What temperature should a condensing boiler be set at? 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. The water tank maintains the right water level while the pump circulates the hot water to your radiators. If youve tried to re-pressurise the system once and it hasnt worked, dont keep trying it. Last but not least, if you find youre continually losing pressure, call a professional to get the leak diagnosed and repaired. Every type and model of boiler is slightly different so double check you know what to do. If you have noticed that your heating system has become less efficient, or your pressure gauge has dropped into the red, then you will need to top up your boiler pressure. If cancelled within 14 days, alternative payment of full outstanding balance must be made. Repeated repressurisation will cause a build-up of debris, namely sludge-like accumulations, inside your boiler. However, if the boiler pressure has dropped gradually over time you may be able fix the issue by repressurising the boiler. Turn the handle valve anti-clockwise. 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. Wait for the water pressure to reach between 1 and 1.5 on the pressure gauge. The first step is always to switch off the boiler to allow it to cool down completely. Why? It's important that you turn both taps off because if you leave them open even slightly, your boiler will go to over . How often should you re-pressurise a combi boiler? Every boiler is different and you will need to follow slightly different instructions depending on the model. Locate the internal filling key What you are looking for is a small plastic covering that resembles a tray. In these cases, isolating it from the rest of the system and repressurising will prove that this is the case. 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. Get in touch with one of our skilled engineers to arrange an appointment and well be there to fix the problem in no time. With a little luck, your boiler will regain pressure and start working as it should. Make sure to leave the hose attached. 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. "}},{"@type":"Question","name":"Does repressuring the boiler always work? Repressurising a boiler without a filling loop, What to do if the boiler does not repressurise. Some boiler systems will operate with a cylinder that is designed as a hot water storage tank. It is used to repressurise your boiler and top up the water when you drain or bleed your system. On your boiler filling loop, there will usually be 2 valves on either side of the hose, which will allow access through them when open and shut them off when turned off. Click on the image to watch our video on 'How to repressurise your ecoTEC pro boiler'. Grab the hose and connect it to each valve. However, it shouldnt be too difficult to identify. Save my name, email, and website in this browser for the next time I comment. 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. Do not keep trying to repressurise the system, as this could potentially cause further damage. 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. You should re-pressurise it when the pressure has dropped to below 1 bar. 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 Find a local installer Each heating system needs custom designing. You should never have to re-pressurise this kind of boiler. If you notice you dont have a filling loop, but you do have a large metal cylinder thats warm to the touch, this is precisely where you need to start looking. . 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. There are different types of. The key should fit snugly into the manifold. Boiler Filling Loop What is a filling loop & how to use it? Bosch Thermotechnology Ltd, Registered Office Address- Cotswold Way, Warndon, Worcester, WR4 9SW Company registration number in England 1993294. Each heating system needs custom designing. You can go between the different models and pick the one you like the best. ATGAS. If you accidentally over-pressurise the system, dont panic. If the pressure drops significantly, the boiler will stop firing. Applications are subject to affordability, application, status and lending criteria. Grab your external filling loop and attach both ends to the valves on your boiler. Once everything is secure and in position, turn the lever on the filling loop to let the water run through it into the boiler. Yes, you certainly can. Locate the two white arrows on the key and turn them. Then, open the two valves, you should hear the mains cold water entering the system Keep the valves open until the pressure reading on your boiler gets to 1.5 bar. There isnt a specific timeframe that states when you should re-pressurise your combi boiler. In fact, it is one of the few things you can handle every couple of months. If it's above 2 bars, you'll need to reduce the pressure. Remove it to locate the internal filling key. Step 6 - Remove the filling key. But theres one more thing we need to talk about: the boiler filling loop. You are on the UK website of the Viessmann group. The connections are close to one another, so most internal filling loops are shorter than external ones. When it is in the off position and doesnt allow water through it, it will be perpendicular to the filling loop, creating a kind of t-shape. 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). First, switch off your boiler and give it sufficient time to cool. If it takes longer than this, you could have a leak in the system. If possible, wait 4 to 6 hours before working on the boiler after you turn it off. You need to make sure you have the right end on its designated terminal. To act proactively is your best go-to. When they arent, you can easily buy it separately. Just Services Group Ltd is registered in England and Wales No10177302. Depending on the model of your boiler, you will find either a physical or digital pressure gauge. How often should boiler pressure drop? In some cases, you may find that your filling loop issues actually lie with bigger issues for your boiler that need to be fixed. 