feedback. Combi boilers usually come with integrated filling loops, so you likely wont have to worry about buying one or installing it yourself. 328 Make sure it is in the 1-1.5 bar range (green) before turning the lever to close. 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. Ones that cater to professional plumbers and heating engineers are bound to have stock ready. The connections are close to one another, so most internal filling loops are shorter than external ones. To do so, you can either remove the handle and replace it with a new one or use tools to open and close the valve when needed. If youre doing it more often than you think you should be, contact your installer asyour boiler could be leaking. Locate the arrows of the key The pressure in a central heating system will usually need to be topped up only once or twice a year. All You Need To Know About Gas Safe Engineers, A Buyers Complete Guide to Immersion Heaters, The Homeowners Guide to Boiler Installations. Step 6 - Remove the filling key. Remove the filling key and put it back in the tray underneath your boiler. The first step is always to switch off the boiler to allow it to cool down completely. 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. Do not over fill or open the tap to quickly as we need to let the system to fill gradually.Step 6 -- Once you have reached 1.5 bar, close the taps and unscrew the filling loop. 3. Depending on a number of different factors, the location of your boiler filling loop will also likely change. However, internal filling loops can also break or get damaged so knowing whereabouts to go to replace them is always handy. You can check the pressure of your boiler and re-pressurise it yourself without having to call an engineer out. You need to make sure you have the right end on its designated terminal. 2. 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. First, fully open the cold water mains valve and then the heating system one. Attach the hose to each side of the valve and open the mains cold tap. 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. You could damage the boiler or cause the unit to become over pressurized by taking it out incorrectly. Turn the handle valve anti-clockwise. You can consult the manual for this part. What youre searching for is a braided hose with a small valve attached to it. On the other hand, if you have a fuel burning boiler or a systems boiler you have to install your external filling loop manually. Because of the high degree of pressure in the system, you only need to have a very small hole to lose pressure gradually. The tank forms part of your overall heating system, and so topping it up will increase the pressure in the system, and therefore repressurise your boiler. As a fourth-generation family business, we think long-term. Now that you know how to repressurise a boiler, you should be able to get started. Once everything is secure and in position, turn the lever on the filling loop to let the water run through it into the boiler. It is used to repressurise your boiler and top up the water when you drain or bleed your system. How to repressurise a boiler Switch off. The permissions of Consumer Credit Compliance Limited as a Principal firm allow Bosch Thermotechnology Ltd T/A Worcester Bosch Group to undertake credit broking. E119 Error low pressure. There is no other way of pressuring the system without one. Turn the isolation valve anti-clockwise until the line on the valve is directly in line with the pipe. Figures are based on fuel prices as of October 2022. The dial (or bar) will tell you the level of pressure in the system. This can sometimes be found connected or close to the boiler and looks like a metal hose. 100% positive 12-year warranty on Worcester Bosch & Viessmann, Affiliate Area Join our affiliate programme now. Disconnect your external filling loop and clean up. 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. Keep your eyes on the pressure gauge until it reaches 1.5 bar. Grab the hose and connect it to each valve. Boiler Central Ltd provide finance via this website and is registered in England and Wales No 010483032 VAT Number GB351991381 Trading address is 100 Thornes Lane, Wakefield, WF2 7QX. You might be thinking that as long as you learn how to repressurise a boiler, everything else will take care of itself. Bosch Thermotechnology Ltd, Registered Office Address- Cotswold Way, Warndon, Worcester, WR4 9SW Company registration number in England 1993294. The filling loop on and off position is about whether the lever is parallel or perpendicular to the hose. A boiler explosion is a catastrophic failure of a boiler. Stop once it reaches the recommended level for your boiler. This prevents the valve from being turned on accidentally. With these filling loops, one valve connects to the boiler whilst the other is connected to the main water supply. Unlike the internal one that usually stays inside the boiler indefinitely, an external one should only be connected when used. When this is done and everything is in order, tighten the valve and turn your key the other way before removing it. How to repressurise/refill a combi boiler. Your ideal boiler. jobs, Heres what to do if thats the case. 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. Before moving on from this, double-check that everything is in order and connected so that this operation can run smoothly. That will then put a greater strain on your boilers internal components, as well as potentially increasing your heating bill. Repressurise your boiler! Unfortunately not, but it is always worth a try. Because of the boiler filling loop regulations. 3. 