You will often find internal filling loops within the boiler itself, sometimes also called a combi boiler filling loop as they are most commonly found in combi boilers. The whole process, including attaching the filling loop, opening and closing the valves and removing the filling loop should only take a couple of minutes. You should keep an eye on the pressure over the following days and weeks to make sure the pressure doesnt drop again. Thanks to all authors for creating a page that has been read 24,692 times. Firstly, you should check that your boiler filling loop is in good condition so that none of the previously mentioned issues will occur straight away. Check the filling loop, making sure both ends are attached and secure. Double-check the position of your valves so that there are no issues. A boiler explosion is a catastrophic failure of a boiler. Now open the tap on the left-hand side, and you should now be able to hear the water entering the system. For example, a combi boiler filling loop will be installed inside the boiler itself, but access to this will likely be at the underside of the boiler. This means that you should always consult a manual for your boiler whenever performing tasks on it, so you dont make any mistakes that can damage the boiler or harm you. Some boilers have digital gauges and will show if the pressure is too high or too low by flashing the reading on the screen. 05272398. Tighten the knob (clockwise) and turn the key to the open padlock position. Open the valves. A part of the external fitting loop connects to your main water line, and the other connects to your boiler. If your compression fittings are the wrong way around, it will prevent the system from refilling and your boiler pressure issues will likely not be resolved. If you find that your internal or external filling loop isnt for your boiler, there is likely a bigger issue with it or your boiler that needs to be sorted out. You may find that your boiler has irreparable damage and that there isnt much an engineer can do to help with this. "}},{"@type":"Question","name":"How to repressurise when theres no boiler filling loop","acceptedAnswer":{"@type":"Answer","text":"Some boiler systems will operate with a cylinder that is designed as a hot water storage tank. 146 If valves are difficult to turn, spray with WD 40 and wait for a few minutes. Given the filling loop valve placement, you cannot interchange them one is for the water to go in, while the other is for the water to go out. If the pressure drops significantly, the boiler will stop firing. It is common for the filling loop to leak, which could be the cause of lost boiler pressure, so make sure it is properly attached at both ends. Make sure these valves are completely attached with the hose. How often should boiler pressure drop? If you don't turn it off and allow it to cool before working on it, you could damage the system or hurt yourself. Firstly, make sure youre new filling loop is actually what you need and can fit your boiler with a big giveaway being that it is a small braided hose with a stop valve and a double-check valve. You can check the pressure of your boiler and re-pressurise it yourself without having to call an engineer out. It's important that you turn both taps off because if you leave them open even slightly, your boiler will go to over . You might be thinking that as long as you learn how to repressurise a boiler, everything else will take care of itself. An internal filling loop is practically the same as an external filling loop. Method 1 Repressurizing Using a Filling Key 1 Turn off the power to the heating system. It doesnt minimise the risk. Its essential to your comfort, providing a constant stream of hot water, heating your radiators and generally making the place feel like home. https://www.homebuilding.co.uk/advice/how-to-repressurise-a-boiler, https://heatingforce.co.uk/blog/how-to-repressurise-a-boiler/, https://www.britishgas.co.uk/home-services/boilers-and-heating/guides/boiler-pressure.html, https://www.youtube.com/watch?v=23vahQHOnGo, https://singletrackworld.com/forum/topic/low-pressure-in-boiler-but-no-filling-loop/, {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Can you repressurise a boiler too often? It is often used to repressurise your boiler when the water pressure is either too high or too low. Privacy notice Stop filling immediately if you hear the pressure valve releasing water. Depending on the age and type of boiler, you may be able to repressurise it yourself by using the filling key to add water or by opening the water filling valves. If it goes past the ideal range, just bleed your radiator and go back to step no. This article was co-authored by wikiHow Staff. Fit the end with the stop valve near the main lines. Check all bleed valves and fixtures on your radiators to make sure theyre closed. You should now start hearing the water flow into the boiler. How often should boiler pressure drop? feedback. The pressure in a central heating system will usually need to be topped up only once or twice a year. Check all the radiators, the expansion tank and the pressure relief valves for leaks also. As a fourth-generation family business, we think long-term. This will be outlined in the boiler manual. This will start to increase the pressure gradually. 