The Plumbers Blog: How to Repressurise a Boiler – Complete Guide for Anyone

Categories:Boiler Repair, Boiler Service, Boilers, Save Money

Every boiler is different, so its important that you check your boiler manual. Once you have found the boiler manual, go for the manufacturer’s instructions.

Our boiler service engineer will always stress that, If you’re unsure, can’t find the strength to do this task, call a professional.

With that in mind, in this article, we are going to share with you how to re-pressurise your boiler in a easy and safe way. 

Here are the basic steps for re-pressurising your boiler (if you have a filling loop – what’s this?):

What is a filling loop?

A boiler filling loop is an incredibly useful tool that is installed during a new boiler installation.

The filling loop provides a temporary connection between the boiler and the mains water supply so that you’re able to re-pressurise and fill your boiler with water.

If your boiler pressure has dropped below the recommended bar, you will need need use the boiler filling loop to top up the pressure to ensure your boiler operates as it should. 

Things to take away from this article

Remember, if you’re uncomfortable with re-pressurising your boiler, always call a boiler service engineer will be happy to advice or will even do it for you.

Don’t overfill your boiler otherwise you will flood it, this will cause a lot of damage.

Check your boiler manual to find out where your filling loop could be and what the recommended pressure should be.