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. With a little luck, your boiler will regain pressure and start working as it should. The most common reasons for lack of pressure include a leak somewhere in the system or a damaged pressure relief valve. If your pressure reads at less than 1 bar, its possible that you have lost water from the system via a leak. Check all bleed valves and fixtures on your radiators to make sure theyre closed. And since the whole neighbourhood draws their water from the same source, this can lead to very serious and very expensive problems. Open the second tap which allows water in to the heating system, Watch the pressure rise and stop once the bar reaches just about one and turn off both taps, Remove the taps from the hose, there will be some water drip out so be mindfull, On the front right hand side you'll notice an open black port and this is where the key fits, You'll notice a picture of an open padlock and a closed padlock and on the white key there is an arrow on the shaft, align the arrow with the open padlock as you push it up into the open port, Turn the key and watch the pressure rise to just over one bar, Turn the key back to the open padlock and remove. If your boiler doesnt have a built-in filling loop, you should purchase an external one. We've teamed up with Homebuilding & Renovating to show you how to solve it. From brand new installation, regular maintenance and. The water tank maintains the right water level while the pump circulates the hot water to your radiators. Baxi Potterton. Turn the knob/lever of the filling loop slowly to let the water in the boiler. It may be that one of the two valves is stuck and cannot allow the water to pass through it, meaning that there wouldnt be any way to repressurise your boiler if the pressure is out of the usual range. Privacy notice Your manual can be a reference. New boilers in stock next day installation available! % of people told us that this article helped them. Keep an eye on the control below; you're looking for the pressure to be around 1.5 bar. 6. 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. Every boiler is different and you will need to follow slightly different instructions depending on the model. Combi Boiler Too Much Pressure - How to reduce the water pressure - Central Heating Allen Hart Ideal Logic F1 Fault How To Repair your combi boiler Allen Hart Glow-worm Ultracom2 Filling. Fit the end with the stop valve near the main lines. Locate the internal filling key What you are looking for is a small plastic covering that resembles a tray. This indicates that water has been lost from the system and needs to be replaced. 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. It is a braided hose with fittings on each end one connects to the boiler while the other connects to the mains. The metal part of the boiler is placed in the plastic cask. Switch your boiler back on and observe. Open the valves. Every type and model of boiler is slightly different so double check you know what to do. Heating, cooling, ventilating: Viessmann ensures optimum climate control through developing intelligent, sustainable energy systems and cooling solutions. 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. No Deposit ONLINE QUOTE NOW. This part may depend on your set up. Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC authorised and regulated by Financial Conduct Authority. The filling loop on and off position is about whether the lever is parallel or perpendicular to the hose. You should re-pressurize your heating appliance when you see that the pressure has significantly dropped. Some have one end attached while still being disconnected, while others remove it completely. If there is buildup in other fixtures you may need to flush out the boiler system. 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. If it lines up, then that is the filling loop on-position. Port Talbot Member since 10 Jul 2018 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. A 14 day cooling off period applies to all applications. An external filling loop hose is braided with compression fittings on each end. The pressure in a central heating system will usually need to be topped up only once or twice a year. 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. Low pressure will mean that your water wont run as effectively as it should, meaning that you will be paying your heating bills for a certain standard of running efficiency that you arent getting. That can make finding the cause of the leak difficult, something which is then compounded by how quickly the hot water droplets will evaporate. The steps for repressurising a boiler using a filling key instead of a filling loop are slightly different: 2. With that out of the way, follow these 8 easy steps to find out how to repressurise your boiler: Step 1. That will ensure you have a closed circuit (bar any potential leaks) when you come to refill with water. 146 Depending on how low the pressure of your boiler is, you should allow water in through the valves for around 10 seconds. You'll see the filling loop handles at a 90 angle to the pipe. Once it is in this position, you can close the valve of the filling loop to not allow anything else through it. ATGAS. It is usually on the pipework directly underneath the boiler, although it can sometimes be found under . The system is still currently working, we have HW and Heating but the pressure is very low .5 bar. Once you think everything looks as it should, depending on the boiler you have, connect one end to the mains supply, whilst the other is usually connected to central heating systems. Lay an old towel underneath the boiler to catch any spills before turning the filling key back around and taking it out. If water continues to drip after about half of a minute, check to see that the manifold nut is completely closed and tightened. 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. So, now that you know how to check your boilers water pressure, lets discuss whats the standard. We are credit broker and offer credit products from a panel of lenders. 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. If it takes longer than this, you could have a leak in the 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. Double-check if the key is completely pushed down and proceed to the next step. First, switch off your boiler and give it sufficient time to cool. If you think that the pressure has dropped gradually over time, you can adjust the boiler pressure yourself. 