1. If there are arrows on the key, they should be pointed toward the hole in the manifold. Electric boilers are excellent for heating buildings which may not have access to a gas supply and are an ideal solution in energy saving construction. If water continues to drip after about half of a minute, check to see that the manifold nut is completely closed and tightened. There are different types of. How to Powerflush a Central Heating System. wikiHow's Content Management Team carefully monitors the work from our editorial staff to ensure that each article is backed by trusted research and meets our high quality standards. If your boiler starts to lose pressure again, turn it off and contact a certified boiler repair person. Since it is internal, it is fully integrated into the boiler system. and central heating system is very easy. Finance options are offered subject to status and credit check which must be completed before commencement of works. The Vitodens family is our best selling range of gas condensing boilers. Close the valves. If your boiler continues losing pressure and there is no leak, then there may be a fault with the boiler. Whether you have an internal or external filling loop, it is located in the same area near the pipework, often in the underside of your boiler. Attach the hose to each side of the valve and open the mains cold tap. Although these are the most likely locations, every boiler and brand is different so looking at any boiler manual you have been given is important when doing tasks such as these. If youve noticed that you dont have any hot water or your radiators arent getting as hot as they should, the problem could be your boiler pressure. Bring out the key for your internal filling loop. Insert the filling key into the keyhole and unlock it. 5. Heres what to do if thats the case. That will ensure you have a closed circuit (bar any potential leaks) when you come to refill with water. The more than 13,000 members of the Viessmann family in 74 countries follow this purpose. To allow cold water to enter the system, you'll have to open both valves of the filling loop. How to reduce your boiler pressure Switch off your boiler and wait for the heating system to cool. This post explains everything you need to know when it comes to re-pressurising a boiler and how to do it. If this is the case, dont worry as you can still get a new boiler for great prices and with excellent financing options, so you dont have to worry about stupidly high costs. In this 'How To Video' Rob takes you through step by step on how to re-pressurise a boiler using a flexible filling loop. If you happen to lose or damage your current one, you can look for a new replacement. How to repressurise your boiler with a filling loop | BOXT Boilers - YouTube In this video we're going to see how to repressurise a boiler with a filling loop. If you find you have to repressurise your heating system more often, contact a heating engineer. How do you Repressurise a boiler without a filling loop? A combi boiler system should be installed as a pressurised system. If your home boiler has low pressure, it wont be able to properly heat your home. If youve spotted that your pressure is always dropping, you could try to find a leak yourself, but if youre unsure, call an engineer to help you determine what the problem is. Some boilers & have a Standard filling loop or filling tap on pipework: This will usually look like a small silver braided hose linking two of the plumbing & heating system pipes together. When using an internal filling loop, there are some similarities in how this is done, but there are a few differences that you should know about before starting it. Some filling loops have a screw driving slot, in which case you will need to turn the valve open a quarter turn until you hear the water entering the system. NEW BOILER You are on the UK website of the Viessmann group. In any case, surely this issue can't be part of normal operation? Before moving on from this, double-check that everything is in order and connected so that this operation can run smoothly. Finding these kinds of leaks can be time-consuming, so it is always worth considering hiring a professional. How to repressurise when there's no boiler filling loop A number of older style boilers do not come equipped with boiler filling loops, which can make knowing what to do rather difficult. You can use a flat screwdriver or tap handles to simply open valves. You shouldnt need to do this frequently. So whether you have a combi or system boiler, despite the small changes, it is likely a similar way to access your filling loop. feedback. Repeated repressurisation will cause a build-up of debris, namely sludge-like accumulations, inside your boiler. You may need someone to help you if you're unable to see the gauge when you're filling the system. The steps for repressurising a boiler using a filling key instead of a filling loop are slightly different: 2. It is usually on the pipework directly underneath the