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How to re-pressurise a Baxi boiler?

4 Answers

Answered by Alfs Gas Ltd

10th August 2019

Alfs Gas Ltd answered the question "How to re-pressurise a Baxi boiler?"

There are a number of different filling options in use across the Baxi range. If it is an integral filling loop it will be situated underneath the boiler, to the right hand side towards the front of the boiler. There could be 2 knobs or taps which will need to be opened or on newer models a green lever. Whichever option you find you will need to open them slowly until you hear water going in to the boiler. When the pressure gauge reads betwee 1 to 1.5 bar close the taps back off. If there is no integral filling loop on the boiler then look for a silver braided hose on the pipework near the boiler. This will usually have one or two taps to open or may even require a flat bladed screwdriver to open it. Fill to 1 to 1.5 bar as described above then close off again.

Answered by SDW Plumbing & Heating

5th July 2019

SDW Plumbing & Heating answered the question "How to re-pressurise a Baxi boiler?"

Topping up the pressure in a boiler depends on how the installer has fitted the system. Some boilers come with an integral filling loop, this is normally located on the right hand side of the boiler underneath by the isolation taps connected to the boiler. Normally 2 taps that you would need to open until the pressure gauge reads 1-1.5 bar, then you need to close them again. Alternatively, there might be a silver braided hose between two pipes under the boiler. Usually two taps to turn again.

Answered by Freedom Heating

20th February 2019

Freedom Heating answered the question "How to re-pressurise a Baxi boiler?"

On the newer Baxi 600 range the filling point is a green lever located just under the pressure gauge beneath the boiler, if the pressure is to low the screen will flash, pull the lever downwards and hold it until the pressure gauge reads 1 or just over, the screen will stop flashing when you have achieved enough pressure,

Answered by Stroud Boilerworks

11th February 2019

Stroud Boilerworks answered the question "How to re-pressurise a Baxi boiler?"

Hello from Jonathan at Stroud Boilerworks. If your Baxi has a pressure guage with a needle it needs to be reading over 1 bar and not in the red area, not to much at one end of the guage or too little at tyhe other end of the guage. With insufficient pressure the boiler may shut down, overheat or be noisier than usual. To top up your pressure on your boiler is different from one boiler to the next and depends on how the installer connected the system to the cold water supply. Look for a silver coloured braided hose with black taps or screwdriver connections. Some Baxi boilers have built in filling loops to top up pressure and they are accessed under the bottom right hand side of the boiler, look for black plastic tear drop shaped "taps" or a blue tap or lever. Check with your boiler service engineer and ask them to show you how to top up your pressure, they should be happy you're showing an interest as it's something as the householder you can do yourself.

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