View Here : Boiler Pressure Dropping
If the pressure gauge on your boiler indicates high pressure (above 2.75 bar), then you may need to bleed a radiator to bring the level down to around 1.5 bar. This can be tricky and, occasionally, dangerous; due to high water temperatures.
My Boiler Keeps Losing Water Pressure – Help! Does your boiler or central heating keep losing water pressure? Here’s a handy guide to help you try to resolve the problem yourself, with your own boiler.
Boiler pressure drop If the pressure on your boiler has dropped below 0.75 bar a safety pressure switch will prevent the boiler from firing, leaving you without heating and hot water until the pressure in the central heating system has been increased to 1 bar or above.
A common customer call will be “My boiler pressure is dropping every day or so” or “I have to top up my boiler every day or so”, an average leak is about 2 days so 5 litres divided by 48 hours is about 100ml per hour. That 100ml is a small glass of wine and...
Boiler losing pressure, where is the filling loop. If your looking for the filling loop but unsure, the filling loop is most likely 99 out of 100 within a meter of the located boiler. This does not include any boiler that does have a filling loop at all and will most like have a filling valve underneath the boiler.
Had a brand new boiler installed. The pressure was still dropping but we were at least getting 2-3 days without having to top it up. This is the first winter since we had the boiler installed and now that we are using the heat f more regularly the pressure is again dropping every 2-3 hours.
Faulty pressure relief/safety valve. This is a direct consequence of the over pressurisation described above. When the pressure reaches 3 bar, the safety valve automatically opens, however, in most cases the safety valve will be unable to close properly due to system debris becoming lodged on the valve seating.