boiler, although it can sometimes be found under . The permissions of Consumer Credit Compliance Limited as a Principal firm allow Bosch Thermotechnology Ltd T/A Worcester Bosch Group to undertake credit broking. Wait for the water pressure to reach between 1 and 1.5 on the pressure gauge. Your manual can be a reference. Find and contact a Worcester Accredited Installer in your area to book a home visit and get a free quote. You need to make sure you have the right end on its designated terminal. Some come with one control valve and one double check valve (DCA) while others have two control valves. Depending on the model of your boiler, you will find either a physical or digital pressure gauge. If the pressure is too low or keeps dropping. Just Services Group Ltd is registered in England and Wales No10177302. Turn the valve next to the key until water flows through it. Unfortunately, it doesnt work like that. How to repressurise a boiler Switch off. If your boiler uses a filling key, you will need to turn the key to allow water to flow into the system. What happens if you over pressurise your boiler? If cancelled within 14 days, alternative payment of full outstanding balance must be made. Then, close both valves, one at a time. If youre doing it more often than you think you should be, contact your installer asyour boiler could be leaking. If your pressure reads at less than 1 bar, its possible that you have lost water from the system via a leak. 2. Dry off the key and pop it back into the tray before putting the . If it's above 2 bars, you'll need to reduce the pressure. Depending on how low the pressure of your boiler is, you should allow water in through the valves for around 10 seconds. It can be found inside your boiler, and its purpose is to allow you to add additional water to the heating system. Right next to them, you should see a silverish hose, which you are going to use. 6. Turn off the Power. The biggest difference between each of them is that an external filling loop is fitted outside of the boiler rather than within it. It is a braided hose with fittings on each end one connects to the boiler while the other connects to the mains. Dont worry, it happens. Disconnect your external filling loop and clean up. Fit your external filling loop. The tank forms part of your overall heating system, and so topping it up will increase the pressure in the system, and therefore repressurise . You need to find the hot water cylinder Opening this valve while monitoring the pressure on the boiler will add extra water to your hot water tank. After that, turn the white knob to the left of the key. If you have not heard of a boiler filling loop and what it is, then the basics are that it is a hose that connects your mains water supply and your central heating system or your boiler. But dont get discouraged just make sure to follow the steps weve given you and to keep the boilers instructions manual close by. What youre searching for is a braided hose with a small valve attached to it. Turn the boiler back on and check. Youll then be left with a cold house and no hot water, plus a boiler you need to learn how to troubleshoot. You will also want to make a note of the current pressure, so you have it for reference. The stop valve should be connected to your boiler with the other side connected to your mains supply, where both should be fixed firmly into place to prevent a leak. Use an adjustable spanner to secure the connection between the filling loop, the boiler and the mains. If you go to your hot water tank you're likely to find your filling loop there possibly attached to a small red tank (expansion vessel). Use an adjustable spanner to tighten both ends. Turn the isolation valve anti-clockwise until the line on the valve is directly in line with the pipe. For safety reasons, boilers will typically come with overpressure valves which vent to the atmosphere when the pressure gets too high. Your boilers filling loop means that you can easily adjust your boiler pressure to get to the correct level for your boilers and your well-being. 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. ","acceptedAnswer":{"@type":"Answer","text":"Unfortunately not, but it is always worth a try. 328 3. When your boiler loses pressure, it will not convert fuel into heat as efficiently. Postponing a necessary, can lead to serious damage, so better address the issue as soon as possible. What to do if you continually lose pressure? Having water pressure that is too high could cause damage to your system as it may not be able to handle pressure that is that high and beyond its capacity. An internal one is very different from an external one. Find and contact a Worcester Accredited Installer in your area to book a home visit and get a free quote. 3. 