furnace would operate better if moved. There are two gas fires in our house: one in the living room, the other in the kitchen. Photo By Globalphotogroup on Shutterstock. For optimal efficiency and safety, gas appliances should be serviced every 12 months. The burner ignites but then goes out before heating up your home . Gas from this valve lights your pilot light and eventually lights the gas burners that heat your water. Before attempting to locate the cause of the leak, stop the water supply and turn off the central heating. To reset the boiler, turn the temperature control knob fully anticlockwise. I purchased a can of 'compressed Air' on ebay - $13. Thus, it allows gas from the gas valve to the gas fire main burners only when the tip of the thermocouple stays in constant contact with the pilot flame. Sone how it worked. The instructions do not say what to do if this happens, can anyone help please? Says it all! This arcticle is a life saver. Boiler is leaking. Amazing. The pilot worked better but no sustaining flame. If your furnace is located in a place where it is unable to experience proper airflow above, below, and around it, you will have problems with the furnace operating properly. Replies: 6 Views: 1,268. joe-90 20 Jan 2013. Tried doing this and will continue to try. Great tip. Air in the system. The current generated in the circuit is proportional to the temperature difference. Blow down through the straw to clean it out. An electronic spark ignites the pilot light. This could be caused by a faulty flame sensor. After a gas furnace opens the gas valve to allow gas into the combustion chamber, the furnace control board will monitor for proper ignition of the gas. Can you test that your fire isn't spilling products of combustion into the room? 3. A leak coming from your boiler is never a good sign. All it took was for me to blow through a drinking straw over the pilot/thermocouple area to clean them out. However, when i release the gas dial, the flame goes out (and no more gas comes out). However... as a result of your post I have resuscitated the gas fire in our living room. Your furnace tries this ignition sequence again, and the same thing happens. Between the pilot supply pipe and the pilot burner, there's a brass tail or connector. Pilot light stayed on the whole time though. The fan continues to run even though the flames and pilot light go out. Thanks for the advice and all the other comments, I bought a can of the compressed air for dust. Does the pilot go out at this time as well? Heatline boiler ignites and then the flame goes out? (Sometimes you need to hold the pilot light on for longer to ignite the main fire.). LPG. Here we look at what you can do to get to the bottom of this issue and make your hot water supply more reliable. It hasn't let us down ever since. If you’ve noticed a gas smell coming from your boiler, you can check to see if the gas valve has become loose by spraying the fittings with a mixture of soap and water. I am at the end of my rope, I live in a medium side time and have called everyone of them with the Sam results. Fire place now works like new, even the sparker to ignite on the pilot light works a lot better now too. This, in turn, makes the gas valve shut off. Page 1 of 3 1 2 3 Next > dangel. Thanks. I told him about your straw trick and what do you know... my fireplace is now working!! No problem. A blocked or frozen water pipe will stop the flow of water to your boiler and can cause it to turn off. No power to your Worcester boiler? Her's stays at full power and so the boiler quickly hits its high limit and cuts out. it wont cost as much as a gas valve. This removes FUD (Fear, Uncertainty and Doubt). Will reward $100 to the person who tells me what the successful fix is - pls provide paypal email. It has been working normally for a couple of weeks now. thanks in advance. THINK ABOUT IT. i would have never thought of the straw...genius! Gas furnace ignites, then goes out within 15 seconds [ 2 Answers ] Last winter I had a hot plate igniter replaced. IF YOU KEEP ON DOING THIS ONE DAY YOU WILL FALL ASLEEP AND NEVER WAKE UP. Any ideas? Answered 18th Nov 2014 Like 6. When I turned on the mains again, our boiler, an Ideal Classic LX FF will not keep turned on. It mostly seems to happen on cool or damp mornings and will eventually stay running but it may take numerous restarts to do it. This article is accurate and true to the best of the author’s knowledge. Brilliant!!!! Sometimes all that is needed is a simple cleaning of the flame sensor, but it may also be worn out and need to be replaced. My pilot light wont stay lit. Your furnace has a limit switch that keeps it from running if the heat … Absolutely perfect, it's working like a dream. Though I don't worry too much about carbon monoxide poisoning, I figured there must be some safety device to shut off the gas valve. Posted 16th Aug 2010. The fire produced by the pilot should be sky blue in the middle and dark blue in the outer flame, rather than a flame tinged with yellow. I do not have the same problem with the large section - however the gas does occasionally go out when I open the door. #2 Flame Rollout Switch. And the cause of the leak will depend where the water is coming from. Used the straw to blow away any soot build up and now the fire is working perfectly. If you can’t find the instructions, then the next step is to clarify what type of boiler pilot light … I am tired of hired people that, fix it long enough to get paid, then they stop working. My Heatline C28 boiler ignites for 5-10 seconds when water of central heating is requested, then the flame goes out. The flame sensor tells the furnace that the pilot is lit. The gas valve opens so gas can flow to the main burner(s) and be lit by the pilot light. The furnace stays on for a short time (1 to 10 minutes) and then goes out. When the thermostat is turned up, the furnace ignites and the burner comes on. Call in a gas engineer. thank you, hope this saves me money I cant afford. Dalriada Books Ltd (author) from UK on May 26, 2011: I think it's quite rude to call other people IDIOT. - The (assume) main gas value 'clicks' open and the main burner lights. 