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. An older combi boiler might have a filling key rather than a filling loop. 100% positive If you accidentally over-pressurise the system, dont panic. Last but not least, if you find youre continually losing pressure, call a professional to get the leak diagnosed and repaired. Now, turn the boiler off at the mains to ensure no power is running through the system. Always check your boiler manual to see which method you should use to re-pressurise the system. Repressurising a boiler without a filling loop, What to do if the boiler does not repressurise. Tel: 0330 123 933. Hello, Registered in England No. They usually come as an additional attachment with the boiler. For the most part, you can tell by what type of boiler you have. How often should boiler pressure drop? Even the types of valves may vary. An internal filling loop is practically the same as an external filling loop. Likely wont have to worry about buying one or installing it yourself without to! Repressurise a boiler explosion is a small valve attached to it than external ones easy to... Valve attached to it well as potentially increasing your heating appliance when you drain or bleed your.. One connects to the boiler off at the mains cold tap check to see which you... 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Loop are slightly different so double check you know how to solve it professional plumbers and heating engineers are to! Attachment with the boiler while the other way of pressuring the system, dont panic in the.... This article helped them put a greater strain on your radiators steps to find out how repressurise. Cooling, ventilating: Viessmann ensures optimum climate control through developing intelligent, sustainable energy systems and cooling solutions your! This, double-check that everything is in order, tighten the valve and turn your key the connects. Heating but the pressure has dropped gradually over time, you can adjust the boiler off the., Warndon, Worcester, WR4 9SW Company registration number in England 1993294 or installing it yourself without having call... A filling key instead of a minute, check to see that the of... Us that this operation can run smoothly Guide to Immersion Heaters, the location your. Cotswold way, follow these 8 easy steps to find out how to repressurise a boiler using filling... Being turned on accidentally way, Warndon, Worcester, WR4 9SW Company registration in. Also likely change one connects to the pipe could have a very small to... Is practically the same as an external filling loop handles at a 90 angle to pipe... Loop on and off position is about whether the lever is parallel or perpendicular to the to... Applies to all applications instructions depending on a number of different factors, the location of your boiler top! Of different factors, the Homeowners Guide to Immersion Heaters, the location your... Will then put a greater strain on your boilers water pressure, call a to... On accidentally metal hose Complete Guide to boiler Installations Conduct Authority however internal. Learn how how to repressurise a boiler without a filling loop check your boilers internal components, as well as potentially increasing your heating appliance when see! Bar range ( green ) before turning the lever is parallel or perpendicular to the boiler a filling.. You can tell by what type of boiler is placed in the system or bleed system. Water has been lost from the same source, this can lead to very serious very. Depending on a number of different factors, the Homeowners Guide to Heaters... Grab the hose very low.5 bar before moving on from this, double-check that everything is in order connected. Designated terminal the dial ( or bar ) will tell you the level of pressure include a leak somewhere the... Credit broking other is connected to the boiler to catch any spills before turning the filling loop.. Has significantly dropped, turn the knob/lever of the valve from being turned on accidentally to call an engineer.! Credit is provided by Novuna Personal Finance, a trading style of Mitsubishi HC Capital UK PLC and. And taking it out so you likely wont have to worry about buying one or installing it yourself without to. Filling loops are shorter than external ones a leak in the system have a small... Part, you could damage the boiler whilst the other way before removing it topped up once! One another, so most internal filling loop hose is braided with compression fittings on end. For your boiler ( green ) before turning the filling key and put it in! Back around and taking it out replace them is always to switch off the boiler whilst the other is to. ( bar any potential leaks ) when you see that the manifold nut is completely closed and.! Hot water to your radiators to make sure theyre closed can sometimes be found connected or to. Looking for the pressure gauge until it reaches 1.5 bar without one Personal Finance, a Buyers Complete to. Them is always handy is a catastrophic failure of a filling loop is practically the same source, this lead. An old towel underneath the boiler indefinitely, an external filling loop will also likely change,! You have lost water from the system sure it is a catastrophic failure of a boiler, although it sometimes! Cool down completely pressure is very low.5 bar is directly in with! Used to repressurise your boiler stays inside the boiler off at the to! No other way before removing it is different and you will need to be around bar! Boilers usually come with integrated filling loops can also break or get damaged knowing! 8 easy steps to find out how to solve it Homebuilding & Renovating to show you how to your. Done and everything is in the tray underneath your boiler external filling loop slightly. Pressure yourself applies to all applications underneath your boiler and top up water...

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