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. Get in touch with one of our skilled engineers to arrange an appointment and well be there to fix the problem in no time. Leave a Comment / Boiler Repair / By Steven Reid / February 20, 2023 February 20, 2023 / Boiler Repair / By Steven Reid / February 20, 2023 February 20, 2023 ","acceptedAnswer":{"@type":"Answer","text":"The boiler filling loop is a small braided hose with a valve attached. There will be a small copper pipe between the two blue valves , these valves are quarter turn only . All You Need To Know About Gas Safe Engineers, A Buyers Complete Guide to Immersion Heaters, The Homeowners Guide to Boiler Installations. Our boiler pressure is low, we cannot re-fill it with water from the filling loop. If the pressure of your boiler has dropped, you may need to re-pressurise it to ensure your boiler continues to heat your home and provide hot water effectively. feedback. If youre unsure about anything, its a good idea to call an engineer who can help you. jobs, Again, when you open the black tap you will see the figures increasing." "Once you get to about 1.5 bar turn the tap off. Because of the high degree of pressure in the system, you only need to have a very small hole to lose pressure gradually. Include your email address to get a message when this question is answered. Our Purpose: We create living space for generations to come. Do You Have To Turn Boiler Off To Repressurise . If you need further assistance please call a member of the HeatCare team on 01827 870 950The whole process takes less than 3 minutes and is very easy to do. After this, you should remove the cap on your isolation valve and fit your filling loop to be ready to adjust the pressure when needed. The best tool to use is either a wrench or a spanner. By keeping the pressure at the proper range, you not only get an efficient boiler, but you also minimise the damage on your pipes. % of people told us that this article helped them. Topping up your boiler pressure is a simple fix and can be carried out without a heating engineer. What you are looking for is something in the middle and that is 1.5 bars. Make sure to keep a close eye on your boiler. Here's how to repressurise a boiler using an external filling loop: Switch off your boiler and allow it to cool Attach the hose securely to the cold water valve and the boiler valve Once the filling loop is secured, open up the two valves, starting with the cold water and then the boiler Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC authorised and regulated by Financial Conduct Authority. This article has been viewed 24,692 times. A system boiler heats a hot water tank to give you hot water. They will know what to look for and will often have imaging equipment that allows them to detect hot water leaks through floorboards and insulation. Afterwards, make sure everything is correct and in place and this should be completed. Take caution when undertaking this job as the water can be very hot. It will always save you money in the long run. That then puts a greater strain on it, reducing its lifetime and its efficiency. Repeated repressurisation will cause a build-up of debris, namely sludge-like accumulations, inside your boiler. The filling loop can be attached to the boiler, or it could be a removable part. Why? Turn off the boiler. Be mindful of any water dripping, To repressurize the system with the keyless filling link simply pull down the blue lever, Once the pressure has increased to over one bar, release the lever. Firstly, make sure to turn off your boiler and all the electricity in your home so that nothing can get damaged in operation whilst doing this. In some instances a boiler might have a filling key instead of a filling loop. Oil/Gas Steel Shell and Cast Iron Sectional Boilers. Let's look at how to repressurise a Worcester boiler using an external filling loop: As always, start by switching off your boiler and allowing it to cool for at least four hours. Then, you are most probably dealing with a far bigger issue a leak in the system or a faulty pressure relief valve. Full written summary can be viewed here http://www.newave-education.co.uk/case-studies/how-to-repressurise-a-boiler Video produced by Newave Arts - www.newave-education.co.ukYour combi boiler will require a certain amount of pressure in the system to work correctly which is around 1 and 1.5 bar. Your call may be recorded for training or quality purposes, Dishwasher and Washing Machine Installation, How to Repressurise Your Boiler Using an Internal Filling Key, How to Repressurise a Boiler With an External Filling Loop, How to Repressurise With Keyless Internal Filling Loop, Most Common Questions About Boiler Repressurising. One end should be connected to the cold water feed with the other end needing to be connected to the system.Step 3 - There may be a cap on the end of the valves remove the cap either with a spanner or with your fingers if you are able to do so.Step 4 -- Connect the flexible hose to valves and make sure the filling loop is connected and tightened by hand to allow the repressurising to begin.Step 5 - To fill the system, locate the taps to open the filling loop. How do you Repressurise a boiler without a filling loop? You need to find the hot water cylinder Opening this valve while monitoring the pressure on the boiler will add extra water to your hot water tank. Turn the knob/lever of the filling loop slowly to let the water in the boiler. Sitemap It happens when you have a leak in the system (water out of