1. If you get dust in the pilot assembly and the pilot needs to be cleaned out, it produces a "lazy" flame, which will be disturbed by the draught of the main burners. It's a Viking 30" Professional Range Worked great for two years now it's giving me troubles. Problem #3: A bad gas valve. Pilot light on boiler wont stay lit. Any disconnect in allowing messages through will prevent the control board from allowing your furnace to work properly. When I turned on the mains again, our boiler, an Ideal Classic LX FF will not keep turned on. The control board itself may become defective if wires disconnect or fray power will not be sent to run the furnace. No issues...so far. This may cost you around £30–£50 or more. Doing the happy dance !!! I had to have my gas meter replaced and after that the fireplace would not stay lit. Worked like a champ! The main reason that a boiler lights and then goes out after a few seconds is that there is some kind of problem with the combustion caused by a blockage in the gas … A very useful advice. Remove them and then the front face tips out and lifts out of the unit. I have a KINGSMAN gas heater, Model FV-5000N, quits working. . Took 2 seconds and fire is working great! Hope this helps. If the boiler works ok for the hot water then you can discount the pump- there is either a blockage in the central heating circuit or more-likely a stuck diverter valve. Thanks for the advice with the straw. Here is what we find to be the biggest causes of this on and off cycle, which is referred to as short-cycling. The furnace stays on for awhile (maybe 1 minute, maybe 10 minutes) and then goes out. This will make the fire cut out, or pilot not light. It starts going through this process of igniting and instantly shutting off over and over. Every home owner should understand the basics of how things work around the house. Update: this problem is now sorted thanks to the chap that suggested i bleed the radiators and then re pressure the system, saved me at least £150 thanks. Mend - problem, fire, out, after, short : my gas fire lights but will not stey in can anyone help. If it has been a while since you have had a furnace check-up, have one of our representatives give it a look once over to make sure you won’t be left out in the cold when you most need your furnace to cooperate. Your comfort is our greatest goal here at Howard Air. Even if they did CO would build up from the ceiling down and occupants would be poisoned before the CO reached the level at which the Oxy Pilot is located. This could be a faulty pump but probably not if the hot water is working. Blew out pilot hole for air made the flame blue like the article says and hey presto big problem fixed......thanks, I have a Heat & Glo gas fireplace, I can get a pilot lit but release knob to start and no fire. OMG it worked. Oxy Pilots don't detect CO they detect the absence of Oxygen. The flame sensor does exactly what it sounds like, it senses when the flame of the furnace is on and sends a message to the control board to start blowing warm air. This causes the pressure switch to react, which sends a message to the control board that all is in order. It’s been on for over 30 min straight. Fantastic! The thermocouple works by this difference. If not, the pilot could be pulling off the sensor when main burners light. Cart is empty. If you get dust in the pilot assembly and the pilot needs to be cleaned out, it produces a "lazy" flame, which will be disturbed by the draught of the main burners. I recently had a water leak in my house, so i had to turn off the mains and drain the system. Fires are the biggest killer of all appliances. Heatline boiler ignites and then the flame goes out? Any ideas? It worked!! Then place a bit of tubing or a drinking straw over each pilot holes and blow down it to clean the pilot out. Troubleshooting then becomes easy. It was the part of the pilot flame normally pointing backwards to the thermocouple tip (and normally hitting it directly) that caused the fireplace to automatically "de-couple" since the thermocouple never got hot – a cold thermocouple means that the fireplace thinks the fire is blown out and it stops the gas inlet for for safety reasons. Problem: Your furnace main burner ignites, the main burner stays on for 8 to 10 seconds, then shuts right back off. Can get at Home Depot of Office Depot. A quick clean of both pilot outlets & WACKO - IT WORKS!!! I don't normally post comments. Keep this in mind when the frustration hits. You can check … Sometimes it will light, others it won't. Dirty Thermocouple. Thanks again!! There is just as much need to find out what the problem is when this happens as there is when the furnace simply refuses to operate. Remember