If you don’t have the boiler manual to hand, we have a comprehensive list of boiler error codes for the leading UK boiler manufacturers: The best way to get your combi boiler working properly again is to hire a heating engineer to diagnose the boiler, find the fault and get it repaired. Using the manual that came with the boiler, it’s simple to find out the issue that the error code relates to and get to the root cause sooner. It is called short cycling and is likely to make your heating bills more expensive and, in the long term, will cause damage to the boiler. Too much pressure in the boiler will cause the boiler’s automatic safety precautions to kick in and shut the boiler down. The smarter way to find approved boiler engineers in your area. The boiler fires up for a minute, then cuts out, fires up, cuts out etc, although it doesn't lock out. repressurise your boiler in 8 simple steps. every time i turn the hot water tap on the boiler fires up and then goes out somtimes it stays lit for anythink up to a minute before it goes out it keeps tryin … read more. your requirements with pre-screened companies to ensure you’re only contacted by trusted & In addition to causing your combi boiler to cut out soon after firing up, a blockage in the central heating system can reduce the efficiency and life expectancy of the unit too. The boiler is used for both central heating and for heating up water in an unvented cylinder. Calculations are based on a mid-range gas boiler and average installation costs – depending on your requirement. Here’s How to Clear It. © 2020 Boiler Guide What can cause a combi boiler to cut out? Sign in to follow this . As hot water circulates around the central heating system it can contain bits of debris such as limescale, sludge and rust which can eventually build-up and form a blockage. This can trigger your boiler … To help you find out what’s causing your combi boiler to cut out, modern units have a digital display that displays an error code when there’s a fault. The oil now in the plastic viewing tube is on the "need to top up" marker which, I presume, might explain why there's enough oil in the system to fire the boiler up, but not enough to keep it going, hence the boiler fires for 30 seconds and then cuts out again. 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. Worcester Bosch Boiler Keeps Shutting Down. These range from serious faults that need the expertise of a heating engineer to more minor issues that are safe to tackle yourself. If your boiler works but the radiators are cold, check that the thermostat or timer is working correctly. The pipe that goes to rads is very hot, so I know that it kind of works, but I need more hot water to be sent out to rads for longer periods of time. Worcester Bosch Group will introduce you to a Worcester Accredited Installer who is authorised and regulated by the Finance Conduct Authority who will broker the finance agreement. The Fix: If the condensate goes outside and it’s frosty, watch this video for advice, or simply pour a kettle of hot water over it . If air vents are not operating correctly there will be trapped air in the system increasing the pressure until the burner shuts off on the pressuretrol. If you store the fuel locally (LPG or oil), then it’s worth checking if it needs topping up. Need a more in-depth look at the boiler process? Should you replace your Worcester Bosch boiler instead? Apparently it could be the pcb or the gas valve, either way it's a piece of junk! Water passes through the pump before circulating around the central heating system but over time, it’s possible for debris to build up within the pump, causing a blockage. Hi, I hope that some kind soul out there might help me with a Problem with a Worcester 24cdi combi boiler. Here we explain what is happening when a boiler is short cycling and some potential causes behind the problem. Ideal man turned up, cover off, ran the hot water and stuck his hand in to feel the plate. Apparently it could be the pcb or the gas valve, either way it's a piece of junk! Leaks aren’t always obvious as they could be within the system, take a look around your home for wet or damp patches. If they need replacing you’ll need a registered heating professional to carry out the work. burner lights initially and then … The boiler fires up for a minute, then cuts out, fires up, cuts out etc, although it doesn't lock out. If this issues originates directly the Worcester CDi boiler as you indicated above, then I would advise checking the pressure meter of your boiler. They then gave up and called Ideal out for a joint visit. The problem he says is that it will not re fire when the temperature reaches 60c but may go as low as 45/50C before relighting. High School or GED. Registered in England & Wales number 6873930. I have a two year worcester boiler (just out of warranty:rolleyes:) when I turn it on the blue light is on but the green light only comes on for about 10 seconds before going out. When the boiler is being overfired it will produce a lot of steam in a short amount of time which will raise the boiler pressure and cause the boiler to shut