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. For this, you will probably need to get your boiler serviced by a Gas Safe registered engineer, so they can examine it and see what is wrong before a breakdown. Insert the filling key into the keyhole and unlock it. If your boiler continues losing pressure and there is no leak, then there may be a fault with the boiler. Use an adjustable spanner to tighten both ends. 69 You can go between the different models and pick the one you like the best. Baxi Boiler. If you are having a tough time finding a filling loop, you can try to target plumbing and heating speciality stores. **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). 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? And since the whole neighbourhood draws their water from the same source, this can lead to very serious and very expensive problems. 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. Save my name, email, and website in this browser for the next time I comment. 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. Now use each valve to let cold water get into the whole system. A part of the external fitting loop connects to your main water line, and the other connects to your boiler. However, there are several standout differences. If youre doing it more often than you think you should be, contact your installer asyour boiler could be leaking. 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. Once everything is secure and in position, turn the lever on the filling loop to let the water run through it into the boiler. . This should be enough water to get your combi boiler back up to pressure again. 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). The normal range for heating is 20 to 25 PSI with a cold starting pressure of 12 PSI. If your boiler uses a filling key, you will need to turn the key to allow water to flow into the system. If youre unsure about anything, its a good idea to call an engineer who can help you. Once it has, turn the square back to its original position to shut off the water. Use an adjustable spanner to secure the connection between the filling loop, the boiler and the mains. 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. By re-pressurising your boiler, youre allowing more water to enter the system from the mains supply. In some cases, you may find that your filling loop issues actually lie with bigger issues for your boiler that need to be fixed. feedback. If it takes longer than this, you could have a leak in the system. This article was co-authored by wikiHow Staff. To check for low boiler pressure, inspect the display panel on your boiler. When it isnt it should be turned off and disconnected until the next time you repressurise your boiler. 05272398. Turn off the Power. Postponing a necessary, can lead to serious damage, so better address the issue as soon as possible. Dry off the key and pop it back into the tray before putting the . The plastic part of the boiler is placed in the metal part of the boiler. One end will have a handle valve while the other end will have an isolation valve. When the pressure dial reaches 1.5, you can turn the white knob back off. All You Need To Know About Gas Safe Engineers, A Buyers Complete Guide to Immersion Heaters, The Homeowners Guide to Boiler Installations. At the heart of it all, it does the same job. 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. How to repressurise/refill a combi boiler. Afterwards, insert your filling loop key after opening the hatch and place the filling loop in the correct area. Remove your external filling loop, put the cap back on the isolation valve, and everything should be back up to scratch. Bosch Thermotechnology Ltd, Registered Office Address- Cotswold Way, Warndon, Worcester, WR4 9SW Company registration number in England 1993294. Wait for the water pressure to reach between 1 and 1.5 on the pressure gauge. My Plumbers. Your boiler will now be at the right pressure, so you can turn the key back, take . 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. Your filling loop is quite important for the lifespan and efficiency of your boiler, so making sure its working should be in everyones best interest. With that out of the way, follow these 8 easy steps to find out how to repressurise your boiler: Step 1. 2. 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 Our Find a New Boiler tool is the easiest way to find and compare Worcester products suitable for your home heating requirements and only takes a few minutes. 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. Turn the manifold nut and the manifold key back to the locked position. Terms and conditions ","acceptedAnswer":{"@type":"Answer","text":"Over pressurising a boiler is not advisable because it has been designed to work within a set pressure range. feedback, Could be in the airing cupboard or under sink, Sheffield Member since 6 Nov 2010 Well explain why it matters, what might cause the pressure to drop and how to fix any boiler pressure issues. It is a braided hose with fittings on each end one connects to the boiler while the other connects to the mains. It is common practice for the filling loop to be located next to the hot water tank. Keep your eyes on the pressure gauge until it reaches 1.5 bar. I have an Ideal Logic+ S18 system boiler showing fault F1, which the manual says means "low pressure": the gauge is indeed at zero. 2022 Vaillant Group, Nottingham Road, Belper, Derbyshire, United Kingdom, DE56 1JT. This indicates that water has been lost from the system and needs to be replaced. Types of boiler filling loops An older combi boiler might have a filling key rather than a filling loop. Check the filling loop, making sure both ends are attached and secure. 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. Fit your external filling loop. Easy to use filling loop to pressurise system . Monitor the valve until it reaches the recommended level for your boiler model. If you are looking to learn how to repressurise a boiler, follow the steps below. Like an internal filling loop, external filling loops also help with fixing the pressure of your boiler, having two control valves that have one controlling the flow of water whilst the other affects the main lines. Have a look underneath boiler You may need tobleed your radiatorsto bring the pressure back down. 1. Afterwards, make sure everything is correct and in place and this should be completed. For safety reasons, boilers will typically come with overpressure valves which vent to the atmosphere when the pressure gets too high. Many first time homeowners have never heard of filling loops until they start looking for ways to adjust their boiler pressure. Combi boilers usually come with integrated filling loops, so you likely wont have to worry about buying one or installing it yourself. Before removing the key, grab a rag or cloth to catch any water that may drip from the manifold. feedback. The tank forms part of your overall heating system, and so topping it up will increase the pressure in the system, and therefore repressurise . Additionally, check the optimal running pressure in the manufacturers guidelines. Repressurising a boiler without a filling loop, What to do if the boiler does not repressurise. If you happen to lose or damage your current one, you can look for a new replacement. In fact, it is one of the few things you can handle every couple of months. The turn the tap on the right-hand side to the open position. 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. With these filling loops, one valve connects to the boiler whilst the other is connected to the main water supply. Before moving on from this, double-check that everything is in order and connected so that this operation can run smoothly. In that case, you can try to check out the central heating filling loop diagram or combi boiler filling loop diagram online. It doesnt minimise the risk. You should see valves at both ends of hose. That is designed to prevent large buildups of pressure from causing ruptures inside the boiler, and the explosion that would likely come with it. If valves are difficult to turn, spray with WD 40 and wait for a few minutes. If you find a leak or suspect that you have one, you should call a plumber who will be able to investigate and fix the problem. 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. "}},{"@type":"Question","name":"Does repressuring the boiler always work? Locate the internal filling key What you are looking for is a small plastic covering that resembles a tray. The typical level to aim for is around 1 - 1.5 bar; any less and it is likely that your boiler will need to be repressurised. When they arent, you can easily buy it separately. The key can be inserted into the keyhole and put into the unlock position. How to Repressurise a Boiler via a Filling Loop. Turn the valve next to the key until water flows through it. This will be outlined in the boiler manual. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/b\/bf\/Repressurize-a-Boiler-Step-1.jpg\/v4-460px-Repressurize-a-Boiler-Step-1.jpg","bigUrl":"\/images\/thumb\/b\/bf\/Repressurize-a-Boiler-Step-1.jpg\/aid9295602-v4-728px-Repressurize-a-Boiler-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"