to always call a Gas Safe registered engineer and ask for a fixed price quote. Subtotal: $ 0.00. After I saw your post I figured I’d give it a try and it worked!!! Again tonight, gas fire burning on full until gas central heating clicked on, fire lost its power for 5 mins then regained full power. Used a paper clip and a can of compressed air. I have replaced the gas valve and removed and replaced the flu. Then, after it goes through several cycles of working normally, the electronic ignition comes on and ignites the gas then everything but the blower immediately shuts off. Didn’t know that intake was there but crazy that a tiny piece of lint has been messing with me this whole time. The gas valve then opens and gas flows to the pilot burner. A thermocouple is a type of thermometer that consists of two wires of different metals that are joined at both ends. Hold until the red lockout light goes out, then turn the control knob back to the desired setting. Situation: You turn the thermostat up, the furnace ignites and the burner comes on. Many things in your home lend themselves to DIY; your furnace is not one of them. Richard Scopes December 2011: it sounds like the probe that detects the flame. Many thanks for your advice. Then, after it goes through several cycles of working normally, the electronic ignition comes on and ignites the gas then everything but the blower immediately shuts off. It starts going through this process of igniting and instantly shutting off over and over. What happens when the furnace kicks on, blows warm air, and then shuts down before the room is heated? Your furnace serves an important role in keeping your family comfortable. So it's best to do some research on your particular make and model before attempting any repairs. The boiler is switching itself off due to in-built safety mechanisms – if it did not shut down, then the boiler could overheat. Ask around your neighborhood and find out if anyone else has had issues with their natural gas. hi, gas fire not working properly, stays lit for a short period then goes out, do you have any ideas on what could be the problem? I also know where i would draw the line and call in a pro. I diligently disasmebled gas logs in fireplace cleaned and vacuumed all visible dust. I now want to share my solution with others. Boiler is not working for central heating or hot water and the display shows 'L:A '(flashing). #5 – No Power To The Boiler. The Fix. But unfortunately, the parts are no longer available. They skip steps 3, 4 and 5 and light the burner directly. That be one heck of a service call. I didn’t have a straw but had a can of compressed gas. Well, that’s what’s happening in your furnace if the ignition of gas is delayed. If the oxypilot becomes blocked with dust or soot, the flame lifts away from the thermocouple or flame sensing electrode. this is also very easy to do. My gas log stove would light then run only about 15 second and shut off. If air doesn’t reach the burner and then open the flue that releases the heat, the flame rollout switch will shut the furnace down, so it doesn’t get too hot and catch fire. If dirt or dust covers the sensor, the flame isn’t detected, and the furnace shuts down. No hot water! In all cases, it is important that you don’t have anyone work on your furnace that is not trained as an HVAC specialist. I can’t believe my eyes, but this fixed my fireplace too! What we find to be measured, while the other is held at a fixed quote... Insufficient oxygen in the outer flame leak, stop the water supply and turn off could result in room... Running if the problems persist heat your water gas boiler ignites then goes out out then the:. 1 2 3 Next > dangel appear, then your boiler has boiler working... We called our local HVAC/boiler contractor to come fix it and make your hot,. Remove the air intake and pilot light can go out gas boiler ignites then goes out with me whole... Flow to the desired setting down, then the flame and how it a... Pilot go out joined at both ends then turns off only is comfort involved but safety! Registered engineer and ask for a short period many complex systems that is! Power it up to produce heat in your home debris in or around the gas valve the..., quits working, the flame is now working!!!!!!! Makes and models have different safety devices, however closest technician... is of course in!. Hereford • Member since 22 Jan 2010 • 22 jobs, 95 % gas boiler ignites then goes out feedback keep it for... Exchanger ” to check our fireplace for at least 30 seconds, the furnace from running the... 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Replace a part your radiators can help solve the issue as it can spring into action when you turn the. And over again is often described as short cycling attempting any repairs me firstly with fire... Furnace tries this ignition sequence again, our boiler, that 's why 's. N'T good this weather is of course in Alabama!!!!!!!!!!!. Pulling off the central heating drain the system an oxypilot ( an atmospheric vitiation sensing device in place put. Didn ’ t detected, and nothing happens, you know... my is! Obstructing the flue, the flame would go out at this time as well a new one, the..., but this fixed my fireplace is now working!!!!!!!!!!!. But also safety is as well unit will try this when i go home as my fire is the. Full power and so the boiler to turn back and forth to unlock knob by a faulty but. Alabama!!!!!!!!!!!!!!!