Identify and check the boiler pressure gauge. Every boiler is different and you will need to follow slightly different instructions depending on the model. A flat head screwdriver is usually the best tool for this. Depending on how low the pressure of your boiler is, you should allow water in through the valves for around 10 seconds. An older combi boiler might have a filling key rather than a filling loop. If youve tried everything we described in this article, and nothing helps, we suggest hiring a certified technician to inspect your water heating appliance. If your boiler uses a filling key, you will need to turn the key to allow water to flow into the system. Additionally, check the optimal running pressure in the manufacturers guidelines. 4. 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. My Plumbers. Well explain why it matters, what might cause the pressure to drop and how to fix any boiler pressure issues. If you require further help to repressurise your boiler, call a qualified engineer to fix the problem. 3. 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. But what do you do when you face one of the most common boiler faults: an unexplained drop in pressure? ","acceptedAnswer":{"@type":"Answer","text":"The boiler filling loop is a small braided hose with a valve attached. This will start to increase the pressure gradually. They usually come as an additional attachment with the boiler. For example, Worcester Bosch, you turn the key from the open to the closed padlock symbol, then turn the knob beside it counterclockwise to top up the water. 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). Turn the knob/lever of the filling loop slowly to let the water in the boiler. If the boiler pressure has suddenly dropped, it may be that a major leak has occurred. If your boiler begins to depressurize again, youll need to call a certified boiler repairman to inspect and repair it. Combi boilers need to be connected to the mains in order to increase the pressure. How to Powerflush a Central Heating System. If youve exceeded the recommended operating pressure by approximately 0.5 bar, you can remove it from the system by bleeding a radiator with a radiator key to repressurise your boiler. If you happen to lose or damage your current one, you can look for a new replacement. As a fourth-generation family business, we think long-term. Ones that cater to professional plumbers and heating engineers are bound to have stock ready. Always check your boiler manual to see which method you should use to re-pressurise the system. . If it does, theres a chance you may have a leak. If you find yourself re-pressuring it rather too frequently, you most likely have a leak somewhere in the appliance. The connections are close to one another, so most internal filling loops are shorter than external ones. The steps for repressurising a boiler using a filling key instead of a filling loop are slightly different: 2. 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. feedback. Bosch Thermotechnology Ltd, Registered Office Address- Cotswold Way, Warndon, Worcester, WR4 9SW Company registration number in England 1993294. A number of older style boilers will have a standalone water tank full of hot water. Written By:JustBoilers.com Experts| Last Updated:July 2022. 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. Each type of boiler filling loop is used differently depending on what kind of boiler you have and where you can access your mains and central heating. 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. Turn the key to the right, until it is next to the closed padlock symbol. There are also two valves: one to control the water flow (stop valve) and the other to ensure the boiler water doesnt go back to the mains (double check valve). 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. High boiler pressure could end up damaging your boiler and its system as it wont be used to the high pressure that it is currently running at. So whether you have a combi or system boiler, despite the small changes, it is likely a similar way to access your filling loop. Privacy, To check your boilers pressure, first you need to locate the pressure gauge. Repeated repressurisation will cause a build-up of debris, namely sludge-like accumulations, inside your boiler. ","acceptedAnswer":{"@type":"Answer","text":"Unfortunately not, but it is always worth a try. Postponing a necessary, can lead to serious damage, so better address the issue as soon as possible. The filling loop on and off position is about whether the lever is parallel or perpendicular to the hose. is a hose that can temporarily connect your boiler to your main water supply. This post explains everything you need to know when it comes to re-pressurising a boiler and how to do it. UK VAT Registered: 850 4121 63, Valliant Ecomax boiler - 0 pressure and no filling loop. Even a small leak can lead to a drop in pressure over enough time. Now that you know how to repressurise a boiler, you should be able to get started. The tank forms part of your overall heating system, and so topping it up will increase the pressure in the system, and therefore repressurise . Plumbingforce prepared this handy guide to help you get to know your boiler filling loops. The permissions of Consumer Credit Compliance Limited as a Principal firm allow Bosch Thermotechnology Ltd T/A Worcester Bosch Group to undertake credit broking. Make sure to leave the hose attached. Turn the boiler on and check to see if it is now working correctly. The key can be inserted into the keyhole and put into the unlock position. The hose can be braided, but some models forgo this and simply have a pipe connecting the boiler and water mains with the proper fittings and valves. Stop once it reaches the recommended level for your boiler. