Cooling And Heating
Written by Dale Richardson - Updated: June 23, 2023
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If your Greenstar 28i Junior pressure is low, you've come to the right place. There are a lot of things that can go wrong with a boiler, so it's good to pay attention to things like boiler pressure. While this may seem like a massive issue, it's actually something that you can fix at home, yourself. No fuss, no engineers, and just a bit of elbow grease will solve this in an hour or so.
If your Greenstar 28i Junior's pressure gauge has dropped or it's become less efficient, you'll need to up the pressure. You'll need to identify the filling system you have and then just follow our instructions, easy as that!
Now without further ado, let's get right into it, shall we?
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Your boiler will need to be repressurised differently depending on its filling loop. These come in one of three forms:
Before we get started, if you're a visual learner like myself, click here for a video guide on how to repressurise a boiler.
If you have an external filling loop, you'll notice two valves near the boiler. One will be running from the main's cold water, while the second will be connected to the heating system. To repressurize an external filling loop boiler:
To repressurize a keyed internal loop, you'll first need to locate the key. This will generally appear as a plastic "key" or tab on the bottom of the boiler. You may have also been given one upon installation if you owned the home when it was installed.
To repressurize your boiler:
This is by far the easiest type of filling loop to repressurise. You'll see a blue lever at the bottom of your boiler attached to a valve. Simply pull the lever down until it reaches where you need the pressure (1 bar) and release the lever. Simple as that!
Finally, something that you can fix yourself! While this is an easy fix, hopefully, it got you feeling like a big, strong fixer-upper for your home. Low pressure on a boiler is never fun, but it's luckily a super quick fix that takes very little technical know-how. As long as you can identify whether you have an internal or external filling loop (and whether or not it's keyed), you'll be able to get your boiler back up to proper pressure in a matter of minutes.
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