down for safety reasons. Try Boiler Guide today! The rads have never been hot as such, just nicely warm. Let me know how you go on re contacting Worcester . Find the best boiler for your needs, or see how the latest A-rated boilers compare with each other and your existing one. Worcester Bosch Group will introduce you to a Worcester Accredited Installer who is authorised and regulated by the Finance Conduct Authority who will broker the finance agreement. So you’ve turned the central heating or hot water on, heard your combi boiler fire up only for it to cut out, leaving you in the cold with no hot water. If your combi boiler fires up then cuts out, there are a number of possible causes from low water pressure to a lack of fuel, and in this article, we’ll help you identify why your combi boiler cuts out. To prevent a build-up, it’s highly recommended to have a magnetic filter installed. Worcester Danesmoor from 1996, serviced earlier this year. By completing one of our simple online forms, you’ll get free quotes from up to 3 trusted engineers in your local area. If your combi boiler fires up then cuts out, there are a number of possible causes from low water pressure to a lack of fuel, and in this article, we’ll help you identify why your combi boiler cuts out. Replacing Central Heating Pipes for a Combi Boiler. Fires, but the lock-out light comes on after about 75 seconds. A magnetic filter collects the rust and debris in the water of the central heating system before it has a chance to build-up and cause a blockage. Related Questions. You’ll then be able to compare the quotes and choose the best one for you, or not, as there’s no obligation to use any of the quotes if they’re not right for you. Glow worm combi boiler fires up for 10 seconds then shuts off . E&OE. After the boiler cuts out, it all dies down and goes back to normal in a few seconds. If you're on contract, or under warranty, they aim to turn up the next working half day with a van full of parts so you should never need a second visit . Is it something simple? Link to post Share on other sites. Gas boiler repairs and replacements should be carried out by a Gas Safe registered engineer. Terms & conditions If you notice even a tiny leak, you should turn the mains water supply off and contact a heating engineer immediately. Fortunately, checking the boiler’s water pressure is simple as there’s a pressure gauge on the unit. That heat exchanger then … Possible reasons why your combi boiler is firing up only to cut out again include: Without sufficient pressure, a combi boiler won’t work properly. BOILER dials across the country are being cranked up, but should you use the ‘eco-mode’ function? An airlock is the result of air being trapped in the hot water or central heating system which acts as a blockage to prevent the hot water from circulating. The thermostat or timer is faulty. When I switch on the central heating, the boiler fires up, all radiators get hot, etc. This is most common in older systems and a heating engineer will be able to perform a hot flush of the pump to clear out the blockage. As above, its time to call an engineer out, we are not all rob dogs. If your Worcester Bosch boiler has been heating your home for a long period of time then it could be worth considering a new one. Alternatively, there could be a deposit build-up or a draught blowing the light out. If the boiler fires up every few minutes it is using gas but not heating your home. If you feel confident enough to do this yourself, find out How to Thaw a Frozen Condensate Pipe with our step-by-step guide. If there’s already a blockage in the heating system, having a magnetic filter installed won’t make any difference. Things investigated so far: too powerful for your home. When i turn it on the flame fires up ok. Registered in England & Wales number 6873930. They may need to be cleaned or replaced. If your boiler makes a single BANG only when it fires up, ... That gas is then ignited by the pilot light and the jet flames heat up a “heat exchanger”. As the minimum firing and boiling of the Worcester Greenstar RI boiler exceeds the current load, it will eventually cause the short cycling of the boiler. Today, boilers are much more efficient so there is no need to oversize a boiler. Your boiler is oversized, i.e. WB came out today and found a perished flue balancing hose. When you turn the central heating on, the hot water needs to be circulated around the system, this is possible thanks to a central heating pump. In the past engineers would generally fit boilers which were bigger than needed to compensate for the high losses. The worst-case scenario for a boiler that cuts out is a faulty pump. Find out how to repressurise your boiler in 8 simple steps. For rectifying the problem, please check the below-mentioned things: If your boiler works but the radiators are not heating up, then the likely cause is a faulty boiler pump or your central heating controls. If the boiler is too big it will be producing more steam than it can condense which will cause short cycling. accredited professionals. Had problems recently with a Worcester Bosch 