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. That can make finding the cause of the leak difficult, something which is then compounded by how quickly the hot water droplets will evaporate. Besides the distinction between external and internal filling loops come in a variety of designs. An external filling loop hose is braided with compression fittings on each end. "}},{"@type":"Question","name":"Whats a boiler filling loop? ","acceptedAnswer":{"@type":"Answer","text":"The boiler filling loop is a small braided hose with a valve attached. 7. However, there are several standout differences. Opening this valve while monitoring the pressure on the boiler will add extra water to your hot water tank. Access to this when attempting to fix your boiler pressure is usually behind a hatch or flap that has a spot where a filling loop key should be inserted. Turn the boiler back on and check. 100% positive You are looking for a braided hose with a small fill valve on it. Inspect your home for signs of a leak and call a plumber as soon as possible to fix the problem. Even a small leak can lead to a drop in pressure over enough time. Close both valves once youve reached the desired pressure. If you wish to do it yourself, then stick to the following steps to do so correctly and without risk. Close the valve and turn the boiler back on. Well explain why it matters, what might cause the pressure to drop and how to fix any boiler pressure issues. Unfortunately, it doesnt work like that. By keeping the pressure at the proper range, you not only get an efficient boiler, but you also minimise the damage on your pipes. 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. An external one will need to be attached by you, so you should attach it during Step 2 and then remove it before turning the boiler back on in Step 6. You dont want to be left without hot water or heating. . Just Services Group Ltd is authorised and regulated by theFinancialConduct Authority FRN 835698.Credit subject to age and status. The pressure in a central heating system will usually need to be topped up only once or twice a year. Unfortunately not, but it is always worth a try. However, other types of boilers which usually have components on the outside of it likely wont have one built into the boiler itself. 3. Do You Have To Turn Boiler Off To Repressurise . Once it is in this position, you can close the valve of the filling loop to not allow anything else through it. feedback, Could be in the airing cupboard or under sink, Sheffield Member since 6 Nov 2010 It will always save you money in the long run. If your boiler starts to lose pressure again, turn it off and contact a certified boiler repair person. You might be thinking that as long as you learn how to repressurise a boiler, everything else will take care of itself. Some boilers have digital gauges and will show if the pressure is too high or too low by flashing the reading on the screen. Hayle Member since 22 May 2018 Don't forget to put the key back in the tray, ready for the next time you need to repressurise your combi boiler. How to repressurise/refill a combi boiler. As you turn the handles, you should start to hear water flowing into the system. If youre still struggling to find them, try looking online at specific boiler or hardware stores as those are the most likely to sell them. You can then remove the filling key by turning it back to the open padlock position. 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. Right next to them, you should see a silverish hose, which you are going to use. Theres clearly a problem and its best to get an engineer to have a look at whats going on. Just make sure the valve is firmly shut before firing the boiler. All you have to do is contact us and ask for a professional to resolve the issue as soon as possible. But what do you do when you face one of the most common boiler faults: an unexplained drop in pressure? At the heart of it all, it does the same job. http://www.vaillant.co.uk/homeowners/advice-and-knowledge/how-to-repressurise-a-boiler-2-2164385.html. Turn off the boiler. Ensure the filling loop or relief valve is tightly closed. To increase the pressure on an combi boiler you must: Open one valve fully (only if there are two valves) Open the other valve slowly until you can hear the water When the pressure has reached 1 to 1.5 bar close both valves Reset the boiler (if needed) An external filling loop hose is braided with compression fittings on each end. You'll see the filling loop handles at a 90 angle to the pipe. Before removing the key, grab a rag or cloth to catch any water that may drip from the manifold. Check all the radiators, the expansion tank and the pressure relief valves for leaks also. However, if you have a conventional boiler system, you may have a self-filling water tank (usually located in the loft) which controls the pressure for you. A part of the external fitting loop connects to your main water line, and the other connects to your boiler. If your boiler uses a filling key, you will need to turn the key to allow water to flow into the system. Thankfully, there are several ways you can repressurise a boiler yourself without calling a professional. When the pressure dial reaches 1.5, you can turn the white knob back off. Even the types of valves may vary. **Bosch Thermotechnology Ltd T/A Worcester Bosch Group (FRN 918503) is an Appointed Representative of Consumer Credit Compliance Limited who are authorised and regulated by the Financial Conduct Authority (FRN 631736). Turn the knob/lever of the filling loop slowly to let the water in the boiler. Inspect the boiler filling loop. If valves are difficult to turn, spray with WD 40 and wait for a few minutes. 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