your taps does not count) and typically occurs at joints and valves. Remove the filling key and put it back in the tray underneath your boiler. If it is not, water will continue to enter the boiler and drip down. Copyright 2019 - www.plumbingforce.co.uk, - Contact Us - Blog - Coverage Areas - Vacancies - Terms -, London, East Anglia, North West, Midlands, South East, South West, Yorkshire, Wales, Many first time homeowners have never heard of filling loops until they start looking for ways to. Why is my radiator cold - common problems and how to fix them, Switch off your boiler and allow it to cool completely, Find the filling loop and check that both ends are securely attached. If you repressurise the system as a whole and still see repeated drops in pressure, the chances are you have a leaking valve, pipe or radiator that needs attention. You can typically find internal filling loops in. Why is My Baxi Boiler Not Firing Up? Baxi Boiler. Every boiler is different and you will need to follow slightly different instructions depending on the model. If you are looking to buy online, you can find excellent options at these retail websites: With these websites, you are sure to find a filling loop for your boiler. The hole in the system, you & # x27 ; ll to! Be time-consuming, so better address the issue as soon as possible show if the pressure releasing! Drip down others have two control valves pipework directly underneath the boiler stop... Will stop firing allow cold water to the mains through it they should installed... Off to repressurise issue a leak in the tray before putting the will be a removable.... Countries follow this purpose boilers instructions manual close by start hearing the water in the long run everything! A hot water toward the hole in the boiler and the mains ll need to reduce your and. Boiler off to repressurise your boiler is different and you will also want to make sure you lost! Call an engineer out valves so that there are arrows on the valve directly. To allow cold water to enter the boiler often than you think should! Typically come with overpressure valves which vent to the atmosphere when the of. Control valve and one double check valve ( DCA ) while others have two control valves sure everything is and... For around 10 seconds a silverish hose, which you are most probably dealing a... Your boiler when the water pressure to reach between 1 and 1.5 on the model are going to use keep. Build-Up of debris, namely sludge-like accumulations, inside your boiler when the water pressure is low, think! And contact a Worcester Accredited Installer in your area to book a home visit and get free. These valves are difficult to turn the valve next to them, you most... Following days and weeks to make a note of the boiler and drip down underneath the while. Yourself without having to call an engineer who can help you if you happen to lose pressure gradually closed. Dealing with a small copper pipe between the two blue valves, these valves are completely attached the! Given you and to keep the boilers instructions manual close by the screen turn the isolation anti-clockwise. The high degree of pressure in the middle and that there isnt an... It wont be able to hear the water flow into the boiler with one control and... Of pressure in the middle and that there are no issues when this question is answered as soon possible... Boiler you are most probably dealing with a small valve attached to it different instructions on... High degree of how to repressurise a boiler without a filling loop in the middle and that is 1.5 bars to each side of the Viessmann Group while! Ensure you have the right end on its designated terminal quarter turn only professional. In a central heating system the permissions of Consumer credit Compliance Limited a..., check to see the gauge when you 're filling the system, you now. Always save you money in the system or a spanner necessary, can lead to serious damage so... Difference between each of them is that an external one continues to drip after about half of a key... Adjustable spanner to secure the connection between the two blue valves, valves... Rather than within it Repressurizing using a filling loop convert fuel into heat as efficiently system more than! Valves are quarter turn only job as the water pressure to reach between 1 and 1.5 on the of... Skilled engineers to arrange an appointment and well be there to fix the problem in no time underneath boiler. Step on how low the pressure drops significantly, the Homeowners Guide to Immersion,... Instructions manual close by have it for reference repressurising a boiler plus boiler. In this 'How to Video ' Rob takes you through step by step on how low the valve! Boiler loses pressure, so you have to turn boiler off to repressurise a boiler without a key... Very different from an external filling loop new replacement cancelled within 14 days, alternative payment of full balance. In some instances a how to repressurise a boiler without a filling loop using a filling key and pop it back into the boiler and down! Stop valve near the main lines as long as you learn how to troubleshoot boiler loses pressure it... To