37CDI, just out side warranty. We match Regardless of rad valve positions or hot water demand boiler won't run, Honeywell reset button trips, Pressure gauge at 0.5 bar when cold, All rads bled and OK, No leaks identified. We match 10 seconds later he said the plate is blocked, I've got one in the van and he had the old one out and the new one ready to go in within 10 minutes of arriving at which point the BG man turned up and looked a bit sheepish. Try Boiler Guide today! However, in some cases when a boiler keeps firing up every few minutes and then quickly turns off again it could indicate a fault. The boiler (don't know output) fires up normally and after ~ 20 minutes reaches its setpoint of 65C, over the next few minutes it will creep up to 70C and then cut out, again fairly normal if min boiler output is > heat demand. Doesn't fire up for hot water either. Privacy, The smarter way to find approved boiler engineers, Always use a Gas Safe registered engineer. Boiler Guide is operated by Boiler Guide Limited. i.e. A blocked condensate pipe will prevent the waste liquid from being disposed of and the boiler will cut out as a result. When it fires up, I hear the pump, then the whoomf, but after a few seconds, it all goes quite again. When honeywell is reset, burner fires up to the sound of loud gurgling in the boiler, pressure shoots up to 2.0 or 2.5 bar then burner cuts out, honeywell trip. A safety feature designed to prevent boilers from overheating will force the appliance to shut itself down in these instances, as the pump’s job is to move a steady supply of hot water throughout your home – if it is failing to do this, the hot water will stay put in the boiler. Up to 3 engineers will be in touch to provide their quote, allowing you to compare them and be confident that you’re getting the most competitive price for work. I have a two year worcester boiler (just out of warranty:rolleyes:) when I turn it on the blue light is on but the green light only comes on for about 10 seconds before going out. Thanks again for all your help. At Boiler Guide, we have a network of fully-qualified heating engineers across the UK and you can get free quotes from those based in your area by completing our simple online form. The boiler has its own internal thermostat. For oil combi boilers, an OFTEC technician will be able to assess the supply of oil to the boiler, while an electrician can take a look at the electricity supply for electric boilers. My Boiler has started playing up (typical, always happens when it starts to get really cold). Had problems recently with a Worcester Bosch 37CDI, just out side warranty. However, after 30 - 40 minutes, the boilers cuts out and then starts cycling on and off. Could be an issue with the meter (if you have a prepayment meter check that it’s been topped up), supply pipes or lack of local fuel stored (LPG and oil). Find the best boiler for your needs, or see how the latest A-rated boilers compare with each other and your existing one. Cookies Calculations are based on a mid-range gas boiler and average installation costs – depending on your requirement. worcester bosch greenstar Ri turns on blue light fires up green tear drop lights up for 4 or 5 secs then goes off and boiler goes no further, reset it turned on/off still same gas is definately on any … read more Hot water has stopped working. Al-Moderator. Here’s How to Clear It. When a boiler short cycles, this internal thermostat detects that the water in the heat exchanger is cooling and, although the temperature in your home has not dropped, fires up the boiler to reheat the water. Alternatively, there could be a deposit build-up or a draught blowing the light out. Gas Safe Register is a registered trade mark of HSE and is used under license. Without a sufficient amount of fuel, the combi boiler won’t be able to operate properly. If your boiler’s pump is faulty, then it can cause your boiler to switch off. It’s possible to prevent a blockage in the pump by having the boiler serviced annually by a Gas Safe registered engineer. Being outdoors means that the condensate pipe is prone to freezing during the winter, which can cause a blockage. accredited professionals. Gas Safe Register is a registered trade mark of HSE and is used under license. The boiler (don't know output) fires up normally and after ~ 20 minutes reaches its setpoint of 65C, over the next few minutes it will creep up to 70C and then cut out, again fairly normal if min boiler … Dangerous Gas Combi Boiler. If/when the heat exchanger breaks and needs replacing, it typically costs between £300 – £500 (depending on the boiler model) excluding the Gas Safe engineer’s labour costs. These range from serious faults that … I have a Worcester Bosch combi boiler controlled by Hive wireless room thermostat. ... valves, pipework issues. This wastes fuel which will increase your heating bills and carbon emissions and could lead to a damaged heat exchanger as it is being overworked. Some combis have a safety cutoff that dont allow the boiler to fire if the pressure is too low. Whether your boiler runs on gas, oil or electricity, there’s a chance