How to Re-Pressurise your Combi-Boiler

Low Water Pressure in my Combi Boiler

A central heating system controlled by a boiler is full of water including radiators and pipework around your home, In order to fill the system with water you have a device called the filling loop shown below;

In the picture both valves are in the closed position, across the pipe.

Firstly you need to check the current pressure

Next you need to open one of the valves into the open position by turning the lever inline with the pipe.Now you need to open the second tap keeping and eye on the pressure gauge located on the control panel, valves or pipework. The correct working pressure for the boiler is 1 – 1.5 bar.

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