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Boiler losing pressure? Common causes and how to fix them

Are you worried that your boiler is losing pressure? This can usually be corrected by finding your filling loop. That’s located in the pipework underneath your boiler. The silver flexi pipe with one or two taps can be turned to the 45 degree point until the pressure reaches the right level.

Is A Drop Always Bad News?

A drop in pressure isn’t always a death toll for a heating system. If this is the first time you have noticed your pressure drop, then you just need to repressurise it. If, however, this keeps happening again and again, it might be a sign of a more serious problem. You could even need a new boiler.

Why Does Pressure Drop?

Pressure can drop for a number of reasons. It might be a problem with an internal component of the boiler. You won’t be able to fix this yourself, but you can call a pro to check it out for you. Alternatively, it’s possible that the boiler is leaking. You can usually spot this by removing the cover and checking for any signs of water. There could even be a puddle underneath your boiler.

It may also be that a seal has failed somewhere in your heating system. Once you identify this, you can call a Gas Safe registered to fix it for you. Your boiler will then work as good as new with the right pressure.

We hope this helps you understand some of the key reasons your boiler could be losing pressure and what you can do about it.