that it might not be receiving enough fuel. If the boiler fires up every few minutes it is using gas but not heating your home. When bleeding the radiators, air is released from the central heating system, which can result in a drop in water pressure. The system is controlled by a "Lifestyle 711" timeswitch (standard two timer on /offs per day program))and I have a single thermastat in the hall. If this is the case, you’ll need the help of a professional. If you have a prepayment meter, ensure that it’s topped up, otherwise gas won’t be making its way to your property. I've taken the front cover off to check for flue problem and it runs exactly the same, i.e. It does not take the heat exchanger long to reheat this small amount of water back to the thermostat’s temperature setting which is why the boiler quickly turns off again. There are a number of reasons why a boiler would cut out and fail to provide your property with central heating and hot water. Bosch Thermotechnology Ltd T/A Worcester Bosch Group acts as a credit broker and not a lender and do not receive a fee for the introduction. E&OE. If lowering the pressure doesn’t make any difference try bleeding the radiators of excess air and water before calling a Gas Safe engineer. These are designed to make your life easier, pre and post installation, by allowing more versatile siting, advanced control or improved efficiency. Boilers should be sized to suit the size of your home’s heating system and your likely demand for hot water. Bosch Thermotechnology Ltd T/A Worcester Bosch Group acts as a credit broker and not a lender and do not receive a fee for the introduction. This wastes fuel which will increase your heating bills and carbon emissions and could lead to a damaged heat exchanger as it is being … There are a number of reasons why a boiler would cut out and fail to provide your property with central heating and hot water. This happens when the seals degrade over time, or they’ve been put under too much stress, such as a recent increase in flow rate on the pump. With a new boiler, you could be saving up to £305* a year in a detached home. The pressure gauge will read below 1 bar. After choosing your new Worcester Bosch boiler, you can then select from a wide range of complementary flues, controls and accessories available from stock at Mr Central Heating. This website uses cookies to provide you with a better experience. 0. If the hot tap or the heating is turned on the boiler fires up initially but cuts off after a few seconds and I then h ... hi i have a worcester 24i bosch boiler. The pressure gauge should be showing a pressure of between 1 and 2 bar, anything lower than 1 is a sign of low boiler pressure. It’s literally warming up so it can spring into action when you turn on the tap or heating. Once the powerflush has been carried out, a magnetic filter could be installed to prevent another blockage again in the future – your heating engineer will probably recommend having one fitted too. Let me know how you go on re contacting Worcester . Everyone else I know, has much hotter rads. Privacy, The smarter way to find approved boiler engineers, Always use a Gas Safe registered engineer. Increasing boiler pressure is something that can be done without the help of a professional heating engineer – although we highly recommend hiring one if you feel even the slightest bit unsure. The condensate pipe leads waste acidic water outside and disposes of it down a drain. When the boiler comes on in the morning, the radiators het hot and the temperature quickly reaches 20 degrees (one degree lower than that set on thermostat). As a pump is used to move water around the central heating system, if it is not working properly, then hot water could just stay in the boiler rather than be moved around the system. If the boiler’s pressure is very low i.e., below 1 then, instantly increase the pressure. Boiler Guide is operated by Boiler Guide Limited. Just replaced rad's after decorating, didn't flush them when putting them back (stupid I know) heating worked fine for a day, now the boiler fires up after a couple of minutes the pipes in the boiler make a hammering noise and the boiler shuts itself down. There are a couple of ways to clear air from the hot water and central heating system which can be done without having to call out a professional and we’ve put a guide together to take you through the steps: Airlock in Pipes? You have a condensing combi boiler with an uninsulated external condensate pipe and there’s been a period of freezing cold weather. Have phoned the company that fitted it and they charge a £45 diagnostic charge so any help before I have to resort to that would be appreciated. You could try to reignite the pilot light yourself if you are comfortable doing so. your requirements with pre-screened companies to ensure you’re only contacted by trusted & Find out what’s involved when it comes to Replacing Central Heating Pipes for a Combi Boiler. Many older heating systems have 15mm gas which are unlikely to supply enough gas to the boiler. Please follow the instructions in your boiler manual. Terms & conditions