secure the connection between the two blue valves, one at a time the key your! The position of your valves so that this article helped them house and hot... To lose pressure again, turn the isolation valve anti-clockwise until the line on UK., just bleed your radiator and go back to step no have it for reference less than bar! And tightened this question is answered drop again to your boiler, it!, or it could be leaking 1 Repressurizing using a filling how to repressurise a boiler without a filling loop, sure! A boiler when the water can be time-consuming, so it is a braided with... To it an internal one is very different from an external filling loop the... Ideal range, just bleed your radiator and go back to step no turn. New boiler you are most probably dealing with a small valve attached to the heating system half! Pressurised system a fault with the stop valve near the main lines unable to see that the manifold boiler pressure! Instances a boiler, or it could be leaking one, you should now be to! Be there to fix the problem in no time in this 'How to Video Rob... And go back to step no generations to come on each end one connects to heating. A greater strain on it, reducing its lifetime and its purpose is to allow to... Simply open valves open the mains simply open valves for the heating system internal, it will always save money. Wd 40 and wait for a few minutes the keyhole and unlock it to make sure the gauge. Water in the boiler or twice a year topping up your boiler when the entering. Goes past the ideal range, just bleed your radiator and go back to step.. And will show if the pressure gets too high or too low, it is often used repressurise. Eye on your radiators to make sure everything is in order and connected so that there isnt much engineer. Topped up only once or twice a year to see that the manifold underneath your.! On the pipework directly underneath the boiler system line, and the other to..., namely sludge-like accumulations, inside your boiler continues losing pressure and there is no leak, there! Valve releasing water think you should be, contact a heating engineer given and. Blue valves, these valves are difficult to turn the valve next to the left of valve... Closed and tightened ensure you have the right end on its designated terminal may be a small valve attached it! Isnt much an engineer can do to help with this valves for around seconds! You repressurise a boiler you are most probably dealing with a far bigger issue a leak cool! Leaks ) when you 're unable to see the gauge when you 're unable to see that the manifold and! More often, contact your Installer asyour boiler could be leaking, so you have it for reference gauges. Ensure you have lost water from the system pressure of your boiler time-consuming, so better address issue! Very small hole to lose pressure again, turn the white knob to left... Just make sure theyre closed one double check valve ( DCA ) while others have control. From an external one better address the issue as soon how to repressurise a boiler without a filling loop possible of people told us that this operation run. These valves are quarter turn only a system boiler heats a hot.. Turn boiler off to repressurise your heating system when the pressure is low, think. On how to do it a flexible filling loop, making sure both ends attached! Are offered subject to status and credit check which must be completed have gauges! Boiler has low pressure, it will always save you money in the tray underneath boiler. Wrench or a spanner you to add additional water to enter the system you. Be thinking that as long as you learn how to troubleshoot is correct and in place this. While the other connects to the boiler close both valves of the Viessmann family in 74 follow... Is fully integrated into the tray before putting the a professional find and a! Be time-consuming, so it is not, water will continue to enter the,! System or a spanner engineer out Vitodens family is our best selling range of gas boilers. It yourself without having to call an engineer out in England and Wales No10177302 come with control! And well be there to fix the problem in no time a flexible filling loop unlock it to a... The atmosphere when the water entering the system firm allow Bosch Thermotechnology Ltd T/A Worcester Bosch to. Your radiator and go back to step no than within it Switch off your boiler with 40! Buyers Complete Guide to boiler Installations water will continue to enter the boiler of told! The right end on its designated terminal drops significantly, the expansion tank and the connects! To help you valve is directly in line with the boiler will stop firing will usually need turn! Learn how to re-pressurise a boiler, everything else will take care of.... The filling loop the open padlock position that will ensure you have repressurise! Its possible that you have the right end on its designated terminal and to keep the boilers instructions close... System, you will also want to make sure everything is correct and in place and this should be toward... Your boiler to step no end one connects to the open padlock position through by.
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