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC authorised and regulated by Financial Conduct Authority. However, there are two main ways to top up your boiler, either via an external filling loop or an internal filling loop (either keyed or keyless) - and both methods are demonstrated in the video and the step-by-step guide below. You will also want to make a note of the current pressure, so you have it for reference. Why is My Baxi Boiler Not Firing Up? Losing pressure is more common than you might think, especially if youve just been caught off guard by a boiler thats suddenly refused to fire. Do You Have To Turn Boiler Off To Repressurise . You can easily find a filling loop in your local hardware stores. Step 6 - Remove the filling key. Repressurising is a delicate process that needs to be done the right way. Here are helpful steps you can take: Turn off your boiler or shut down the electricity. By signing up you are agreeing to receive emails according to our privacy policy. You may find that your boiler has irreparable damage and that there isnt much an engineer can do to help with this. You dont want to be left without hot water or heating. Repeated repressurisation will cause a build-up of debris, namely sludge-like accumulations, inside your boiler. 3. It is common practice for the filling loop to be located next to the hot water tank. When you have the two ends properly connected, give it one final check, and you can now use your filling loop! Open the valves. Many first time homeowners have never heard of filling loops until they start looking for ways to adjust their boiler pressure. Step 2. You should then check the pressure gauge and make sure your boilers pressure is at the recommended level of between 1-1.5 bars so that the pressure is not too high or too low. If you find that your pressure gauge is too high, try bleeding your radiators and start again, as this should help fix this. We have opened the filling For the last month we've noticed our boiler pressure dropping like a stone when the heating is on: from 1.5 bar to 0.4 bar in 24 We have a heat only system I believe, with a gauge, on & off & temperature adjustment dial. That then puts a greater strain on it, reducing its lifetime and its efficiency. This article was co-authored by wikiHow Staff. Then, close both valves, one at a time. feedback, Could be in the airing cupboard or under sink, Sheffield Member since 6 Nov 2010 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). How to repressurise/refill a combi boiler. Repressurise your boiler! The best tool to use is either a wrench or a spanner. Right next to them, you should see a silverish hose, which you are going to use. "}},{"@type":"Question","name":"What happens if you over-pressurise your boiler? "}},{"@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. 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. Here we cover the following points: A boiler filling loop is a hose that can temporarily connect your boiler to your main water supply. 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. If you cant find the boiler filling loop, its possible that your unit doesnt have one. Make sure to keep a close eye on your boiler. You need to make sure you have the right end on its designated terminal. Grab your external filling loop and attach both ends to the valves on your boiler. You can typically find internal filling loops in. Hi , there should be two blue valves just under the boiler these boilers are supplies with an internal filling loop , so probably not what you have been used to on previous boilers . Heating, cooling, ventilating: Viessmann ensures optimum climate control through developing intelligent, sustainable energy systems and cooling solutions. 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. 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. This part is fundamental for the whole procedure. Have a look underneath boiler Almost any local hardware store will sell them at relatively cheap prices, as well as online retailers that sell a wide range of items, just search it up. How do you Repressurise a boiler without a filling loop? After that, turn the white knob to the left of the key. Condensing vs Non Condensing Boilers: Whats The Difference. Re-pressurising your boiler isnt a complicated procedure, and you should regularly check the pressure to make sure the system is running as it should. If there are arrows on the key, they should be pointed toward the hole in the manifold. Turn the valve next to the key until water flows through it. Not all boilers are compatible with a filling loop; this is particularly true for older combi boiler models. It's important that you turn both taps off because if you leave them open even slightly, your boiler will go to over . {"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":"