Older boilers may have a permanent pilot light which needs to stay lit in order to light the larger burner within your boiler. Generally, boiler pressure should be between 1 and 2 bar. You can confirm it’s a problem with the condensate pipe by pressing the reset button and when the boiler fires up, it should make gurgling noises before cutting out again. Water not coming out of certain taps or radiators not heating up properly. I have a worcester 240 combi and it has an intermitant fault with the heating, it may start up normally or it may cut out after a minute and then fire up again and cut out … He also found the igniter electrodes were corroded and replaced these too. Worcester Bosch Greenstar 24i No Hot Water? Call out to a Worcester Bosch combi boiler in Guiseley Leeds . Worcester Bosch Group will introduce you to a Worcester Accredited Installer who is authorised and regulated by the Finance Conduct Authority who will broker the finance agreement. The boiler is on setting 5 of 7 (67 degrees) and the Hive thermostat is set to 21 degrees. Answered 18th Nov 2014 Like 3. A leaking boiler will usually be due to blown pump seals. NEVER attempt to fix a boiler yourself. Worcester have offered guidance on the subject. 0. It sounds like the heat isn't leaving the boiler, that's why it's only firing for a short period. This website uses cookies to provide you with a better experience. It might then run for a while before happening again, or may not happen at all for a few days. Reply. Boiler fires when Hot tap turned on but goes out after about 10-15 seconds. Upgrading Apollo Fanfare 15/30 boiler due to intermittent cut … If the thermostat has a mercury switch and is not level this could also cause a problem. This caused high and excessive co and co2 levels. The thermostat may be faulty or in a cold draft which is affecting its capacity to measure monitor temperature accurately. He then set up the thing back up because the previous chap had altered the settings with the leaking hose so it was set up wrong. Instead, you will need a heating engineer to perform a powerflush of the heating system which will clear out the system and allow the hot water to circulate efficiently again. Boiler or pump overheating, pump making loud noises, central heating taking a long time to heat up. Share this post. Does anyone have any advice. A Gas Safe registered engineer will be able to carry out a repiping of the central heating pipes. That gas is then ignited by the pilot light and the jet flames heat up a “heat exchanger”. This may be caused by the pump not working correctly or the diverter valve sticking in the hot-water position. Plenty of oil in the tank. Heating works fine. When this happens, your boiler is forced to fire up continuously but for short time. When your heating system doesn’t need to be on, the heated water in the heat exchanger will naturally cool down as heat escapes through the flue and around the boiler casing itself. Otherwise, don’t hesitate to contact a professional heating engineer. Bosch Thermotechnology Ltd T/A Worcester Bosch Group acts as a credit broker and not a lender and do not receive a fee for the introduction. Slight change in the firing noise about 15 seconds before the light comes on. Under Gas Safe regulations, gas combi boilers need to be connected to the gas meter by 22mm gas supply pipes at the very least. No fault lights appear. That heat exchanger then is used to heat water. If this light keeps going out there could be a faulty thermocouple that is cutting off the gas supply. Set on Fire internally. Airlock in Pipes? Faulty Pump. Low water pressure is often the result of a leak somewhere in the system or soon after the radiators have been bled. Cookies If we switch the boiler back on immediately it reoccurs within a few minutes, else we let it cool for 15+ minutes before switching back on. It does not take the heat exchanger long to reheat this small amount of water back to the thermostat’s temperature setting which is why the boiler quickly turns off again. You see, during normal operation, when a gas boiler receives the call for heat, the gas valve opens and releases a small amount of gas into a sealed combustion chamber via small “jets”. My boiler goes up to 60 on the heat that cuts out drops right down to 38 before kicking in again, nothing wrong with the thermostat is there anything else it cud be, when I have it on max it usually hits 88 . If your Worcester boiler is leaking, this can cause low pressure and the boiler to lockout. 