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If you’ve come home after work and noticed it’s colder than usual, there might be a problem with your heating system. Your next order of business is to check the radiators. If they’re cold in certain places only, you might have to bleed them to remove a bubble of air. But, if the entire heater is cold, then the problem is most probably low pressure in the boiler.
So, in this article, the Fantastic Services team will explain how to repressurise a boiler, so you don’t have to deal with this problem ever again.
So if you:
Then keep reading – this blog post has the solution!
In general, a domestic boiler is supposed to heat water and transfer it to the radiators in your home, creating an effective heating system. The most common types of domestic boilers are:
To check whether there’s a drop in pressure in your boiler, find the water pressure gauge. If it reads less than 1 bar, you might have lost water from the system due to leaks or bleeding. If the pressure reads above 2.75 bar, then you may need to bleed a radiator to bring the level down. Normal pressure is around 1.5 bar.
A boiler and a heating system can stumble upon a lot of different complications. In most cases, we don’t recommend fixing those issues on your own. The most common reasons for a drop in pressure are:
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Since there are different types and brands of boilers, the first thing you should do is check your instructions manual. There is usually an explanation of how to safely repressurise the boiler by yourself. Then, just follow the instructions:
The first step is always to switch off the boiler to allow it to cool down completely. This is an important safety measure. Never work on a boiler that’s still running.
The boiler filling loop is a component that provides a temporary connection to the mains in order to pressurise the central heating system. It allows for the pressure to be easily normalised. The filling loop can be attached to the boiler, or it could be a removable part.
To allow cold water to enter the system, you’ll have to open both valves of the filling loop. This will start to increase the pressure gradually. Keep your eyes on the pressure gauge until it reaches 1.5 bar.
Once the pressure is normal, close the valves one after the other. Remove the filling loop if it’s removable.
Once that is done, turn on your boiler and recheck the pressure. If it stays around 1.5 bar, you’ve done an excellent job. If you’re still experiencing issues, then you’ll need a certified technician to take a look.
Are you experiencing problems with your boiler? Does your heating system not work the way it used to? There are a lot of things that can go wrong and most of them need to be looked at by a certified technician.
If you don’t know how to repressurise a boiler or aren’t comfortable doing it, don’t try to fix it by yourself! And under no circumstances should you open up the boiler itself! Not only could you lose your boiler’s warranty, but it could also be dangerous, depending on the issue. Get in touch with the boiler repair specialists from Fantastic Services and let the professionals fix your problem! You can also think about getting a boiler cover and save money in the long run in case of an unexpected boiler breakdown.
Have you ever needed to learn how to repressurise your boiler? What was the problem and what did the boiler technician say? Tell us in the comments!
Image source: Alexander Raths / shutterstock.com