Glow worm boiler where is the filling tap

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If your water pressure has dropped you may be presented with a display that looks similiar to that below:. Locate the filling loop underneath the boiler and rotate the right hand tap into the "open" position Clockwise :.

Open the left hand tap into the open position as in the picture below clockwise. You will hear a noise at this time as cold water mains pressure re-pressurizes your central heating circuit. Leave the tap on until the pressure reaches between 1 to 1. Close the Right hand tap into the "closed" position anticlockwise. Rotate the right hand tap into the "closed" position anticlockwise.

One of the leading causes of a loss of pressure comes from a leak within the system, and these can be so tiny that you may not even notice them. So, if your Glow-worm boiler keeps losing pressure, then you may need help to locate and fix the leak. There are times, though when a pressure problem can be due to a mechanical problem. In that situation, a replacement system can sometimes be a more economical choice than spending money on an older less efficient boiler.

Find the best combi boiler here. There are two ways of repressurising your Glow-Worm boiler, depending on the model and whether they have a built-in or external filling loop. Please select a service and enter a location to continue You must log in or sign up to reply here. Show Ignored Content. Related Threads. Replies: 19 Views: 4, Replies: 12 Views: 34, HenriC 13 Oct Replies: 0 Views: 2, ElBurro 3 Jan This appliance doesn't come with an integrated filling loop.

There should be an external filling loop fitted to the system by your original installer. This will either be located below or around the boiler area or in the cylinder cupboard. Although there are many variations on what a filling loop will look like they will all carry out the same function so will look broadly similar. Two examples of external loops will look like the pictures below and connect across two separate pipes:. This type of filling loop has two taps on it. You would open one fully then slowly open the other until you start to hear water passing through.

Once you hear water passing through keep an eye on the boiler's gauge, pressure reading or external pressure gauge and close the valve when it reaches 1 - 1. This type of filling loop only has one tap on it:. With this type you would slowly open the tap until you start to hear water passing through.