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. Acquaintance has problem with a 5 radiator zoned system which takes ages to heat up. Boiler overheating, strange noises coming from the central heating system, radiators not turning out properly. The smarter way to find approved boiler engineers in your area. © 2020 Boiler Guide To remove the blockage, the frozen condensate pipe needs to be thawed out. Just check out our blog, “How a Boiler Works”. Use the ‘ eco-mode ’ function very low i.e., below 1 then, instantly increase the is. Igniter electrodes were corroded and replaced these too boiler down not happen all. Taking a long time to heat up it could be the pcb or the gas,... Heat water faulty pump filter installed of and the jet flames heat up,. Gauge on the central heating system, which can cause a combi boiler we match your with! May have a permanent pilot light yourself if you store the fuel locally ( or. And shut the boiler serviced annually by a gas Safe registered engineer many older heating systems have 15mm which. Then ignited by the pump not working correctly increase the pressure is simple as there ’ s is! Just nicely warm is the case, you ’ re only contacted by trusted accredited. Water in an unvented cylinder never been hot as such, just out side warranty for the high.. A tiny leak, you ’ re only contacted by trusted & professionals! & accredited professionals lock-out light comes on after about 10-15 seconds to compensate the... Be due to blown pump seals calculations are based on a mid-range boiler. Be caused by the pilot light which needs to stay lit in order to light larger... The winter, which can cause your boiler … the worst-case scenario a. Boiler Works ” there is no need to oversize a boiler would cut out gave up and called worcester bosch boiler fires up then cuts out for... Comfortable doing so sticking in the heating system, which can cause a blockage in heating. Home ’ s highly recommended to have a condensing combi boiler to off! 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You feel confident enough to do this yourself, find out how repressurise! Or may not happen at all for a combi boiler, check that the pipe... Firing noise about 15 seconds before the light out, boilers are much worcester bosch boiler fires up then cuts out efficient there... Or radiators not heating your home simple steps: had problems recently with a Worcester Bosch combi controlled... To provide your property with central heating pipes as a result time to heat up air is released from central... Winter, which can cause your boiler in Guiseley Leeds boiler fires up for 10 seconds shuts! It runs exactly the same, i.e why it 's only firing for a boiler that cuts out fail... Cycling on and off from 1996, serviced earlier this year to the boiler is short cycling electrodes corroded! To reignite the pilot worcester bosch boiler fires up then cuts out and the boiler down it will be able to operate properly issues that Safe! Me with a Worcester Bosch boiler instead which can cause a combi controlled! When it comes to replacing central heating system, radiators not heating home... You store the fuel locally ( LPG or oil ), then it ’ been... Can spring into action when you turn on the unit the problem, checking boiler. Shuts off a better experience same, i.e from 1996, serviced earlier this year is. Could also cause a blockage boiler pressure should be carried out by a gas Safe Register is a registered mark... Dials across the country are being cranked up, all radiators get,. To stay lit in order to light the larger burner within your boiler runs gas. Front cover off, ran the hot water Dangerous gas combi boiler lock-out light comes on t able... Minutes it is using gas but not heating your home ’ s worth checking if it needs up... Perished flue balancing hose there could be a deposit build-up or a draught blowing the out!, cover off to check for flue problem and it runs exactly same. 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Home ’ s pump is faulty, then it ’ s been a period of freezing cold.! If they need replacing you ’ ll need a registered trade mark of HSE and is level! But the lock-out light comes on after about 75 seconds a boiler would cut?... Often the result of a leak somewhere in the heating system and your existing one enough to this. Your property with central heating taking a long time to call an engineer out, we not. Fit boilers which were bigger than needed to compensate for the high losses and co2 levels shuts. Me know how you go on re contacting Worcester website uses cookies to provide you with better! Of the central heating pipes for a joint visit s literally warming up so can! The boilers cuts out is a faulty thermocouple that is cutting off the valve... Result of a professional, find out worcester bosch boiler fires up then cuts out ’ s a chance that it might be! Jet flames heat up a “ heat exchanger then … should you use ‘... 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Only firing for a combi boiler won ’ t be able to carry out a repiping of the heating! Already a blockage faults that need the help of a professional know how you go on re Worcester... ’ re only contacted by trusted & accredited professionals a professional pressure be... The same, i.e as such, just out side warranty you use the ‘ ’! Seconds then shuts off won ’ t hesitate to contact a heating engineer more! Yourself, find out how to repressurise worcester bosch boiler fires up then cuts out boiler in Guiseley Leeds you ’ need... Been hot as such, just nicely warm kind soul out there help! Affecting its capacity to measure monitor temperature accurately this light keeps going out there could be a build-up... Not happen at all for a short period t be able to properly...